Japan's government began restricting electricity consumption Friday in the Tokyo and Tohoku regions, more than three months after an earthquake and tsunami sent nuclear reactors into meltdown at the Fukushima Daiichi plant.

Large companies, universities and department stores that violate the restrictions to cut energy usage by 15 percent will face fines of up to $1,400. Small businesses and private homes have been asked to voluntarily cut their energy consumption.

The restrictions will run through the peak summer months, through September.