Octopus Renewables Infrastructure Trust is paying about £34.6 million for a solar farm east of Leeds that is already under construction. The price includes the build cost still to come. Whether that is cheap turns on which of the project's two capacity ratings you divide by, and on a contract signed in September 2023 that the deal is conditioned on.
Key takeaways
- Octopus Renewables Infrastructure Trust has agreed to acquire the Barnsdale solar project in West Yorkshire from OnPath Energy, a Brookfield-owned developer, for about £34.6 million, or $45.80 million, including remaining construction costs.
- Barnsdale is rated 55 MWdc on its panels and 40 MWac at its grid connection, so the same consideration works out at $0.83 million per MW on the panel rating and $1.15 million per MW on the export rating.
- The project holds a Contract for Difference awarded in September 2023 under the UK's fifth allocation round at a 2012 strike price of £47.00 per MWh, with a stated delivery year of 2025/26, while commercial operations are expected in March 2027.
- Completion of the acquisition is expected in March 2027 and is conditional on the project meeting the relevant requirements ahead of its CfD commencement deadline.
- Enerdatics records 96 UK solar M&A transactions since the start of 2024, of which 24 carry a disclosed value, and only three priced construction-stage asset deals: $1.11 million, $0.87 million and $0.86 million per MW.
What is Octopus actually buying at Barnsdale?
A half-built solar farm on 87.3 hectares of agricultural land between Kippax and Allerton Bywater, with panels covering about 55 percent of the site under a Leeds City Council consent granted in October 2021. GOLDBECK SOLAR is the construction contractor, the grid connection through the nearby Ledston Primary substation is targeted for the end of 2026, and commercial operations are anticipated in March 2027. OnPath Energy continues to manage the site until then, which is the part of the structure doing the work: the seller carries delivery through to completion. Once running it should generate 51 GWh a year, enough for up to 19,000 homes. That is 927 MWh per MW of panels per year, a load factor of 10.6 percent, which is ordinary for British solar and explains why the panels are oversized relative to the connection.
Why does a 2023 contract decide whether the deal completes?
Because the CfD is most of what Octopus is buying, and the CfD has a clock on it. A Contract for Difference guarantees a generator a fixed strike price for its output, with the counterparty paying the shortfall when market prices sit below that level and reclaiming the excess when they sit above, which removes wholesale price risk for the term. Barnsdale won one in September 2023 in the fifth allocation round at £47.00 per MWh in 2012 prices. The record states a delivery year of 2025/26, and commercial operations are expected in March 2027. A delivery year is when the contract is scheduled to start paying, not a deadline for building the plant, and a project that misses it has to satisfy the scheme's commencement requirements to keep the contract alive. The gap between a 2025/26 delivery year and a March 2027 commissioning date is why the acquisition is conditional on those requirements rather than on construction alone. The consideration also includes the construction costs still to be spent, so Octopus has written the risk it cannot control into the condition rather than into the price.
Does £34.6 million make Barnsdale cheap or expensive?
It depends on the denominator, and Barnsdale has two. Solar projects carry a panel rating in MWdc and an export rating in MWac, and developers routinely install more panels than the connection can export because the panels reach full output only a few hours a year. Barnsdale is 55 MWdc against 40 MWac, a ratio of 1.38. On the panel rating the deal prices at $0.83 million per MW. On the export rating, which is what the grid and the CfD actually see, it prices at $1.15 million per MW. The same £34.6 million produces a figure 38 percent higher.
Against the market the two readings land in different places. Enerdatics' record holds three priced construction-stage UK solar asset deals since the start of 2024. Alpha Real Capital paid $206.75 million for 186.58 MW in March 2025, an implied $1.11 million per MW. The same buyer paid $28.8 million for the 33 MW Whinfield project in June 2024, an implied $0.87 million per MW. ISG Renewables paid $21.6 million for the 25 MW Newbold Pacey park in May 2024, an implied $0.86 million per MW. On its panel rating Barnsdale is the cheapest of the four. On its export rating it is the dearest. Neither statement is wrong, which is the point: a UK solar price quoted without its rating basis is close to meaningless.
Enerdatics records 96 UK solar M&A transactions since the start of 2024, of which 24 carry a disclosed value, so three quarters of the market prices in private. One of those marks belongs to the buyer's own group: in December 2025 Tokyo Century Corporation acquired 49 percent of a 113 MW operational solar and wind portfolio from Octopus Energy for $86.80 million, a figure Enerdatics identified despite no public disclosure by either party. Grossed up to 100 percent that is $1.57 million per MW for operating assets. Selling operating capacity at that level and buying construction-stage capacity at $0.83 million to $1.15 million per MW is the trust's capital recycling programme expressed in numbers.
What does the deal signal for UK solar?
The deal signals that the handover point for British solar has settled at mid-construction, provided a CfD is attached, and that buyers will absorb the remaining build cost to get there. Octopus is stepping in while the contractor is on site, paying an all-in price, and leaving the seller to finish. The same pattern runs through Triple Point's purchase of the 49.2 MW Hessay project with its CfD won and construction underway and through Capital Dynamics buying 63 MW of CfD-covered Hampshire solar before build. Contracted revenue is what clears these transactions. Execution risk is negotiable.
For sellers the read is equally clear. OnPath Energy, which has previously funded UK construction through bank facilities arranged with NatWest, will put the proceeds into a pipeline it plans to back with about £1 billion over five years across England, Scotland and Wales. Barnsdale itself was likely financed from the £120 million corporate facility OnPath secured in October 2024 from NatWest, Barclays, DNB and CIBC, on Enerdatics' assessment. Recycling one completed project into several new ones is faster than holding it, and while construction-stage buyers keep arriving with all-in cheques, that will stay the better trade.
Frequently asked questions
How much is Octopus paying for the Barnsdale solar project?About £34.6 million, or $45.80 million, including remaining construction costs. That is $0.83 million per MW on the 55 MWdc panel rating and $1.15 million per MW on the 40 MWac export rating.
What is a Contract for Difference?A Contract for Difference guarantees a generator a fixed strike price, with the counterparty paying the difference when market prices fall below it and reclaiming the excess when they rise above. Barnsdale's was awarded in the UK's fifth allocation round in September 2023 at a 2012 strike price of £47.00 per MWh.
When will the Barnsdale acquisition complete?Completion is expected in March 2027, in line with anticipated commercial operations, and is conditional on the project meeting the relevant requirements ahead of its CfD commencement deadline. The grid connection is targeted for the end of 2026.
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