Article

A comprehensive analysis of 10 MWp solar facilities in five high-insolation regions, including Chile, Algeria, Australia, the USA, and India, shows that integrating Battery Energy Storage Systems (BESS) significantly enhances economic returns. In the Atacama Desert, Chile, a solar facility can generate 23.36 GWh annually, with BESS allowing for strategic energy storage and higher evening prices.

Utilizing BESS can increase ROI by 40-50%, reduce payback periods from 7.7 to 5.0 years, and add $0.5-0.95M in annual net revenue. The study found that BESS value increases with insolation, making it beneficial even in moderate sun areas like Rajasthan.

Capital investment for a BESS-integrated solar project is approximately $11.25M, with operating costs at 1% of capex annually. Current battery prices are at $125/kWh, down from $1,200/kWh in 2010, with projections indicating further reductions. The findings indicate a strong future for solar+BESS hybrid projects.