National Geographic reports:
n June, Ofgem released a capacity assessment warning that “risks to electricity security of supply over the next six winters have increased since our last report in October 2012.” The report warned that Britain’s ability to provide spare electric power capacity could plunge to between 2 to 5 percent, about half what it is now.
The main reason for the possible crunch: Britain is closing a number of aging coal-fired plants—as well as some oil and nuclear ones—to meet European Union environmental laws. One fifth of the existing power stations are scheduled to close over the next ten years. According to Reuters, the U.K. is set to lose more than 12 gigawatts of generating capacity in the next two years. Currently, the country operates 13 coal plants, but nearly half are slated to close by 2015, and all of them could be shut down by 2023, according to government figures.