U.S. Geothermal Power at Present

Part 5 of Geothermal Energy Under Our Feet. Today’s U.S. geothermal industry is a $2-billion per-year enterprise involving over 2800 MW of electricity generation capacity, about 620 MW of thermal energy capacity in direct-use applications such as indoor heating, greenhouses, food drying, and aquaculture, and over 7,300 MW of thermal energy capacity from geothermal heat […]


2010 Clean Energy Vehicle Buyer’s Guide

Introduction Those who depend on foreign oil for transportation fuel have seen prices roller-coaster between $5/gallon and $1.75/gallon and back up again. The economic impact of our dependence on foreign oil could not be clearer. To get off the roller-coaster, smart consumers are looking at the expanding availability of advanced, efficient vehicles, including hybrids and […]


Ethanol: Separating Fact from Fiction

When energy prices soared during the 1970s, most Americans recognized the inherent danger in the U.S.’s dependence on imported petroleum. Despite current complacency, the potential economic and national security threats have not diminished. In 1995 the United States exceeded the level of imported petroleum it reached during the 1970s. Today, in fact, more than half […]


Advantages of Flex Fuel (Ethanol/e85) Vehicles. Find Out.

If you drive a FlexFuel vehicle, you are one of the millions of Americans who are already driving cars that can run on something other than gasoline. More than 2 million of today’s private and corporate-owned vehicles are flexible-fuel vehicles (FFVs), which can run on ethanol, gasoline, or a mixture of the two. You may […]


The Clean Energy Choice In Transportation

Part 15 of Buying and Using Renewable Energy at Home. One of the more challenging ways to use clean energy is in fueling our cars. Advanced transportation technologies—including fuel cells, electric motors, advanced engines, improved materials, and other technologies—aim to reduce pollution and minimize petroleum fuel use in cars, trucks, buses, fleet vehicles, and public […]


Today’s Alternative Fuel Choices: Hydrogen

Part 9 of Advanced Technology and Alternative Fuel Vehicles. Hydrogen is a simple, abundant element found in organic matter, notably in the hydrocarbons that make up many of our fuels, such as gasoline, natural gas, methanol, and propane. As an energy carrier like electricity (not an energy source), it must be manufactured. Hydrogen can be […]