Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, marine energies, hydropower and hydropower, biomass, biogas, deep geothermal energy ...

Oil, gas, coal, nuclear, PWR, EPR, hot fusion, ITER, thermal, cogeneration, trigeneration. Peakoil, depletion, economics, geopolitical technologies and strategies.

solar photovoltaic and solar forum PV electricity generation from solar energy by direct radiation.

Solar thermal energy in all its forms: solar heating, hot water, choosing a solar collector, solar concentration, ovens and solar cookers, solar energy storage by heat buffer, solar pool, air conditioning and solar cold ..
Aid, counseling, fixtures and examples of achievements ...

crude vegetable oil, diester, bio-ethanol or other biofuels, or fuel of vegetable origin ...

Warming and Climate Change: causes, consequences, analysis ... Debate on CO2 and other greenhouse gas.

Innovations, ideas or patent to reduce fossil energy consumption, for example, new wind, new solar panels, geothermal system evolved ...