Tag Archives: photovoltaic

Negative energy return of solar PV in Northern Europe

Posted on June 16, 2021 by

Preface.  I once yanked this paper after huge blow back, almost as bad as nuclear proponents, but in the past few years, I have no reason to doubt Ferroni and Hopkirks methods, boundaries, or conclusions, so I’m putting this post … Continue reading →

Posted in Photovoltaic Solar, Solar EROI | Tagged , , , | Comments Off on Negative energy return of solar PV in Northern Europe

Not enough rare metals to scale up solar power

Posted on February 21, 2021 by

  Preface. Sunshine may be free, but the materials to make solar contraptions sure aren’t.  Since sunshine arrives in a diluted form, vast expanses of solar photovoltaic panels will be needed to produce the world’s 24,000 Terawatt hours of electrical … Continue reading →

Posted in Alternative Energy, Mining, Peak Critical Elements, Peak Rare Earth Elements, Photovoltaic Solar, Recycle, Recycling | Tagged , , , , , , , | 5 Comments