This is sure to stir up some controversy about the reliability of renewable energy. The following video shows a news report from Minnesota about 12 wind turbines that won’t operate in cold weather due to an issue with the hydraulic fluid. The Minnesota State Municipal Power Association paid $300,000 for each of the turbines. What an amazing and tragic oversight. The news report indicates that there’s a plan to heat the fluid but that would likely require the use of electricity or fossil fuels thereby negating the benefits of the turbine.

There’s a very good lesson to be learned here. As excited as people are about bringing clean, renewable energy to their communities they should always perform due diligence when evaluating clean energy projects or vendors. In Minnesota you would need to have absolute assurance that a system exposed to the elements (which I would imagine could get extreme in Minnesota in the winter) will perform in all weather conditions.