Categories
-
Recent Posts
- Telling others about peak oil and limits to growth
- Why coal was only created once
- Failed State Index: nations ranked from failed to stable
- We already have a date for the zenith of civilization: 2025-2026
- Escape to Mars after we’ve trashed the Earth?
- Spermageddon: Sperm is declining around the world
- Thorium nuclear bombs and reactors have too many challenges
- Who Killed the Electric Car & more importantly, the Electric Truck?
- President Carter’s energy solutions 1977
- Peak Menhaden
- Hemp for paper, textiles, the war on drugs, and more
- Why towns have a hard time adding EV, solar, heat pumps
- Building a national super grid in America
- The Mayflower from the book The Barbarous Years
- The deep sea is a desperate place to drill for more
Tag Archives: solar PV
Solar panels in the Sahara could cause global warming
Preface. Adding tens of thousands of square miles of solar panels to replace fossil fuels could cause climate change and heat up the planet. Of course this is a fantasy, dust storms would scour the panels rendering them useless, with … Continue reading
Posted in Global Warming, Heat, Photovoltaic Solar
Tagged climate change, energy, global warming, solar PV
Comments Off on Solar panels in the Sahara could cause global warming
Want to go off-grid? You might need hundreds of Tesla batteries
Preface. Although you may not be as far north as Victoria, British Columbia (48.4 latitude), you’d ideally want to be at 30 degrees or less latitude from the equator to even consider the expense of off-grid solar power. And even … Continue reading
Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 2
Preface. Below is a book review of Charles Hall’s 2017 book, “Energy Return on Investment: A Unifying Principle for Biology, Economics, and Sustainability“, that he wrote to discover why solar advocate EROI results are so much higher than what was … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, Pedro Prieto, Photovoltaic Solar, Solar EROI
Tagged capacity credit, EROEI, EROI, solar PV
Comments Off on Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 2
Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 1
Book review by Alice Friedemann at energyskeptic of “Spain’s Photovoltaic Revolution. The Energy Return on Investment”, by Pedro Prieto and Charles A.S. Hall. 2013. Springer. Conclusion: the EROI of solar photovoltaic is only 2.45, very low despite Spain’s ideal sunny … Continue reading
Is there enough renewable energy to replace fossil fuel electricity generation?
NREL. July 2012. U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis. National Renewable Energy Laboratory. This document is a thought experiment that uses GIS mapping to estimate how much renewable power could possibly be generated in each state regardless of … Continue reading
Wind & Solar need thousands of tons of steel, aluminum, cement, concrete, copper but produce little energy
Summary of Sergio Pacca and Darpa Horvath 2002 Greenhouse Gas Emissions from Building and Operating Electric Power Plants in the Upper Colorado River Basin ENVIRONMENTAL SCIENCE & TECHNOLOGY / VOL. 36, NO. 14 pp. 3194-3200 As you can see, Wind … Continue reading
Posted in Alternative Energy, Photovoltaic Solar, Wind
Tagged alternative energy, coal, natural gas, plants, solar PV, wind
Comments Off on Wind & Solar need thousands of tons of steel, aluminum, cement, concrete, copper but produce little energy