Updated March 2026
Solar + Battery Storage Bundles
Combining solar panels with battery storage is the smartest way to maximise savings. Store surplus solar energy for evenings and reduce grid dependency by up to 80%.
Key Takeaways
- Bundling saves 10-20% vs buying solar and battery separately
- Self-consumption increases from ~40% (solar only) to 70-80% (solar + battery)
- Both solar panels and batteries qualify for 0% VAT
- Typical bundle payback period: 6-9 years
Bundle Pricing Guide
| Bundle Size | Solar | Battery | Bundle Price | Savings vs Separate | Annual Savings |
|---|---|---|---|---|---|
| Starter | 3kW (8 panels) | 3.6kWh | £6,000-£7,500 | ~£800 | £700-£900/yr |
| Standard | 4kW (10 panels) | 5.2kWh | £7,500-£10,000 | ~£1,200 | £900-£1,300/yr |
| Premium | 5kW (13 panels) | 9.5kWh | £10,000-£13,000 | ~£1,500 | £1,200-£1,600/yr |
| Max | 6kW (15 panels) | 13.5kWh | £13,000-£17,000 | ~£2,000 | £1,500-£2,000/yr |
Prices include installation and 0% VAT. Actual prices vary by location, roof complexity, and chosen equipment. Annual savings based on average UK electricity rates.
Solar Only vs Solar + Battery
Solar Only
- ~40% self-consumption rate
- Surplus exported during the day (4-15p/kWh SEG)
- Full grid dependency after sunset
- Lower upfront cost
- 5-7 year payback
Recommended
Solar + Battery Bundle
- 70-80% self-consumption rate
- Store surplus for evening/overnight use
- Minimal grid dependency
- Time-of-use tariff arbitrage opportunities
- 6-9 year payback
Frequently Asked Questions
Yes. Bundling typically saves 10-20% compared to separate purchases. Installation labour is shared and many installers offer package pricing. A typical 4kW solar + 5kWh battery bundle costs GBP 7,500-10,000.
Adding a battery increases self-consumption from ~40% to 70-80%, saving an additional GBP 300-500 per year. The battery pays for itself in 5-8 years from the additional savings.
For a 4kW solar system, a 5kWh battery is a good starting point. Larger homes or those with EVs may benefit from 10kWh+. Your installer will recommend the right size based on your usage patterns.
Yes, but bundling from the start is more cost-effective due to shared installation labour. Retrofitting may require a hybrid inverter or AC-coupled battery system.
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Our MCS-certified installers will design the perfect solar and battery package for your home. Free, no-obligation quotes.
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