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The REopt® web tool allows users to:

  • Evaluate the economic viability of distributed PV, wind, battery storage, combined heat and power (CHP), 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

Step 0: Login and Gather Data

Logging in (optional) enables you to:


save your evaluations


create a custom electricity rate


build a critical load profile


manage typical and critical load profiles

Data needed for a Financial run:




electricity rate


load (interval data or building type)


fuel cost (if CHP is modeled)

Data needed for a Resilience run:


critical load assumptions


outage duration


outage start date and time