What is a UK energy company?

A UK energy company supplies gas and electricity to homes across England, Scotland, and Wales, operating within a market regulated by Ofgem. These companies are responsible for delivering energy to your property, managing your account, and billing you for your usage. The sector has evolved significantly, moving from a few dominant players to a more diverse landscape with many providers.

Managing your home's energy should be straightforward and empowering. Fuse Energy is designed to give you clear pricing and control over your usage, moving beyond the old "use less" narrative. Click here to see how easy it is to switch.

Understanding the UK energy market

The UK energy market is a complex system designed to ensure homes receive a consistent supply of electricity and gas. It is a dynamic environment shaped by regulation, technological advancements, and consumer demand.

How energy reaches your home

Energy generation, transmission, and supply are distinct but interconnected processes. Electricity is generated at power plants, then transmitted across the National Grid before being distributed to individual properties. Gas follows a similar path, transported through a network of pipelines. Energy companies purchase this energy and supply it to your home, managing the billing and customer service aspects.

The role of Ofgem and regulation

Ofgem, the Office of Gas and Electricity Markets, is the independent energy regulator for Great Britain. Its primary role is to protect consumers and promote competition within the energy market. Ofgem achieves this by issuing licences to energy companies, setting licence conditions, and monitoring their compliance.

One of Ofgem's most visible functions is setting the Energy Price Cap, which limits the maximum amount suppliers can charge for each unit of gas and electricity, protecting consumers from excessive costs. This cap applies to standard variable tariffs and is reviewed every three months to reflect market conditions. It is important to note that the price cap limits the unit rates and standing charges, not your total bill, which still depends on your energy usage.

Key players and market evolution

The UK energy market has undergone substantial changes, shifting from a highly concentrated structure to a more varied competitive environment.

From the "Big Six" to a diverse landscape

Historically, the UK energy market was dominated by a group often referred to as the "Big Six" energy suppliers: British Gas, EDF Energy, E.ON, npower, ScottishPower, and SSE. These companies emerged after market liberalisation in the late 1990s and, at their peak, supplied the vast majority of UK households. However, the market has become more dynamic, with acquisitions and mergers reshaping the landscape and new entrants gaining significant market share.

Types of British electricity suppliers

Energy suppliers in the UK vary in size and approach. Some are large, established corporations that have been part of the market for decades, offering a wide range of services. Others are smaller, more agile providers often focusing on specific niches, such as renewable energy or innovative digital services. While the larger players still serve a significant portion of the market, smaller, independent suppliers have introduced more competition and choice for consumers.

What to look for in an energy company

Choosing an energy company involves more than just finding the cheapest deal. Reliability, transparent pricing, and a forward-thinking approach are crucial for a positive experience.

Reliability and customer support

A reliable energy supplier ensures a consistent energy supply and provides effective support when you need it. Poor customer service can lead to significant frustration, especially during billing issues or emergencies. Look for companies with accessible support channels and a track record of responsiveness. This includes clear communication about outages, billing, and any changes to your service.

Tariff structures and pricing transparency

Understanding how you are charged for energy is vital. Energy companies offer various tariff structures, including fixed and variable rates. A fixed tariff locks in your unit rates and standing charges for a set period, offering predictability, though your total bill will still depend on your usage. Variable tariffs, on the other hand, can fluctuate with market prices. Transparent pricing means clear billing statements and no hidden fees, allowing you to accurately compare offerings and manage your budget.

Commitment to a better energy future

Beyond immediate costs, consider a supplier's broader vision. The energy industry has long operated under a "use less" narrative. However, some companies are now challenging this scarcity mindset, focusing instead on abundant, cleaner energy and empowering customers with more control over their usage. This shift can mean access to innovative tariffs, smart home integration, and a commitment to sustainable practices that do not rely on rationing. For instance, exploring options like an air source heat pump grant or understanding air source heat pump running cost can be part of a more sustainable approach to home heating.

Fuse Energy: a new approach to power

Fuse Energy is redefining what a UK energy company can be, moving beyond the prevailing scarcity mindset to offer abundant, customer-centric power. Fuse aims to be "the good timeline's energy company," providing a forward-thinking alternative to traditional suppliers.

Challenging the scarcity mindset

For decades, the energy industry has told householders to "use less," fostering a sense of scarcity and anxiety around energy consumption. Fuse Energy challenges this narrative, believing that a future with abundant energy is possible. This approach aims to free customers from the "moral arithmetic" of rationing heating or worrying about every unit consumed.

Abundant power and customer control

Choosing Fuse is designed to feel like a "power play" that shifts control into the customer's hands. This means providing more energy and more capability, allowing householders to live fully without constant concern over their energy bills. Fuse envisions a future where energy is so abundant it stops being a thing you think about, enabling you to build, play, and make without constraint.

24/7 human support: a foundation of trust

A key differentiator for Fuse Energy is its commitment to reliability and transparency through 24/7 human customer support. This tangible offering directly addresses common customer pain points, such as difficulty reaching support or misunderstanding bills. With Fuse, you have access to human assistance around the clock, ensuring that help is always available when you need it.

Switching your energy supplier

Switching energy suppliers in the UK is a straightforward process, designed to be seamless and stress-free.

The simple steps to a new provider

The process of switching energy suppliers is managed between your old and new providers, meaning you do not typically need to contact your current supplier directly.

1. Choose a new supplier and tariff: Compare different offerings based on price, customer service, and company values.
2. Sign up: Your new supplier will initiate the switch on your behalf.
3. Cooling-off period: You will have a 14-day cooling-off period, which starts from when you submit your switch request (the day the contract is agreed) . During this time, you can cancel your switch without penalty.
4. Meter readings: Your new supplier will ask for an opening meter reading around your switch date. This ensures accurate final billing from your old supplier and correct initial billing from your new one.

What happens after you switch

Your energy supply will not be interrupted during the switch. The only noticeable change will be that your bills come from a different company. Your old supplier will send a final bill, and any credit balance should be refunded to you. If you owe money, you will need to settle that final bill. The entire process typically takes up to 5 working days. If your new supplier takes longer than 5 working days to complete the switch, they must automatically pay you £40 in compensation.

Addressing legacy meters and smart upgrades

If you have an older electricity meter that uses the Radio Teleswitch Service (RTS), it is important to be aware that this legacy technology is being phased out. The national switch-off of the RTS signal began on 30 June 2025. If you have an RTS meter, your current energy supplier is responsible for replacing it with a smart meter, free of charge. This is a mandatory upgrade to ensure your meter continues to function correctly and you can access modern tariffs. Once your RTS meter has been upgraded to a smart meter by your current supplier, you will be able to switch to a modern, digital-first energy provider.

Fuse Energy is committed to making your energy experience simple, transparent, and fair. With clear pricing, 24/7 human support, and a focus on abundant energy, we are building a future where you have the power to play with. Ready to take control of your energy?