Solar vs Storage Heaters

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.