Estimate the grid battery annual output using transparent inputs tailored to grid battery planning. The calculator returns a main estimate plus supporting values so you can check assumptions, compare scenarios, and identify the variables that most affect the result. Use measured project data when available; early-stage defaults are only a starting point and should be replaced before making an investment or engineering decision.
Percent inputs are converted to decimal multipliers. Output is delivered energy, not charging energy.
The main result estimates energy delivered over one year after the entered availability and efficiency adjustments.
Planning estimate only. Confirm equipment limits, degradation, auxiliary consumption, site conditions, tariffs, financing, tax treatment, and safety requirements with qualified professionals.
For 100 MWh, 250 cycles, 88% efficiency, and 95% availability: gross cycled energy is 23,750 MWh and delivered output is 20,900 MWh/year.
Only losses represented by the efficiency or derating input are included. Add upstream losses to the relevant input assumption when needed.
Yes. Enter decimal values where the input permits them; equivalent full cycles can combine many partial cycles.
Use a current usable-capacity value for a single-year estimate, or include a degradation assumption when the calculator provides one.
No. It is a planning estimate and does not model every control limit, tariff, tax, financing, safety, or site-specific constraint.
Dispatch strategy, ambient conditions, auxiliary loads, downtime, control limits, prices, and measurement boundaries can all change actual performance.
| Variable | Unit | Meaning |
|---|---|---|
| Usable capacity | MWh | Energy released by one full discharge |
| Cycles | cycles/year | Equivalent full discharges |
| Efficiency | % | Delivered share of discharged energy |
| Availability | % | Operational adjustment |