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.
Fossil Fuels. Fossil Fuels. In 2015, fossil fuels provided about 81% of the energy used in the United States, including the energy to generate most of our electricity. Fossil fuels supply the affordable energy we need for many of the functions essential to our society.