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BESS calculatorFlexible access · storage

Your BESS is already under flexible access. Find out what it means for your project.

Storage demand-access applications are assessed as flexible access. We tell you which route your permit follows, which types you can request and what you need to prepare.

  • 2 to 8 questions
  • Permit route
  • No details needed to see it

Indicative result based on the CNMC Resolution of 31 July 2026 (BOE of 11 August 2026). Whether each access type is actually available depends on the grid operator's implementation timetable, and the final type depends on its capacity study.

What it answers
  • 01Regulatory routeNew project, non-operational permit or operating asset: what you need to do and when.
  • 02Types 0, 1 and 2Which ones fit your connection point and your operation.
  • 03Technical readinessSIGPF, telemetry, control and remote disconnection.

The next question, how much it affects revenue, is modelled in One Hub Analytics.

Step 1 of 8

Tell us about your project

01 / 08

What stage is your project at?

The date that counts is 1 September 2026, when the resolution took effect.

Indicative result based on the CNMC Resolution of 31 July 2026 (BOE of 11 August 2026). Whether each access type is actually available depends on the grid operator's implementation timetable, and the final type depends on its capacity study.

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Backed by Octopus Energy Generation
Proyecto SNEO-20231420 subvencionado por el CDTI. Gobierno de España, Ministerio de Ciencia, Innovación y Universidades.Financiado por ENISAProyecto CPP2021-008632 financiado por MCIN/AEI/10.13039/501100011033 y por la Unión Europea NextGenerationEU/PRTR.

Proyecto SNEO-20231420 (OneFlex) subvencionado por el CDTI · Proyecto CPP2021-008632 (DiÓptiBa) financiado por MCIN/AEI/10.13039/501100011033 y por la Unión Europea NextGenerationEU/PRTR · Proyecto PR-NMN-01-2023-000444 (OneBESS) financiado por la Unión Europea — NextGenerationEU, a través del IDAE (Ministerio para la Transición Ecológica y el Reto Demográfico), en el marco del Plan de Recuperación, Transformación y Resiliencia.

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