•We compare batteries deployed in 4500 individual households with 200 communities.
•Using real demand, PV data and locations we form community microgrids.
•We find that community batteries are more effective for distributed PV integration.
•Internal rates of return depend on the number of PV households.
Community energy storage: A smart choice for the smart grid?
Edward Barbour, David Parra, Zeyad Awwad, Marta C.González
Volume 212, 15 February 2018, Pages 489-497