BESS Investment Calculator

Investment Parameters

Customer Name:

Number of Powerpacks:

Price per Powerpack (EUR):

Total Investment Amount (EUR):

Purchase Price Discount (%):

Net Investment Amount (EUR):

Total Capacity (kWh):

Revenue Scenarios

Worst Case Annual Revenue (EUR/year):

Mid Case Annual Revenue (EUR/year):

Best Case Annual Revenue (EUR/year):

Annual Revenue Decrease (%):

Annual Operating Costs (1 MW Site Scale)

Fixed Site Costs:
Grid: EUR 45,700/year | Electricity: EUR 19,000/year

Insurance Cost (EUR/kWh/year):

Maintenance Cost (EUR/kWh/year):

Aggregator Fee (% of Operating Margin):

Rent (% of Net Revenue):

RenewBee Fee (% of Net Net Revenue):

Tax Parameters (The "Triple Stack")

Depreciation Method:

Remaining Duration (Years):

Year 2+ Declining Write-off (%):

IAB Percentage (% of Total Investment): Max 50% according to Paragraph 7g EStG. Claimed in Year 0 (before purchase).

Maximum IAB Benefit (EUR): Legal maximum: EUR 200,000 total open IAB claims.

Use IAB Benefit to Reduce Depreciation Base

Sonderabschreibung (%): 40% for assets acquired from 2024 (20% before 2024). Applied in Year 1.

Investor Tax Rate (%): Used to calculate IAB Benefit AND Tax Refunds from Write-offs.

Project Duration (Years):

Additional Costs (%):

Financials & Loan

Enable Loan

Loan Details

Down Payment (% of Net Capital Base): Applied to Investment AFTER IAB Benefit

Loan Duration (Years):

Interest Rate (%):

Special Repayment (EUR):

Financial Projections

LEGAL DISCLAIMER & LIMITATION OF LIABILITY

Revenue Assumptions: Revenue projections in this calculator are based on the Clean Horizon Battery Energy Storage Index (www.cleanhorizon.com). Clean Horizon is a leading independent energy market analysis and consulting firm specializing in renewable energy and battery storage markets across Europe. Their indices are widely recognized by investors, developers, and financial institutions as authoritative benchmarks for battery storage revenue potential. However, past market performance does not guarantee future results.

General Disclaimer: This calculator and resulting PDF reports are provided by RenewBee for educational and illustrative purposes only. RenewBee does not guarantee any financial returns, profits, or specific performance outcomes whatsoever. All figures, including ROI projections, operating costs, and grid fees, are estimates based on current market conditions and assumptions. Energy markets and grid tariffs are highly volatile; actual results may differ significantly. This tool does not constitute financial, legal, or tax advice. Investment decisions should be made in consultation with qualified financial, tax, and legal advisors. RenewBee GmbH and its affiliates assume no liability for decisions made based on this calculator's output. All investments carry risk, including the potential loss of principal.