Solar power used to press wine grapes, cork bottles

Wine enthusiasts sipping Chardonnay might discuss its “terroir,” a French word for the environment in which the grape vine is grown. But sun exposure, from vine to bottle, may be the most important factor at John and Alice Weygandts’ Stargazers Vineyard in Chester County, Pennsylvania, where electricity for pressing grapes and corking about 10,000 bottles of wine a year comes from 30 solar panels…