Price Breakdown

All energy flow economics -- costs vs income, fully detailed

Daily Income (Max)

EV Charging Revenue375.18 EUR

635.9 kWh * 59.00 ct/kWh flat rate

PV Savings (ideal)43.27 EUR

370.1 kWh PV * avg 13.38 ct avoided procurement

Total Daily Income418.45 EUR

Daily Costs (Max)

Grid Import (avg procurement)85.08 EUR

635.9 kWh * avg 13.38 ct/kWh (EPEX + fees)

Demand Charge (Leistungspreis)6.56 EUR

80 kW peak * 0.082 EUR/kW/day

Battery Wear21.45 EUR

300 kWh max discharge * 7.15 ct/kWh wear

Total Daily Cost113.09 EUR

Net Daily P&L (Estimated Max)

Income - Costs (worst case: all energy from grid, max cycling)

+305.36 EUR/day

~+111456.82 EUR/year

Daily P&L Waterfall

Revenue and savings vs costs -- each component's daily EUR contribution

Per-kWh Margin by Energy Source

How much the CPO earns per kWh depending on where the energy comes from

PV-sourced59.00 ct/kWh (100% of retail)

Retail 59.00ct - 0 procurement = full margin

Grid (direct)45.62 ct/kWh (77% of retail)

Retail 59.00ct - avg procurement 13.38ct

Grid + Battery38.47 ct/kWh (65% of retail)

Retail 59.00ct - procurement 13.38ct - wear 7.15ct

Grid Export4.98 ct/kWh (8% of retail)

EPEX/Direktvermarktung revenue only -- opportunity cost vs 59.00ct retail

Margin Over Day (15-min)

Procurement cost (orange) + gross margin (green) stacked to flat retail 59.00 ct

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