One measure of the efficiency of a generator or power plant that converts a fuel into heat and into electricity is the heat rate. The heat rate is the amount of energy used by an electrical generator or power plant to generate one kilowatthour (kWh) of electricity. The U.S. Energy Information Administration (EIA) expresses heat rates in British thermal units (Btu) per net kWh generated.
The Constitution specifically grants Congress its most important power â the authority to make laws. A bill, or proposed law, only becomes a law after both the House of Representatives and the Senate have approved it in the same form.
The United States Congress is made up of the House of Representatives and the Senate. Learn more about the powers of the Legislative Branch of the federal government of the United States.Established by Article I of the Constitution, the Legislative Branch consists of the House of Representatives and the Senate, which together form the United States Congress.owers of Congress. Congress, as one of the three coequal branches of government, is ascribed significant powers by the Constitution. All legislative power in the government is vested in Congress, meaning that it is the only part of the government that can make new laws or change existing laws.