The Financial Times reports that the USA is experiencing the weakest wind speeds for 40 years, which is having a dramatic impact on wind energy businesses.
According to the FT (subscription may be required);
US clean energy suffers from lack of wind
A lack of wind is making the US clean energy sector sweat, with consequences for investors from yield-hungry pensioners to Goldman Sachs.
Electricity generated by US wind farms fell 6 per cent in the first half of the year even as the nation expanded wind generation capacity by 9 per cent, Energy Information Administration records show.
The reason was some of the softest air currents in 40 years, cutting power sales from wind farms to utilities. The feeble breezes come as the White House is promoting renewable energy, including wind, as part of its Clean Power Plan to counter greenhouse gas emissions.
“We never anticipated a drop-off in the wind resource as we have witnessed over the past six months,” David Crane, chief executive of power producer NRG Energy, told analysts last month.
In my opinion this once again demonstrates how useless wind power is, as an energy solution for an economy which requires a reliable, biddable supply of electricity.
It might one day be possible to create an affordable energy storage solution which can provide economical backup for the entire electricity grid for a few hours, or even a few days. But an energy storage solution which can hold enough energy to supplement the entire country’s energy needs for months, or even years, on one charge, is utterly implausible.