UK ENERGY LAW AND ELECTRICITY SYSTEM – ENERGY SYSTEM LIQUIDITY CRISIS AND EMERGENCY STABILISATION

Introduction

An energy-system liquidity crisis arises when electricity or gas suppliers, generators, traders, or network participants cannot obtain sufficient short-term cash or collateral to meet wholesale-market, balancing, network-charge, hedging, or customer-supply obligations. In the United Kingdom, sudden wholesale-price increases can create severe working-capital requirements because suppliers may have to purchase electricity at market prices while customer tariffs remain constrained by contractual arrangements or regulatory price controls. The 2021–2022 energy crisis demonstrated how liquidity shortages can cause numerous supplier failures and create systemic risks for consumers and the wider electricity market.

Legal And Regulatory Framework

The principal framework includes the Electricity Act 1989, Gas Act 1986, Energy Act 2004, Energy Act 2011, energy supply licence conditions and Ofgem's statutory regulatory powers. Where an ordinary supplier becomes insolvent, Ofgem may appoint a Supplier of Last Resort (SoLR) to take over its customers. Ofgem explains that Last Resort Supply Payments may compensate the replacement supplier for appropriate additional wholesale, working-capital and customer-credit-balance costs.

For very large failures, where transferring customers immediately would threaten market stability, the Energy Supply Company Administration regime permits continued operation of the failed supplier. Under the Energy Act 2011, the administration objective focuses on maintaining energy supplies at the lowest reasonably practicable cost while enabling rescue, sale or transfer of the business. Government financing may therefore temporarily support the administrator so that liquidity shortages do not interrupt essential electricity or gas supplies.

Emergency Stabilisation Mechanisms

Emergency intervention can involve government funding, industry-wide cost recovery, temporary working-capital support, transfer of customers and restructuring of failed suppliers. The purpose is not necessarily to preserve shareholders or an unsuccessful business model, but to protect continuity of supply and prevent disorderly contagion across the energy system.

Ofgem has also strengthened supplier financial-resilience rules following the energy crisis. These measures include capital and liquidity requirements, restrictions on excessive reliance on customer funds and ring-fencing of certain obligations. In August 2025, Ofgem additionally introduced the SoLR Levy Offset, effective from 1 October 2025, intended to enable certain failure-related costs to be recovered from residual assets of failed suppliers rather than automatically being borne entirely by consumers.

Case Name/Citation

Cowlishaw & Others v Octopus Energy Retail 2022 Ltd (Re Bulb Energy Ltd) [2022] EWHC 3105 (Ch).

Facts

Bulb Energy entered energy supply company administration after becoming unable to withstand extreme wholesale-market conditions. Its administrators proposed transferring Bulb's business to Octopus Energy through an energy transfer scheme.

Legal Issue

The Court considered its statutory role under the Energy Act framework when fixing the effective time for the transfer scheme and whether objections from competing suppliers justified delaying implementation.

Judgment

The High Court permitted the transfer arrangements to proceed and declined to postpone the effective transfer merely because separate judicial-review proceedings were contemplated.

Legal Principle/Ratio

Energy supply administration must be interpreted consistently with its statutory objective of maintaining consumer supply while achieving an orderly restructuring or transfer of the failed undertaking.

Significance

The case demonstrates how insolvency law is modified in the energy sector where immediate liquidation could threaten millions of consumers and wider market stability.

Case Name/Citation

R (British Gas Trading Ltd and others) v Secretary of State for Energy Security and Net Zero [2023] EWHC 737 (Admin); subsequent appeal [2025] EWCA Civ 209.

Facts

British Gas, E.ON and other competitors challenged governmental decisions connected with the transfer of Bulb's business to Octopus and associated financial-support arrangements.

Legal Issue

The dispute concerned the legality of governmental intervention, the transfer process and the treatment of public financial support during emergency energy-market stabilisation.

Judgment

The Divisional Court rejected the challenge, allowing the Bulb transfer arrangements to remain effective. The litigation subsequently reached the Court of Appeal in 2025.

Legal Principle/Ratio

Emergency energy intervention remains subject to public-law requirements, including statutory authority, rational decision-making and procedural legality, even where rapid intervention is required.

Significance

Bulb illustrates the central tension in liquidity-crisis governance: government must act rapidly enough to preserve energy continuity while ensuring that extraordinary financial intervention remains legally accountable.

Conclusion

UK energy liquidity-crisis law combines financial resilience regulation, Supplier of Last Resort mechanisms, special administration, government financing and judicial review. The framework treats liquidity as a systemic electricity-security concern because the collapse of a major supplier can transmit costs and instability throughout the market. Effective emergency stabilisation therefore seeks to preserve continuous supply while allocating losses lawfully and limiting long-term costs to consumers.