Solar Panels vs Battery Storage: Do You Need Both?
Short answer
Solar panels generate the electricity; battery storage lets you use it at night. They complement each other rather than compete.
Which suits you
Solar Panels: Homes wanting to generate power
Battery Storage: Homes wanting to store solar power
Side by side
| Criteria | Solar Panels | Battery Storage |
|---|---|---|
| Upfront cost | £4500–£8000 | £5000–£10000 |
| Could save (est.) | up to £555/yr | up to £192/yr |
| Efficiency | 25 year lifespan | 10 year lifespan |
| Government grant | 0% VAT | 0% VAT |
| Carbon impact | Low carbon | Higher carbon |
| Installation time | 1–3 days | 1–2 days |
| Best for | Homes wanting to generate power | Homes wanting to store solar power |
Which should you choose?
Solar panels generate the electricity; battery storage lets you use it at night. They complement each other rather than compete.
If you’re primarily concerned with upfront cost, Battery Storage (typically £5000–£10000) is generally the lower-cost option. If you want potentially lower running costs and a smaller carbon footprint long-term, Solar Panels may offer better long-term value.
Solar Panels: pros and cons
Where it wins
- 25 year lifespan efficiency
- Could save up to £555 a year
- Lower carbon footprint
Where it struggles
- Higher upfront cost (£4500–£8000)
- Best suited to Homes wanting to generate power
- May need a property assessment first
Battery Storage: pros and cons
Where it wins
- Lower upfront cost (£5000–£10000)
- Could save up to £192 a year
- Best suited to Homes wanting to store solar power
Where it struggles
- 10 year lifespan only
- Higher carbon emissions
- Less future-proof
Questions about solar panels and battery storage
Which is cheaper — solar panels or battery storage?
Which saves more money — solar panels or battery storage?
Which is more efficient — solar panels or battery storage?
Can I install both solar panels and battery storage?
Do both qualify for government grants?
Get quotes for either, or both
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