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Governance scenario

REMA Implementation

A fictional future market-reform package is announced and participants must adapt. The case tests transition governance rather than current live rules.

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This is a fictionalised teaching scenario grounded in real institutional roles, published reforms, and current public-source context.

Scenario player

Work through the decision path below. Each choice changes the route, the institutional trade-offs, and the metrics the scenario tracks.

REMA Implementation

Step 1 of 2

DESNZ

REMA design announcement

DESNZ has published a fictional future market design package. It includes stronger day-ahead participation rules, tighter capacity-market arrangements, and new balancing-market provisions. Generators say the package will harm investment signals. Suppliers say it increases procurement costs. Existing contracted positions will be disrupted. Transition period is 18 months.

What is at stake

  • -Further market reform is intended to support decarbonisation and system efficiency, but the design path remains contested.
  • -If transition is too fast, firms go bankrupt.
  • -If transition is too slow, benefits are delayed.

How do you manage the transition?

Current Metrics

Operational Efficiency55
Stakeholder Trust58
System Security68
Net Zero Progress70
Affordability60
Customer Protection62

Actors Involved

DESNZOfgemNESOGeneratorsSuppliers

Regulatory Context

Future Market Framework, REMA, and reformed national pricing workstreams

Governance relationship map

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Operating loop breadcrumb

Governance→Planning→Operations→Outcomes→Evidence

Current focus: Rules and accountability

Legend

Governance and policy

Rules, remits, and accountability

Planning and investment

Connections, queue progression, and delivery planning

System operations

Real-time balancing and network operation

Market and consumer outcomes

Prices, settlement, reliability, affordability

Evidence and learning

Telemetry, assurance, and continuous improvement

Glossary

  • Dispatch

    Real-time instructions to increase or reduce generation or demand so supply stays in balance.

  • Balancing

    The continuous process of matching electricity supply to demand while maintaining system frequency.

  • Constraint

    A technical limit in the network that restricts how power can flow under current conditions.

  • Industry code

    A formal rulebook that defines obligations and processes for specific market and network activities.

  • Connection agreement

    The formal agreement setting technical and milestone conditions for connecting a project to the network.

  • Settlement

    The process that turns metered and contractual positions into final market cashflow outcomes.

  • Conformance gate

    A quality checkpoint that verifies whether data or implementation meets agreed standards.

  • LTDS

    Long Term Development Statement publication requirements for distribution network data.

Guided tour

Step 1 of 8

Who sets the rules?

Start with governance: policy direction, regulatory oversight, licences, and code obligations.

Why it matters: Newcomers should first understand where authority sits before interpreting operational decisions.

Open Ofgem licence and code guidance

Preparing system graph…

Use this map to keep scenario decisions anchored to policy, coordination, operational delivery, and evidence feedback relationships.

Sources and methodology

How this page was assembled

Scenarios are designed as regulator-safe teaching runs. Institutional roles, programme context, and cited reform pathways stay grounded in current public sources, while event details and numbers inside the run remain fictionalised unless explicitly evidenced elsewhere. This scenario is framed against Future Market Framework, REMA, and reformed national pricing workstreams.

Last reviewed 18 March 2026

Primary sources

Ransford's Notes