The state of Hawaii is aggressively switching to 100% clean energy. Since it doesn't produce any fossil fuels of its own, it has long relied on importing all of its energy from outside countries. Today it's using its resources with sun, wind, geothermal and tidal, plus newly built “battery farms” that can store the energy and then distribute it as needed.
Hawaii is blessed with an abundance of wind, sun and geothermal power but doesn’t have a drop of fossil fuel. Instead, every 10 days or so an oil supertanker arrives at a refinery near the Honolulu port, producing almost 80% of the state’s energy, said Mikulina. Almost all that oil comes from as much as 6,000 miles away, primarily from Libya and Argentina, making energy in Hawaii expensive and prone to both weather and geopolitical disruption. “We’re one supertanker away from becoming Amish,” he said. “We have a 25-day oil supply in storage.”