Is gas cheaper than electricity?

Many UK adults searching for is gas cheaper than electricity are really asking two things: how can I understand my energy bill, and how can I save money? It is a fair question, especially with energy costs dominating headlines. The short answer is nuanced: gas currently has a lower unit price per kilowatt-hour (kWh) than electricity in the UK. But that is only part of the story. The true cost of your energy depends heavily on how efficiently your appliances use that energy, and the long-term picture for electricity is looking increasingly attractive.

Understanding whether gas or electricity is cheaper is key to managing your home's energy. Fuse Energy helps you take control of your energy usage with clear pricing and smart tools. Click here to switch to Fuse Energy today.

Understanding UK energy costs: gas versus electricity

The perception that gas is always cheaper is rooted in the unit price. For years, gas has been significantly less expensive per kWh than electricity. However, focusing solely on this figure can be misleading when trying to understand your overall energy expenditure.

Current unit prices and standing charges

In the UK, energy bills are made up of two main components: the unit rate (what you pay per kWh of energy consumed) and the standing charge (a fixed daily fee, regardless of how much energy you use). Gas unit rates are typically lower than electricity unit rates. This historical difference, often referred to as the "spark gap", has shaped consumer behaviour for decades. For a deeper dive into how these charges appear on your statement, you can read our guide on utility bills.

However, standing charges also play a crucial role. These daily fixed costs cover the expense of maintaining the energy network and other operational costs. They apply whether you use a lot of energy or none at all, meaning even low-usage households face a baseline cost for both gas and electricity.

The energy price cap explained

The UK energy market is regulated by Ofgem, which sets an energy price cap. This cap limits the maximum unit rate and standing charge that energy suppliers can charge for both gas and electricity. It is designed to protect consumers from excessive prices and is reviewed quarterly. While the cap provides a ceiling, it does not mean all tariffs are at this maximum; some suppliers might offer slightly lower rates. Understanding the current cap is essential for comparing any energy deal.

Beyond unit price: efficiency and usage

Comparing unit prices alone is like comparing the price of petrol to the price of a battery without considering the car. The efficiency of your appliances, especially for heating, dramatically alters the effective cost.

Gas versus electric heating: a deeper look

For many homes, heating is the biggest energy expense. Traditional gas central heating systems, typically powered by a gas boiler, have historically been seen as the most economical option due to gas's lower unit price. However, electric heating has evolved significantly.

Older electric storage heaters or direct electric panel heaters convert electricity directly into heat with near-perfect efficiency at the point of use. While this sounds good, electricity's higher unit cost often made them more expensive to run than gas. Modern electric heating solutions, like heat pumps, challenge this assumption by being incredibly efficient.

The "30-minute heating rule" often comes up in discussions about heating efficiency. This rule suggests that for short periods, it might be more efficient to leave your heating on low rather than turning it off and on. However, this largely depends on your home's insulation and the type of heating system. For well-insulated homes, turning heating off when out for a few hours is usually more efficient. For less insulated homes, the heat loss is so rapid that constantly reheating cold air can be costly. Modern smart thermostats and efficient systems are designed to optimise this, learning your habits and home's thermal properties.

Cooking and hot water: what is more economical?

When it comes to cooking, gas hobs and ovens are often perceived as cheaper to run than their electric counterparts. This is again due to the lower unit price of gas. However, electric induction hobs are highly efficient, transferring almost all energy directly to the pan, reducing waste. Electric ovens can also be very efficient, especially modern convection models.

For hot water, a gas boiler heating a hot water cylinder is common. Electric immersion heaters, while effective, can be expensive to run due to electricity's unit cost. However, a heat pump can also provide hot water very efficiently, often integrating with your heating system.

The impact of appliance efficiency

The efficiency rating of your appliances is paramount. An old, inefficient gas boiler might cost more to run than a modern, highly efficient electric heat pump, despite the unit price difference. Similarly, an old electric oven could be a significant energy drain compared to a new, energy-rated model. Investing in A-rated appliances, regardless of fuel type, can lead to substantial long-term savings.

The rise of electric: heat pumps and smart technologies

The future of home energy is increasingly electric, driven by advancements in technology and a push for decarbonisation. This shift is making electricity not just cleaner, but potentially more affordable in the long run.

Are electric heating systems cheaper in the long run?

Modern electric heating systems, particularly heat pumps, are changing the cost equation. Air source and ground source heat pumps do not generate heat; they move it. For every unit of electricity they consume, they can produce 3 to 4 units of heat. This incredible efficiency means that even with electricity's higher unit price, the overall running cost can be lower than a traditional gas boiler, especially in well-insulated homes.

While the upfront installation cost of a heat pump is higher than a gas boiler, government grants (like the Boiler Upgrade Scheme) can help offset this. Over their lifespan, heat pumps offer significant savings on running costs and contribute to a lower carbon footprint.

Smart tariffs and optimising electricity use

Smart tariffs are another game-changer for electricity users. These tariffs offer different electricity prices at different times of the day, typically cheaper overnight when demand is low and renewable generation might be high. By shifting high-energy activities like charging an electric vehicle (EV) or running a washing machine to off-peak hours, households can significantly reduce their electricity bills. For homes without gas, exploring electricity-only tariffs with smart meter integration can unlock further savings.

Smart meters are typically required for accessing these tariffs, or a multi-register dumb meter, providing real-time data that allows you to monitor and adjust your consumption. This level of control empowers you to make electricity more affordable.

The role of EVs and home batteries

Electric vehicles (EVs) and home battery storage further integrate into this electric future. Charging an EV overnight on a smart tariff can be very cheap, making electric transport more economical than petrol or diesel. Home batteries, often paired with solar panels, allow you to store cheap off-peak electricity or self-generated solar power for use during peak times, further reducing your reliance on expensive grid electricity. This integrated approach creates a more resilient and cost-effective energy system for your home.

Why electricity can seem more expensive (for now)

Despite the efficiency gains and smart technologies, electricity still carries a higher unit price than gas. This "spark gap" is due to several factors embedded in the UK's energy infrastructure and policy.

Factors driving the 'spark gap'

The wholesale cost of electricity is often higher than gas due to the mix of generation sources (including more expensive peaking plants) and the costs associated with balancing the grid. Gas, while also subject to wholesale price fluctuations, has historically been a cheaper commodity.

Policy and network charges

Electricity bills include various policy costs and network charges that are not applied to gas in the same way. These include:

• Network costs: The expense of building, maintaining, and upgrading the vast electricity transmission and distribution networks is recovered through electricity bills.
• Environmental levies: Costs associated with government schemes to support renewable energy and energy efficiency are primarily placed on electricity bills.
• Wholesale market structure: The way electricity is traded and priced in the wholesale market can also contribute to its higher cost.

These structural differences mean that even as renewable generation increases, the underlying costs passed on to consumers can keep electricity unit prices higher than gas for the foreseeable future, without significant policy reform.

Making electricity cheaper: your path to abundance

Understanding the complexities of energy pricing is the first step. The next is taking action to reduce your bills and prepare for a future where clean electricity is abundant and affordable.

Practical steps to reduce your energy bills today

1. Understand your usage: Use your smart meter data or regularly submit meter readings to track where your energy goes.
2. Improve insulation: Loft insulation, cavity wall insulation, and draught-proofing are often the most cost-effective ways to reduce heating demand.
3. Upgrade appliances: Replace old, inefficient appliances with A-rated models.
4. Optimise heating controls: Use thermostats, timers, and smart heating controls effectively. Do not heat empty rooms.
5. Switch to LED lighting: A simple change that can save a surprising amount on electricity.
6. Consider solar panels: Generate your own electricity and reduce reliance on the grid.
7. Explore smart tariffs: If you have a smart meter, look into time-of-use tariffs to shift consumption to cheaper periods.

Preparing for an electric future

The long-term trend is clear: a move towards an electrified, decarbonised energy system. Preparing your home for this future means considering investments that will pay off over time:

• Heat pumps: As discussed, these are highly efficient and will become increasingly common.
• EV charging infrastructure: If you have or plan to get an EV, ensure your home charging setup is efficient and compatible with smart tariffs.
• Home battery storage: Store cheap electricity for use when prices are higher.
• Smart home energy management: Systems that automate energy use based on prices and your preferences.

Challenging the scarcity mindset

For too long, energy conservation has been framed around sacrifice and guilt. "Use less" has been the mantra. But what if we could have abundant, clean energy that allows us to live comfortably without constant worry about the bill or the planet? Fuse Energy believes that human flourishing has always followed access to more energy, not less. The goal is not to shrink our lives, but to build a future where energy is so cheap and clean that it ceases to be a constraint on our ambitions. We believe it is your right to use more energy, not less, when that energy is clean and abundant.

Fuse Energy: powering a future of abundant clean energy

At Fuse Energy, we acknowledge the current unit price advantage of gas. But we also see an inevitable future where abundant, clean electricity becomes the most economical and desirable choice for every household.

Our vision for cheaper, cleaner electricity

Our vision is for a world where energy is invisible: cheap, abundant, clean, and seamless. We believe that energy is the fundamental source for human progress, and that people want to stop choosing between living today or having a great life tomorrow. This means no more trade-offs between comfort and sustainability, or between what you want and what you are told you should do. We are building the infrastructure for the energy the future requires - the future you imagined.

How Fuse is rebuilding the energy system

Fuse Energy is rebuilding the energy system from scratch, vertically integrating generation, distribution, and supply to deliver terawatt-hours of the cheapest, cleanest energy possible. Our approach focuses on making electricity not just sustainable, but genuinely more affordable and convenient. Through smart technology, an intuitive app, and innovative tariffs, we empower our customers to optimise their electricity usage. We are challenging the scarcity mindset, giving you permission to want more and to use more energy when it is clean and cheap, allowing you to build, create, and live fully without energy arithmetic killing your ambition.

Ready to take control of your energy bills and embrace a future of abundant, clean energy? Fuse Energy offers clear pricing, real-time usage data through our intuitive app, and 24/7 human customer support to help you make the most of your energy. Switching to Fuse is quick and easy, often taking as little as 3 minutes. Click here to switch to Fuse Energy today and start your journey towards a smarter, more affordable energy experience. You can also learn more about our mission to deliver abundant, clean energy by clicking here.