Solar Panel Savings 2026

How much do solar panels save in 2026?

UK solar panel savings 2026 (4kW system, average home): SELF-CONSUMPTION SAVINGS: using solar directly avoids buying at 24.5p/kWh. Without battery (35-50% self-consumption): £350-£520/yr. With battery (70-85%): £620-£870/yr. EXPORT INCOME (SEG): surplus sold to grid at 4-15p/kWh. Without battery: £130-£280/yr. With battery: £80-£180/yr. TOTAL ANNUAL SAVINGS: Without battery: £480-£800/yr. Average: £580/yr. With battery: £700-£1,050/yr. Average: £850/yr. With battery + smart tariff (Flux): £850-£1,500/yr. 25-YEAR TOTAL: Without battery: £12,000-£20,000. With battery: £17,500-£26,250. With Flux: £21,250-£37,500. ALL TAX-FREE. These figures assume current electricity prices. If prices rise (likely): savings increase automatically.