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Beta Version: Still undergoing development, testing, and validation.

REopt Lite

The REopt™ Lite web tool helps commercial building managers:

  • Evaluate the economic viability of grid-connected PV and battery storage at a site
  • Identify system sizes and battery dispatch strategies to minimize energy costs
  • Estimate how long a system can sustain critical load during a grid outage.

REopt Lite offers a no-cost subset of NREL's more comprehensive REopt model. Contact for full REopt analysis services.

Step 1: Select Your Technology

Do you want to evaluate PV, battery, or both?

Step 2: Enter Your Data

Enter information about your site and adjust the default values as needed to see your results.

* Required field

Capital Cost Based Incentives

Percentage-based incentive (%) Maximum incentive ($) Rebate ($/kW) Maximum rebate ($)



Production Based Incentives

Production incentive ($/kWh) Incentive duration (yrs) Maximum incentive ($) System size limit (kW)