BESS Sizing Guide
1MW / 2MWh BESS Sizing Example
How is a 1MW / 2MWh BESS calculated?
At the simplest level, duration = energy ÷ power. 2MWh ÷ 1MW = 2 hours nominal. This ratio does not by itself prove that the system can continuously serve a 1MW site load for two hours under every operating condition.
What changes the required battery capacity?
Critical versus non-critical load, usable SOC window, conversion losses, auxiliaries, end-of-life capacity target, ambient temperature, cycling strategy and redundancy can all change the nameplate capacity required.
Where is 1MW / 2MWh commonly considered?
Typical screening use cases include industrial peak management, solar energy shifting, hybrid microgrids, diesel-generator support and backup of selected critical loads.
What should be included in an RFQ?
Send the load profile, maximum demand, critical load, required duration, grid conditions, PV and generator capacities, voltage, site environment, duty cycle and required delivery schedule. Then use our calculator or review the 1MWh BESS platform.
Get a preliminary project estimate
Use Zevonexa’s free calculator, then send your actual project inputs for engineering review.
Important sizing limitation
These examples are screening guidance, not a final electrical design or performance guarantee. Final equipment selection requires project-specific engineering, applicable standards, equipment ratings and verified site data.