EGU
Electric utility steam generating unit (EGU) means a fossil fuel-fired combustion unit of more than 25 megawatts electric (MWe) that serves a generator that produces electricity for sale. A fossil fuel-fired unit that cogenerates steam and electricity and supplies more than one-third of its potential electric output capacity and more than 25 MWe output to any utility power distribution system for sale is considered an electric utility steam generating unit.
Source
40 CFR § 63.10042
Scoping language
Terms used in this subpart are defined in the Clean Air Act (CAA), in 63.2 (the General Provisions), and in this section as follows: