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King Island's Innovative Microgrid

Sitting in the middle of Australia’s Bass Strait, King Island features one of Tasmania’s last remaining true microgrids. The cutting edge microgrid is similar to that of Kotzebue, Alaska with its integrated wind and solar installations, with the addition of two 4.2 ton flywheels and a 3 MW lead acid battery energy storage system. Until recently, the battery was the largest in Australia. The microgrid load is around 2.6 MW and the island also has around 1 MW of residential rooftop solar and buys excess solar at a 1 to 1 rate, $0.25 per kWh – the same rate residents pay for their power. A recent addition to the microgrid is a 200 kW demonstration wave energy device that has been operating since July 2021 in a bay near the town of Grassy. The Wave Swell system operates with very few moving parts making it an interesting innovation for ocean energy. Learn more about the Alaska Center for Energy and Power at https://acep.uaf.edu.