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.
Sources of Energy. We use many different energy sources to do work. Energy sources are classified as renewable or nonrenewable. Renewable and nonrenewable energy can be converted into secondary energy sources such as electricity and hydrogen. In the United States, most of our energy comes from nonrenewable energy sources.