Many recent posts on this blog have dealt with the theme of the infeasibility of a fully wind/solar/storage electricity system. Today I will deal with another study of the subject, this one from German authors Oliver Ruhnau and Staffan Qvist, titled “Storage requirements in a 100% renewable electricity system: Extreme events and inter-annual variability.” The Ruhnau/Qvist study does not have a date other than “2021,” although it appears to have come out toward the end of that year.

Although Ruhnau and Qvist do not say it explicitly, my conclusion from their paper is that it is a further demonstration of the complete infeasibility — indeed the complete absurdity — of attempting in the short term to replace all fossil fuel electricity generation in a modern economy with only wind, solar and storage.

The background of this issue is that large numbers of green activists, up to and including the current President of the United States, make regular statements indicating that they believe that fossil fuels can be eliminated from the modern economy by simply building sufficient capacity of wind and solar electricity generation. Such statements rarely consider or mention the necessity of energy storage, or the feasibility or cost of same.

And yet any serious consideration of the intermittency of wind and solar inevitably leads to the conclusion that without dispatchable backup (fossil fuel or nuclear) they require vast amounts of energy storage to cover the periods of intermittency. Understanding the amount of storage required, its physical characteristics, and its cost, is completely essential to answering the question of whether a fully wind/solar/storage system is feasible.

Here’s the single most important function of this blog: Saying the things that are patently obvious but that just can’t be said these days in polite society. Yes, it’s The Emperor’s New Clothes every day here at Manhattan Contrarian.

With war raging in Ukraine following Russia’s invasion, there is a renewed concern in many quarters for “energy independence.” Until recently, the sophisticated countries of Europe had thought the whole idea to be passé. They built large numbers of wind turbines and solar arrays, while simultaneously banning fracking for natural gas and shuttering electricity plants that used coal and even those that used no-carbon nuclear. Suddenly, at the very worst possible time, they found themselves completely dependent on Russian gas for heat and reliable electricity.

In the U.S. it’s not nearly so bad (yet), but the combination of the Ukraine invasion with the Biden administration’s resumption of Obama’s war on fossil fuels has also left the U.S. vulnerable to an oil and gas price spike on world markets, whose supply side has been artificially reduced by government hostility to production of fossil fuels.

So what’s the answer? If you are a member in good standing in American media/academia/environmentalist/Democratic Party society, the answer is obvious: Just build more wind turbines and solar arrays until you have enough.