Adding solar and storage to every home in Puerto Rico, plus solar on commercial sites, could provide 75% of the territory’s electricity by 2035. And the cost of doing so could be lower than a base case that simply projects today’s grid and generation mix ahead to 2035, said a report from nonprofit groups Cambio and IEEFA (Institute for Energy Economics and Financial Analysis).
Rooftop solar on houses could reach 2.7 GW, paired with 2.5 GW of storage, with a comparable amount of solar on commercial sites. “Minimal upgrades” to the distribution system would be required, the report said.
The investments would be supported with $9.6 billion of Federal Emergency Management Agency (FEMA) grid reconstruction funds. Money was allocated in response to grid damage caused by hurricanes Irma and Maria in 2017 and is expected to be dispersed soon.