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Electricity arbitrage profitability calculator

Estimate the profit of a battery storage system buying cheap and selling expensive electricity

Battery system

Battery capacity, kWh

Depth of discharge (DoD):

Round-trip efficiency:

Annual degradation:

Prices and operation

Charge price (buy), per kWh

Discharge price (sell), per kWh

Cycles per day:

Operating days per year

Additional parameters (payback)

System cost (CAPEX), грн

Annual O&M cost, грн

Project lifetime, years

Annual price escalation, %

Cycle life (max cycles)

Calculation results

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Margin per kWh

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Net per cycle

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Net per day

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Net per month

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Net per year (yr 1)

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Total profit (lifetime)

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Payback period

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ROI (lifetime)

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LCOS (storage cost)

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Lifetime throughput

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Year	SoH	Discharged, kWh	Charging cost	Revenue	O&M	Net	Cumulative

The calculation is an estimate based on a simplified arbitrage model (round-trip efficiency, linear annual degradation, cycle-life cap, optional price escalation) and may differ from actual results. It does not account for taxes, grid fees, market price volatility or financing costs.