Where temperatures below about 95 °C (200 °F) are sufficient, as for space heating, flat-plate collectors of the nonconcentrating type are generally used. Because of the relatively high heat losses through the glazing, flat plate collectors will not reach temperatures much above 200 °C (400 °F) even when the heat transfer fluid is stagnant. Such temperatures are too low for
[pdf] is a heavy producer of because of . Over 99% of the electricity production in mainland Norway is from 31 GW hydropower plants (86 TWh reservoir capacity, storing water from summer to winter). The average hydropower is 133 TWh/year (135.3 TWh in 2007). There is also a large potential in , and , as well as p.
[pdf] possesses a high potential, specifically in the and . Solar power is a growing part of , with 19 (GW) of generating 6% of . is also important. Although similarly sunny, by 2021 Turkey had installed far less .
The fuel-only cost of fossil gas-fired power in early 2022 was 128 USD/MWh, which was more than double that of the of new PV and new onshore wind. Renewable energy is competitive with domestic coal. However in 2022 wind and solar remained more expensive than measures, which were estimated at 14 USD/MWh.
[pdf] 
