Energy storage costs cannot be reduced

How to improve energy storage technologies?

Traditional ways to improve storage technologies are to reduce their costs; however, the cheapest energy storage is not always the most valuable in energy systems. Modern techno-economical evaluation methods try to address the cost and value situation but do not judge the competitiveness of multiple technologies simultaneously.

Is cheapest energy storage a good investment?

In most energy systems models, reliability and sustainability are forced by constraints, and if energy demand is exogenous, this leaves cost as the main metric for economic value. Traditional ways to improve storage technologies are to reduce their costs; however, the cheapest energy storage is not always the most valuable in energy systems.

Do energy storage systems provide value to the energy system?

In general, energy storage systems can provide value to the energy system by reducing its total system cost; and reducing risk for any investment and operation. This paper discusses total system cost reduction in an idealised model without considering risks.

Should energy storage be reduced by minimising LCoS?

As a result, instead of improving energy storage by minimising the LCOS, one could maximise the system-value and assess the market potential indicator. Why reducing the total system cost should also be in the interest of technology developers will be discussed in Section 4.4.

Should energy storage be optimised for a cheaper electricity system?

It shows that the introduction of optimised sizing can lead to electricity bill savings of roughly half a cent, with the H2 -Hub scenario contributing only to negligible more savings. As a result, increasing design freedom of energy storage can be desirable for a cheaper electricity system and should be considered while designing technology.

Should energy storage design be considered when designing a cheaper electricity system?

As a result, increasing design freedom of energy storage can be desirable for a cheaper electricity system and should be considered while designing technology. The optimal storage design depends on location and technology.