ACER Approves Revised PICASSO and MARI Balancing Frameworks
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European Union – October 31, 2026 -- The EU Agency for the Cooperation of Energy Regulators (ACER) has approved amended implementation frameworks for the PICASSO and MARI electricity balancing platforms. It adopted Decisions 12/2026 and 13/2026 and added three prequalification options for balancing service providers (BSPs).
ACER received both proposals from all electricity transmission system operators (TSOs) on 18 December 2025. PICASSO coordinates cross-border exchanges of automatically activated balancing energy. MARI coordinates manually activated balancing energy. Both platforms draw on frequency restoration reserves.