Storage bidders compete to meet the system need that the call summarizes in hours

Mexico publishes a 3-hour reference, Colombia delivery windows, and the Dominican Republic a minimum of 4; the documents examined do not show how they were derived.

The Mexican 2026 call for projects gives 3 hours as a "reference" and allows different proposals. In Colombia, the products in Resolución 40208 (Resolution 40208) set windows of 08:00–18:00 and 18:00–22:00, with no minimum battery duration. The Dominican Republic requires 4 hours for batteries in a renewable tender of up to 600 MW.

Duration can be derived from the system: the Chilean operator jointly optimized generation and storage on a simplified network and obtained 6 to 8 hours, with 1,000 to 4,000 MW in the north. This applies to Chile and its assumptions; it does not set the duration of any asset.

With a Capital Projects Decision System, the need comes from an hourly, nodal representation of the system, and profitability is tested with independent evidence on competition and revenue.

Which system need will sustain your asset?

The full Perspective, with its sources, is available on request.