TL;DR
Chile’s National Energy Commission has published the bidding terms for its first energy auction including storage. The process favors renewable energy, especially solar paired with storage, with structured time-of-day blocks and 15-year contracts. Details on project requirements and timelines are now available.
Chile’s National Energy Commission (CNE) has officially released the bidding terms for its first energy auction including storage, set to commence in 2026. The process emphasizes renewable energy participation, particularly solar paired with storage, and is structured to support daytime and evening peak demand. This development signals a significant step in Chile’s energy transition and renewable integration efforts.
The CNE’s preliminary terms outline a technology-neutral auction with clear signals favoring renewable energy, especially photovoltaic (PV) projects combined with storage systems. The auction will supply a total of 2,835 GWh annually through two blocks, each with 15-year contracts, running from 2029-2044. The auction is divided into time-of-day segments, with the largest volume allocated to daytime hours (Band B: 08:00–17:59) and evening peak hours (Band C: 18:00–22:59), supporting solar generation and storage for evening demand.
Eligible proposals must connect to the National Electric System and exclude fossil fuels such as coal, petroleum coke, diesel, and No. 6 fuel oil as primary sources. Storage systems are permitted as backup, provided bidders meet specific obligations related to energy withdrawal and capacity. The tender also includes a variable component of 5% of annual demand to address unforeseen increases, requiring flexibility from renewable developers.
The tender schedule indicates a launch on July 1, 2026, with the inquiry period ending August 28, responses due by October 2, and bid submissions scheduled for December 4, 2026. The economic offers will open in January 2027, with the award ceremony planned for January 13, 2027. Bids must be denominated in USD/MWh, with the reserve price set confidentially by the CNE.
Impact of Chile’s First Storage-Integrated Energy Auction
This auction marks a significant step toward integrating storage with renewable energy in Chile, potentially accelerating the country’s clean energy transition. The structured time-of-day blocks and 15-year contracts provide stability and encourage investment in solar-plus-storage projects, which are crucial for managing peak demand and increasing grid flexibility. The auction’s design signals a policy shift favoring renewables, which could influence regional energy markets and attract further investment.
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Chile’s Renewable Energy Policy and Market Evolution
Chile has been progressively increasing its renewable energy capacity, aiming to reduce reliance on fossil fuels and meet climate commitments. Previous auctions have favored wind and solar, but this is the first to explicitly incorporate storage as a core component. The move aligns with regional trends toward flexible, renewable-dominant grids and reflects Chile’s commitment to decarbonization and energy security.
Historically, Chile’s energy sector has faced challenges related to grid stability and peak demand management, which storage solutions can help address. The upcoming auction is part of a broader strategy to modernize the grid and expand renewable integration, with a focus on long-term, stable supply contracts.
“The auction’s design, especially the inclusion of storage and time-of-day segmentation, is a clear signal that Chile is moving toward a more flexible, renewable-based energy system.”
— an anonymous researcher
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Unresolved Details on Reserve Price and Project Quotas
It is not yet clear what the reserve price will be, as it will be set confidentially by the CNE at the auction’s opening. Additionally, the document does not specify any exclusive quotas for solar or other renewables, leaving potential project distribution uncertain. The precise criteria for backup capacity and project progress requirements are also still to be clarified through subsequent detailed guidelines.
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Next Steps in Chile’s Renewable Auction Process
The CNE will officially launch the auction on July 1, 2026, with an inquiry period ending August 28. Stakeholders are expected to submit their responses and any proposed amendments by October 2. Bidders will prepare proposals aligned with the bidding terms, with submission due on December 4, 2026. The process will culminate with the opening of economic offers in January 2027, followed by the award announcement. The outcome will determine the mix of renewable and storage projects entering Chile’s grid over the next two decades.
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Key Questions
What types of projects are eligible for the auction?
Projects must connect to the National Electric System and include renewable energy generation, primarily solar, with the option to incorporate storage systems. Fossil fuel-based primary sources are excluded.
How does the auction support renewable energy integration?
The auction’s structure favors solar projects with storage, especially for peak demand periods, through time-of-day segmentation and long-term contracts, encouraging hybrid renewable-storage developments.
When will the auction results be announced?
The economic offers will be opened in early January 2027, with the final award ceremony scheduled for January 13, 2027.
Will there be quotas for specific renewable technologies?
No, the process is technology-neutral, but it favors renewable projects, especially solar with storage, without setting explicit quotas for each technology.
What are the main challenges for project developers?
Developers must demonstrate backup capacity, secure project financing, and meet project development milestones within the set timelines, with specific requirements for storage differentiation and project progress.
Source: PV Magazine
