Chile turned its generators into the state's unsecured creditor

Chile's generators have been financing their own government since 2019, and most models still book it as electricity revenue. Law 21.185 froze regulated tariffs below the cost of supplying them that year, and the shortfall sat on generation companies' balance sheets rather than on customers' bills. A CNE-based estimate cited by the outlet Ex-Ante put the ceiling on that accumulated debt, across three successive freezes, at roughly US$4,600 million by mid-2025, with no accrued interest added yet. The companies carrying that balance are owed money by the state. They are not, in any ordinary sense, being paid.

Framed as consumer protection, the mechanism did what it was built to do. Chilean households never saw the tariff shock that would have landed if prices had tracked cost in real time. Framed as a financing instrument, which is what it has become, it asks generators to hold a multi-year, partially-secured claim against a sovereign borrower, and most debt packages still treat the cash as collected rather than pending.

A consumer-protection law that became a credit instrument

Law 21.472, published in August 2022, layered a second stabilization fund on top of the first, the Mecanismo de Protección al Consumidor. Enel Generación's own financial statements for the first half of 2026 describe that fund growing by US$5,500 million, to be repaid through a tariff surcharge recovered over time. The amortization target for that balance has already slipped once, from 2032 to 2035, before a single full cycle of collection has run its course.

Not every generator carries this exposure equally. Only contracts signed before 2021 fall under the MPC, according to a legal analysis from the firm Carey. That is a due-diligence question before it is a risk-pricing one: the vintage of the underlying regulated contract determines whether a counterparty is sitting on a clean revenue stream or a government receivable with a decade-long clock on it.

The guarantee covers less than it sounds

Of that US$5,500 million fund, US$3,700 million is the newer tranche eligible for state backing, and the fiscal guarantee attached to it covers 30 percent. The rest of the balance, including the older PEC debt, carries none. A guarantee that thin is not collateral in the way a lender normally means it.

Guaranteeing three dollars in ten still leaves a lender exposed on the other seven, against the same counterparty.

The mechanism's execution risk is not only political. In 2024, a CNE calculation error, indexing part of the debt to inflation twice, handed generators roughly US$117 million more than the formula intended, an error serious enough that it cost both the energy minister and the CNE's executive secretary their jobs, per reporting from Ciper. A receivable whose size depends on a regulator getting arithmetic right, every quarter, for a decade, carries a different risk profile than a signed PPA with a fixed escalation clause.

What we think follows

Anyone financing a Chilean generator with pre-2021 regulated contracts should model the MPC and PEC balances the way a desk would model a long-dated, partially-guaranteed sovereign bond, not as working capital due in the ordinary course. Stress the 2035 amortization schedule the way you would stress a government's own debt maturity profile, and discount the unguaranteed 70 percent of the newer tranche harder than the DSCR model currently does. The counterargument deserves its due: the alternative was a tariff shock households may not have absorbed, and generators did eventually raise roughly US$450 million in external financing against the receivable rather than carrying it unfunded indefinitely. That bought time for everyone involved. The decade of collection risk sitting behind it still has to clear.

ZFC's own pipeline carries none of this particular exposure. It sits in Peru, where Olmos Wind, Frontera, Aurelion and Solar II are advancing toward Ready-to-Build in 2028 and 2029, well outside Chile's tariff-stabilization system. The lesson travels anyway: a payment structure that quietly converts into multi-year government credit is a term worth pricing before signature, not discovering at refinancing.

The open question

The fiscal guarantee and the 2035 schedule both assume a government, several administrations from now, with the fiscal room and the political will to keep collecting a surcharge Chilean households will have been paying for over a decade by then. Nobody currently financing against that receivable knows whether that holds, including, probably, the regulator that already revised the schedule once.

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