Combining solar + battery energy storage reduces LCOE ~6%
NREL released inaugural solar + battery energy storage report which indirectly says;
- Standalone solar $60 MWh levelized cost of electricity (LCOE)
- Standalone battery energy storage (BES) $171 MWh LCOE
- Combined solar $56 MWh LCOE + BES $163 MWh LCOE
The takeaway is combining solar + BES reduces costs through shared indirect costs plus balance of plant, reducing solar LCOE -6% and BES LCOE -5%.
– Mike Reed
PV Magazine Source Article: Utility scale solar power plus lithium ion storage cost breakdown