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United States2025-07en

REopt Key Findings Presentation Shelter Island

Summary

Shelter Island sought to enhance its energy resilience, reduce costs, and lower emissions by exploring distributed solar and battery storage solutions. The National Laboratory of the Rockies performed an REopt analysis on eight sites, finding that solar is cost-effective with 7-10 year paybacks, and batteries offer additional savings for commercial sites. The analysis also highlighted that transitioning from fossil fuel furnaces to heat pumps provides a more significant reduction in direct emissions than solar and batteries offer for indirect emissions.

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