Renewable Energy

The AOC 15/50 Wind Turbine

Part 2 of 4 Tower The 80-foot lattice steel tower lifts the wind turbine into stronger winds above the ground. Even without trees, there is some ground friction that reduces wind strength at lower levels. The tower is designed to withstand heavy ice loads and blizzard conditions. Blades/Rotor Engineers working with the Department of Energy’s […]

Renewable Energy

Winds in Kotzebue

Part 3 of 4 The winds in Kotzebue are excellent for use in producing electric power because they are: Energetic The annual average wind speed at KEA’s wind farm is 13.5 miles per hour, almost twice the average wind speeds as noted by the National Weather Service for Anchorage, Alaska’s largest city. Winds in Kotzebue […]

Renewable Energy

Wind Energy Production

Part 4 of 4 The AOC 15/50 turbines begin producing electricity at wind speeds of about 11 miles per hour (mph) and produce 50 kilowatts when winds reach 24.5 mph; the machines produce approximately 80 kW at wind speeds of 26-28 mph. The total amount of electricity produced each year will depend on the winds […]

Renewable Energy

NorthWind 100: New Turbine Powers Up

By Seth Kantner The spring storms off the sea ice spun Kotzebue Electric Association’s new NorthWind 100 wind turbine into action last month, producing the machine’s first kilowatt of commercial power in the world. The NorthWind 100, a nearly quarter-million dollar next-generation prototype built by Northern Power Systems came online in Kotzebue in mid-May. The […]