For Students · Battery Storage
Battery Storage for an LCOE estimate
Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate an LCOE estimate live below — adjust the inputs and watch it respond, right in your browser.
Battery Energy StorageLive
capacity, efficiency & backup
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A battery's rated capacity is not all usable: depth-of-discharge limits protect its life, and round-trip efficiency means some energy is lost charging and discharging. What actually reaches your home is capacity × depth-of-discharge × round-trip efficiency. Together with cycle life, these set backup duration and the cost per stored kilowatt-hour.
Data Inspector
Usable capacity12.2 kWh
Delivered / cycle10.9 kWh
Backup time26.2 hr
Lifetime throughput66 MWh
Governing equation
Reading this result: Usable energy is capacity × depth-of-discharge × round-trip efficiency, so only 10.9 of 13.5 kWh (81%) reaches your home each cycle — the discharge limit removes more here than efficiency does.
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Frequently asked questions
- Is this good for students?
- Yes — this version of "Battery Storage for an LCOE estimate" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.