DOE publicly launched the Puerto Rico Grid Resilience and Transition to 100% Renewable Energy (PR100) study in February. After back-to-back natural disasters that destroyed around 80% of the island’s power distribution and transmission infrastructure, the U.S. and Puerto Rico will work together to rebuild a resilient, reliable, and robust energy system that will not be dependent on imported fossil fuel. Instead, it will focus on renewable energy with the island’s own excellent supply of sun, wind, water, and other renewable resources. To learn more read: 100% Renewable Energy In Puerto Rico — How To Get There.


Key Takeaways:

  • Improving resilience of energy infrastructure in the face of extreme weather is a high priority for stakeholders.
  • PR100 has set these milestones: 40% renewable energy by 2025, 60%  renewable energy by 2040, and 100% renewable energy by 2050.
  • The PR100 study is working off a similar analysis for Los Angeles in the LA100 study, which generated custom scenarios for the city to achieve its own 2045 clean energy goals.
  • The study’s clean energy scenarios will use curated models of Puerto Rico to simulate how such an energy transition could play out. The models are assembled and simulated with a software suite that, when brought together, can forecast energy system evolution into the far future. 
  • In a preliminary study, analysts found that distributed solar photovoltaics (PV) installed on all residential rooftops in Puerto Rico would generate 20 gigawatts of power, far exceeding the current capacity.

Path to 100% Perspective:

Jussi Heikkinen, a member of the Path to 100% Community of Experts, outlined Puerto Rico’s optimal path to decarbonization in a study last year. The key in the path is to make the system is flexible enough to enable the addition of large amounts of variable renewables. In the transition from fossil fuels to renewable energy, you must ensure the system has constantly adequate firm power capacity. Without it, the country could experience blackouts or shortages. Before retiring all legacy thermal power plants. new flexible gas power plants need to be added. They will be able to operate as needed to provide a backup for variable solar and wind generation. They can also later be converted to run on sustainable fuels.