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Category Archives: Solar
Not enough rare metals to scale up solar power
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 power … Continue reading
Posted in Alternative Energy, Elements: Critical, Elements: Rare Earth, Mining, Photovoltaic Solar, Recycle
Tagged gallium, indium, photovoltaic, PV, rare earth, Ruthenium, solar, tellurium
5 Comments
Renewables must help pay for transmission and their energy storage backup of fossil power plants
Preface. Wind and solar advocates don’t include transmission and backup costs in their net energy calculations. But without fossil backup, the electric grid will come down due to lack of storage. There is almost nowhere left to put pumped hydro … Continue reading
Posted in Electric Grid, Energy Storage, Solar, Solar EROI, Wind, Wind EROI
Tagged energy storage, fossil fuel backup, renewable, solar, wind
2 Comments
Concentrated Solar Power is dying out in the U.S.
Preface. Concentrated Solar Power (CSP) contributes only 0.06 % of U.S. electricity, mainly in California (64 %) and Arizona (24 %) because extremely dry areas with no humidity, haze, or pollutants are required. Of the 1861 MW power they can … Continue reading
Building a national super grid in America
Preface. Renewables are not evenly distributed. Just 10 states have 80% of hydropower (Homeland Security 2011), 10 states produce 75% of wind power (EIA 2017), and 10 states produce 79% of solar power (CE 2020). With a national grid, instead … Continue reading
Posted in Blackouts, Electric Grid, Electric Grid, Electricity, National Super Grid, Solar, Vaclav Smil, Wind
3 Comments
Movie review of Michael Moore’s “Planet of the Humans”
Preface. This documentary was made by Jeff Gibbs, a writer and environmentalist, with Michael Moore as the executive producer. This movie is worth watching, and an entertaining and quick way to understand why rebuildable “renewables” are neither green or a … Continue reading
Posted in Alternative Energy, Biomass, Coal, Natural Gas, Solar, Wind
Tagged green power, Michael Moore, Planet of the Humans, renewables, solar, wind
15 Comments
Wind, solar, and natural gas are driving nuclear power out of business
Preface. I’m no fan of nuclear power because we may already be at peak uranium, there’s nowhere to store nuclear waste, and a spent nuclear pool fire could harm millions of people. But renewable wind and solar and natural gas … Continue reading
Can concentrated solar power be used to generate industrial process heat?
Preface. The bright future of solar thermal powered factories, makes some important points about using concentrated solar power to generate heat: “…A large share of energy consumed worldwide is by heat. Cooking, space heating and water heating dominate domestic energy … Continue reading
Concentrated Solar Power can only exist in deserts and use too much water
What follows is my summary of: Bracken, N., et al. 2015. Concentrating solar power and water issues in the U.S. Southwest. U.S. department of energy, National renewable energy lab. Alice Friedemann www.energyskeptic.com author of “When Trucks Stop Running: Energy and … Continue reading
Posted in Concentrated Solar Power, Electricity
Tagged aquifer, concentrated solar power, CSP, desert
1 Comment