Tag Archives: Electric grid reliability

Wind and the Grid: a Precautionary Tale from the U.K.

U.K. wind farm. Photo credit: Daily Mail

by James A. Bacon

So, you think the rolling blackouts experienced in California were a fluke and of no relevance to Virginia? Well, then, consider what’s happening right now in the United Kingdom, where “unusually low wind output” and a series of planned power plant outages puts the nation at risk of blackouts. You see, the U.K. relies upon wind power for literally half of its electricity, which is just dandy when the wind is blowing, but not so great when the airs are calm.

As it happens, here in Virginia, Dominion Virginia Power has finished installation of its first two offshore wind turbines. Those two units are paving the way for a much wider deployment of wind power in the Atlantic Ocean. The utility forecasts that wind will account for 5.1 megawatts of its electric-generating capacity (about 20%) within 15 years.

In the U.K. the becalming of the wind — windpower is expected to drop from 51% of output to as low as 10% over the weekend — coincides with planned outages at two of the country’s nuclear reactors, reports the Daily Mail. The National Grid Electricity System Operator reassured the Brits that it would “make sure there is enough generation” to prevent blackouts…. In other words, the U.K. will be cutting it really close. Continue reading