There is also further potential for new pumped storage schemes (at present used to meet peak demand) that would work with intermittent sources of power such as wind and wave. Examples include the 440 MW Cruachan Dam and 300 MW Falls of Foyers schemes. A 2011 report calculated that pumped storage hydro capacity could supply 2.8 GW of electricity for 5 hours, then drop to 1.1 GW and run out of water in 22 hours. The report concluded that even with projected new schemes at Loch Ness and Loch Sloy, pumped storage would not be able to replace wind electricity during extended windless periods.