Gennaker's $3.5bn close shows private debt still trails public capital

Skyborn Renewables has reached financial close on more than $3.5 billion for Gennaker, a 976.5MW offshore wind farm in the German Baltic Sea about 15 kilometres north of the Fischland-Darß-Zingst peninsula, whose 63 turbines are projected to generate roughly 3.8 terawatt-hours a year — enough, by the company's reckoning, to supply approximately a million households — and whose commercial operations are scheduled to begin by the end of 2028; once built, it is expected to become the largest offshore wind installation in the Baltic Sea region. The construction and operating permit is issued, the supply and installation agreements are signed, and power purchase agreements are in place. What the money buys, beyond steel and cable, is the clearest read yet on who will underwrite offshore wind construction in Europe at this size.

Roughly $2.5 billion of the package is non-recourse debt arranged by a consortium of 16 commercial lenders working alongside the European Investment Bank, with recourse running to the project and its future cash flows and no further; sixteen banks underwriting the construction phase is the figure to hold onto, because the commitment was made before the turbines turn and before any revenue arrives at the meter.

This publication has argued that public capital takes the transition's riskiest corner, with private money following only after the state has absorbed construction and policy risk. Gennaker complicates that framing and confirms it in the same breath. The EIB sits inside the syndicate rather than beneath it; the coverage describes no first-loss tranche or guarantee that would make the development bank the absorber of first resort, and 16 lenders sharing exposure is a different structure from a public institution standing alone under a project. Where the public balance sheet does take pre-operational risk is on the equity side.

Stadtwerke München has joined as a strategic equity partner with a 25% interest, putting a German municipal utility on the shareholder register before construction begins — durable capital with a holding period measured in decades rather than in a fund's life, and a position that moves part of the construction-overrun risk onto a public owner. The coverage does not state the price paid for the stake.

The sequence that produced the close ran backwards from the banks: Skyborn finalised its major supply and installation packages during 2025 — foundations, the inter-array cable network and the wind turbine generators — and awarded delivery and offshore work to Boskalis, Dajin Heavy Industry, EEW Special Pipe Constructions, Fred. Olsen Windcarrier, Seaway 7, Siemens Gamesa Renewable Energy and TKF. The project then obtained its construction and operating permit from Mecklenburg-Western Pomerania's state office for agriculture and environment, clearing a critical regulatory condition, before the central debt, equity, supply and installation agreements closed together. Contractors fixed before lenders, permit before close — that is the order in which a non-recourse syndicate of this width becomes signable.

The revenue side is contracted but thinly described: the report states that power purchase agreements and other strategic partnerships are in place without naming counterparties or terms, and a related article carried alongside it links Amazon and Skyborn to a PPA billed as Germany's largest for a Baltic offshore wind farm, though the reporting does not say whether that contract covers Gennaker's output. The same related headline describes Skyborn as BlackRock's; in offshore wind the offtake contract is the revenue backstop, and Amazon has become a fixture on the other side of those contracts, as the August coverage of its four Swedish wind PPAs showed. Without the tenor or the price of Gennaker's agreements, the lenders' confidence is visible while its basis is not.

Absent from the financing description is any green bond, sustainability-linked tranche or labeled instrument; the $2.5 billion was raised as ordinary non-recourse project debt, priced against contracted cash flows and a fixed contractor list. Transition capital has been migrating from labels to project-level risk, and Gennaker is the migration in practice — the sustainable-investment story here is a bank credit committee's view of construction risk, not an investor's view of a label.

Gennaker is a well-sequenced asset rather than evidence that private capital has re-rated offshore wind construction. The conditions under which the 16 lenders signed were specific: a development bank in the syndicate, a municipal utility on the register, a fixed supply chain, an issued permit and a contracted offtake, every one settled before the money moved — which says as much about the market's depth as about Skyborn's development discipline. The spread on the next German Baltic project to reach close without a public lender beside the banks and without a public utility taking equity is the number that will show whether this structure travels or stays a one-off. That deal is not in evidence yet.

Skyborn retains construction management and stays on for operations, leaving the execution phase with the 16 lenders who priced it. Patrick Lammers, the company's chief executive, called the close the moment when 'years of development, partnership building and preparation come together.' For the 16 lenders, what remains to be seen until commercial operations begin at the end of 2028 is whether that preparation was priced correctly.