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.
Presidential Powers: An Introduction The issue: What powers does the Constitution give to the President? Introduction The delegates to the Constitutional Convention of 1787 gave surprisingly little attention to the executive branch of government.