this post was submitted on 12 May 2026
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Gonna need some words for those letters
Renewable energy sources that can be switched on and off at will with sufficiently deep buffers against lulls in generation are prohibitively expensive (Battery Energy Storage Systems cost 120 usd/kWh) , and this ruins your Energy Return on Energy Invested ratio which is already marginal to start with.
Battery energy storage system and energy return on energy invested. Some use energy cost of energy, in percent.