A: 'GUST' is an acronym that stands for a series of four recent tax laws that also made changes to how retirement plans are operated. âEGTRRAâ is the acronym for the tax law enacted in 2001.
Of the renewable energy sources used to generate electricity in the United States, hydropower makes the biggest contribution. Water used to spin a turbine is a cheap, non-polluting domestic source of energy. But hydropower brings with it other environmental impacts to consider. More about hydroelectric.
Exhaustible energy sources include all kinds of nonrenewable types of energy generation, such as coal, oil, nuclear or natural gas. As of June 2011, most of the energy used in the U.S. is produced from exhaustible sources, although all but five states in the U.S. have implemented programs that mandate a certain percentage of energy production come from inexhaustible sources at defined points in the future. Inexhaustible sources include wind, solar and water.