Setsuden in 2011

Setsuden (Japanese: 節電, lit. “saving electricity” in English) is a national movement in Japan to encourage the Japanese public to conserve electricity during the 2011 summer months, and adopt an overall energy sustainable lifestyle.

The movement started in July 2011 to prevent rolling blackouts during the summer due to electricity shortages in eastern Japan.

Specifically, setsuden was largely in reaction to the aftermath of March 2011 when the Fukushima nuclear plant faced a meltdown after it was damaged by the Tōhoku earthquake and tsunami. Following the shutdown of the Fukushima power plant, other nuclear plants were also decommissioned indefinitely for maintenance checks, further reducing the nation's nuclear power supply.^[1] In response to this energy shortage, media campaigns promoted Japanese households and businesses to cut back on electrical usage.

Japan faced no power outages for the duration of the summer campaign, which was a relative success. 

While the movement started as an unofficial, on July 1, 2011, the government passed energy-restriction policies for large companies and target reductions for households and smaller businesses.^[2] Although these restrictions were repealed in September 2011, the movement has been successful in preventing blackouts for its span.