In September 2017, Hurricane Maria struck Puerto Rico with sustained winds of 155 mph. It tore a diagonal 100-mile swath across the island, demolishing tens of thousands of homes and washing away roads and bridges.
The storm toppled transmission and cell towers, snapped concrete power poles, battered power plants and plunged the island into darkness. It killed an estimated 3,000 people and caused over US$90 billion in damages.
In response, Congress authorized some $23 billion in disaster aid, including at least $10 billion to restore or replace Puerto Rico’s electricity grid. It also passed the Disaster Recovery Reform Act to promote a more flexible energy system that could withstand and recover quickly from climate disruptions.
FEMA, which administers the funds, has allocated $9.4 billion for rebuilding Puerto Rico’s electricity system and will start approving projects after it receives more details explaining how the work will be performed. So far, none of this money has been earmarked for renewable power, except for a small sum to repair a hydroelectric dam that provides less than 1% of the island’s power.
The organizations making decisions in Puerto Rico are the Commonwealth’s Electric Power Authority, known as PREPA, and Luma Energy, a private company that received a 15-year contract in 2021 to manage power transmission and distribution on the island. PREPA and Luma have proposed hundreds of projects for the coming decade, but none include federal funding for rooftop solar, community solar, battery storage or microgrids. Advocates say that this kind of small-scale local generation would make the island’s electricity cheaper, cleaner and more reliable.
A 2015 study by the nonprofit Institute for Energy Economics and Financial Analysis found that investing in solar and wind power and energy efficiency could transform Puerto Rico’s electrical system into a resilient grid. And in 2020, the U.S. National Renewable Energy Laboratory estimated that rooftop solar power in Puerto Rico could generate roughly four times as much electricity as residents currently use.
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