Energy storage is an effective way to address the instability of renewable energy generation modes, such as wind and solar, which are projected to play an important role in the sustainable and low-carbon.
Which energy storage technologies are included in the 2020 cost and performance assessment?
The 2020 Cost and Performance Assessment provided installed costs for six energy storage technologies: lithium-ion (Li-ion) batteries, lead-acid batteries, vanadium redox flow batteries, pumped storage hydro, compressed-air energy storage, and hydrogen energy storage.
Are battery storage costs based on long-term planning models?
Battery storage costs have evolved rapidly over the past several years, necessitating an update to storage cost projections used in long-term planning models and other activities. This work documents the development of these projections, which are based on recent publications of storage costs.
The 2020 Cost and Performance Assessment analyzed energy storage systems from 2 to 10 hours. The 2022 Cost and Performance Assessment analyzes storage system at additional 24- and 100-hour durations.
Thus, comprehensively evaluating the technical characteristics, economics and sustainability of an EST under various scenarios has great significance for demonstrating the viability of an EST for large-scale energy storage [10, 11, 20].
What are energy storage technologies?
Energy storage technologies (ESTs) aim to address the volatility and uncertainty of renewable sources and thus solve the difficulties with grid connection and improve the match between electricity supply and demand by the increasing proportion of renewables in the electricity mix.
The projections are developed from an analysis of recent publications that include utility-scale storage costs. The suite of publications demonstrates wide variation in projected cost reductions for battery storage over time.