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Attention! The REopt Web Tool and API are now using open-source optimization solvers; you may experience longer solve times and timeout errors, especially for evaluations with net metering, resilience, and/or 3+ technologies. For additional information, including suggestions on how to mitigate these issues, please read our full announcement.


The REopt® web tool allows users to:

  • Evaluate the economic viability of distributed PV, wind, battery storage, combined heat and power (CHP), geothermal heat pumps (GHP), and thermal energy storage.
  • Identify system sizes and dispatch strategies to minimize energy costs.
  • Estimate how long a system can sustain critical load during a grid outage.

Watch REopt Tutorial Videos