出典:Wiktionary
出典:『Wiktionary』 (2025/02/02 00:43 UTC 版)
rolling blackout (plural rolling blackouts)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/22 07:46 UTC 版)
A rolling blackout, also referred to as load shedding, is an intentionally-engineered electrical power outage where electricity delivery is stopped for non-overlapping periods of time over geographical regions. Rolling blackouts are a last-resort measure used by an electric utility company in order to avoid a total blackout of the power system. They are usually in response to a situation where the demand for electricity exceeds the power supply capability of the network. Rolling blackouts may be localised to a specific part of the electricity network or may be more widespread and affect entire countries and continents. Rolling blackouts generally result from two causes: insufficient generation capacity or inadequate transmission infrastructure to deliver sufficient power to the area where it is needed.