Solar or Heat Pump First?

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Get Free QuotesShould I get solar panels or a heat pump first?
Solar panels vs heat pump — which to install first: SOLAR PANELS: Cost: £7,000. Savings: £580-£1,100/yr. Payback: 8-12yr. Carbon saved: 1.5-2 tonnes/yr. Complexity: low (1-2 day install). No disruption to heating. HEAT PUMP (ASHP): Cost: £11,000 - £7,500 BUS = £3,500. Savings vs gas: £200-£600/yr. Payback: 6-18yr. Carbon saved: 1-2 tonnes/yr. Complexity: high (3-5 days, may need radiator changes). VERDICT: SOLAR FIRST because: (1) Shorter payback (8-12yr vs 6-18yr). (2) Simpler installation. (3) No disruption to current heating. (4) BUS grant isn't time-limited (install heat pump later). (5) Solar immediately powers future heat pump. OPTIMAL SEQUENCE: Year 1: Solar + hybrid inverter (battery-ready). Year 2-5: Add battery. When boiler fails: Heat pump (using BUS grant). Sources: Ofgem (ofgem.gov.uk), EST (energysavingtrust.org.uk), BUS scheme (ofgem.gov.uk).
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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.
Learn more about how air source heat pumps work alongside solar panels.
The Boiler Upgrade Scheme offers £7,500 towards heat pump installation.
Heat pumps use electricity at 300-400% efficiency, making them ideal partners for solar.
From our sister site Home Heat Pump Guide
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