In June 2023, Interogo Holding agreed to buy 49% of Bruc's 1,066 MW solar portfolio in Spain. Enerdatics understands the transaction value to be $647 million. Whether that is a full price or a modest one depends on a detail that is easy to miss.
Key takeaways
- Interogo Holding agreed on 14 June 2023 to acquire a 49% stake in Bruc Management's 1,066 MW solar portfolio in Spain, made up of operating and under-construction plants.
- Enerdatics understands the transaction value to be $647.38 million.
- If that figure is the price of the 49% stake, it implies about $1.24 million per MW for the whole portfolio, and if it is a 100% valuation, about $0.61 million per MW.
- Interogo invested through its infrastructure fund, Inter Infrastructure Capital, managed by Inter Fund Management S.A., and joins OPTrust and the Universities Superannuation Scheme as shareholders in the wider Bruc group.
- Banco Santander and J.P. Morgan advised Bruc on the financial side, with Linklaters as legal adviser, while IH Infrastructure Advisors and Herbert Smith Freehills advised Interogo's fund.
What did Interogo buy?
A large minority stake in one of Spain's bigger solar portfolios. The portfolio totals 1,066 MW and mixes plants already operating with plants still under construction. Interogo's stake sits at asset level, meaning it owns part of the portfolio directly rather than part of Bruc as a company.
Bruc keeps the majority. The 51% that remains stays inside the Bruc group, whose existing shareholders are OPTrust, a Canadian pension plan, and the Universities Superannuation Scheme (USS), a UK pension scheme. Interogo becomes the third institutional investor alongside them.
The buyer is less familiar than the sellers. Interogo invested through Inter Infrastructure Capital (IIC), its infrastructure fund, which is managed by Inter Fund Management S.A. Enerdatics' record describes the deal as a significant minority investment that strengthens Bruc's financial position.
Why does the stake size change the price so much?
Because the price per MW only makes sense if the money and the megawatts describe the same thing. A stake of 49% buys a claim on 49% of the portfolio, not all of it.
If $647.38 million paid for 49%, the full portfolio is worth roughly $1.32 billion. Divided by 1,066 MW, that is about $1.24 million per MW. If instead $647.38 million is a valuation of the whole portfolio, the figure falls to about $0.61 million per MW. The first would be a full price for Spanish solar. The second would be one of the cheapest large deals of the period.
This is a common trap in renewable M&A. Dividing a minority consideration by total capacity understates the price roughly in proportion to the stake. For a 49% stake, the error is about half. Enerdatics' benchmarking grosses minority stakes up to 100% before comparing them, which is why the stake definition matters here.
The mix of assets matters too. Part of the 1,066 MW was still under construction. Plants that are not yet built usually trade below operating ones, because the buyer still carries construction risk and in some cases construction cost.
How does the price compare with other Spanish solar deals?
Enerdatics' data shows 31 Spanish solar M&A transactions with a disclosed value across 2022 and 2023. Most were development or construction deals, which price far lower per MW. Among the fully priced operating deals, headline figures clustered around $1 million per MW. Eni paid $131.4 million for 96 MW from Helios Energy in July 2023, about $1.37 million per MW. Renewable Japan paid $40 million for 40 MW from Sunco Capital, about $1.00 million per MW, and $40.95 million for 37.83 MW from Global Dominion, about $1.08 million per MW.
The same dataset shows how easily partial stakes distort the picture. In March 2022, TRIG paid $130.2 million for a 49% stake in Repsol's 264 MW Valdesolar plant. Divided by the full 264 MW, that looks like $0.49 million per MW. Grossed up to 100%, it is about $1.01 million per MW, in line with the other operating deals.
Against that range, the grossed-up Bruc figure of $1.24 million per MW sits within market levels for a large portfolio. The $0.61 million reading would look like the same arithmetic error. That makes the grossed-up reading the more plausible one, though the record does not settle it.
Why sell a minority stake rather than the whole portfolio?
Because a minority sale raises capital without giving up control. Bruc keeps running the portfolio and keeps the majority of its cash flows. The new money strengthens the balance sheet, which supports further construction and development.
For the buyer, a minority stake alongside established pension investors is a way into Spanish solar without building an operating team. Interogo gets exposure to a large, partly contracted portfolio with a proven manager. The trade-off is limited control over decisions such as refinancing or selling.
Deals like this are typically structured with governance rights for the minority holder, such as vetoes on major decisions. The Bruc record does not disclose those terms. It does state the deal was subject to regulatory approvals and customary closing conditions.
What does the deal signal for Spanish solar?
It signals continued demand from long-term institutional capital for operating solar in Spain, even after the fast price rises of 2021 and 2022. Pension funds and family investment vehicles were still willing to commit hundreds of millions of dollars to minority positions.
It also shows why headline values need care. Spanish solar deals often involve partial stakes, construction assets and portfolios that mix both. A single dollar figure can describe very different prices. Comparable deals such as Verbund's purchase of EDPR's Spanish wind farms show how much of a valuation depends on what exactly is being bought.
Frequently asked questions
How much did Interogo pay for its stake in Bruc's portfolio?Enerdatics understands the transaction value to be $647.38 million for a 49% stake in Bruc's 1,066 MW Spanish solar portfolio.
What is the price per MW?If the $647.38 million covers the 49% stake, the implied value is about $1.24 million per MW for the full portfolio. If it covers 100%, it is about $0.61 million per MW. Comparable operating solar deals in Spain suggest the first reading is more likely.
Who else owns Bruc?OPTrust and the Universities Superannuation Scheme are existing shareholders in the wider Bruc group. Interogo joins them at the level of the solar portfolio.
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