Is investment in energy storage worth the effort? Didn’t we find out last week that our industry is going nowhere because of the fundamental constraint of its energy return on investment (EROI)? Perhaps we had better take another look, just to be on the safe side.
First off: let’s not panic. While EROI studies point to a possibly critical problem in relying too heavily on energy storage for renewable power generation, the effects, if real, are presumably only likely to kick in at relatively high levels of penetration.
We are a long way off that yet. Meanwhile, there is the fact that the science around EROI, while apparently robust, is still relatively immature and clearly evolving, as indeed are the technologies and manufacturing processes being described.
This potentially implies uncertainty around current EROI assertions and predictions.
Certainly, most sector professionals consulted by Energy Storage Report had few qualms about dismissing the research: “BS” and “hokum” were among the terms used by knowledgeable industry insiders.
Some observers question the impartiality of parts of the research to date.
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