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An aerial view of cowsheds at Augwind's commercial facility, which provides a new technological solution for storing and producing energy, in Kibbutz Yahel, Israel, on Nov. 30, 2021. Ammar Awad/Reuters
KIBBUTZ YAHEL, ISRAEL—The southern tip of Israel is a rocky desert where solar panels are abundant and the sun, when shining, is the source of nearly all electricity. Once it sets, however, the grid shifts back to fossil fuels to generate power.
Renewable energy from solar and wind powered systems cannot be stored without extra cost.