Acciona Energy agrees to sell a solar and wind portfolio in the U.S. and Mexico for €855M
Madrid / 2025-12-17 – Acciona Energy has agreed to divest a strategic portion of its Americas portfolio in a transaction valued at roughly US$1.0 billion (≈€855 million). The portfolio includes about 1.3 GW of operational photovoltaic capacity in the United States and 321 MW of wind power in Mexico.
According to the company update and sector press coverage, the deal brings an institutional infrastructure investor into the assets —reported in several outlets as MIP (Macquarie Infrastructure Partners)— acquiring a minority stake (reports indicate approximately 49%). The transaction underscores a broader trend: developers monetizing mature, operating renewable assets to free capital for new development and grid-integration projects.
Technical and valuation highlights
- Aggregate capacity: ~1,300 MW solar (U.S.) + 321 MW wind (Mexico) = ~1,621 MW total.
- Reported transaction value: ~US$1.0bn (≈€855M).
- Implied headline metric (simple division): ≈€855M / 1,621 MW ≈ €527,000 per MW (≈€527 per kW) — an indicative figure combining different technologies and risk profiles.
- Asset profile: operating plants with contracted offtake and grid connections, attractive to infrastructure buyers seeking predictable cash flows.
Market context and corporate logic
The move aligns with Acciona's ongoing portfolio rotation: financial press notes the company has accelerated renewable divestments recently, tallying around €2.4 billion in disposals in the cited period. Selling minority stakes to infrastructure funds allows operators to retain operational control while deleveraging and preserving balance-sheet capacity for higher-return development opportunities such as storage, hybridization, or early-stage projects.
For buyers like MIP, the appeal is immediate exposure to operating renewables with established revenue streams and potential O&M and portfolio synergies.
Environmental impact and ROI
- Environmental footprint: the assets contribute to avoided CO2 emissions by displacing fossil generation; as operating units, their climate benefit is immediate and measurable through generation profiles and local emissions factors.
- ROI considerations: a US$1bn price tag for a meaningful minority stake in operating assets indicates robust valuations in secondary markets for renewables, driven by yield-seeking infrastructure capital and the relative stability of cash flows compared with other infrastructure classes.
Risks and conditions
Per corporate communications, the transaction remains subject to customary closing conditions and regulatory approvals in respective jurisdictions. Key risks include electricity price fluctuations, regulatory changes (notably in Mexico), and the technical and contractual integration of a new investor into operating assets.
Conclusion
This sale is emblematic of a maturing renewables market: institutional capital is willing to pay premiums for operating generation while developers recycle capital to fund the next wave of projects. The deal deepens investment in stable, decarbonizing infrastructure and highlights a pragmatic route to scale renewables without compromising returns.
Sources: Acciona company update, Infobae, SolarQuarter, Cinco Días and industry coverage.
