Stay-at-home orders led to less commercial and industrial electricity use in April

Source: U.S. Energy Information Administration, June 30, 2020

According to data from the U.S. Energy Information Administration’s (EIA) latest Electric Power Monthly, April residential electricity sales in the United States have increased 8% compared with April 2019. At the same time, the commercial and industrial sectors saw decreases of 11% and 9%, respectively. U.S. residential electricity sales have never been this high in April. Commercial electricity sales in April were the lowest April value since April 2003, and industrial sales were the lowest since April 1987.

Across all sectors, April U.S. electricity sales declined 4% compared with last April, largely as a result of measures to reduce the spread of COVID-19. Starting with California on March 19, states began to issue stay-at-home orders in response to the pandemic. By mid-April, most states were under stay-at-home orders. As the orders took effect, businesses, schools, and industrial facilities closed, and office workers transitioned to working from home.

Electricity use in the United States is typically lowest in the spring and fall months, when demand for air conditioning and heating are often at their lowest levels. In each of the past 10 years, either April or October was the month with the lowest electricity demand, which reflects both sales from the grid and the electricity produced by net-metered systems, such as rooftop solar panels. Electricity demand generally increases as temperatures either become much colder or much warmer than about 55 degrees to 65 degrees Fahrenheit.

The residential sector is relatively sensitive to temperature changes. Based on the previous five Aprils, EIA estimates that the U.S. residential sector would have used about 3.1 million megawatthours (MWh) per day in April 2020. Actual residential electricity demand in April 2020 was 3.3 million MWh/day, or about 6% higher than the typical April value.

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