October 2026
UK energy saving guides
Guides for the products on the homepage, plus yearly charging costs for 100+ popular UK electric cars. Costs use Ofgem’s October–December 2026 electricity average of 26.32p/kWh and Intelligent Octopus Go at 7.6p/kWh from 23:30 to 05:30. Some existing customers on older fixed deals report lower rates. Check your own bill. Assumptions are written in the guide. Shop prices are not.
Not financial advice. Check your supplier. Last checked 16 Oct 2026. Electricity is at 0% VAT from October 2026 to March 2027. The price cap changes on 1 January 2027 (Ofgem announces by 25 November).
Best products for off-peak energy savings
Six products at 7.6p and 26.32p: dehumidifier, two heated airers, smart plugs, a 768Wh power station and an air fryer.
LaundryDrying clothes cheaply in a UK winter
A 198W heated airer, a 1.4 kWh heat-pump assumption, and a six-hour dehumidifier session, at 7.6p and at 26.32p.
LaundryIs a heat-pump tumble dryer worth it?
Per-cycle and per-year electricity on stated assumptions, plus Which?’s published annual averages. No payback month.
LaundryUsing a dehumidifier to dry laundry
What a six-hour laundry mode costs, and why the calculator’s 0.8 kWh figure is a separate round number.
Smart plugsSmart plugs that show watts and shift off-peak
18.7p saved per kilowatt-hour moved from 26.32p to 7.6p, and which loads belong on a timer.
Electric vehiclesHome EV charging on Intelligent Octopus Go
8,000 miles at 4.0 mi/kWh: £152 off-peak against £526 at the cap, and Octopus’s 54p public average.
Electric vehiclesEV charging costs by car
100+ popular UK models at 8,000 miles. Pick a car, or compare the full table. Off-peak is 7.6p/kWh (23:30–05:30).
HeatingSmart thermostat schedules and UK heating bills
Gas at 7.97p/kWh, what a 2017 UK Nest study measured, and how to read a percentage as units.