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@smurthys@hachyderm.io
2024-02-28 22:04:30

"10000000mAh USB Portable Charger Solar Power Bank"
Sure buddy, a *10 million* mAh portable power bank with solar panel, in a package that is roughly the size of a phone in a rugged case. For $17.59. 🤦‍♂️
Maybe 10 million mAh over the life of the unit. 😉
ebay.com/itm/385399232918

Picture collage showing different aspects of a USB power bank with solar panel on it. Orange trims.

2023 Super 10000000mAh USB Portable Charger Solar Power Bank For Cell Phone | eBay
Hot Sales ! Solar Panel: 1.2W. Stylish, portable ,user-friendly and durable for on the go use. 1 x Micro USB Cable. The iPhone Adapter and the A/C plug are not included with this device! Press once to open the SOS distress signal when the flashlight is turned on.

@fanf@mendeddrum.org
2024-04-24 19:42:03

sustainabilitybynumbers.com/p/ - Can solar and wind power Britain? An update of David MacKay’s numbers.

Can solar and wind power Britain? An update of David MacKay’s numbers
These technologies have developed a lot since 2008. Should we be any more optimistic about their potential to power Britain?

@vosje62@mastodon.nl
2024-04-29 05:20:51

Tumble in storage battery costs to boost shift to renewables, says IEA | #Reuters
reuters.com/business/energy/tu

The total capital costs of battery storage are due to tumble by up to 40% by 2030, the Paris-based watchdog said in its Batteries and Secure Energy Transitions report. "The combination of solar PV (photovoltaic) and batteries is today competitive with new coal plants in India," said IEA Executive Director Fatih Birol. "And just in the next few years, it will be cheaper than new coal in China and gas-fired power in the United States. Batteries are changing the game before our eyes."
@smurthys@hachyderm.io
2024-02-28 22:24:43

At Goodwill yesterday, scored a USB-C *36800mAh* power bank with 1.5W solar charging, 2x USB-A 3.1A outputs, waterproof (?), flashlight. 2023 model, brand new, unopened package. Paid just $2.25 (after discount on the already low price of $2.99).
Sells on Amazon for $19 (regularly $30 but who would pay that much?). Gets good reviews.

A power bank with solar panel on top, orange trims on the side. sitting on top of its white cardboard package. The side of the package has a Goodwill price label showing $2.99 price that is circled by hand in red.
@burger_jaap@mastodon.social
2024-02-28 12:00:37

Still time to register for today's webinar to learn from two experts (from EEA & ACER) on how European Member States, by collaborating strategically, can unlock flexibility and enhance energy security, while contributing to long-term climate neutrality.

Welcome! You are invited to join a webinar: The EU’s big picture: renewables, flexibility and energy security. After registering, you will receive a confirmation email about joining the webinar.
To meet climate goals, EU Member States need to massively ramp up their renewable power capacity in the coming years. This increase in variable resources such as wind and solar also increases the need for flexibility in how we use the EU electricity system, while it decreases our reliance on fossil fuels. In a joint report, the European Environment Agency and EU Agency for the Cooperation of Energy Regulators advise EU regulators to promote doubling the EU electricity system’s flexibility by…

@timbray@cosocial.ca
2024-03-22 21:19:47

I (free-)subscribe to “Bloomberg Energy Daily” which is sort of the enemy headquarters: Oil is great, rising consumption is what we need, decarbonization is the enemy, etc. Anyhow, from today: bloomberg.com/news/newsletters

One eye-popping forecast touted this week: By 2030, the surge in AI means US data centers may gobble up more power than households. Despite the boom in solar power, it’s unlikely renewables can handle that. At the very least, that means existing fossil-fuel generators stay online longer and more gas-fired output probably will be required in the US and elsewhere. “With this huge revolution around artificial intelligence, I think the energy needs are going to be enormous,” ConocoPhillips Ch…

From AI to Oil to EVs, Power Demand Dominates Houston's CERAWeek
The outlook was robust at CERAWeek, and that may have profound implications for the energy transition.

@UP8@mastodon.social
2024-04-22 20:46:56

⚡ Wireless power transmission could enable exploration of the far side of the moon
phys.org/news/2024-04-wireless

Wireless power transmission could enable exploration of the far side of the moon
How can future lunar exploration communicate from the far side of the moon despite never being inline with the Earth? This is what a recent study submitted to IEEE Transactions on Aerospace and Electronic Systems hopes to address as a pair of researchers from the Polytechnique Montréal investigated the potential for a wireless power transmission method (WPT) comprised of anywhere from one to three satellites located at Earth-moon Lagrange Point 2 (EMLP-2) and a solar-powered receiver on the fa…

@JasonPunyon@fosstodon.org
2024-02-26 21:36:59

🌞 OPERATION SOL SUCK: LET’S GO YEAR 3 🌞

Power generated by our solar panels each month for the past 2+ years.
@arXiv_physicssocph_bot@mastoxiv.page
2024-03-28 07:07:11

Global transformer overheating from geomagnetic storms
Morgan Rivers, Lukasz G. Gajewski, David Denkenberger
arxiv.org/abs/2403.18070

Global transformer overheating from geomagnetic storms
Geomagnetic storms occurring due to sustained, high-speed solar winds are known to induce currents in power distribution networks. These geomagnetically induced currents (GICs) can cause high voltage transformers (HVT) to overheat, thus resulting in a catastrophic electricity loss event (CELE). Since significant portions of infrastructures around the world rely heavily on access to electric power, it is essential to estimate the risks associated with GICs on a global scale. We assemble multiple…

@tinoeberl@mastodon.online
2024-04-21 18:20:12

"How does subscription #solar work? This Spanish company instals panels with no upfront investment
Want a ‘money printing machine’ on your roof? Leonardo #DiCaprio is backing this European solar company."

Could subscription solar power slash your energy bills?
Want a ‘money printing machine’ on your roof? Leonardo DiCaprio is backing this European solar company.

@primonatura@mstdn.social
2024-03-14 11:00:04

"April's eclipse will mean interruptions in solar power generation, which could strain electrical grids"
#Solar #SolarPower #Energy

April's eclipse will mean interruptions in solar power generation, which could strain electrical grids
During the most recent total solar eclipse visible in the U.S., on Aug. 21, 2017, the skies darkened as the moon crossed in front of the sun. It blocked out all sunlight—except for that from a golden ring visible around the moon's shape, called the corona. Not surprisingly, solar power generation across North America plummeted for several hours, from the first moment the moon began to obscure the sun to when the sun's disk was clear again.

@Sustainable2050@mastodon.energy
2024-03-06 20:00:54

World's Largest Rooftop Solar Power Plant To Be Built In Denmark - 35 MW on a massive, 300,000 m² logistics center. cleantechnica.com/2024/03/01/w…

World's Largest Rooftop Solar Power Plant To Be Built In Denmark - CleanTechnica
Danish Solar Company To Build The World's Largest Rooftop Solar Power Plant In Horsens

@arXiv_mathOC_bot@mastoxiv.page
2024-03-27 08:33:13

This arxiv.org/abs/2306.02987 has been replaced.
initial toot: mastoxiv.page/@arXiv_mat…

Frequency Regulation with Storage: On Losses and Profits
Low-carbon societies will need to store vast amounts of electricity to balance intermittent generation from wind and solar energy, for example, through frequency regulation. Here, we derive an analytical solution to the decision-making problem of storage operators who sell frequency regulation power to grid operators and trade electricity on day-ahead markets. Mathematically, we treat future frequency deviation trajectories as functional uncertainties in a receding horizon robust optimization p…

@malik@Mastodon.Social
2024-03-18 11:47:29

Kaum wohnt man in einer größer werdenden Wüste, schon ist Solar irgendwie attraktiv.
noc.social/@todayilearned/1121

Today I learned (@todayilearned@noc.social)
Attached: 1 image TIL Texas Overtakes California as Leader in Solar Power Installations https://professpost.com/texas-overtakes-california-as-leader-in-solar-power-installations/ #til #todayilearned https://www.reddit.com/r/todayilearned/comments/1bho7im/til_texas_overtakes_california_as_leader_in_solar/

@UP8@mastodon.social
2024-04-22 20:46:56

⚡ Wireless power transmission could enable exploration of the far side of the moon
phys.org/news/2024-04-wireless

Wireless power transmission could enable exploration of the far side of the moon
How can future lunar exploration communicate from the far side of the moon despite never being inline with the Earth? This is what a recent study submitted to IEEE Transactions on Aerospace and Electronic Systems hopes to address as a pair of researchers from the Polytechnique Montréal investigated the potential for a wireless power transmission method (WPT) comprised of anywhere from one to three satellites located at Earth-moon Lagrange Point 2 (EMLP-2) and a solar-powered receiver on the fa…

@BBC2MusicBot@mastodonapp.uk
2024-04-21 22:25:00

🔊 #NowPlaying on BBCRadio2's #UnwindsWithAngelaGriffin
Lorde:
🎵 Solar Power
#Lorde
open.spotify.com/track/2OS5yRd
sing2piano.bandcamp.com/track/

@primonatura@mstdn.social
2024-03-14 11:00:04

"April's eclipse will mean interruptions in solar power generation, which could strain electrical grids"
#Solar #SolarPower #Energy

April's eclipse will mean interruptions in solar power generation, which could strain electrical grids
During the most recent total solar eclipse visible in the U.S., on Aug. 21, 2017, the skies darkened as the moon crossed in front of the sun. It blocked out all sunlight—except for that from a golden ring visible around the moon's shape, called the corona. Not surprisingly, solar power generation across North America plummeted for several hours, from the first moment the moon began to obscure the sun to when the sun's disk was clear again.

@arXiv_mathOC_bot@mastoxiv.page
2024-03-27 08:33:13

This arxiv.org/abs/2306.02987 has been replaced.
initial toot: mastoxiv.page/@arXiv_mat…

Frequency Regulation with Storage: On Losses and Profits
Low-carbon societies will need to store vast amounts of electricity to balance intermittent generation from wind and solar energy, for example, through frequency regulation. Here, we derive an analytical solution to the decision-making problem of storage operators who sell frequency regulation power to grid operators and trade electricity on day-ahead markets. Mathematically, we treat future frequency deviation trajectories as functional uncertainties in a receding horizon robust optimization p…

@iragersh@mstdn.social
2024-02-09 02:44:19

Interesting story about a Fox host Bret Baier who hosts climate change deniers on his show yet has a home covered in solar panels.
Article also mentions other governmental climate change deniers who have solar panels.
Could not find a gift article.

This Fox News host gives climate skeptics airtime but went solar at home
Bret Baier has come under fire for giving airtime to climate change doubters and clean energy critics. But parts of his D.C. home are covered in solar arrays.

@servelan@newsie.social
2024-04-06 16:02:13

‘Valuable and largely overlooked:’ Interest in virtual power plants grows • Louisiana Illuminator
lailluminator.com/2024/04/06/v

‘Valuable and largely overlooked:’ Interest in virtual power plants grows • Louisiana Illuminator
Virtual power plants harness electricity stored in solar batteries to shave demand over a grid rather than calling for more generation from a traditional power plant.

@Techmeme@techhub.social
2024-04-21 01:15:50

A look at Block-funded Gridless, which operates bitcoin mines in Kenya, Malawi, and Zambia, powered through solar power and wasted energy from a geothermal site (MacKenzie Sigalos/CNBC)
cnbc.com/2024/04/20/bitcoin-mi

@memeorandum@universeodon.com
2024-02-04 14:05:33

They hoped solar panels would secure the future of their farm. Then their neighbors found out (Elizabeth Weise/USA Today)
usatoday.com/story/news/invest

They hoped solar panels would secure the future of their farm. Then their neighbors found out
The reasons for local opposition vary. The motives behind them can be murky. But they often boil down to one idea: Renewables are fine, but we don’t want them here.

@EarthOrgUK@mastodon.energy
2024-02-17 09:51:03

Low-Voltage Disconnect for 12V RE System (2007) - Learn how I squeezed juice for a low-power laptop/server from an off-grid 12V solar PV system. #storage #offGrid -

Low-Voltage Disconnect for 12V RE System (2007)
Learn how I squeezed juice for a low-power laptop/server from an off-grid 12V solar PV system. #storage #offGrid

@burger_jaap@mastodon.social
2024-04-19 06:29:39

If the grid and electricity system is the bottleneck, why not go off-grid? That's what this 🇿🇦 South African charging network wants to do - first for cars, now for trucks. But wouldn't it be better to stay connected and serve the grid? That would enable greater social benefits and battery solar income.

South Africa considers truck charging network based on solar island solutions | electrive.com
A truck charging network is to be set up in South Africa that will only supply locally generated solar power to trucks. Approval procedures for the first six locations are already underway.

@nemobis@mamot.fr
2024-03-09 10:05:54

«Over lunch, ministers discussed the state of the solar power sector in Europe. Ministers took well note of the explanations by the invited guests from Solar Power Europe and the European Solar Manufacturing Council.»
consilium.europa.eu/en/meeting

@arXiv_physicsspaceph_bot@mastoxiv.page
2024-02-23 07:07:34

Solar Power Generation Profile Estimation for Lunar Surface Solar PV Systems
Jesus Silva-Rodriguez, Xingpeng Li
arxiv.org/abs/2402.14783

Solar Power Generation Profile Estimation for Lunar Surface Solar PV Systems
As NASA prepares to carry out its Artemis lunar missions, the design and planning of robust power systems tailored to the lunar environment become necessary and urgent. Solar photovoltaic (PV) systems are among the most suitable power generators for lunar applications given the abundant solar irradiance the lunar surface receives as a result of the lack of an atmosphere. However, the vastly different environmental conditions of the moon compared to those on Earth call for special reconsideratio…

@arXiv_mathOC_bot@mastoxiv.page
2024-02-28 08:37:56

This arxiv.org/abs/2306.12644 has been replaced.
initial toot: mastoxiv.page/@arXiv_mat…

Joint Chance-constrained Game for Coordinating Renewable Microgrids with Service Delivery Risk: A Bayesian Optimization Approach
Microgrids incorporate distributed energy resources (DERs) and flexible loads, which can provide energy and reserve services for the main grid. However, due to uncertain renewable generations such as solar power, microgrids might under-deliver reserve services and breach day-ahead contracts in real-time. If multiple microgrids breach their reserve contracts simultaneously, this could lead to a severe grid contingency. This paper designs a distributionally robust joint chance-constrained (DRJCC)…

@philip@mastodon.mallegolhansen.com
2024-03-21 00:22:35

@… @… I’ve recently been toying in the back of my mind with hosting a site on a raspberry pi or similar low-power device, and hooking it up to a home made windmill or a small solar panel.
Something about the idea of a site that’s …

@REfeeds@botsin.space
2024-02-14 17:49:34

Los Angeles public-private partnership aims to advance industrial solar
#RealEstate #UrbanDevelopment #SmartCitiesDive

@burger_jaap@mastodon.social
2024-04-19 06:29:39

If the grid and electricity system is the bottleneck, why not go off-grid? That's what this 🇿🇦 South African charging network wants to do - first for cars, now for trucks. But wouldn't it be better to stay connected and serve the grid? That would enable greater social benefits and battery solar income.

South Africa considers truck charging network based on solar island solutions | electrive.com
A truck charging network is to be set up in South Africa that will only supply locally generated solar power to trucks. Approval procedures for the first six locations are already underway.

@chrisnelder@mastodon.energy
2024-02-11 18:55:25

Remember how you've seen a gazillion stories, for years, about how many coal-fired power plants China is building?
Now count how many stories you read about this.
Then ask what accounts for the difference.
China Electricity Council says that by the end of 2024, the wind and solar capacity (~40%) on its grid will exceed coal's share (37%).

@UP8@mastodon.social
2024-03-15 12:07:59

🌦️ Detroiters more likely to support local solar power development if they think it reduces energy prices for their community
theconversation.com/detroiters

Detroiters more likely to support local solar power development if they think it reduces energy prices for their community
Detroit’s plan to install solar panels in city neighborhoods may conflict with residents’ desires to see lower energy bills and more housing.

@iragersh@mstdn.social
2024-02-09 02:44:19

Interesting story about a Fox host Bret Baier who hosts climate change deniers on his show yet has a home covered in solar panels.
Article also mentions other governmental climate change deniers who have solar panels.
Could not find a gift article.

This Fox News host gives climate skeptics airtime but went solar at home
Bret Baier has come under fire for giving airtime to climate change doubters and clean energy critics. But parts of his D.C. home are covered in solar arrays.

@froqstar@social.linux.pizza
2024-04-11 09:46:56

@… is (hopefully) going to get LVGL support, which when running on a "Cheap Yellow Display" makes for a great little @… status/control panel.
Also powering the entire street from the house solar surplus right n…

A small display showing bar graphs for solar power, power usage, battery charge and effective power sent to the grid
@arXiv_astrophSR_bot@mastoxiv.page
2024-02-19 08:26:40

This arxiv.org/abs/2401.04208 has been replaced.
initial toot: mastoxiv.page/@arXiv_…

Element Abundances and the Physics of Solar Energetic Particles
Acceleration and transport of solar energetic particles (SEPs) causes their abundances, measured at constant velocity, to be enhanced or suppressed as a function of each ion's magnetic rigidity, and hence its atomic mass-to-charge ratio A/Q. Ion charges, in turn, depend upon source electron temperature. In small "impulsive" SEP events, arising from solar jets, acceleration during magnetic reconnection causes steep power-law abundance enhancements. These impulsive SEP events can have 1000-fold e…

@nelson@tech.lgbt
2024-04-08 20:42:27

Solar eclipse as seen in the power statistics of six different power grids.

@chris@mstdn.chrisalemany.ca
2024-04-05 14:35:47

Don't let any denier or fossil fuel apologist ever tell you that renewables are "unreliable" or that batteries are "unsustainable”.
You can make batteries from water, sand, and other material to store electricity as heat. This is centuries-old technology that can power the 21st century and beyond.
No more excuses.
#EndFossilFuels

These giant batteries store energy, but not as electricity | CBC News
Wind and solar generate cheap, clean power, but not always when it's needed most. So storing energy is an important part of a low-carbon grid — and storing it as heat can be cheaper, safer and more convenient than storing it in traditional batteries.

@adrianco@mastodon.social
2024-02-05 07:31:00

IEA: renewables such as solar, wind and hydro and nuclear power are set to account for almost half of the world’s electricity generation by 2026. By early 2025, renewables are expected to make up more than one-third of total electricity generation, overtaking coal – and nuclear power generation globally is forecast to reach an all-time high the same year.

@benb@osintua.eu
2024-04-12 15:57:37

Nova Group sets up new electricity generation company amid Russian attacks on infrastructure: benborges.xyz/2024/04/12/nova-

Nova Group sets up new electricity generation company amid Russian attacks on infrastructure
Nova Group has set up a company that will generate energy on a regular basis, including both solar and gas power, the group’s co-owner Volodymyr Popereshniuk announced on April 12. The newly-created N Source : kyivindependent.

@jgkoomey@mastodon.energy
2024-03-06 16:40:16

This take on solar power is correct. And the same reasoning applies to batteries, which if anything are dropping in price even faster than PVs (it’s a less mature industry). caseyhandmer.wordpress.com/202

This chart shows costs of photovoltaic panels as a function of cumulative production from 1976 to 2023, which allows the derivation of a learning rate of 44% since 2009. That means that for every doubling of cumulative production, costs of solar panels drop by 44%.

Radical Energy Abundance
Originally published at Roots of Progress, based on this thread. Everyone knows the industrial revolution occurred centuries ago and involved steam engines. That was just the warm up. We are now a …

@jrconlin@soc.jrconlin.com
2024-04-08 20:04:16

My, what a regular and well defined dip in my solar production today, on a day without clouds.
I wonder what could have been the cause?
#eclipse

A graph of my solar production (in KwH if you're curious) showing fairly steady growth during the morning but a gradual, roughly 35.5% dip starting around 10:20 to about 12:10, where it proceeds to return to normal. It's from the eclipse. The power loss is from the eclipse.
@arXiv_eessSY_bot@mastoxiv.page
2024-04-09 07:31:09

Emerging Challenges of Integrating Solar PV in the Ireland and Northern Ireland Power Systems
Taulant Kerci, Manuel Hurtado, Simon Tweed, Marta Val Escudero, Eoin Kennedy, Federico Milano
arxiv.org/abs/2404.04614

Emerging Challenges of Integrating Solar PV in the Ireland and Northern Ireland Power Systems
This paper discusses emerging operational challenges associated with the integration of solar photovoltaic (PV) in the All-Island power system (AIPS) of Ireland and Northern Ireland. These include the impact of solar PV on: (i) dispatch down levels; (ii) long-term frequency deviations; (iii) voltage magnitude variations; and (iv) operational demand variations. A case study based on actual data from the AIPS is used to analyze the above challenges. It is shown that despite its (still) relatively…

@mario@hachyderm.io
2024-03-02 16:59:28

Finally introduced #pkl (#homelab to define my

A Grafana dashboard showing two panels. The top one shows a stacked chart of the power that goes into the system (from the solar panels, from the grid or from the battery). The bottom one shows the power output (my house load, charging the battery and export to the grid)
Pkl
@servelan@newsie.social
2024-03-20 17:27:43

Climate-Science Deniers, Right-Wing Think Tanks, and Fossil Fuel Shills Are Plotting Against the Clean Energy Transition | Sierra Club
sierraclub.org/sierra/2024-1-s

Climate-Science Deniers, Right-Wing Think Tanks, and Fossil Fuel Shills Are Plotting Against the Clean Energy Transition
Inside the conspiracy to take down wind and solar power

@degrowthuk@mstdn.social
2024-04-01 22:05:59

Some hard facts for the eco-techno-optimists from the always well researched Low Tech magazine.
"Unfortunately, the planned switch to low-carbon energy sources and the electrification of heating and transport technologies will not decrease our dependency on the steel industry – on the contrary."

The high steel intensity of low carbon power sources confronts us with a so-called “catch-22”, a situation in which there seems to be no escape from a problem no matter what we do. We need much more steel if we replace thermal power plants with renewable ones. Because there is not enough steel scrap available, we can only produce that extra steel from iron ore in blast furnaces burning fossil fuels. To address climate change, we need to build low-carbon sources quickly and in great numbers. How…
The continuous growth of the steel output – the increasing steel intensity of human society – makes sustainable steel production impossible. No technology can change that because it’s not a technological problem. Like forestry can only be sustainable if the wood demand does not exceed the wood supply, steel is sustainable or not depending on the balance between (scrap) supply and (steel) demand. We may not be able to escape the Iron Age, but we have an option to escape the catch-22 that inextri…

How to Escape From the Iron Age?
We cannot lower carbon emissions if we keep producing steel with fossil fuels.

@zimpenfish@social.rjp.is
2024-03-05 10:26:26
@… It takes normal 5v 2A microUSB power. You can probably combine a solar panel and a battery to supply that.

Something like https://www.chronosys.co.uk/store/5V-Solar-Panel-Battery-and-Mount-Kit-p285186422
@arXiv_econGN_bot@mastoxiv.page
2024-02-23 06:53:21

Optimal transmission expansion minimally reduces decarbonization costs of U.S. electricity
Rangrang Zheng, Greg Schivley, Patricia Hidalgo-Gonzalez, Matthias Fripp, Michael J. Roberts
arxiv.org/abs/2402.14189

Optimal transmission expansion minimally reduces decarbonization costs of U.S. electricity
Solar and wind power are cost-competitive with fossil fuels, yet their intermittent nature presents challenges. Significant temporal and geographic differences in land, wind, and solar resources suggest that long-distance transmission could be particularly beneficial. Using a detailed, open-source model, we analyze optimal transmission expansion jointly with storage, generation, and hourly operations across the three primary interconnects in the United States. Transmission expansion offers far …

@arXiv_physicsspaceph_bot@mastoxiv.page
2024-04-23 08:59:10

This arxiv.org/abs/1912.06793 has been replaced.
link: scholar.google.com/scholar?q=a

Plasma Waves near the Electron Cyclotron Frequency in the near-Sun Solar Wind
Data from the first two orbits of the Sun by Parker Solar Probe reveal that the solar wind sunward of 50 solar radii is replete with plasma waves and instabilities. One of the most prominent plasma wave power enhancements in this region appears near the electron cyclotron frequency (f_ce). Most of this wave power is concentrated in electric field fluctuations near 0.7 f_ce and f_ce, with strong harmonics of both frequencies extending above f_ce. At least two distinct, often concurrent, wave mod…

@arXiv_csET_bot@mastoxiv.page
2024-03-18 07:01:35

Blockchain-enabled Circular Economy -- Collaborative Responsibility in Solar Panel Recycling
Mohammad Jabed Morshed Chowdhury, Naveed Ul Hassan, Wayes Tushar, Dustin Niyato, Tapan Saha, H Vincent Poor, Chau Yuen
arxiv.org/abs/2403.09937

Blockchain-enabled Circular Economy -- Collaborative Responsibility in Solar Panel Recycling
The adoption of renewable energy resources, such as solar power, is on the rise. However, the excessive installation and lack of recycling facilities pose environmental risks. This paper suggests a circular economy approach to address the issue. By implementing blockchain technology, the end-of-life (EOL) of solar panels can be tracked, and responsibilities can be assigned to relevant stakeholders. The degradation of panels can be monetized by tracking users' energy-related activities, and thes…

@primonatura@mstdn.social
2024-04-25 18:00:04

"German startup planning vertical floating PV plant"
#Germany #Solar #SolarPower #Renewables

German startup planning vertical floating PV plant
Germany-based Sinn Power plans to build a 1.8 MW floating PV system with vertically deployed solar modules. Construction is expected to start this summer.

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2024-02-13 13:02:52

Grain boundary strain localization in CdTe solar cell revealed by Scanning 3D X-ray diffraction microscopy
A. Shukla, J. Wright, A. Henningsson, H. Stieglitz, E. Colegrove, L. Besley, C. Baur, S De Angelis, M. Stuckelberger, H. F. Poulsen, J. W. Andreasen
arxiv.org/abs/2402.07155…

Grain boundary strain localization in CdTe solar cell revealed by Scanning 3D X-ray diffraction microscopy
Cadmium Telluride (CdTe) solar cell technology is a promising candidate to help boost green energy production. However, impurities and structural defects are major barriers to improving the solar power conversion efficiency. Grain boundaries often act as aggregation sites for impurities, resulting in strain localization in areas of high diffusion. In this study, we demonstrate the use of scanning 3D X-ray diffraction microscopy to non-destructively make 3D maps of the grains, their phase, orien…

@arXiv_physicsappph_bot@mastoxiv.page
2024-02-20 08:42:01

This arxiv.org/abs/2401.15267 has been replaced.
initial toot: mastoxiv.page/@arX…

Wireless Power Transfer in Space using Flexible, Lightweight, Coherent Arrays
Space solar power (SSP), envisioned for decades as a solution for continuous, stable, and dynamically dispatchable clean energy, has seen tremendous interest and a number of experimental demonstrations in the last few years. A practical implementation has been elusive to date, owing to the high launch costs associated with heavy, rigid photovoltaic (PV) and wireless power transfer (WPT) arrays. Lightweight and flexible solutions for WPT have been demonstrated terrestrially but, to date, have no…

@chris@mstdn.chrisalemany.ca
2024-03-13 00:12:20

a proxy-toot from a spacecraft that is no longer in our solar system is so freaking cool.
techhub.social/@NSFVoyager2/11

NSFVoyager2 (@NSFVoyager2@techhub.social)
Now that the magnetometer calibration rolls are done, I have enough electrical power to turn my heater back on! BAY 1 HTR ON (2024:073:001050:2TI)

@jrconlin@soc.jrconlin.com
2024-04-08 20:04:16

My, what a regular and well defined dip in my solar production today, on a day without clouds.
I wonder what could have been the cause?
#eclipse

A graph of my solar production (in KwH if you're curious) showing fairly steady growth during the morning but a gradual, roughly 35.5% dip starting around 10:20 to about 12:10, where it proceeds to return to normal. It's from the eclipse. The power loss is from the eclipse.
@arXiv_statME_bot@mastoxiv.page
2024-03-19 09:13:27

This arxiv.org/abs/2302.13133 has been replaced.
initial toot: mastoxiv.page/@arXiv_sta…

Data-driven uncertainty quantification for constrained stochastic differential equations and application to solar photovoltaic power forecast data
In this work, we extend the data-driven Itô stochastic differential equation (SDE) framework for the pathwise assessment of short-term forecast errors to account for the time-dependent upper bound that naturally constrains the observable historical data and forecast. We propose a new nonlinear and time-inhomogeneous SDE model with a Jacobi-type diffusion term for the phenomenon of interest, simultaneously driven by the forecast and the constraining upper bound. We rigorously demonstrate the ex…

@jgkoomey@mastodon.energy
2024-02-11 16:31:43

On the margin, solar wind batteries are the cheapest new source of power, and getting cheaper all the time. wandering.shop/@cstross/111913

Charlie Stross (@cstross@wandering.shop)
[Grid scale] Battery storage 30% cheaper than new gas peaker plants, Australian study finds https://www.energy-storage.news/battery-storage-30-cheaper-than-new-gas-peaker-plants-australian-study-finds/

@arXiv_physicsaoph_bot@mastoxiv.page
2024-03-04 08:43:23

This arxiv.org/abs/2304.04253 has been replaced.
initial toot: mastoxiv.page/@arXi…

A methodology for realistic estimation of the aerosol impact on the solar potential
The atmospheric aerosol loading may significantly influence the performance in solar power production. The impact can be very different both in space (even in short distance) and time (shortterm fluctuations as well as long-term trend). Aiming to ensure a high degree of generality, this study is focused on the aerosol impact on the collectable solar energy. Thus, the results are independent of solar plants characteristics. A new methodology for estimating the average daily,monthly, and yearly l…

@arXiv_astrophSR_bot@mastoxiv.page
2024-03-19 09:03:12

This arxiv.org/abs/2403.08141 has been replaced.
link: scholar.google.com/scholar?q=a

Parallel Diffusion Coefficient of Energetic Charged Particles in the Inner Heliosphere from the Turbulent Magnetic Fields Measured by Parker Solar Probe
Diffusion coefficients of energetic charged particles in turbulent magnetic fields are a fundamental aspect of diffusive transport theory but remain incompletely understood. In this work, we use quasi-linear theory to evaluate the spatial variation of the parallel diffusion coefficient $κ_\parallel$ from the measured magnetic turbulence power spectra in the inner heliosphere. We consider the magnetic field and plasma velocity measurements from Parker Solar Probe made during Orbits 5-13. The pa…

@arXiv_csNI_bot@mastoxiv.page
2024-02-12 08:33:29

This arxiv.org/abs/2311.12944 has been replaced.
initial toot: mastoxiv.page/@arXiv_csNI_…

SkyCharge: Deploying Unmanned Aerial Vehicles for Dynamic Load Optimization in Solar Small Cell 5G Networks
The power requirements posed by the fifth-generation and beyond cellular networks are an important constraint in network deployment and require energy-efficient solutions. In this work, we propose a novel user load transfer approach using airborne base stations (BS) mounted on drones for reliable and secure power redistribution across the micro-grid network comprising green small cell BSs. Depending on the user density and the availability of an aerial BS, the energy requirement of a cell with …

@thomastraynor@social.linux.pizza
2024-02-05 16:29:14

For us when we lose power:
1. Emergency generator (propane) if needed. 20 ft outside fence. (with lock)
2. Minimize use of fridge & freezer.
3. Batteries and flashlights, not candles.
4. Dried & canned goods. Stuff that only needs heating on BBQ.
5. CO & smoke detectors on all floors.
6. Check on two older neighbours. If they don't have hot meals they get an invite.
7. When we know storm is coming fill the 3 water tanks.
8. Solar ar…

@arXiv_astrophGA_bot@mastoxiv.page
2024-03-15 07:32:55

The Present-Day Mass Function of Star Clusters in the Solar Neighborhood
Xiaoying Pang, Siqi Liao, Jiadong Li, Zhiqiang Yan, Mingjie Jian, M. B. N. Kouwenhoven, Shih-Yun Tang, Yifan Wang
arxiv.org/abs/2403.08850

The Present-Day Mass Function of Star Clusters in the Solar Neighborhood
This work analyses the present-day mass function (PDMF) of 93~star clusters utilizing Gaia DR3 data, with membership determined by the StarGo machine learning algorithm. The impact of unresolved binary systems on mass estimation is rigorously assessed, adopting three mass ratio profiles for correction. The PDMF is characterized by the power-law index, $α$, derived through a robust maximum likelihood method that avoids biases associated with data binning. The value of $α$ for stars between the…

@arXiv_eessSY_bot@mastoxiv.page
2024-01-31 06:11:03

Implications of Zoning Ordinances for Rural Utility-Scale Solar Deployment and Power System Decarbonization in the Great Lakes Region
Papa Yaw Owusu-Obeng, Sarah Banas Mills, Michael T. Craig
arXiv.org/abs/2401.16626

Implications of Zoning Ordinances for Rural Utility-Scale Solar Deployment and Power System Decarbonization in the Great Lakes Region
Local zoning ordinances across the United States have the impact of restricting development of energy infrastructure, including utility-scale solar photovoltaics. While these ordinances may be developed for legitimate purposes to protect public health and safety, they could impede or increase costs of power sector decarbonization. We quantify the role of utility-scale solar zoning ordinances on power sector decarbonization across the Great Lakes region (Illinois, Indiana, Michigan, Minnesota, O…

@primonatura@mstdn.social
2024-04-09 13:00:04

"World first UK prototype could pave the way for constant energy all the time - from space"
#UK #UnitedKingdom #Energy #Solar

World first UK prototype could pave the way for constant energy all the time - from space

@arXiv_astrophSR_bot@mastoxiv.page
2024-02-15 07:06:13

Predicting the Emergence of Solar Active Regions Using Machine Learning
Spiridon Kasapis, Irina N. Kitiashvili, Alexander G. Kosovichev, John T. Stefan, Bhairavi Apte
arxiv.org/abs/2402.08890

Predicting the Emergence of Solar Active Regions Using Machine Learning
To create early warning capabilities for upcoming Space Weather disturbances, we have selected a dataset of 61 emerging active regions, which allows us to identify characteristic features in the evolution of acoustic power density to predict continuum intensity emergence. For our study, we have utilized Doppler shift and continuum intensity observations from the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO). The local tracking of 30.66 x 30.66-degree patche…

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2024-02-14 07:00:52

Toward Mass-Production of Transition Metal Dichalcogenide Solar Cells: Scalable Growth of Photovoltaic-Grade Multilayer WSe2 by Tungsten Selenization
Kathryn M. Neilson, Sarallah Hamtaei, Koosha Nassiri Nazif, Joshua M. Carr, Sepideh Rahimisheikh, Frederick U. Nitta, Guy Brammertz, Jeffrey L. Blackburn, Joke Hadermann, Krishna C. Saraswat, Obadiah G. Reid, Bart Vermang, Alwin Daus, Eric Pop

Toward Mass-Production of Transition Metal Dichalcogenide Solar Cells: Scalable Growth of Photovoltaic-Grade Multilayer WSe2 by Tungsten Selenization
Semiconducting transition metal dichalcogenides (TMDs) are promising for high-specific-power photovoltaics due to desirable band gaps, high absorption coefficients, and ideally dangling-bond-free surfaces. Despite their potential, the majority of TMD solar cells are fabricated in a non-scalable fashion using exfoliated materials due to the absence of high-quality, large-area, multilayer TMDs. Here, we present the scalable, thickness-tunable synthesis of multilayer tungsten diselenide (WSe$_{2}$…

@arXiv_statME_bot@mastoxiv.page
2024-03-19 09:13:27

This arxiv.org/abs/2302.13133 has been replaced.
initial toot: mastoxiv.page/@arXiv_sta…

Data-driven uncertainty quantification for constrained stochastic differential equations and application to solar photovoltaic power forecast data
In this work, we extend the data-driven Itô stochastic differential equation (SDE) framework for the pathwise assessment of short-term forecast errors to account for the time-dependent upper bound that naturally constrains the observable historical data and forecast. We propose a new nonlinear and time-inhomogeneous SDE model with a Jacobi-type diffusion term for the phenomenon of interest, simultaneously driven by the forecast and the constraining upper bound. We rigorously demonstrate the ex…

@primonatura@mstdn.social
2024-04-09 13:00:04

"World first UK prototype could pave the way for constant energy all the time - from space"
#UK #UnitedKingdom #Energy #Solar

World first UK prototype could pave the way for constant energy all the time - from space

@arXiv_physicsoptics_bot@mastoxiv.page
2024-03-08 07:07:08

Investigation of low band gap silicon alloy thin film solar cell for improving short and long wavelength response
S. M. Iftiquar, J. Yi
arxiv.org/abs/2403.04637

Investigation of low band gap silicon alloy thin film solar cell for improving short and long wavelength response
Numerical simulation of a solar cell can provide various information that can be useful to maximize its power conversion efficiency (PCE). In that respect we carried out a set of numerical simulation using AFORS-HET simulation program. Separately, in order to get a better understanding, the optical absorption in individual layers devices were analyzed. Current-voltage characteristic curve of a reference cell (Cell-A) was used as the starting device. The PCE of the reference device was $8.85\%$ …

@arXiv_condmatmeshall_bot@mastoxiv.page
2024-02-13 13:12:59

High quantum yields generated by a multi-band quantum dot photocell
Shun-Cai Zhao, Qi-Xuan Wu
arxiv.org/abs/2402.06681

High quantum yields generated by a multi-band quantum dot photocell
We perform the quantum yields in a multi-band quantum dot (QD) photocell via doping an intermediate band (IB) between the conduction band (CB) and valence band (VB). Under two different sub-band gap layouts, the output power has a prominent enhancement than the single-band gap photocell and the achieved peak photo-to-charge efficiency reaches to 74.9% as compared to the limit efficiency of 63.2% via the IB approach in the theoretical solar cell prototype. The achieved quantum yields reveal the …

@arXiv_astrophGA_bot@mastoxiv.page
2024-03-15 07:32:55

The Present-Day Mass Function of Star Clusters in the Solar Neighborhood
Xiaoying Pang, Siqi Liao, Jiadong Li, Zhiqiang Yan, Mingjie Jian, M. B. N. Kouwenhoven, Shih-Yun Tang, Yifan Wang
arxiv.org/abs/2403.08850

The Present-Day Mass Function of Star Clusters in the Solar Neighborhood
This work analyses the present-day mass function (PDMF) of 93~star clusters utilizing Gaia DR3 data, with membership determined by the StarGo machine learning algorithm. The impact of unresolved binary systems on mass estimation is rigorously assessed, adopting three mass ratio profiles for correction. The PDMF is characterized by the power-law index, $α$, derived through a robust maximum likelihood method that avoids biases associated with data binning. The value of $α$ for stars between the…

@burger_jaap@mastodon.social
2024-04-08 14:30:29

interesting to see more and more 'digital' energy providers, starting with product A (in this case solar panels), expanding to B (dynamic power tariffs) and then taking it a step further by also optimising for imbalance prices (and in future local grid congestion).
zonneplan.nl/powerplay/zon…

Strategisch zonnestroom terugleveren: verhoog je rendement
Zonneplan Powerplay: AI-gedreven aansturing van jouw zonnepanelen waarbij je niet alleen verdient, maar ook het net stabiliseert en de planeet helpt. Allemaal automatisch.

@arXiv_astrophSR_bot@mastoxiv.page
2024-04-05 07:00:15

The Independence of Magnetic Turbulent Power Spectra to the Presence of Switchbacks in the Inner Heliosphere
Peter Tatum, David Malaspina, Alexandros Chasapis, Benjamin Short
arxiv.org/abs/2404.03075

The Independence of Magnetic Turbulent Power Spectra to the Presence of Switchbacks in the Inner Heliosphere
An outstanding gap in our knowledge of the solar wind is the relationship between switchbacks and solar wind turbulence. Switchbacks are large fluctuations, even reversals, of the background magnetic field embedded in the solar wind flow. It has been proposed that switchbacks may form as a product of turbulence and decay via coupling with the turbulent cascade. In this work, we examine how properties of solar wind magnetic field turbulence vary in the presence or absence of switchbacks. Specifi…

@arXiv_astrophCO_bot@mastoxiv.page
2024-04-05 07:27:31

Primordial Black Hole Interpretation in Subsolar Mass Gravitational Wave Candidate SSM200308
Chen Yuan, Qing-Guo Huang
arxiv.org/abs/2404.03328

Primordial Black Hole Interpretation in Subsolar Mass Gravitational Wave Candidate SSM200308
In the recent second part of the third observation run by the LIGO-Virgo-KAGRA collaboration, a candidate with sub-solar mass components was reported, which we labelled as SSM200308. This study investigates the premise that primordial black holes (PBHs), arising from Gaussian perturbation collapses, could explain SSM200308. Through Bayesian analysis, we obtain the primordial curvature power spectrum that leads to the merger rate of PBHs aligning with observational data as long as they constitut…

@primonatura@mstdn.social
2024-03-14 16:00:10

"Zonal pricing: UK Government pledges cheaper electricity for those living near renewables projects"
#UK #UnitedKingdom #Renewables

Zonal pricing: UK Government pledges cheaper electricity for those living near renewables projects
The developers of wind farms, solar arrays and gas power plants are set to be incentivised to site them nearer to Britain’s towns and cities in a bid to better match energy supply and demand.

@lilmikesf@c.im
2024-02-01 22:26:06

How Bait & Switch #Scams Have Doomed America's #RoofTopSolar industry Similar To Greedy A Hole Led Junk #SubPrime #Loan Asset Crisis That D…

The Rooftop Solar Industry Could Be on the Verge of Collapse
Complicated financial products helped the U.S. rooftop-solar-power industry grow, but now put it at risk of becoming the biggest financial scam since the Great Recession.

@sascha_wolfer@fediscience.org
2024-04-12 09:52:44

I have programmed a small #rstats script combining the web-based #API of our SolarEdge #photovoltaic system with the local API of our go-e #wallbox.
If the car charges, the script looks up the production of the PV system and increases/decreases the charging current for the car accordingly. This makes the most of the collected #solar power. What now runs on an old #Raspberry Pi would’ve easily cost us 500 EUR installation costs – and I have full control over everything! 🤓🤩

@BBC1MusicBot@mastodonapp.uk
2024-04-03 02:16:51

🔊 #NowPlaying on BBCRadio1's #Radio1Relax
Lorde:
🎵 Solar Power
#BBCR1 #Lorde
open.spotify.com/track/7s2kWab
sing2piano.bandcamp.com/track/

@primonatura@mstdn.social
2024-03-14 16:00:10

"Zonal pricing: UK Government pledges cheaper electricity for those living near renewables projects"
#UK #UnitedKingdom #Renewables

Zonal pricing: UK Government pledges cheaper electricity for those living near renewables projects
The developers of wind farms, solar arrays and gas power plants are set to be incentivised to site them nearer to Britain’s towns and cities in a bid to better match energy supply and demand.

@arXiv_astrophSR_bot@mastoxiv.page
2024-03-08 07:00:21

Low-amplitude solar-like oscillations in the K5 V star $\varepsilon$ Indi A
Mia S. Lundkvist, Hans Kjeldsen, Timothy R. Bedding, Mark J. McCaughrean, R. Paul Butler, Ditte Slumstrup, Tiago L. Campante, Conny Aerts, Torben Arentoft, Hans Bruntt, C\'atia V. Cardoso, Fabien Carrier, Laird M. Close, Jo\~ao Gomes da Silva, Thomas Kallinger, Robert R. King, Yaguang Li, Simon J. Murphy, Jakob L. R{\o}rsted, Dennis Stello

Low-amplitude solar-like oscillations in the K5 V star $\varepsilon$ Indi A
We have detected solar-like oscillations in the mid K-dwarf $\varepsilon$ Indi A, making it the coolest dwarf to have measured oscillations. The star is noteworthy for harboring a pair of brown dwarf companions and a Jupiter-type planet. We observed $\varepsilon$ Indi A during two radial velocity campaigns, using the high-resolution spectrographs HARPS (2011) and UVES (2021). Weighting the time series, we computed the power spectra and established the detection of solar-like oscillations with a…

@arXiv_astrophGA_bot@mastoxiv.page
2024-03-13 08:43:22

This arxiv.org/abs/2403.04122 has been replaced.
initial toot: mastoxiv.page/@arXiv_…

Sliding into DM: Determining the local dark matter density and speed distribution using only the local circular speed of the Galaxy
We use FIRE-2 zoom simulations of Milky Way size disk galaxies to derive easy-to-use relationships between the observed circular speed of the Galaxy at the Solar location, $v_\mathrm{c}$, and dark matter properties of relevance for direct detection experiments: the dark matter density, the dark matter velocity dispersion, and the speed distribution of dark matter particles near the Solar location. We find that both the local dark matter density and 3D velocity dispersion follow tight power laws…

@primonatura@mstdn.social
2024-04-15 19:00:02

"Juniper Green Energy switches on 105 MW solar plant in India"
#India #Renewables #Solar #SolarPower

Juniper Green Energy switches on 105 MW solar plant in India
Juniper Green Energy has commissioned a 105 MW solar project in India, almost nine months ahead of its scheduled date of completion. The project has a 25-year power purchase agreement (PPA) with Maharashtra State Electricity Distribution (MSEDCL).

@arXiv_physicsoptics_bot@mastoxiv.page
2024-03-11 08:46:13

This arxiv.org/abs/2403.04637 has been replaced.
initial toot: mastoxiv.page/@ar…

Investigation of low band gap silicon alloy thin film solar cell for improving short and long wavelength response
Numerical simulation of a solar cell can provide various information that can be useful to maximize its power conversion efficiency (PCE). In that respect we carried out a set of numerical simulation using AFORS-HET simulation program. Separately, in order to get a better understanding, the optical absorption in individual layers devices were analyzed. Current-voltage characteristic curve of a reference cell (Cell-A) was used as the starting device. The PCE of the reference device was $8.85\%$ …

@arXiv_mathOC_bot@mastoxiv.page
2024-02-15 08:38:33

This arxiv.org/abs/2306.12644 has been replaced.
initial toot: mastoxiv.page/@arXiv_mat…

Joint Chance-constrained Game for Coordinating Renewable Microgrids with Service Delivery Risk: A Bayesian Optimization Approach
Microgrids incorporate distributed energy resources (DERs) and flexible loads, which can provide energy and reserve services for the main grid. However, due to uncertain renewable generations such as solar power, microgrids might under-deliver reserve services and breach day-ahead contracts in real-time. If multiple microgrids breach their reserve contracts simultaneously, this could lead to a severe grid contingency. This paper designs a distributionally robust joint chance-constrained (DRJCC)…

@arXiv_physicsappph_bot@mastoxiv.page
2024-01-30 06:18:37

Wireless Power Transfer in Space using Flexible, Lightweight, Coherent Arrays
Alex Ayling, Austin Fikes, Oren S. Mizrahi, Ailec Wu, Raha Riazati, Jesse Brunet, Behrooz Abiri, Florian Bohn, Matan Gal-Katziri, Mohammed Reza M. Hashemi, Sharmila Padmanabhan, Damon Russell, Ali Hajimiri
arXiv.org/abs/2401.15267

Wireless Power Transfer in Space using Flexible, Lightweight, Coherent Arrays
Space solar power (SSP), envisioned for decades as a solution for continuous, stable, and dynamically dispatchable clean energy, has seen tremendous interest and a number of experimental demonstrations in the last few years. A practical implementation has been elusive to date, owing to the high launch costs associated with heavy, rigid photovoltaic (PV) and wireless power transfer (WPT) arrays. Lightweight and flexible solutions for WPT have been demonstrated terrestrially but, to date, have no…

@arXiv_astrophCO_bot@mastoxiv.page
2024-04-05 07:27:31

Primordial Black Hole Interpretation in Subsolar Mass Gravitational Wave Candidate SSM200308
Chen Yuan, Qing-Guo Huang
arxiv.org/abs/2404.03328

Primordial Black Hole Interpretation in Subsolar Mass Gravitational Wave Candidate SSM200308
In the recent second part of the third observation run by the LIGO-Virgo-KAGRA collaboration, a candidate with sub-solar mass components was reported, which we labelled as SSM200308. This study investigates the premise that primordial black holes (PBHs), arising from Gaussian perturbation collapses, could explain SSM200308. Through Bayesian analysis, we obtain the primordial curvature power spectrum that leads to the merger rate of PBHs aligning with observational data as long as they constitut…

@arXiv_astrophSR_bot@mastoxiv.page
2024-03-12 08:49:13

This arxiv.org/abs/2401.01604 has been replaced.
initial toot: mastoxiv.page/@arXiv_…

Solar Energetic Particle Charge States and Abundances with Nonthermal Electrons
An important aspect of solar energetic particle (SEP) events is their source populations. Elemental abundance enhancements of impulsive SEP events, originating in presumed coronal reconnection episodes, can be fitted to steep power laws of A/Q, where A and Q are the atomic mass and ionic charge. Since thermal electron energies are enhanced and nonthermal electron distributions arise in the reconnection process, we might expect that ionic charge states Q would be increased through ionization int…

@primonatura@mstdn.social
2024-04-15 19:00:02

"Juniper Green Energy switches on 105 MW solar plant in India"
#India #Renewables #Solar #SolarPower

Juniper Green Energy switches on 105 MW solar plant in India
Juniper Green Energy has commissioned a 105 MW solar project in India, almost nine months ahead of its scheduled date of completion. The project has a 25-year power purchase agreement (PPA) with Maharashtra State Electricity Distribution (MSEDCL).

@arXiv_eessSY_bot@mastoxiv.page
2024-01-31 06:11:01

Towards Robust and Scalable Dispatch Modeling of Long-Duration Energy Storage
Omar J. Guerra, Sourabh Dalvi, Amogh A. Thatte, Brady Cowiestoll, Jennie Jorgenson, Bri-Mathias Hodge
arXiv.org/abs/2401.16605

Towards Robust and Scalable Dispatch Modeling of Long-Duration Energy Storage
Existing modeling approaches for long-duration energy storage (LDES) are often based either on an oversimplified representation of power system operations or limited representation of storage technologies, e.g., evaluation of only a single application. This manuscript presents an overview of the challenges of modeling LDES technologies, as well as a discussion regarding the capabilities and limitations of existing approaches. We used two test power systems with high shares of both solar photovo…

@sascha_wolfer@fediscience.org
2024-04-12 09:52:44

I have programmed a small #rstats script combining the web-based #API of our SolarEdge #photovoltaic system with the local API of our go-e #wallbox.
If the car charges, the script looks up the production of the PV system and increases/decreases the charging current for the car accordingly. This makes the most of the collected #solar power. What now runs on an old #Raspberry Pi would’ve easily cost us 500 EUR installation costs – and I have full control over everything! 🤓🤩

@primonatura@mstdn.social
2024-04-12 18:00:04

"Solar and wind power have surged wildly in the US over the last decade"
#US #USA #America #Solar

Solar and wind power have surged wildly in the US over the last decade
Nearly a quarter of the nation's grid now runs on renewables, but more needs to be done to meet climate goals, according to recent report.

@primonatura@mstdn.social
2024-04-12 18:00:04

"Solar and wind power have surged wildly in the US over the last decade"
#US #USA #America #Solar

Solar and wind power have surged wildly in the US over the last decade
Nearly a quarter of the nation's grid now runs on renewables, but more needs to be done to meet climate goals, according to recent report.

@arXiv_astrophSR_bot@mastoxiv.page
2024-03-08 08:40:07

This arxiv.org/abs/2303.01321 has been replaced.
initial toot: mastoxiv.page/@arXiv_…

Statistical analysis of the total magnetic flux decay rate in solar active regions
We used line-of-sight magnetograms acquired by the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory to derive the decay rate of total unsigned magnetic flux for 910 ephemeral and active regions (ARs) observed between 2010 and 2017. We found that: i) most of the ARs obey the power law dependence between the peak magnetic flux and the magnetic flux decay rate, $DR$, so that $DR\sim Φ^{0.70}$; ii) larger ARs lose smaller fraction of their magnetic flux per unit of time tha…

@arXiv_astrophGA_bot@mastoxiv.page
2024-03-08 07:25:26

Sliding into DM: Determining the local dark matter density and speed distribution using only the local circular speed of the Galaxy
Patrick G. Staudt, James S. Bullock, Michael Boylan-Kolchin, Andrew Wetzel, Xiaowei Ou
arxiv.org/abs/2403.04122

Sliding into DM: Determining the local dark matter density and speed distribution using only the local circular speed of the Galaxy
We use FIRE-2 zoom simulations of Milky Way size disk galaxies to derive easy-to-use relationships between the observed circular speed of the Galaxy at the Solar location, $v_\mathrm{c}$, and dark matter properties of relevance for direct detection experiments: the dark matter density, the dark matter velocity dispersion, and the speed distribution of dark matter particles near the Solar location. We find that both the local dark matter density and 3D velocity dispersion follow tight power laws…

@arXiv_physicsoptics_bot@mastoxiv.page
2024-04-16 07:06:59

Mid-infrared 2D nonredundant optical phased array of mirror emitters in an InGaAs/InP platform
Jason Midkiff (Omega Optics, Inc., Austin, TX, USA), Po-Yu Hsiao (The University of Texas at Austin, Austin, TX, USA), Patrick T. Camp (The University of Texas at Austin, Austin, TX, USA), Ray T. Chen (Omega Optics, Inc., Austin, TX, USA, The University of Texas at Austin, Austin, TX, USA)

Mid-infrared 2D nonredundant optical phased array of mirror emitters in an InGaAs/InP platform
The extension of photonic technologies such as lidar and free-space optical communications from the traditional visible and near-infrared wavelengths to longer wavelengths can improve performance in adverse environments such as haze, fog, smoke, or strong solar background. Non-mechanical beam steerers will be a critical component of the low size, weight, and power modules needed for the portable or unmanned systems deployed in these environments. In this work, we demonstrate the first 2D optica…

@primonatura@mstdn.social
2024-03-13 20:00:02

"Solar Accounted for More Than Half of New U.S. Power Last Year"
#US #USA #America #Renewables

@primonatura@mstdn.social
2024-04-04 19:00:13

"California’s new rules allow solar and batteries to help out the grid"
#California #Solar #SolarPOwer #Renewables

California’s new rules allow solar and batteries to help out the grid
Utilities tend to treat solar and batteries as threats to their power grids. California’s policy will now tap their flexible power to benefit the grid instead.