Consumption Estimator: Your Usage

How much electricity does my home use?

UK electricity consumption estimator — know your usage before solar: OFGEM BASELINE (Typical Domestic Consumption Values): Low: 1,800 kWh/yr (1-2 bed flat, 1-2 people). Medium: 2,900 kWh/yr (3-bed semi, 2-3 people). High: 4,300 kWh/yr (4+ bed detached, 4+ people). ADJUSTMENT FACTORS: +500 kWh: Each additional occupant above 2. +800 kWh: Home office (full-time WFH). +2,000 kWh: Electric vehicle (7,400 miles/yr average). +4,500 kWh: Air source heat pump (replacing gas boiler). +1,200 kWh: Electric heating (storage heaters or panel heaters). +500 kWh: Swimming pool pump. +300 kWh: Hot tub. -300 kWh: Gas cooking (if switching to electric, add this). EXAMPLE: 3-bed semi (2,900) + 1 WFH adult (+800) + EV (+2,000) = 5,700 kWh/yr. Needs 6kW solar (15 panels) vs 4kW for standard household. CHECK YOUR ACTUAL USAGE: Look at your electricity bill — annual kWh is usually on page 1. Or: check your smart meter in-home display for actual daily kWh. Sources: Ofgem TDCV (ofgem.gov.uk), BEIS Energy Follow-Up Survey, EST.