Annual Savings Breakdown

By Home Solar Guide Team||money
Independently written | Plain-English guide
Annual savings breakdown
Three income streams: bill reduction + SEG + tariff arbitrage = £580-£1,174/year.

What would this actually cost at your home?

Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.

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Breakdown
Bill reduction
SEG income
Tariff arbitrage

What would this actually cost at your home?

Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.

Get an Installed Price

Where do solar savings come from?

4kW system annual savings breakdown: (1) Bill reduction (self-consumption): 2,000 kWh at 26.32p = £526 (no battery) or 3,200 kWh at 26.32p = £842 (with battery). (2) SEG export income: 2,000 kWh at 4.5p = £90 (no battery) or 800 kWh at 4.5p = £36 (with battery — less surplus to export). (3) Tariff arbitrage (Octopus Flux with battery): buy at 10p, export at 24p = £300/yr. TOTAL: £580 (panels only) to £1,120 (battery + Flux). Each stream is independent — optimise all three for maximum value.

Frequently Asked Questions

Related: Home Heating Systems

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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

What would this actually cost at your home?

Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.

Get an Installed Price

Free, no obligation. Takes about 2 minutes.