Blackouts are complete losses of power that can affect a wide area. They are typically caused by natural disasters, such as hurricanes or earthquakes, or by human error, such as a power plant failure. Blackouts can last for hours or even days, and they can have a devastating impact on businesses and communities.
Brownouts are temporary drops in voltage that can cause lights to dim, appliances to slow down, and computers to crash. Brownouts are typically caused by high demand for electricity, such as during a heat wave, or by problems with the power grid. Brownouts can last for a few minutes or hours, and they are usually not as disruptive as blackouts.
In the United States, brownouts are more common than blackouts. This is because the United States has a large and complex power grid that is vulnerable to disruptions. In addition, the United States has a growing population and economy, which is putting increasing demands on the power grid.