Ecuador Formally Accepts Coca Codo Sinclair Hydroelectric — Despite 17,600 Cracks and a $200M Settlement

What Happened

April 17, 2026 is the deadline for Ecuador to formally accept Coca Codo Sinclair — the country's largest hydroelectric project, generating roughly 40% of Ecuador's hydropower on a normal day — from its Chinese builder Sinohydro, per Primicias (source).

The plant has technically been generating since November 2016. But the state had refused to formally take possession of it for nearly a decade because of structural defects. Today that changes.

The Long Refusal

Coca Codo Sinclair was contracted under President Rafael Correa with an investment of "USD 2.763 millones" — roughly $2.76 billion. It was inaugurated in November 2016.

It was never formally accepted, because of a single recurring problem: fissures in the distribuidores, the components that handle high-pressure water dropping 600 meters from the intake and direct it to the turbines.

The escalation:

• 2018 Contraloría report: "más de 7.600 fisuras" (more than 7,600 cracks)
• 2022 Celec report to Asamblea: "17.661 fisuras"

The Contraloría's warning was direct: "las fisuras constituyen un riesgo serio que, de seguir apareciendo, podrían provocar una inundación en la casa de máquinas" — the cracks are a serious risk that could flood the powerhouse, valued at $1.011 billion.

Five separate repair campaigns ran between 2015 and 2022. Cracks kept appearing — even in already-welded sections.

The Arbitration

On May 17, 2021, state utility Celec filed an arbitration claim against Sinohydro at the International Chamber of Commerce (CCI) in Paris. Initial damages sought: USD 580 million.

During 2022 negotiations under President Lasso, Ecuador floated a $1.5 billion bonus from the Chinese government as compensation. China asked for two things in exchange: drop the arbitration, and formally accept the plant.

Lasso's muerte cruzada in May 2023 froze the talks.

The Noboa Deal

After Noboa's June 2025 official trip to China, the deal restarted. Final terms, per Energy Minister Inés Manzano:

• $200 million cash payment to Ecuador
• $200 million credit line under "crédito de proveedor" terms
• Arbitration dropped (formalized December 2025; mutual-agreement award notified April 3, 2026)
• Acceptance deadline: April 17, 2026 — today

And the operation contract:

• PowerChina (Sinohydro's parent) takes over operation and maintenance for 25 years
• $46 million/year = $1.150 billion total over the life of the contract
• Original proposal was $60M/year; negotiated down

For reference, a 2009 study by Italian consultancy Electroconsult estimated the plant's annual O&M cost at "unos USD 18 millones al año" — about $18 million.

What About the Fissures?

This is the open question.

In its April 6, 2026 letter requesting formal acceptance, Sinohydro stated that pending issues with the distribuidores "se van a transferir en el contrato de administración, operación y mantenimiento con PowerChina" — they're being transferred into the new operations contract.

The contract is supposed to require PowerChina to "atender los defectos e ítems pendientes, si los hubiere" — address defects, including studies, repairs, replacements at its own cost.

Minister Manzano on April 13: "la obligación de reparar todo lo que se debe de reparar, cambiar los distribuidores... Hay una garantía específicamente para los distribuidores, esa garantía se mantiene."

In plain English: PowerChina is contractually on the hook for fixing the cracks. Whether they actually do, and how fast, is the open variable.

What This Means for Expats

• In the short term, nothing changes. Coca Codo Sinclair has been generating for nine years already. Acceptance is a paperwork milestone, not an operational one. The April 14 historic peak of 5,374 MW and ongoing coastal blackouts are about transmission and distribution capacity, not Coca Codo specifically.
• In the medium term, this is mixed. Putting PowerChina on a long-term contract creates accountability for fixing the cracks and delivers needed cash. It also locks Ecuador into Chinese technical dependency on its largest power asset for 25 years.
• For grid reliability, watch for the contract signing in May 2026. That's when the actual O&M handover happens. Until then, the plant is in a transitional state.
• For your power bill, no immediate impact. Tariff discussions are separate. But structural under-investment in transmission and distribution remains the binding constraint, and that's an H2 2026 conversation.
• If you're in Quito, Cuenca, or the Sierra, Coca Codo's output flows north. Reliability there is more directly tied to this asset than coastal blackouts have been.

After ten years of legal limbo, the Coca Codo book is closing — at a steep ongoing cost and with the underlying structural defect not yet resolved.

Source: Primicias