Why is Enel selling a 416 MW Chilean solar portfolio to Sonnedix for $550m and what does it mean for renewable energy in the region?

Enel Chile agrees to sell a 416 MW solar portfolio in northern Chile to Sonnedix for US$550 million, cutting debt and reshaping its renewable strategy.

Enel S.p.A., the Italian multinational energy developer, and its Santiago-based subsidiary Enel Chile S.A. have signed a binding agreement with global renewable energy producer Sonnedix for the sale of a 416 megawatt photovoltaic portfolio in northern Chile. The deal, valued at US$550 million (approximately €504 million), covers four operational solar plants located in the Atacama and Antofagasta regions and is subject to clearance from Chile’s antitrust regulator, the Fiscalía Nacional Económica (FNE).

What is included in the Chilean photovoltaic portfolio Enel is selling to Sonnedix for US$550 million?

The portfolio consists of the Diego de Almagro, Carrera Pinto, Pampa Solar Norte, and Domeyko plants, all held through Arcadia Generación Solar S.A. Enel owns around 0.009 percent of Arcadia, while Enel Chile holds the remainder. Together, these sites have a combined installed capacity of roughly 416 megawatts and produce about 1 terawatt-hour of net electricity annually. Each project operates under Chile’s grid and benefits from the region’s exceptional solar irradiance.

Diego de Almagro, a 36 MW facility commissioned in 2014, was among the early utility-scale PV projects in Chile’s solar build-out. Carrera Pinto, with 97 MW, and Pampa Solar Norte, with 79 MW, both began generating in 2016, contributing to the country’s mid-decade surge in solar capacity. Domeyko, the newest and largest plant at 204 MW, entered service in 2022, giving the portfolio a balanced mix of mature and recently commissioned assets.

How does this transaction fit within Enel’s strategy to optimise its asset portfolio and financial position?

Enel and Enel Chile say the divestment is in line with their strategic plan to continually optimise the risk-return profile of their holdings. By monetising operational solar assets with predictable output, Enel can redeploy capital into priority growth areas while reducing exposure to asset-specific risks. The deal is expected to cut the Enel Group’s net debt by around €504 million and add roughly €20 million to reported net income for 2023, though without affecting ordinary economic results.

The structure allows Enel to realise value from assets it has already brought to steady-state operation. Industry analysts note that selling mature renewable plants to infrastructure-focused buyers has become a common capital recycling tactic among large utilities seeking to accelerate investment in grids, storage, and new renewable developments.

Why is Sonnedix acquiring these operational photovoltaic assets in Chile?

Sonnedix, an independent renewable energy producer active in OECD markets, has built a diversified portfolio over more than a decade, spanning development, construction, and operation. With over 9 gigawatts of total capacity worldwide, the company views Chile as a core growth market due to its favourable solar resources, open electricity market, and stable policy environment.

By acquiring fully operational projects, Sonnedix secures immediate cash flows without the development and construction risks inherent in greenfield projects. The scale of this acquisition boosts Sonnedix’s Latin American footprint and complements its broader strategy of expanding in established, investor-friendly jurisdictions.

What role do Chile’s Atacama and Antofagasta regions play in global solar development?

The Atacama Desert, which spans parts of both regions, is among the sunniest places on Earth, with annual solar irradiance levels that make it ideal for large-scale PV projects. Chile’s National Electric Coordinator reports that northern Chile has become a hub for renewable generation, with solar capacity contributing a growing share of the national energy mix.

High irradiance translates into high capacity factors for solar plants, improving their economic viability. For developers like Enel and Sonnedix, the regions offer a proven environment for utility-scale solar, supported by transmission infrastructure connecting northern generation to demand centres further south.

What are the regulatory steps before this deal can be completed?

The transaction must receive approval from the Fiscalía Nacional Económica, which reviews mergers and acquisitions to ensure they do not unduly restrict competition. The process involves an assessment of market concentration in the electricity generation sector and potential impacts on pricing or supply reliability. Standard conditions precedent, including administrative formalities and potential financing clearances, must also be satisfied before closing.

Enel and Sonnedix have not specified a targeted completion date, but such approvals in Chile typically range from several weeks to a few months, depending on the complexity of the case.

Globally, 2023 has seen sustained M&A activity in operational renewable portfolios, driven by investor appetite for stable, long-term cash flows and the need for utilities to recycle capital into pipeline projects. Infrastructure funds, independent power producers, and pension-backed platforms have been active acquirers, often paying premiums for assets in high-quality resource locations.

In Latin America, Chile stands out for its transparent regulatory framework, competitive auction system, and commitment to decarbonisation targets. Transactions like Enel’s sale to Sonnedix highlight the maturity of the Chilean renewable sector, where operational assets can command strong valuations from international buyers.

What are the expected impacts on Enel Chile’s market position after the sale?

While Enel Chile will no longer own the four PV plants, it remains one of the country’s largest power generators, with a diversified portfolio that includes hydroelectric, wind, and geothermal capacity alongside other solar projects. The company’s strategic plan continues to prioritise renewable energy expansion, grid modernisation, and digitalisation initiatives.

By freeing up capital and reducing debt, Enel Chile is positioned to pursue new developments and potentially participate in upcoming government-led renewable energy auctions. This financial flexibility is seen as critical in a market where transmission constraints and evolving demand patterns require targeted investment.


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