Wind in most places in the United States blows most strongly from the evening to the early morning (6 PM to 9 AM.) Electrical demand is the highest from 2 PM until 6 PM. The marginal rates for electricity mirror this demand cycle. If wind energy could be stored in the evening and early morning when rates are low and put back on the grid in the afternoon when rates are three to eight times higher, utilities could maximize the return on their investment in wind energy.

Asemblon is working with several of the most forward thinking electric utilities to test the economic feasibility of this time-shifting technique.