- Hanne Sæle
- WP3 Lead
- SINTEF Energi AS
Methods for Cost-Benefit Analysis (CBA) of Battery Energy Storage in Power Grids
Challenge and objective
- Batteries can be deployed at strategic locations in the grid and perform active and reactive power control for better grid utilization, as an alternative to reinforcements.
- The lack of established computational methods for including batteries in grid planning is a barrier for taking research-based models into practice.
- Systematic overview of relevant methods reported in the literature.
- Contrasting the state of the art for these research-based methods with real-world applications.
- CBA methods should handle investment timing as well as sizing and siting of the batteries.
- CBA of batteries basically weights investment costs against operational benefits. The methods therefore need realistic modelling of the operational aspects of batteries: Multi-period AC, load and generation uncertainties, degradation.
Impact for distribution system innovation
- Good CBA methods are crucial for analysing batteries and other flexible resources as alternative to traditional grid upgrade solutions.
Reference in CINELDI
- I.B. Sperstad, M. Korpås et.al.: "Methods for cost benefit analysis of batteries in distribution grids", EERA JP Smart Grids - SP Energy Storage, Working paper, 2020.