Derogation under Article 6(4) of the Electricity Regulation for NESO’s Demand Flexibility Service 2026

What changed

Ofgem approved NESO's request on 25 March 2026 to extend and amend its derogation from Article 6(4) of the Electricity Regulation for the Demand Flexibility Service. The derogation, originally granted under Article 6(14), exempts DFS from standard balancing market requirements that would otherwise apply to balancing energy products. NESO submitted its proposal on 30 January 2026.

The decision maintains DFS as a parallel balancing mechanism outside the competitive Framework Guidelines that govern other balancing services. This continues the regulatory carve-out that allows NESO to procure demand reduction through simplified arrangements rather than through the standardised balancing energy markets that apply to conventional generation and storage.

What this means in practice

DFS operates as a consumer-facing demand response scheme where households and small businesses receive payments for reducing electricity consumption during peak periods. The service runs during winter months when system stress is highest, typically between October and March. Participants register through energy suppliers or aggregators and receive advance notice of DFS events, usually 24 hours ahead of delivery windows that last 1-3 hours.

The derogation allows NESO to bypass several balancing market requirements. Standard balancing energy products must meet technical prequalification criteria, submit complex bid structures with energy and availability components, and operate through centralised platforms with standardised settlement arrangements. DFS participants face none of these requirements - they simply reduce consumption when called upon and receive flat-rate payments regardless of market prices or system conditions.

This creates a two-tier balancing market. Industrial demand response providers must compete in standard balancing energy auctions alongside generators, facing full price volatility and technical requirements. Meanwhile, domestic and small commercial consumers access guaranteed payments through DFS without market risk exposure. A large industrial site reducing 10MW faces different rules than 1,000 households collectively reducing the same amount.

The cost structure reinforces this divide. DFS payments flow through NESO's allowed revenue and are recovered through Balancing Services Use of System charges paid by all consumers. Standard balancing costs are recovered through the same mechanism, but reflect competitive market outcomes rather than administered rates. During high-price periods, this can mean industrial users face expensive balancing energy costs while domestic users receive fixed DFS payments for equivalent demand reduction.

Volume allocation between the services lacks clear principles. NESO determines DFS requirements based on operational needs rather than economic efficiency. If system stress can be resolved through either standard balancing energy or DFS, the choice depends on NESO's operational preferences rather than cost minimisation. This discretionary approach prevents price discovery that would indicate the true value of demand flexibility across different consumer segments.

What happens next

The derogation runs until March 2027, aligning with the current DFS operational window. NESO will need to submit a further extension request if it wants to continue the service beyond winter 2026-27. Given the repeated extensions since DFS launched, another renewal appears likely unless fundamental changes occur to balancing market design.

DESNZ's ongoing Review of Electricity Market Arrangements could affect DFS structure. If REMA recommendations include expanded demand response mechanisms or revised balancing arrangements, the current derogation framework may require modification. Any changes to Article 6(4) requirements through domestic regulation could also impact the derogation's scope.

The European precedent matters less post-Brexit, but EU developments in demand response regulation may influence UK thinking. Several member states operate similar consumer-facing demand response schemes with varying regulatory treatment. Ofgem may draw on this experience when considering future derogation requests.

NESO must report on DFS performance to justify continued exemption from standard balancing requirements. These reports typically cover participation rates, demand reduction volumes, and cost-effectiveness compared to alternative balancing options. Poor performance metrics could strengthen arguments for integrating DFS into standard balancing markets.

Industry pressure for reform may intensify. Commercial demand response providers argue the current system creates unfair competition between consumer segments. If industrial demand response capacity grows significantly, the economic distortions from parallel systems may become harder to defend. Ofgem faces increasing scrutiny over whether socialised costs for domestic demand response represent efficient market design.

The derogation's future depends partly on smart meter rollout progress and supplier system capabilities. Greater smart meter penetration could enable more sophisticated demand response products that might integrate better with standard balancing markets. Conversely, if participation remains limited to basic demand reduction, the simplified DFS approach may persist as the only viable option for mass-market engagement.