EDF Heat Pump Tracker review (September 2026)

Against the price cap in London

The Ofgem cap for a single-rate direct debit meter here is 26.35p per kWh plus 44.78p a day. Today this tariff averaged 2.50p below the cap unit rate.

This compares one day’s unit rates only. What you pay also depends on the standing charge and on when you use electricity, so treat this as an indication rather than a saving. Cap period 2026-07-01 to 2026-09-30.

Estimated annual cost

£760a year

2,500 kWh a year in London, at 23.85p per kWh plus 44.78p a day standing charge.

Our estimate, using the average price EDF Heat Pump Tracker actually charged over the last 31 days. EDF Heat Pump Tracker prices change through the day, so what you pay depends on when you use electricity. This applies the time-weighted average price to every unit, equivalent to spreading usage evenly across the recorded price periods.

EDF Energy quotes £822 for the same household. Their published illustration does not use our measured-history basis, so keep it separate rather than treating the two figures as like-for-like forecasts.

What you need

• An air source heat pump — this tariff is not sold to households without one
• A smart meter sending half-hourly readings, which EDF will provide at no extra cost
• An EDF electricity account and payment by Direct Debit
• A thirty-six month product term, with no exit fees or tie-in
• Electricity only — any gas supply remains on a separate tariff

What drives what you pay

• Whether your heat pump can be scheduled to do its heaviest work inside the two discount windows
• How well the building holds heat, because pre-heating only pays if the warmth is still there hours later
• The heat pump’s efficiency across the year, which moves far more of the bill than the tariff does
• Ofgem’s price cap, which sets the base rate every quarter

If you have an EV

An EV tariff may be simpler if most of your flexible electricity is car charging. Intelligent Octopus Go schedules compatible cars or chargers; Octopus Go and EDF Go Electric use fixed overnight windows.

If you have solar without a battery

The import tariff and the rate paid for exported electricity are separate decisions. A straightforward export tariff can be more useful than a peak-weighted battery tariff when generation is exported as it happens.

If you have solar and a home battery

A paired import/export tariff may fit better because a battery can charge in a cheap period and discharge or export in a more valuable one. The gross rate spread is not the same as profit after losses and degradation.

If you have a heat pump

EDF Heat Pump Tracker already accounts for heat-pump use. Compare its discounted periods, any peak penalty and how easily the building can retain heat between them.

Cosy Octopus

The closest thing to a like-for-like comparison in the market: both are heat-pump tariffs with cheap windows placed around a heating cycle. Cosy is priced independently of the cap and does have expensive hours; Heat Pump Tracker discounts against the cap and has none. Cosy can go lower; this one cannot go higher, which for a heating load you cannot defer is worth something.

EDF FreePhase Static

FreePhase Static fixes three bands for twelve months and includes an expensive late-afternoon period. Heat Pump Tracker follows EDF’s Standard rate, gives two daily discounts and has no peak uplift. A heat-pump household should compare the live band prices and how well its controller can use each schedule.

EDF Standard Variable

Identical base rate, with two discount windows added and nothing taken away. For a heat pump household that can schedule at all, this is straightforwardly the better tariff — there is no peak band for the discount to be paid for out of.