Wind Turbine Repowering in Germany
Repowering means replacing older wind turbines with modern, higher-capacity units at the same or nearby site. The German market is the largest in Europe — driven by ~6,500 turbines reaching end-of-EEG-funding between 2025–2027.
Typical Configuration
| Parameter | Old (pre-2010) | New (2026) |
|---|---|---|
| Turbine count | 8 × 1.5 MW | 3 × 6.0 MW |
| Hub height | 67 m | 165 m |
| Rotor diameter | 66 m | 162 m |
| Total capacity | 12.0 MW | 18.0 MW |
| Full load hours | ~1,900 h/yr | ~3,000 h/yr |
| Annual yield | ~22.8 GWh | ~54.0 GWh |
| Yield multiplier | 1.0× | 2.4× |
The Repowering Process — 7 Phases, 24–36 Months
- Site assessment (1–3 months): wind data, regulatory framework, environmental factors
- Turbine selection & lease negotiation (3–6 months)
- Permit planning (6–12 months): all mandatory expert reports — bird survey is the critical path (one full season minimum)
- BImSchG permit application (4–18 months): simplified procedure 4–8 months, formal procedure with EIA 18+ months
- EEG auction (parallel): after permit, participation in Bundesnetzagentur quarterly auctions
- Dismantling & construction (8–14 months)
- Commissioning & market entry (2–4 months)
Regulatory Framework
- BImSchG — Federal Immission Control Act, primary permit framework
- EEG 2024 — 20-year market premium, current ceiling 7.35 ct/kWh, auction-based
- WaLG (2022) — federal states must designate 2.2% of land area for wind by 2032; non-compliance suspends concentration zone effects
- § 35 BauGB — privileged status in outdoor areas since 1996
- § 44 + § 45b BNatSchG — species protection with standardized taboo radii for 15 collision-prone bird species
Economic Indicators (2026)
- CAPEX: 1,200–1,700 EUR/kW (repowering 5–10% lower than greenfield)
- OPEX: 20–30 EUR/MWh (typical full-service maintenance contract)
- LCOE: 40–95 EUR/MWh depending on site quality
- IRR: 7–10% typical for repowering projects
- WACC: 4–5% (senior debt 70–80%, equity 20–30%)
Cost Comparison: Repowering vs. Continued Operation
Example for an 8 × 1.5 MW park, EEG ending 2022:
| 5y continued operation | Repowering 3 × 6 MW | |
|---|---|---|
| Investment | EUR 0.5 M (BNK retrofit) | EUR 25 M |
| Annual yield | 22 GWh/yr | 54 GWh/yr |
| Price per MWh | 50 EUR (PPA) | 72 EUR (EEG) |
| Annual revenue | EUR 1.1 M | EUR 3.9 M |
| Cash flow | EUR 0.3 M/yr × 5y | EUR 3.0 M/yr × 20y |
Critical Bottlenecks in 2026
- Turbine delivery: 12–18 months lead time from major manufacturers (Vestas, Enercon, Nordex, Siemens Gamesa)
- Expert offices: accredited acoustic and species-protection consultants are 8–14 months backlogged
- Approval authorities: in Brandenburg, Schleswig-Holstein, Lower Saxony — heavily loaded
Repowering Topics in Detail
What Is Repowering?
Definition, why it matters, and how replacing old turbines unlocks far higher yield at proven sites.
The Repowering Process
All seven phases from site assessment to commissioning — and the 24–36 month timeline.
Economics & Profitability
CAPEX, OPEX, LCOE, IRR — what makes a repowering project financially attractive.
Repowering vs. Continued Operation
The decision after EEG funding ends — when to repower and when to keep running.
Decommissioning & Dismantling
Removal obligations, recycling of blades and steel, and the decommissioning reserve.
EEG Funding
How repowering projects compete in Bundesnetzagentur auctions for 20-year remuneration.
Repowering Market 2026
End-of-funding wave, auction volumes, and where the German market is heading.
Turbine Classes
IEC wind classes and how to match turbine type to site wind conditions.
Considering a repowering project in Germany?
We broker to specialized German engineering offices, lawyers, and financial advisors — first contact is free.
Contact usCommon Questions
Can I get EEG remuneration for a repowering project?
Yes — repowering projects compete in the BNetzA auctions like new builds. No separate "repowering bonus" exists since 2017.
What about south Germany?
Bavaria's 10H rule (10× total height as minimum distance) restricts repowering, but the WaLG could suspend it if the state misses its 2027 land-area target. Watch the regulatory development closely.
What financing structures are typical?
Project finance with 70–80% senior debt from specialized German energy banks (NORD/LB, KfW IPEX, Bayern LB), 20–30% equity from sponsors, mandatory citizen participation in MV, BB, NRW.