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Future Long-Term Storage
The hot technology now is Short-Term Storage (read: lithium-ion battery energy storage systems or BESS), and I write about these frequently.
However there are really two or three types of energy storage systems from a duration (discharge time) standpoint. Li-ion BESS typically have a one to four-hour discharge period at full-output. Although it really hasn’t found a strong market, a BESS based on flow-battery technology can economically provide a duration of up to eight hours.
And finally we have the subject of this post. Long-Term storage potentially provides a duration longer than could be economically provided by a Flow-BESS. In this post I will cover pumped storage, also I will cover a technology for long-term storage based on green-hydrogen, and finally a couple of emerging technologies that might provide long-term storage in the future.
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