Registered providers list | National Energy System Operator

[](#main-content) [](/) Please enable JavaScript to use the search interface. An error has occurred while loading the search interface. Please refresh the page. ## Data Portal * [Data Portal](/data-portal) ## User account menu * [Sign in / Register](/saml-login) Show/Hide Menu Toggle ## Main navigation * [What we do](/what-we-do) [What we do](/what-we-do)  We bring together eight activities required to deliver the plans, markets and operations of the energy system of today and the future. Bringing these activities together in one organisation encourages holistic thinking on the most cost-efficient and sustainable solutions to the needs of our customers. Back [What we do](/what-we-do) [View](/what-we-do) + [Strategic Planning](/what-we-do/strategic-planning) The SEP team work in partnership with governments, Ofgem, industry and wider stakeholders to guide Great Britain on what infrastructure and sources of electricity are required to securely accelerate the transition away from fossil fuels into new energy technologies, including renewable energy. + [Security of Supply](/what-we-do/security-supply) Security of Supply analyses where the energy we need over the short, medium and long-term will come from. In doing so it assesses a wide range of factors that could affect our supply of energy, enabling early actions and decisions to ensure we can meet future demand. + [Systems Operations](/what-we-do/systems-operations) From hospitals to households, telecoms to transportation, our society relies on electricity. Our control centre makes sure there is always a reliable and safe supply as we move megawatts around the country. + [Connections Explained](/what-we-do/connections-explained) We will deliver efficient system access for Generation and Demand projects, so that those projects that are first ready can be first served – delivering the energy system to meet net zero and facilitating economic growth by connecting new and existing industries. + [Resilience & Emergency Management](/what-we-do/resilience-emergency-management) Our energy system is complex, with an increasing number of interconnections. This means that disruption to one part can have implications for another. But this complexity also provides us with more options to mitigate problems. + [Energy Insights](/what-we-do/energy-insights) We will develop comprehensive and independent insights across the entire energy system, offering clear recommendations to policy makers, industry decision makers and leadership across our organisation on how to accelerate energy transition progress. + [Energy Markets](/what-we-do/energy-markets) Whether you’re interested in the innovation underway in the Markets team or are looking to brush up on market fundamentals, you’ve come to the right place. + [Data & AI](/what-we-do/data-ai) NESO will bring together data from multiple sources in a way that enables the modern digitalised energy system needed for a low carbon, flexible and affordable future. + [Helping our customers get ready for NESO](/what-we-do/post-neso-launch-support) * [Energy 101](/energy-101) [Energy 101](/energy-101)  We’re experts in all things energy – how much we use, where it comes from and how it moves around Great Britain. And we want to share all that knowledge with you. Back [Energy 101](/energy-101) [View](/energy-101) + [Net zero explained](/energy-101/net-zero-explained) Confused about carbon? Need knowledge on net zero? Interested in EVs? You’ve come to the right place. + [Great Britain’s Monthly Energy Stats](/energy-101/great-britains-monthly-energy-stats) Ever wonder how much gas and electricity we use in Great Britain? View our monthly insights into which generation sources provide Great Britain's electricity and learn how much we use each month. + [Electricity explained](/energy-101/electricity-explained) We're the experts in electricity – how much we use, where it comes from, and how it travels into homes and businesses. Understanding how much electricity we consume, and which devices are most power-hungry is no easy task. + [Hydrogen explained](/energy-101/hydrogen-explained) Hydrogen is a growing part of the energy system. As NESO, we have been building our hydrogen expertise during our journey to being NESO and we would love to share it with you. + [Gas explained](/energy-101/gas-explained) Gas has been a part of Great Britain’s energy mix since the Victorian Era. At NESO, we have been supporting the UK Gas system for many years through our supply and demand forecasts. We are building our expertise in gas as we strategically plan the gas system of the future. + [Balancing the Grid - Interactive game](/energy-101/balancing-grid-interactive-game) To give you some insight into the world of balancing the grid, we’ve developed a game where you can attempt to keep the grid stable while facing some of the challenges our control room operatives experience daily. * [Industry information](/industry-information) [Industry information](/industry-information)  Are you a balancing provider looking to supply services to us, trying to find the latest Grid Code, or TNUoS charging guidance? Find all the information you need including our operational data, forecasts, and reports designed to help you make efficient decisions. Back [Industry information](/industry-information) [View](/industry-information) + [Balancing costs](/industry-information/balancing-costs) Balancing costs are those costs associated with (A) the Balancing Mechanism, (B) balancing services, and (C) energy trading. + [Balancing services](/industry-information/balancing-services) We procure services to balance demand and supply and to ensure the security and quality of electricity supply across Britain's transmission system. + [Charging](/industry-information/charging) All users of the electricity transmission system pay to use it. This brief overview looks at who pays, for what, and how the charges are calculated. + [Codes](/industry-information/codes) Our team of code administrators oversees all aspects of the code modification processes and related meetings. So whether you’re new to the process, or experienced in the way it all works, we’ll help you get to the information you need. + [Connections](/industry-information/connections) In this section, we’ve got everything you need to understand the connections process. Including what you need to do to connect to, or make use of the National Electricity Transmission System (NETS). + [Connections Reform](/industry-information/connections-reform) The UK’s energy system is undergoing a fundamental transformation. To achieve the government’s Clean Power 2030 ambition and support the transition to net zero, we must reform the way projects connect to the electricity network. + [Flexibility](/industry-information/flexibility) We believe that demand side flexibility has a key role to play in operating a fully decarbonised electricity system which is reliable, affordable and fair + [Market Monitoring](/industry-information/market-monitoring "The Market Monitoring team is engaged in continuous oversight of electricity market activities to identify and address potential non-compliance issues.") + [Industry data and reports](/industry-information/industry-data-and-reports) These pages contain data and support for users of the National Electricity Transmission System (NETS). Here you will find the latest operational data, forecasts, and reports. + [Network access planning](/industry-information/network-access-planning) Our Network Access Planning engineers are responsible for assessing, co-ordinating and sanctioning the planned release of assets from the National Electricity Transmission System. + [Reformed National Pricing](/industry-information/reformed-national-pricing "Effective markets are key to delivering and operating the most efficient energy system, and it is critical that those markets are efficiently designed and implemented to deliver affordable, secure and clean energy") Effective markets are key to delivering and operating the most efficient energy system, and it is critical that those markets are efficiently designed and implemented to deliver affordable, secure and clean energy + [System Access Reform](/industry-information/system-access-reform) * [News and events](/news-and-events) [News and events](/news-and-events) All the latest news from the heart of Great Britain's electricity system. Find out how we balance the grid, how we’re innovating for the future, and who the people are that are working on Britain's energy system around the clock. Back [News and events](/news-and-events) [View](/news-and-events) * [Publications](/publications-library) [Publications](/publications-library)  We've got a wide range of publications offering energy insights and analysis. Download our reports and data to see the innovative ways we are transforming the future of Great Britain’s energy. Back [Publications](/publications-library) [View](/publications-library) + [View all of our publications](/publications-library) Find a wide range of publications that provide energy insight and analysis right here, as well as information about how we're shaping the future of energy in Great Britain. + [Beyond 2030](/publications/beyond-2030) The Beyond 2030 report builds on top of the Holistic Network Design and makes a set of network recommendations throughout the 2030s. + [Future Energy Scenarios (FES)](/publications/future-energy-scenarios-fes) Future Energy Scenarios (FES) represent a range of different, credible ways to decarbonise our energy system as we strive towards the 2050 target. + [Transitional Centralised Strategic Network Plan (tCSNP)](/publications/transitional-centralised-strategic-network-plan-tcsnp) We have been enhancing our approach to planning the GB electricity transmission network through a series of transitional CSNPs. + [Clean Power 2030](/publications/clean-power-2030) Achieving clean power by 2030 whilst keeping the system secure and affordable for consumers would be a world-leading achievement. + [Electricity Ten Year Statement (ETYS)](/publications/electricity-ten-year-statement-etys) The Electricity Ten Year Statement (ETYS) is our view of future transmission requirements and the capability of Great Britain’s National Electricity Transmission System (NETS) over the next 10 years. + [GB Reduced Model](/publications/gb-reduced-model "The GB Reduced Model is a simplified representation of the National Electricity Transmission System of Great Britain, developed using DIgSILENT PowerFactory.") The GB Reduced Model is a simplified representation of the National Electricity Transmission System of Great Britain, developed using DIgSILENT PowerFactory. + [North Hyde Review](/publications/north-hyde-review "NESO publishes its interim findings from the review into the North Hyde Substation outage which took place on 20 March and led to the closure of Heathrow Airport.") NESO publishes its interim findings from the review into the North Hyde Substation outage which took place on 20 March and led to the closure of Heathrow Airport. + [Operability Strategy Report and Electricity Markets Roadmap](/publications/markets-roadmap) We are developing new ways to balance electricity supply and demand and manage a low carbon electricity system, helping to meet net zero targets and minimise costs for consumers. + [Summer Outlook](/publications/summer-outlook) Summer Outlook reports are designed to inform the energy industry and support its preparations, we also outline Great Britain’s projected electricity needs for the summer ahead. + [Winter Outlook](/publications/winter-outlook) The Winter Outlook Report presents our view of security of supply for the electricity systems for the winter ahead. + [Whole electricity system](/publications/whole-electricity-system "The journey to creating an energy system fit for the future wouldn’t be possible without close collaboration with industry partners to help the transition.") The journey to creating an energy system fit for the future wouldn’t be possible without close collaboration with industry partners to help the transition. + [System Operability Framework (SOF)](/publications/system-operability-framework-sof) The System Operability Framework (SOF) takes a holistic view of the changing energy landscape to assess the future operation of Britain's electricity networks. + [Regional Development Programmes](/publications/regional-development-programmes-rdps) RDPs look across the whole electricity system to unlock more network capacity, reduce constraints and open new revenue streams for market participants. * [Careers](/careers) [Careers](/careers) Back [Careers](/careers) [View](/careers) * [About](/about-neso) [About](/about-neso)  We ensure that Great Britain has the essential energy it needs by making sure supply meets demand every second of every day. Back [About](/about-neso) [View](/about-neso) + [Strategic priorities](/about/strategic-priorities) As a new organisation we recognise our responsibility to deliver right from the start. The strategic priorities that we are driving towards can be found on this page. + [Our people](/about/our-people) We work with a whole range of experts, including engineers, academics and industry professionals so that we can safely deliver affordable and clean energy to customers. As we build a greener electricity system of the future our people know they are shaping the future for generations to come. + [A whole system challenge](/about/whole-system-challenge) + [Operational information](/about/operational-information) Want to know how we're regulated or how we're organised? Interested in our compliance statements and consultation responses? Our operational information page is where you can find all of this and more. + [European engagement](/about/european-engagement) NESO’s ongoing work with European political and industry stakeholders + [Innovation](/about/innovation) Innovation is critical to helping us meet the challenges of transitioning to a zero carbon future. As we sit at the very heart of the energy system, we play a central role in overcoming these challenges. + [Our progress towards net zero](/about/our-progress-towards-net-zero) Read the story of how the we have decarbonised the electricity system to date, offering a blueprint to other countries around the world to help them reduce emissions. + [Our projects](/about/our-projects) All of our projects contribute towards our effort to make the grid ready to operate with 100% zero carbon electricity by 2025. ## Breadcrumb 1. [Home](/) 2. [Industry information](/industry-information) 3. [Balancing services](/industry-information/balancing-services) 4. [Demand Flexibility Service](/industry-information/balancing-services/demand-flexibility-service-dfs) 5. Registered providers list Add to favourites Close tooltip Sign in to add this page to your favourites [Sign in or register](/saml-login) Show favourites Close Close tooltip Sign in or register to manage your favourites [Sign in or register](/saml-login) [Help](https://www.neso.energy/help-centre) ###### In this section * [Registered providers list](/industry-information/balancing-services/demand-flexibility-service/registered-providers-list) [Registered providers list](/industry-information/balancing-services/demand-flexibility-service/registered-providers-list) Back [Registered providers list](/industry-information/balancing-services/demand-flexibility-service/registered-providers-list) [View](/industry-information/balancing-services/demand-flexibility-service/registered-providers-list) * [Demand Flexibility Service explained](/industry-information/balancing-services/demand-flexibility-service/demand-flexibility-service-explained) [Demand Flexibility Service explained](/industry-information/balancing-services/demand-flexibility-service/demand-flexibility-service-explained) Everything you need to know about the ESO's Demand Flexibility Service which will incentivise consumers and businesses to reduce their power consumption at certain times. Back [Demand Flexibility Service explained](/industry-information/balancing-services/demand-flexibility-service/demand-flexibility-service-explained) [View](/industry-information/balancing-services/demand-flexibility-service/demand-flexibility-service-explained)  ## You are now signed in Visit My NESO account to view and manage your dataset subscriptions. Maybe later [Go to your account](/user/dashboard) # Registered providers list We’ve compiled a list of all the Registered Providers taking part in the Demand Flexibility below. There are two tables (one for domestic households and micro-businesses and one for all other businesses). This will show you how you can contact these providers and take part in the service with them. It also shows if they are a member of the Flex Assure compliance scheme. Last updated: 24 February 2025 [Domestic Households](#Domestic-Households) [Industrial and Commercial](#Industrial-and-Commercial) Domestic Households Industrial and Commercial Domestic Households | DFS Registered Participant | Flex Assure | | --- | --- | | Axle Energy Ltd | | | [British Gas](https://www.britishgas.co.uk/energy/peak-save/registration.html) | | | CarbonLaces Solutions | | | Electryone AI | | | [Equiwatt](https://www.equiwatt.com/powersmart) | | | Fuse Energy Supply Limited | | | GivEnergy (via Octopus Energy Trading Ltd) | | | [Good Energy (via Axle Energy Ltd)](https://www.goodenergy.co.uk/flexirewards/) | | | Hildebrand Technology Ltd | | | Joulen | | | [Octopus Energy](https://octopus.energy/saving-sessions/) | | | Octopus Energy Trading Ltd | | | [Perse Technology Ltd](https://flexibility.perse.io/%20) | | | [ScottishPower (via Equiwatt)](https://www.scottishpower.co.uk/power-saver) | | | SolarEdge (via Axle Energy Ltd) | | | [Stark Flex (via Perse Technology Ltd)](https://starkflex.perse.io/) | | | Uswitch (via Hildebrand Technology Ltd) | | | [Utilita Energy Ltd](https://www.utilita.co.uk/power-payback) | | Industrial and Commercial | DFS Registered Participant | Flex Assure | | --- | --- | | AMP Clean Energy | | | Axle Energy Ltd | | | CarbonLaces Solutions | | | [CUB (UK) Ltd](https://www.c-u-b.com/energy-services/reduction-reward-scheme/) | ✅ | | Drax Energy Solutions Ltd | | | Electryone AI | | | Engie Power Ltd | | | Gallagher Aggregates Ltd | | | [Good Energy (via Axle Energy Ltd)](https://www.goodenergy.co.uk/flexirewards/) | | | Gridbeyond Ltd | | | [Gridimp](https://gridimp.com/) | | | Hildebrand Technology Ltd | | | Infinis Ltd | | | Joulen | | | OakTree Power | ✅ | | [Octopus Energy](https://octopus.energy/saving-sessions/) | | | [Optimo Energy](https://www.optimoenergy.io/benefits/monitise-ev-charging-flexibility) | | | [Perse Technology Ltd](https://flexibility.perse.io/%20) | | | [Stark Flex (via Perse Technology Ltd)](https://starkflex.perse.io/) | | | [SSE Digital Services Limited](https://www.sseenergysolutions.co.uk/demand-flexibility-service) | | | U Energy | | | Vest Energy Ltd | | ## What is Flex Assure | | | | --- | --- | | Image  | [FlexAssure](https://www.flexassure.org/about/) is a compliance scheme for flexibility service providers. The scheme runs two codes of conduct: * Industrial & Commercial Code of Conduct * Domestic & Microbusiness Code of Conduct (formerly known as HOMEflex Code) | Flexibility providers who join Flex Assure as members must demonstrate that their organisation aligns to the relevant voluntary code of conduct. These codes set out minimum standards that protect customers and help build trust in how flexibility services are delivered. Flex Assure independently assesses this alignment. NESO has no responsibility for auditing or overseeing compliance with the Flex Assure Scheme. ## More from Demand Flexibility Service (DFS) ### [Register for our DFS newsletter](https://subscribers.nationalgrid.co.uk/h/d/37F8698C62732098) [](https://subscribers.nationalgrid.co.uk/h/d/37F8698C62732098) Sign up to our mailing list and get the latest news on the Demand Flexibility Service. ### [Get in touch with the team](/cdn-cgi/l/email-protection#ddb9b8b0bcb3b9bbb1b8a5b4bfb4b1b4a9a49da8b6f3b3bca9b4b2b3bcb1b8b3b8afbaa4aeb2f3beb2b0) [](/cdn-cgi/l/email-protection#3357565e525d57555f564b5a515a5f5a474a7346581d5d52475a5c5d525f565d5641544a405c1d505c5e) If you have any questions or queries regarding DFS or would like to arrange a call with the team, please email us. ### [NESO’s Demand Flexibility Service explained](/industry-information/balancing-services/demand-flexibility-service/demand-flexibility-service-explained) [](/industry-information/balancing-services/demand-flexibility-service/demand-flexibility-service-explained) All you need to know about our Demand Flexibility Service (DFS) including why we have introduced DFS and how you can take part. ## Footer * [About NESO](/about-neso) + [Who we are](/about/our-people) + [Operational information](/about/operational-information) + [Careers](/careers) + [Applications, portals and APIs](/applications-portals-and-apis) * [Contact us](/contact-us) + [How to report a power cut](/energy-outages) + [Help centre](https://portal.nationalenergyso.com/nesoHelpCentre/s/) + [Media centre](/news-and-events/media-centre) * [Corporate information](/corporate-information) + [Suppliers](/suppliers) + [Freedom of Information and Environmental Information Regulations](/corporate-information/freedom-information-and-environmental-information-regulations) + [Modern Slavery Statement](/corporate-information/modern-slavery-statement) + [Public Sector Equality Duty (PSED)](/corporate-information/public-sector-equality-duty-psed) ## Site * [Accessibility](/accessibility) * [Privacy notice](/privacy-notice) * [Cookie policy](/cookie-policy) * [Terms and Conditions](/terms-and-conditions) * [Security](/security) * [Responsible Disclosure](/responsible-disclosure) ## Social * [Twitter](https://x.com/NESO_energy) * [LinkedIn](https://www.linkedin.com/company/neso-energy) * [YouTube](https://www.youtube.com/%40NESO_energy)  logo--facebook