Iberdrola Acquires Finland’s Caruna in €5 Billion Deal
Iberdrola has agreed to acquire an 80% stake in Caruna, Finland’s largest electricity distribution company.
Key Points
- Iberdrola has agreed to acquire an 80% stake in Caruna, Finland’s largest electricity distribution operator, in a transaction valuing 100% of the company at around €5 billion including financial debt.
- The 80% equity stake costs about €2 billion, of which €1 billion is deferred until 30 months after closing. Enterprise value includes €2.47 billion of net debt as of December 2025.
- Sellers KKR and Ontario Teachers’ Pension Plan each hold 40%. Nordic pension funds AMF (12.5%) and Elo (7.5%) are expected to retain their existing stakes alongside Iberdrola, provided they do not exercise their tag-along rights.
- Caruna serves 740,000 supply points covering about 1.5 million people, more than 20% of Finland’s population, across roughly 89,300 km of network under a perpetual concession.
- Iberdrola puts the implied 2027 transaction multiple at about 16x earnings against its own trading multiple of about 20x, and expects the deal to be accretive to earnings per share from year one. Closing is expected in Q1 2027.
Deal Overview
Iberdrola announced on 21 July 2026 that it has reached an agreement to acquire Caruna, Finland’s leading electricity distribution company, in a transaction valuing 100% of the business at around €5 billion including its financial debt.
The Spanish utility is buying an 80% stake for a payment of about €2 billion. The two selling shareholders are KKR and Ontario Teachers’ Pension Plan, which each held 40% of the company. Nordic pension funds AMF and Elo are expected to keep their existing holdings of 12.5% and 7.5% respectively, provided they do not exercise their tag-along rights, leaving Iberdrola with two local partners in the post-transaction structure.
Iberdrola notes that its 80% figure assumes the minority shareholders do not exercise their tag-along rights between signing and completion. If either of them does, Iberdrola will acquire that stake as well.
The transaction marks Iberdrola’s entry into Finland, a market it has not previously operated in. The group already runs around 1.4 million km of electricity networks across the United States, the United Kingdom, Brazil and Spain.
Transaction Terms
The headline enterprise value of about €5 billion includes €2.47 billion of net debt as of December 2025. On the equity side, half of the roughly €2 billion consideration is deferred: €1 billion is payable 30 months after closing.
Iberdrola frames the pricing against its own valuation. The company puts the implied 2027 transaction multiple at about 16 times earnings, compared with Iberdrola trading at roughly 20 times, and expects the acquisition to be accretive to earnings per share from the first year. It also describes the purchase as recycling capital from its recent divestment of thermal power plants in Mexico, and says headroom in its credit ratios accommodates the acquisition of a fully regulated business with stable cash flows.
| Term | Details |
|---|---|
| Stake acquired | 80% of Caruna |
| Equity consideration | c. €2 billion, of which €1 billion deferred 30 months post-closing |
| Enterprise value (100%) | c. €5 billion, including €2.47 billion net debt as of Dec 2025 |
| Sellers | KKR (40%) and Ontario Teachers’ Pension Plan (40%) |
| Retained shareholders | AMF (12.5%), Elo (7.5%) |
| Implied 2027 P/E | c. 16x, against Iberdrola trading at c. 20x |
| Earnings impact | EPS accretive from year 1 |
| Signing date | 21 July 2026 |
| Expected closing | Q1 2027, subject to customary regulatory approvals |
Caruna at a Glance
Caruna is Finland’s largest distribution system operator, serving 740,000 supply points that cover about 1.5 million people, more than 20% of the country’s population. That represents 21% of Finland’s electricity supply points in a market that Iberdrola describes as highly fragmented, with 77 distribution network operators in total.
The network runs to approximately 89,300 km of lines, around 67% of which is underground, and the company employs 247 people. It operates through two distribution concessions in the Helsinki area, the Joensuu region, and other parts of western and north-eastern Finland, and its concession term is perpetual. Iberdrola highlights strong industrial activity in those areas along with growing demand from new data centres and residential development.
Regulated Asset Base (RAB)
The value of a regulated network operator’s assets as recognised by its regulator. It is the base on which the operator is permitted to earn a regulated return, so RAB growth, driven by capital investment in the network, is the primary earnings driver for a distribution business.
| Metric | Figure |
|---|---|
| Regulated asset base (2027E) | €2,536 million |
| Points of supply | 740,000 (c. 1.5 million people) |
| Network length | c. 89,300 km, c. 67% underground |
| Employees | 247 |
| Concession term | Perpetual |
| EBITDA (2027E) | €369 million |
| Net income (2027E) | €148 million |
| Net debt (2025) | €2.47 billion |
Iberdrola notes that Caruna’s operating and financial metrics are based on company estimates.
Strategic Rationale
The purchase is presented as another step in a portfolio shift towards fully regulated network assets. Iberdrola pairs it explicitly with the recent sale of its thermal power plants in Mexico, casting the two moves together as recycling capital from the thermal business into higher-quality regulated growth.
— Ignacio Galán, Executive Chairman, Iberdrola“This transaction reinforces our strategic commitment to electricity networks as essential infrastructure for promoting energy security, self-sufficiency and competitiveness.”
The second part of the rationale is country selection. Finland carries an AA+ sovereign credit rating, sits inside the euro zone, which Iberdrola highlights as delivering stable cash flows in euros, and has a regulatory framework with visibility to 2031.
— Ignacio Galán, Executive Chairman, Iberdrola“Finland offers high credit quality and a predictable and attractive regulatory framework, while Caruna has strong growth prospects due to the need for networks linked to new renewable generation, rising demand from the industrial and residential sectors and the electrification of the economy.”
Iberdrola’s investor presentation makes the point that the appeal is the investment runway rather than the assets in place today.
— Iberdrola, Acquisition of Caruna investor presentation, July 21, 2026“We are not simply acquiring today’s RAB: we are acquiring a platform for regulated growth in Finland.”
Regulation and Growth Outlook
Finland’s current regulatory period runs to 2031 and offers a return on equity of around 8%. Against that backdrop, Iberdrola expects Caruna to grow its earnings and asset base by around 7% a year, supported by annual investment of between €200 million and €300 million to reinforce and digitalise the network. The presentation puts the same roughly 7% net income growth rate on a longer horizon, out to 2035.
Distribution System Operator (DSO)
The company responsible for operating and maintaining the local electricity network that delivers power from the high-voltage transmission grid to homes and businesses. DSOs typically earn a regulated return rather than taking exposure to wholesale power prices.
Iberdrola sees scope for that investment level to rise. It points to the electrification of the economy, the expansion of data centres, and the build-out of transmission infrastructure, which Finnish regulation has allowed distribution companies to undertake since the beginning of 2026. Fingrid, the Finnish system operator, expects national electricity demand to increase by 22% to 45% by 2030.
Iberdrola also frames the purchase as a platform rather than a static asset. It describes Finnish distribution as a highly fragmented market served by 77 distribution network operators, within which Caruna’s 21% share of supply points makes it the largest single operator.
Timeline and Conditions
The transaction was signed on 21 July 2026. Iberdrola’s indicative schedule sets a mid-August 2026 deadline for submitting regulatory applications, with the approvals period running to December 2026 and closing anticipated in the first quarter of 2027. All dates after signing are indicative.
Completion is subject to obtaining the customary regulatory approvals for a transaction of this type. The deferred €1 billion payment falls due 30 months after closing.
| Milestone | Indicative date |
|---|---|
| Transaction signing | 21 July 2026 |
| Deadline for regulatory applications | Mid-August 2026 |
| Regulatory approvals period | To December 2026 |
| Closing | Q1 2027 |