London Power
London Power is a Greater London Authority-owned electricity and gas supply brand serving customers at London addresses.
Last updated August 27, 2026
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Overview
London Power is a public-sector energy supply brand established by the Greater London Authority (GLA) in July 2019 and launched for trading in January 2020. It was created under the leadership of Sadiq Khan, the Mayor of London, as a municipally owned retail energy initiative focused on households and other customers located within London. Unlike a conventional private energy company seeking to distribute profits to shareholders, London Power was designed so that profits received by the GLA could be directed toward the Mayor's social and environmental objectives and community projects. The brand operates within a partnership model rather than maintaining a fully integrated in-house retail, billing, and customer-service infrastructure. Octopus Energy supplies London Power's gas, provides electricity described by the GLA as 100% renewable, and handles customer service on the brand's behalf. London Power therefore combines public ownership and policy goals with operational support from an established private-sector energy supplier. The GLA receives a commission from Octopus for customers acquired through London Power, while any profits accruing to the GLA are intended for reinvestment in community initiatives. London Power's customer eligibility is geographically restricted: it accepts customers only at addresses in London. This makes it a local or regional energy brand rather than a nationwide supplier. Its proposition is consequently tied to London government identity, public benefit, and environmental policy rather than to broad national scale. The arrangement also illustrates a hybrid model in which a local-government-owned brand uses a commercial energy partner to provide the infrastructure and services required for retail supply. The model attracted both support and criticism. Caroline Russell, the Green member of the London Assembly, criticised the arrangement because Octopus Energy, a private company, helped establish and operate the service, arguing that the initiative was not entirely within the GLA's direct responsibility. The Renewables Energy Agency, by contrast, supported London Power and characterized the GLA's involvement as pioneering. Public information identified in the available reference material does not establish detailed customer numbers, revenue, profitability, executive succession, or a separate corporate website. London Power is best understood as a London-focused public energy brand whose commercial operations are delivered through a private-sector partner and whose stated financial purpose is to support social and environmental goals in the capital.
History
London Power was established by the Greater London Authority in July 2019 and began trading in January 2020. Its creation reflected an effort to use the authority's ownership and convening power to establish a London-specific retail energy brand while directing the public benefit from the activity toward the capital's social and environmental priorities. The initiative was launched under Sadiq Khan, the Mayor of London. The service was not structured as a fully self-contained municipal utility. Octopus Energy became the operational partner, supplying gas, providing electricity described as 100% renewable, and handling customer service for London Power. This arrangement allowed the brand to enter the retail energy market without independently duplicating the technical, billing, supply, and support systems required by an energy supplier. The GLA receives a commission from Octopus for customers supplied through the London Power brand. According to the stated model, profits made by the GLA are reinvested in community projects and used to support the Mayor's social and environmental goals. London Power's market is deliberately limited to London addresses. The geographic restriction distinguishes it from national household energy brands and makes the service closely connected to the identity and policy agenda of London's city government. Its public ownership and reinvestment model are central to its positioning, while its supply and service relationship with Octopus provides the commercial operating capability. The partnership model generated debate about the balance between public ownership and private delivery. Caroline Russell, the Green member of the London Assembly, criticised London Power's creation with assistance from Octopus Energy, preferring a structure that would place the initiative more directly under GLA responsibility. The Renewables Energy Agency supported the project and described the GLA as a pioneer. The available reference material does not provide enough information to establish detailed subsequent changes in ownership, leadership, customer scale, financial performance, or product expansion. On the documented record, London Power remains a London-focused public energy brand operating through a private-sector supply and service partnership.
- 2020
Trading begins
[1]London Power begins trading in January, accepting customers at London addresses and using Octopus Energy for supply and customer-service operations.
- 2019
London Power is established
[1]The Greater London Authority establishes London Power in July as an electricity and gas supply brand under the leadership of Mayor Sadiq Khan.
Products and positioning
A locally focused, publicly owned energy brand combining Greater London Authority ownership with Octopus Energy's supply and customer-service capabilities, with profits intended for social, environmental, and community objectives.
Electricity supply · 2020
London Power electricity
An electricity retail offering for customers at London addresses. The GLA describes the electricity supplied through London Power as 100% renewable. Octopus Energy supplies the electricity and provides the associated customer-service infrastructure on London Power's behalf.
Gas supply · 2020
London Power gas
A gas retail offering restricted to London addresses. Octopus Energy supplies the gas and supports customer service for the London Power brand, while the GLA's stated model directs resulting public profits toward social, environmental, and community objectives.
Brand decisions
2019
Create a publicly owned London energy brandStrategyBackground
The Greater London Authority sought to establish a local energy-supply brand whose public ownership could support the Mayor's social and environmental goals.
Action taken
The GLA established London Power and limited its customer base to London addresses.
Aftermath
The model created a London-specific energy supplier whose profits were intended for reinvestment in community projects, while also prompting debate about the extent of private-sector involvement.
2019
Use Octopus Energy as the operating partnerStrategyBackground
A new public energy brand required supply, retail, and customer-service capabilities.
Action taken
London Power was established with Octopus Energy supplying gas and renewable electricity and handling customer service.
Aftermath
The partnership enabled London Power to trade from January 2020, but Caroline Russell criticised the role of a private company in the initiative.
Sources1 sources
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