Key Takeaways
- GE Vernova will deliver three 5.5 MW, 158‑m hub‑height onshore turbines to Stadtwerke Heidenheim’s Schlotberg‑Jüchsen wind farm in Germany.
- The contract includes a 20‑year full‑service agreement, guaranteeing operation, maintenance, and parts support through 2047.
- Delivery starts August 2027; the farm is slated for commercial operation by December 2027, raising the utility’s GE‑Vernova capacity to 74 MW.
- The deal marks the sixth joint project between the two firms and reinforces Germany’s target of 80 GW onshore wind by 2030.
GE Vernova Secures Three 5.5 MW Turbines for Schlotberg‑Jüchsen
Project Overview
Stadtwerke Heidenheim AG (StW Heidenheim) signed a supply and service contract with GE Vernova for three of the company’s flagship 5.5 MW, 158 m rotor‑diameter onshore turbines. The turbines will be installed at the Schlotberg‑Jüchsen site in Baden‑Württemberg, a region earmarked for accelerated renewable‑energy rollout.
- Turbine model: GE Vernova 5.5‑MW (H158)
- Hub height: 158 m
- Rotor diameter: 158 m (≈19,600 m² swept area)
- Rated power: 5.5 MW per unit (total 16.5 MW)
- Service term: 20 years (operations & maintenance, spare‑parts logistics, performance guarantees)
The agreement aligns with Germany’s “Wind Energy Act” (WindG) ambition to install 80 GW of onshore capacity by 2030, of which roughly 30 GW must be added between 2025‑2030. The three turbines will contribute ≈20 % of the 74 MW GE‑Vernova fleet already operating under StW Heidenheim’s portfolio.
Timeline & Milestones
| Milestone | Date | Description |
|---|---|---|
| Contract signing | 13 Nov 2026 | Formal agreement for three turbines + 20‑yr service |
| First turbine shipment | Aug 2027 | Start of logistics from GE Vernova’s Ørsted‑certified plant |
| Site delivery & erection | Aug‑Oct 2027 | Foundation work, tower assembly, rotor installation |
| Commissioning & grid connection | Dec 2027 | Full commercial operation, performance testing |
| Service contract expiry | Dec 2047 | End of 20‑yr O&M term (options for extension) |
Why GE Vernova’s “Workhorse” Strategy Matters
GE Vernova’s onshore lineup is built around standardized, high‑volume platforms that minimize engineering change orders and simplify field installation. The 5.5‑MW H158 model exemplifies this approach:
- Industrialized production: Modular blade molds and automated blade‑assembly lines achieve a 15 % cost reduction versus custom‑built 4‑MW units.
- Reliability metrics: Global fleet data (59,000+ turbines) show an average availability of 97.5 % and a capacity factor of 44 % in comparable wind regimes.
- Lifecycle cost: 20‑year service contracts typically lower Levelized Cost of Energy (LCOE) by 0.8‑1.2 ¢/kWh through predictive maintenance and spare‑part pooling.
These attributes are critical for German utilities that must meet stringent grid‑stability and capacity‑factor targets while containing capital expenditures.
Comparative Snapshot: 5.5 MW H158 vs. Conventional 3‑MW Turbines
| Feature | GE Vernova 5.5 MW H158 | Typical 3‑MW Onshore Turbine |
|---|---|---|
| Rated Power | 5.5 MW | 3.0 MW |
| Hub Height | 158 m | 100‑120 m |
| Rotor Diameter | 158 m | 110‑115 m |
| Swept Area | 19,600 m² | 9,500 m² |
| Capacity Factor (EU avg.) | 44 % | 35‑38 % |
| Estimated LCOE (€/MWh) | 45‑48 | 55‑60 |
| Service Life (incl. O&M) | 20 yr contract | 15‑20 yr (often separate) |
| Production Volume (2024) | 150+ units/yr | 80‑120 units/yr |
The H158’s larger rotor and higher hub height capture 30‑35 % more wind energy per turbine, translating into fewer foundations, reduced grid‑connection points, and lower overall project logistics.
Strategic Implications for Germany’s Renewable Roadmap
- Capacity Scaling: Adding 16.5 MW to the Schlotberg‑Jüchsen site accelerates the region’s contribution toward the national 80 GW onshore target.
- Supply‑Chain Localization: GE Vernova’s German‑based manufacturing hub in Bremen supplies key components, supporting domestic job creation (≈250 FTEs) and reducing transport emissions.
- Long‑Term Asset Management: The 20‑year service contract mitigates performance risk for StW Heidenheim, ensuring predictable cash flows and compliance with EEG (Renewable Energy Sources Act) remuneration schemes.
Bottom Line
GE Vernova’s delivery of three 5.5‑MW, 158‑m turbines to Stadtwerke Heidenheim underscores the growing preference for high‑capacity, industrially‑scaled wind solutions in Germany. The 20‑year full‑service agreement not only safeguards operational reliability but also aligns with the country’s aggressive onshore wind expansion goals. By leveraging a proven “workhorse” platform, the partnership delivers superior energy yield, lower LCOE, and a clear pathway toward a carbon‑neutral power system by 2045.