The region is also a major energy producer, the source of 75 % of the state's oil production and 65 % of its gas production.18 Kern County is the third most
productive oil - producing county in the U.S., 19 accounting for one - tenth of overall U.S. oil production and three of the five largest U.S. oil fields.20 Kern is also home to the world's second largest onshore wind
farm, the Alta Wind Energy Center, 21 and construction is underway there on what will be the world's largest
solar PV installation, at Antelope Valley.22
This passive
solar greenhouse is designed to house a
productive, edible ecosystem which is also combined with a variety of other complementary
farming techniques such as producing fish and poultry food from insects, growing mushrooms from used coffee grounds and growing poultry, fed from by - products of the system.