The total generation pie chart here also shows what kind of generation currently makes up the 165,000 megawatts available in the PJM region. The chart shows installed capacity values.
A key rule of thumb to keep in mind when considering how much a megawatt of power is one megawatt of power is about the amount needed to meet the demands of 800 to 1,000 homes.
PJM Capacity by Fuel Source
Renewable Energy in PJM