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Executive summary for German renewable generation and battery storage — forward scenarios, revenue potential, and hedging recommendations.

Last updated 19 Aug 2026, 14:00Market prices through 20 Aug 2026, 21:00Portfolio dataset through 20 Aug 2026, 21:00(1327.9 days history)

Investment readiness

green

Production-ready for decision support with standard human review.

Ready for investment decisions: Yes

⚠ Advisory modules low confidence (non-blocking): capture.

Key metrics

Data confidence

99.6%

decision ready

Forward price (168h scenario mean)

€98.27

Next-day forecast €115.82/MWh · tail P95 €162.46

BESS revenue (stacked)

€133.724

Per MW-year · IRR 2% · DA+ID+FCR+aFRR

Recommended PPA hedge

85%

Solar €50.86/MWh · wind €91.8/MWh strike

Battery economics & PPA pricing

Per MW of battery power · German-market reference defaults (editable assumptions). Not investment advice.

Revenue stack

€133.724/MW-year · fleet €8.023.440/yr

Day-ahead arbitrage€88.437

Intraday arbitrage€17.687

FCR (primary reserve)€18.000

aFRR (secondary reserve)€9.600

Capacity market€0

Avg daily DA spread €135.45/MWh · 1.3 cycles/day · 86% round-trip

Investment case

below hurdle

IRR: 2%
Payback: 12.6 yr
NPV / MW: €-330.510
Capex / MW: €1.200.000
Net rev / MW-yr: €109.724

4h system · €300/kWh · 7% WACC · 15-yr life

PPA pricing

Baseload forward €98.27/MWh · 10-yr tenor

Solar (capture 56%)

€50.86 /MWh strike · achieved €55.28

Wind (capture 102%)

€91.8 /MWh strike · achieved €99.78

Recommended hedge fraction

85%

Strike = achieved price net of 8% offtaker risk discount.

My plant — what-if

Adjust your asset and market assumptions; economics recompute instantly. Seeded from current market (spread €135.45/MWh, baseload €98.27/MWh).

Battery power (MW)Duration (h)Capex (€/kWh)Cycles/daySpread capture (%)Round-trip (%)FCR alloc (%)aFRR alloc (%)WACC (%)Project life (yr)

Revenue (stacked)

€133.724 /MW-yr

Fleet €8.023.459/yr

DA: €88.437
Intraday: €17.687
FCR: €18.000
aFRR: €9.600

Investment

IRR 2.0%

below hurdle

Payback: 12.6 yr
NPV/MW: €-330.507
Capex/MW: €1.200.000
NPV fleet: €-19.830.421

PPA strike (capture-adjusted, 8% risk discount)

Solar €50.9/MWh

Wind €91.8/MWh

Input data quality

99.6

Band: decision ready

Scenario engine

joint_scenario_engine_v2

Paths: 200
Horizon: 168h
Price mean: €98.27/MWh
P05 – P95: €27.98 – €162.46
Copula ρ(gen, price): -0.437
t-copula df: 4

Portfolio analytics

Day-Ahead Forecast (next 24h)

critical

€115.82/MWh

medium confidence

Capture w/ +storage (counterfactual)

advisory

0.9196

low confidence

15-min Paths (168h)

critical

€124.69/MWh

medium confidence

BESS Dispatch (model)

critical

€587.76

medium confidence

PPA Tail Risk

critical

85%

medium confidence

Crisis Alpha (advisory)

advisory

€21.78k

medium confidence

Strategic insights

Portfolio Manager
Core inputs are strong enough for BESS and PPA shadow-testing and production decision support.
Quant / Risk
Scenario Engine v2 uses t-copula coupled (generation, price) paths — PPA and BESS share one joint scenario set.
BESS Operator
Foresight gap averages €23,373 vs perfect-foresight upper bound — treat gap as upside, not base revenue.
BESS Operator
Realistic rolling-DA BESS value is 2% of perfect-foresight LP (€588 vs €25,198 upper bound).
BESS Operator
Validate rolling-DA dispatch against real SoC, C-rate, and cycle limits before live dispatch.
PPA Originator
CVaR-optimal sold fraction 85% — shadow verdict: on_track (ex-post hit rate 100% within ±5%).
Risk Manager
Wide price tail in scenarios; require manual approval for larger PPA volume or aggressive BESS.

Model quality & risk checks

Day-ahead holdout accuracy (MAE): €14.92/MWh
Uncertainty band coverage: 69.6%Gate passed
Market regime drift: 9.4%