At Turkey Hill Dairy in Lancaster County, the secret ingredient in its ice cream is wind.
Along with conventionally derived power used to make its sweet treats, the dairy is the sole customer of a nearby wind farm, built in 2010, that provides 25 percent of its electricity.
“That’s honestly all we need,” said company spokeswoman Andrea Nikolaus.
Relying on wind for bigger operations, or to power the grid, is a different matter. As critics of renewable energy are quick to point out, the wind doesn’t always blow — or it does when customers don’t need it — and the sun doesn’t always shine on solar panels.
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