Finally we have an article from a respected academic institution that highlights the prohibitive costs of going renewable with Li-ion battery storage backup. This article has received minimal publicity on the web, so here we give it a little more by making it our feature story. Then on to OPEC; the oil tanker crisis; Kuwait fracks in Canada; Azerbaijan gas; Rio Tinto exits coal; Russia fuels its offshore nuclear plant; Moorside nuclear in doubt; blackouts in South Africa; Australia’s National Energy Guarantee; peaking plants in Europe; an “alarming collapse” in UK renewable investment; 5,000 UK churches go renewable and how heatwaves increase deaths in UK but decrease them in Spain.
MIT Technology Review: The $2.5 trillion reason we can’t rely on batteries to clean up the grid
The Clean Air Task Force recently found that reaching the 80 percent mark for renewables in California would mean massive amounts of surplus generation during the summer months, requiring 9.6 million megawatt-hours of energy storage. Achieving 100 percent would require 36.3 million. The state currently has 150,000 megawatt-hours of energy storage in total, mainly pumped hydroelectric storage with a small share of batteries.
Building the level of renewable generation and storage necessary to reach the state’s goals would drive up costs exponentially, from $49 per megawatt-hour of generation at 50 percent to $1,612 at 100 percent. And that’s assuming lithium-ion batteries will cost roughly a third what they do now. Similarly, a study earlier this year in Energy & Environmental Science found that meeting 80 percent of US electricity demand with wind and solar would require either a nationwide high-speed transmission system, which can balance renewable generation over hundreds of miles, or 12 hours of electricity storage for the whole system. At current prices, a battery storage system of that size would cost more than $2.5 trillion.
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