Heat Pump Tariff

Heat Pump Tariff

Looking for the best heat pump tariff in the UK? You are not alone. As more households switch away from gas, choosing the right electricity tariff has become just as important as choosing the heat pump itself.

There is no single tariff that works best for every home. The ideal choice depends on how your system runs, what other tech you have installed, and how hands on you want to be with optimisation.

Before focusing purely on tariff choice, it is worth sense checking that your system is performing properly. If the heat pump is not running efficiently, even the cheapest tariff will not deliver the savings you expect. I cover the key checks here: Heat Pump Performance for Normal People.

Below I walk through the main tariff routes that UK heat pump owners typically consider.

Heat Pump Performance for Normal People

Octopus Cosy

For many households, Cosy from Octopus Energy is the most obvious starting point when researching a heat pump tariff. It is structured around typical heat pump demand patterns, with multiple lower price windows built into the day.

Full Cosy breakdown: Octopus Cosy

Why some homeowners choose Cosy:

• Designed with heat pump usage in mind

• Three cheaper rate periods across the day

• Encourages steady, low temperature heating

• Simple to run without constant tweaking

Cosy often suits homes that want predictable pricing without needing batteries or complex automation. However, once you introduce more flexibility, it is not always the cheapest option available.

Octopus Cosy Tariff for Heat Pumps | Times, Rates and FAQ

What is the Best Heat Pump Electricity Tariff?

The honest answer is that the best heat pump tariff depends heavily on your setup. What works brilliantly in one home can be mediocre in another.

Detailed comparison guide: Best Heat Pump Tariff.

Here is the quick decision view.

Heat pump only
If you have no battery and limited flexibility, Octopus Cosy is often the easiest place to start.

Heat pump plus battery storage
Time of use tariffs can begin to outperform fixed window tariffs because you can shift demand into cheaper periods.

Heat pump plus solar and battery
With enough flexibility, dynamic tariffs such as Octopus Agile can sometimes deliver the lowest annual costs, but they require more active management.

Heat pump plus EV
EV tariffs like Intelligent Go can be worth modelling, particularly if overnight charging lines up with your heating profile.

Best Heat Pump Tariffs UK 2026 | Save with Renewable Strategies

Summary

Many people searching for a heat pump tariff expect a single clear winner. In practice, the right answer depends on:

• your heat pump performance

• how much load you can shift

• whether you have solar, battery or EV

• how hands on you want to be

Start simple, then optimise once you have real data from your home.