Agile pricing: how dynamic rates work

Dynamic energy tariffs, often called agile pricing, link your electricity unit rates directly to the fluctuating wholesale cost of power. This means the price you pay changes frequently, typically every half-hour, allowing you to pay less for electricity when demand is low and generation is high. For UK homeowners, understanding and leveraging these tariffs can unlock significant savings and offer greater control over energy bills.

Agile pricing offers a new way to manage your energy costs. Fuse Energy helps you stay on top of your usage with clear, in-app data, empowering you to make smart choices. Click here to see how easy it is to switch.

Understanding agile energy pricing

What is dynamic energy pricing?

Dynamic energy pricing is a modern approach to energy billing that moves away from traditional fixed or static variable rates. Instead, it introduces real-time price signals, reflecting the actual cost of electricity on the wholesale market. These tariffs mean the unit price you pay for electricity changes over time to reflect actual market conditions. When electricity is plentiful, prices can be lower; when demand is high or supply is tighter, prices can go up. This differs from time-of-use (TOU) tariffs, which have fixed price periods (for example, always cheaper overnight), as dynamic pricing changes daily based on actual market conditions.

How agile tariffs differ from fixed and standard variable rates

Unlike fixed-rate tariffs, where your unit rate and standing charge remain constant for a set term, or standard variable rates which update quarterly, agile tariffs offer Half-Hourly electricity rates that fluctuate based on wholesale market prices. This means the cost of your electricity can vary significantly throughout the day, sometimes even going negative when there's an excess supply of electricity on the grid. While fixed tariffs offer predictability, agile tariffs reward consumers for flexibility, incentivising them to shift energy usage to times when it's cheaper and often greener.

How agile pricing works

The role of wholesale energy markets

The wholesale energy market is where electricity is bought and sold in bulk before reaching the retail market. Prices on this market can fluctuate rapidly due to varying supply and demand, influenced by factors such as weather conditions (affecting renewable generation) and global events. Agile tariffs directly pass these wholesale prices, plus a small markup for distribution and operational costs, onto consumers. This direct link means that when wholesale prices drop, your bills can drop too.

Half-Hourly rates and smart meters

Agile tariffs operate on a Half-Hourly settlement basis, meaning electricity prices change every 30 minutes. To accurately track consumption and enable variable billing, a smart meter capable of sending Half-Hourly readings is essential. The Market-wide Half-Hourly Settlement (MHHS) programme, an initiative by Ofgem, aims to ensure all electricity meters are settled using Half-Hourly data, with full migration expected by mid-2027. This change is designed to make the electricity grid greener and more efficient. Without this Half-Hourly data, a supplier cannot accurately apply a tariff whose price changes throughout the day.

Peak and off-peak periods explained

On an agile tariff, prices vary not only by time of day but also with seasonal and weather-driven energy availability. Prices are typically lowest between 11pm and 6am, and often fall below 10p/kWh. They often coincide with times of high renewable generation (e.g., windy afternoons) or low overall demand (e.g., overnight). Conversely, prices peak between 4pm and 7pm on weekdays when demand is highest, and can sometimes spike significantly. Understanding these patterns allows households to schedule heavy-use appliances at optimal times, storing energy when prices drop and using it when prices are high.

Benefits of agile tariffs for UK homes

Potential for significant cost savings

The primary benefit of agile pricing is the potential for significant cost savings. By shifting high-energy activities - such as charging electric vehicles (EVs) or running washing machines - to periods when wholesale electricity prices are low, homeowners can drastically reduce their expenditure. The average UK home uses around 2,500 kWh of electricity per year, so even small shifts in usage can add up. Some agile tariff users have reported substantial annual savings compared to standard tariffs.

Greater control over energy bills

Agile tariffs empower homeowners to become active participants in the energy market. With access to real-time pricing data, you can make informed decisions about when to consume electricity. This optimisation not only saves money but also contributes to a more balanced and sustainable energy system by reducing strain on the grid during peak times. This level of control allows you to align your usage with cheaper, greener periods, giving you more power over your energy costs. For many, this also means a better understanding of their energy bill.

Supporting a greener grid

When agile tariff customers shift their energy usage to access the cheapest rates, they often reduce the need to burn as many fossil fuels during 'peak times'. This helps the grid make the most of green energy when it's abundant, accelerating the transition to a more flexible and responsive energy system. Dynamic tariffs encourage consumers to use power when it is abundant, such as during periods of high wind or solar generation.

Is agile pricing right for you?

Assessing your household's energy usage

Agile pricing is not suitable for every household, as savings depend on your ability to shift energy use. If most of your electricity use happens at fixed times - for example, cooking and heating during the early evening - a tariff with volatile peak pricing could increase costs unless you have solar, battery support, or enough flexibility elsewhere. Consider your daily routines and whether you can realistically move high-consumption activities to off-peak hours.

Smart meter compatibility

A smart meter capable of sending Half-Hourly readings is a fundamental requirement for agile tariffs. If you have an older Radio Teleswitch Service (RTS) meter, it will need to be replaced with a smart meter. The industry-wide phase-out of RTS meters began on 30 June 2025, and your current supplier should contact you to arrange a free upgrade. Once your meter is upgraded, you'll be able to access modern tariffs like agile pricing. You can learn more about smart meter installation to prepare.

Considering your lifestyle and flexibility

Agile tariffs are best suited for those who can actively manage their energy consumption. This includes homeowners with electric vehicles, battery storage, or smart home devices that can automate usage. If you're willing to change your electricity usage patterns to shift consumption away from peak times, agile pricing can lead to significant savings. However, if your lifestyle offers limited flexibility in when you use electricity, the price variation might feel like an unnecessary complication, and a fixed tariff could be more suitable.

Maximising savings with dynamic tariffs

Strategies for shifting energy consumption

To maximise savings with an agile tariff, actively shift high-energy activities to cheaper, off-peak periods. This includes:

• Charging electric vehicles (EVs): Schedule EV charging at home overnight when rates are typically lowest.
• Running large appliances: Use washing machines, dishwashers, and tumble dryers during off-peak hours.
• Utilising battery storage: Charge home batteries when prices are low and discharge them during expensive peak periods.
• Pre-heating/cooling: If you have electric heating or cooling, consider pre-heating or pre-cooling your home during cheaper times.

Integrating with smart home technology

Smart home technology can significantly enhance your ability to benefit from agile pricing. Smart thermostats, smart plugs, and programmable appliances can automate energy usage, responding to price signals without constant manual intervention. For example, smart battery systems can automatically manage charging and discharging based on daily price changes. This automation helps you take advantage of low prices and avoid high ones, making it easier to optimise your energy consumption.

Monitoring your usage and rates

Staying informed about upcoming rates and your own consumption patterns is key to maximising savings. Energy suppliers on agile tariffs typically publish the next day's Half-Hourly prices in advance, often by 4pm. Many also offer apps that allow you to monitor your usage and manage dynamic tariffs effectively. Regularly reviewing your energy consumption data can help you identify further opportunities to shift usage and reduce your bills.

While Fuse Energy's variable tariffs update quarterly rather than Half-Hourly, they still offer distinct peak and off-peak rates, enabling you to manage your energy consumption smartly. The Fuse app provides clear usage data, helping you understand your patterns and make informed decisions to optimise your energy use and costs.

Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you're paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. Our 24/7 human support team is always on hand with fast response times whenever you need help. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.