Geothermal Electricity
Twenty-four countries generated a total of 56,786 gigawatt-hours (GWh) (204 PJ) of electricity from geothermal power in 2005, accounting for 0.3% of worldwide electricity consumption. Output is growing by 3% annually, because…
Environmental Impact of Geothermal Power Plant
Fluids drawn from the deep earth carry a mixture of gases, notably carbon dioxide (CO2), hydrogen sulfide (H2S), methane (CH4) and ammonia (NH3). These pollutants contribute to global warming, acid…
What is Renewable Heating and Cooling?
Renewable heating and cooling is the technology that uses one of the free or nearly-free renewable energy resources, such as geothermal, solar or biomass, for the generation of heating and/or cooling…
Earth Coupled
Another term used to describe homes and buildings using geothermal heat pumps is that they are "Earth coupled" in that they are using the Earth as a heat source (in…
What is Geothermal Heating and Cooling?
Geothermal heating and cooling is the technology that uses the free and available heat from the earth to provide heating and/or cooling for a home, business, industry or industrial process. What…
The Future of Geothermal Electricity
Steam and hot water reservoirs are just a small part of the geothermal resource. The Earth's magma and hot dry rock will provide cheap, clean, and almost unlimited energy as soon…
Geothermal Power Plant Technology
What are Geothermal Power Plants? There are three geothermal power plant technologiesbeing used to convert hydrothermal fluids to electricity. The conversion technologies are dry steam, flash, and binary cycle. The type…
Heat from Earth
Earth's temperature increases gradually. with depth, at the center reaching more than 4,200C (7600F). Some of this heat is a relic of the globe's fiery formation about 4.5 billion years…
Pulverized Coal Power Plant
For use in thermal power plants, coal is ground into dust using a device called a powdered coal mill. The resulting product, calledpowdered coal or pulverized coal, is then generally used in a fossil…
List of Coal Power Plants
The following page lists all coal-fired power plants that are larger than 1,000 MW in current net capacity, which are currently operational or under construction. Those power plants that are smaller than…
