Solar vs Storage Heaters

By Home Solar Guide Team||comparison
Independently written | Plain-English guide
Solar vs storage heaters
Storage heaters: 100% efficient. Heat pump + solar: 300-400% efficient. The maths is clear.

Price a solar and battery system

Battery sizing changes your savings more than panel count does. Get a price for a system sized to how you actually use electricity.

Price Solar + Battery

Free, no obligation. MCS-certified installers only.

System
Heat pump
Savings
Free power

Price a solar and battery system

Battery sizing changes your savings more than panel count does. Get a price for a system sized to how you actually use electricity.

Price Solar + Battery

Should I replace storage heaters with solar?

Night storage heaters vs solar + heat pump: STORAGE HEATERS: Use cheap overnight electricity (Economy 7 at 9-12p/kWh) to charge heat bricks. Release heat during the day. Efficiency: 100% (1kWh in = 1kWh heat). Annual cost: £1,200-£2,000 for a 3-bed home. SOLAR + HEAT PUMP: Solar generates free electricity. Heat pump uses 1kWh to produce 3-4kWh of heat (COP 3-4). Effectively 300-400% efficient. Annual cost with solar: £200-£500. SAVINGS: £800-£1,500/yr by switching from storage heaters to solar + heat pump. TRANSITION PLAN: (1) Install solar first (saves £400-£800/yr on existing electricity). (2) Switch to standard tariff (solar covers daytime). (3) Add heat pump when budget allows (£3,500 after BUS grant). (4) Remove storage heaters.

Frequently Asked Questions

Related: Home Heating Systems

Solar panels are most powerful when combined with an efficient heating system. Heat pumps use solar-generated electricity to heat your home at 300-400% efficiency — making them the ideal partner for solar.

air source heat pump guide

Learn more about how air source heat pumps work alongside solar panels.

heat pump grants and the BUS scheme

The Boiler Upgrade Scheme offers £7,500 towards heat pump installation.

heat pump running costs in the UK

Heat pumps use electricity at 300-400% efficiency, making them ideal partners for solar.

From our sister site Home Heat Pump Guide

Price a solar and battery system

Battery sizing changes your savings more than panel count does. Get a price for a system sized to how you actually use electricity.

Price Solar + Battery

Free, no obligation. MCS-certified installers only.