WolframAlpha measures an average US household's yearly consumption at 12,000 KWh, or 32.8 KWh per day. The upper bound in the parent comment with the 50% fudge factor, 375 MWh per day, would power (375 MWh/32.8 KWh) = 11,430 households day-for-day, or 22,860 households day-for-day without the fudge factor.
WolframAlpha measures an average US household's yearly consumption at 12,000 KWh, or 32.8 KWh per day. The upper bound in the parent comment with the 50% fudge factor, 375 MWh per day, would power (375 MWh/32.8 KWh) = 11,430 households day-for-day, or 22,860 households day-for-day without the fudge factor.