Tootfinder

"An increasing number of homes in the Netherlands are heated without the use of natural gas. In 2024, 11.2 percent of homes were fully gas-free, up from 8.7 percent in 2022. These homes are usually heated using a heat pump or are connected to a collective district heating system."
https://www.cbs.…

Ever more gas-free homes
An increasing number of homes in the Netherlands are heated without the use of natural gas. In 2024, 11.2 percent of homes were fully gas-free, up from 8.7 percent in 2022. These homes are usually heated using a heat pump or are connected to a collective district heating system. This means they do not require a gas-fired boiler. Statistics Netherlands (CBS) reports this on the basis of newly released figures.

Flooded disused coalmines could be a significant source of energy and provide cheap heat to thousands of homes, a new report argues.
Mine water geothermal heat (MWGH) systems use the water in flooded coalmines,
which is warmed by natural processes,
to supply low-carbon heat.
Heat exchangers and pumps recover the heat,
which is distributed via district heating networks to homes and buildings,
providing low-cost, long-term, stable energy.