Coal use for power generation fell even more, by at least 4 %, as power plant efficiency improved and gas and biomass displaced coal in thermal power generation. (carbonbrief.org)
That mix would include smaller hydro projects and other renewables, such as wind, solar and waste, but also thermal power generation from natural gas, fuel oil and coal. (scientificamerican.com)
For solar thermal power generation, the technology can provide steam temperatures of up to 620 degrees Celsius for highly efficient power plant processes. (solarpaces.org)