Norges Bank has taken 49 percent of Portugal's largest wind farm and no price was given. Three times before, the same two parties did the same thing and put a number on it. Those three numbers are the only guide there is, and they do not point where you would expect.
Key takeaways
- Norges Bank Investment Management agreed on 2 November 2026 to acquire a 49 percent stake in the 273.6 MW Tamega wind complex in northern Portugal from Iberdrola, with no consideration disclosed and Iberdrola retaining 51 percent and the operating role.
- Enerdatics records four Norges Bank acquisitions from Iberdrola since January 2023 totalling 2,856.6 MW of Iberian renewables, of which three disclose a consideration, together worth $1.20 billion for the 49 percent stakes.
- The January 2023 tranche priced 1,265 MW of Spanish solar and wind at an enterprise value of about $1.29 billion for 100 percent, or $1.02 million per MW, and the January 2024 tranche priced 674 MW at $683 million, or $1.01 million per MW.
- The April 2024 tranche, the alliance's only all-solar portfolio, went for $217.11 million for 49 percent of 644 MW, which grosses up to about $443 million for 100 percent, or $0.69 million per MW, about a third below the two mixed portfolios.
- Tamega is the alliance's first all-wind tranche and the first to arrive carrying project-level debt, a 175 million euro European Investment Bank green loan signed in January 2026.
What has the alliance actually assembled since 2023?
Four portfolios, 2,856.6 MW of nameplate, and the same structure every time.
It began in January 2023 with 1,265 MW of Spanish solar and onshore wind, 80 percent solar, for $649.82 million. January 2024 added 674 MW across Spain and Portugal, 60 percent solar, for $334.68 million, the alliance's first Portuguese exposure. April 2024 added a 644 MW Spanish solar portfolio for $217.11 million. Tamega is the fourth. Each time Norges Bank took 49 percent and Iberdrola kept 51 percent and the operating role.
Set that against what the partners said they would do. In January 2024 they described a joint commitment of more than $2 billion over three years to add 1.3 GW in Iberia and reach 2.6 GW between them. On Enerdatics' records the four tranches now total 2,856.6 MW, so the programme has passed the figure it set itself, roughly on the stated timetable.
One counting caution. The 644 MW Spanish solar portfolio agreed in April 2024 is the same capacity later described as folded into the joint venture during 2026, once Caparacena and Ciudad Rodrigo had started operating. That is one tranche at two stages, not two tranches. The gap is structural: Norges Bank takes ownership only once projects are operating, so portfolios agreed years earlier arrive later.
Why did the all-solar tranche price lowest?
Because a megawatt is worth what it produces, and solar produces less of the year than wind.
Value per MW tracks output, not plate. Iberian onshore wind runs at a materially higher load factor than Spanish solar, so a megawatt of wind earns more over a year and is priced accordingly. The two mixed portfolios bear that out. At 80 percent solar the 2023 portfolio priced at $1.02 million per MW, and at 60 percent solar the 2024 portfolio priced at $1.01 million. The all-solar portfolio came in at $0.69 million, about a third lower than either.
What is not driving the gap is development risk. In both 2023 and 2024 Norges Bank agreed to assume ownership only after the projects began operating, so the enterprise values were struck on finished assets rather than on pipeline, and neither transaction involved external debt. These are operating-asset marks with a delayed handover, which is what makes them usable as comparables at all. Enerdatics recently covered a 49 percent French stake bought on much the same structure. Tamega sits at the opposite end of the mix from the cheapest tranche: 100 percent wind, 601 GWh a year from 273.6 MW, and already running.
What do those three marks imply for an undisclosed fourth?
A range, and a direction within it.
At $1.02 million per MW, the top of the alliance's priced range, 273.6 MW implies about $279 million for 100 percent and roughly $137 million for the 49 percent stake. At Tamega's disclosed build cost of about 350 million euros, or $1.32 million per MW, the same arithmetic gives about $361 million and roughly $177 million. Both are inferences from Leap records, not reported numbers.
The direction argues for the upper half. Every factor that separated the expensive tranches from the cheap one points the same way here: all wind rather than all solar, operating rather than awaiting completion, a long-term contract over most of its output, and a lender willing to put a green loan against it. The one argument for restraint is that this is a minority stake in a single site rather than a diversified portfolio. Undisclosed prices on assets of this profile are now unremarkable, as Enerdatics found when Masdar bought Greece's largest single-site solar project without a price.
Enerdatics records the alliance's full arc in numbers. Four transactions since January 2023, 2,856.6 MW of Iberian nameplate, $1.20 billion of disclosed consideration for the 49 percent stakes, and about $1.97 billion of enterprise value across the two tranches that stated one for 100 percent. Three of the four were priced. The fourth, and the most recent, was not.
What does the deal signal for Iberian asset rotation?
It signals that Iberdrola has turned asset rotation into something closer to a standing facility than a sale process. Sell 49 percent, keep control and the operating contract, recycle the proceeds into the next build, go back to the same counterparty. Four times in under four years with one buyer removes the auction, the marketing period and most of the execution risk.
For Norges Bank the attraction is scale without competition, and the relationship runs deeper than the assets. The fund has been one of Iberdrola's largest shareholders for more than seven years at about 2.3 percent, so it owns both the parent and minority positions in the parent's projects. The thing to watch is disclosure. The first three tranches carried a consideration and this one did not, which makes the alliance harder to benchmark each time it transacts. For the asset-level case on Tamega itself, including what it gains from sharing a grid connection with Iberdrola's pumped storage plants, Enerdatics set that out in a separate analysis of the complex.
Frequently asked questions
How much did Norges Bank pay for 49 percent of Tamega?No consideration has been disclosed. The alliance's three earlier priced tranches imply a range of roughly $137 million to $177 million for the stake, depending on whether the complex is valued at the top of the alliance's own range or at its build cost. Both figures are inferences, not reported numbers.
How many times has Norges Bank bought from Iberdrola?Four, on Enerdatics' records: 1,265 MW in January 2023, 674 MW in January 2024, 644 MW in April 2024 and 273.6 MW in November 2026, totalling 2,856.6 MW. Each was a 49 percent stake with Iberdrola retaining 51 percent and operatorship.
Why do the alliance's portfolios price so differently per MW?Mainly technology mix. The all-solar portfolio priced at about $0.69 million per MW while the two solar and wind portfolios priced near $1.02 million, because a megawatt of Iberian wind generates more over a year than a megawatt of Spanish solar.
Enerdatics records every tranche of a rotation programme with its consideration, its technology split and its enterprise value, which is how an undisclosed price turns into a bounded range. Browse more analysis in the Enerdatics insights archive.
