RWE and Masdar Sign $3.6 B German Offshore Wind MoU for 2027 Auctions
RWE and Masdar Target $3.6 B German Offshore Wind MoU
> Industry view: two players lock in early, six months before Germany’s 2027 auction window
1. Event Background: An Energy Handshake During a State Visit
On 15 September 2026, Germany and the United Arab Emirates completed a high-level exchange. RWE and Abu Dhabi Future Energy Company Masdar used the state visit of UAE President Sheikh Mohamed bin Zayed Al Nahyan as the occasion to sign a Memorandum of Understanding (MoU) targeting Germany’s 2027 offshore wind auction. The agreement carries an indicative investment value of more than $3.6 B (€3 B).
#### 1.1 Track Record of the Partnership This is not an ordinary order. The two companies already have three strands of cooperation in the United Kingdom:
For a parallel look at how European onshore wind is pulling transformer demand, see our analysis of how the UK onshore wind pipeline now tops 50 GW with rising step-up transformer demand.
| Existing cooperation | Capacity | Status |
|---|---|---|
| London Array | > 600 MW | In operation since 2013 |
| Dogger Bank South (East + West) | 3 GW | CfDs awarded under AR7 |
| Joint operation / development | 3.6 GW | Currently in service or under construction |
The numbers look simple, but the logic behind them is clear: both sides have tasted success, so the 2027 German auction is a natural place to place another bet.
#### 1.2 Official Statement and Strategic Intent RWE’s official line is measured: “Offshore wind is expected to play a central role in Germany’s future electricity system, and partnerships will be important in developing new projects at scale.” Translated into industry language: going it alone carries risk; sharing upfront capex and supply chain exposure is the smarter play.
2. Why Germany 2027?
#### 2.1 Three-Layer Driver Logic Three keywords frame the picture: Energiewende, EEG (the German Renewable Energy Sources Act), and the North Sea.
Cumulative German offshore wind capacity has surpassed 8 GW, while the federal government’s 2030 target is 30 GW. The gap to fill is 22 GW. The 2027 auction lands squarely in this window. The previous centralised round in 2024/2025 was a cold market (zero bids in some lots), forcing the government to rework the auction mechanism (two-sided Contracts for Difference, negative-price protection). Market sentiment is now recovering.
For broader context on the regional supply chain and policy backdrop, see our European grid expansion and transformer industry coverage archive.
#### 2.2 Infrastructure Readiness On the infrastructure side:
- **Sea area**: Both the North Sea and the Baltic Sea have planned sites available.
- **Grid connection**: TenneT, 50Hertz and Amprion are accelerating 2 GW HVDC converter station construction.
- **Port facilities**: Cuxhaven, Bremerhaven and Wilhelmshaven already host dedicated offshore wind terminals.
#### 2.3 Equipment Demand Estimate For a 3 GW single project with a 220/66 kV step-up chain, the $3.6 B MoU alone implies, over the next 3-5 years, demand for 6-10 large 220 kV or 245 kV power transformers, plus 30-40 66 kV array-string transformers.
3. Substations and Transformers: The Most Expensive “Small Box” in a Wind Farm
#### 3.1 Typical Configuration Parameters Across RWE and Masdar’s existing projects, substations typically use the following configuration:
For an industry perspective on enameled wire selection for wind turbine motor windings, this external coverage outlines conductor selection criteria relevant to the windings inside wind turbine generators and step-up transformers.
| Equipment | Typical spec | Quantity (3 GW project) |
|---|---|---|
| Offshore main platform | 220 kV / 245 kV, three-phase 400-700 MVA | 2-3 units |
| Array-string transformer | 66 kV dry/oil-immersed, 10-15 MVA | 25-35 units |
| Onshore collector main transformer | 380 kV, 800-1200 MVA | 2-3 units |
| HVDC valve-side reactor / converter transformer | ±525 kV, > 300 MVA | Depending on transmission distance |
#### 3.2 Dogger Bank South as a Reference Dogger Bank South uses three offshore platforms for 3 GW (1.2 GW each). The main transformers are 245 kV three-phase units at approximately 720 MVA per group. This scale directly tightens the global order book for 220-245 kV step-up transformers.
#### 3.3 Order Release Timing For equipment manufacturers, the auction-to-energisation window of 2027 to 2030/2031 means orders will concentrate in 2026Q4-2027Q2. This stacks on top of recent coverage such as PTSC Baltica 2 (4 platforms delivered on 14 September 2026) and East Anglia THREE (95 foundations installed in August 2026), forming a continuous demand wave.
4. Synergy with the Parallel LNG Letter of Intent
#### 4.1 Dual-Track Strategy A detail worth noting: on the same day, RWE Supply & Trading and ADNOC also signed a Letter of Intent covering potential long-term LNG supply arrangements for Germany, Europe and Asian markets from the early 2030s onward.
This means RWE’s energy portfolio is a **wind-primary, LNG-peaking** dual track. The inherent variability of wind (no-wind days) requires flexible back-up, and LNG is currently the most realistic option.
#### 4.2 Indirect Pull on Electrical Equipment Indirect implications for the transformer and reactor supply chain include:
- Coastal LNG terminals require 110-220 kV main transformers for supply.
- Peaking plant step-up transformer demand increases.
- Offshore wind + LNG dual-track projects may bundle EPC tenders, enlarging individual order size.
5. European Supply Chain Under Pressure
#### 5.1 Main Transformer Lead Times Germany does not produce 220-245 kV large power transformers domestically. Key suppliers sit in Austria (Siemens Energy), Switzerland/Germany (ABB / Hitachi Energy), Italy (Trench / Italtrafo), and Asia (Turkey, Indonesia, leading Chinese plants).
European main-transformer lead times have now stretched to 3-4 years (comparable with the 2-3 year tension in North America). This implies:
- Even if the 2027 auction is won, main-transformer contracts need to be locked in immediately.
- Price negotiation windows are narrowing (a seller’s market).
- Capacity expansion in the short term is constrained (copper, grain-oriented electrical steel, and insulating oil are all tight).
#### 5.2 Impact on Winding Wire and Insulation Materials For winding wire and insulation material suppliers:
- Windings above 220 kV use **continuously transposed conductors (CTC)** and **interleaved copper strips**.
- Insulation systems are shifting toward **ester-based fluids (natural or synthetic esters)**.
- Dry-type bushings and resin-impregnated synthetic (RIS) systems are replacing some porcelain bushings.
- A single 700 MVA main transformer consumes around 30-50 tonnes of winding copper.
6. Outlook: What Happens After the MoU
#### 6.1 Historical Reference Points An MoU is not a contract. Looking at the historical record:
- London Array: negotiations 2008-2010, energisation 2013.
- Dogger Bank South: negotiations 2019-2020, expected energisation 2028-2029.
If a 2027Q1 auction bid is successful, EPC tenders will concentrate in 2027H2-2028H1. Procurement of critical equipment such as transformers and offshore platforms must be completed by mid-2027.
#### 6.2 Key Milestones to Watch Several milestones deserve attention:
- 2026Q4: amendment of the German Offshore Wind Act (Federal Parliament vote).
- 2027Q1: auction launch + pre-qualification.
- 2027Q2: award announcement.
- 2027Q4-2028Q1: EPC tenders.
When we look back at this $3.6 B MoU, that is when we will know whether it was a real move or a ceremony on paper.
**Sources**: Transformer Magazine, 15 September 2026, “RWE and Masdar target $3.6 B offshore wind”; public data from the London Array project archive, the UK AR7 CfD award list, and the Bundesnetzagentur 2024 offshore wind auction records.