The Philadelphia heat wave is affecting 58 million Midwestern . The heat wave that 's bearing down on more than 150 million Americans in the Midwestern and A mid-Atlantic power grid predicted a peak demand of 150,000 megawatts . The demand has surpassed under 149,000 megawatts .
The Philadelphia heat wave is affecting 58 million Midwestern . A mid-Atlantic power grid predicted a peak demand of 150,000 megawatts . The demand has surpassed under 149,000 megawatts .