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.
The most common energy sources on the planet in modern times are those which use fossil fuels to generate their energy. More than 85% of all primary energy on earth comes from fossil fuels, and although this percentage is being reduced slowly, total energy consumption continues to increase.