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Post Tagged with: "Photovoltaic"

Renewable Electricity: Falling Costs, Variability, And Scaling Challenges

Renewable Electricity: Falling Costs, Variability, And Scaling Challenges

Costs to utility companies from the introduction of distributed solar PV are somewhat balanced by the fact that added solar capacity helps reduce the strain on electric grids on summer days when demand soars and utilities must buy additional power at high rates. Nevertheless, as more residential and business customers install their own PV systems, revenues to the utility industry are starting to decline.[72] Industry-sponsored studies warn that the trend could eventually lead to a radical transformation of energy markets, on a scale similar to the restructuring of the telecommunications industry following the advent of the Internet and cell phones.

Photo-Voltaics Is Not An Energy Sink In Switzerland

Photo-Voltaics Is Not An Energy Sink In Switzerland

Energy Policy recently published a study conducted on the EROEI of Photo-Voltaics (PV) technologies installed in Switzerland. The end result is a remarkably low figure of 0.8:1, well below any EROEI assessments ever conducted on this energy technology. Such a figure naturally made the delight of those campaigning against renewable energy, who take at face value any hints of negative[Read More…]

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The Real EROI Of Photovoltaic Systems: Professor Charles Hall Weighs In

The Real EROI Of Photovoltaic Systems: Professor Charles Hall Weighs In

Charles Hall is known for his multiple and important contributions in the field of sustainability, and in particular for having introduced the concept of Energy Return on Energy Investment, EROI or EROEI. He is now emeritus and still active in research; among other things as chief editor of the new Springer journal: “Biophysical Economics and Resource Quality, BERQ. Here, he[Read More…]

by Comments are Disabled Alternative Energy
But What’s The REAL Energy Return Of Photovoltaic Energy?

But What’s The REAL Energy Return Of Photovoltaic Energy?

Some time ago, a colleague of mine told me the story of when he had been in charge of the installation ofone of the first photovoltaic plants in Italy, in 1984 (shown in the figure, on the right). He told me that, shortly after the installation, a high-ranking politician came to visit the plant. As a demonstration, my colleague connected[Read More…]

by Comments are Disabled Alternative Energy