COMPARISON
Solar with battery vs without
A battery lets you use more of your own solar and, on a suitable tariff, benefit from grid arbitrage. Everything is confirmed on your written quote.
- Installed through our MCS-certified partners
- Interest-free credit up to £30,000, subject to status
- Local Scottish office in Dundee
Quick answer
Adding a battery lets you store daytime solar and use it in the evening, rather than exporting the surplus, and on a suitable tariff it can charge on cheaper overnight electricity. Whether it suits your home depends on your usage and tariff. Your survey and written, no-obligation quote confirm it. We install through MCS-certified partners.
Last updated: 17 October 2026
Should I get a battery with my solar panels?
It depends on your home. Without a battery, you export the solar you cannot use at the time. With a battery, you store that energy and import less at peak times, and on a suitable tariff you can also charge on cheaper overnight electricity (grid arbitrage). A survey shows whether it makes sense for your home.
Source: Checked October 2026
| Feature | With battery | Without battery |
|---|---|---|
| System cost (6kWp) | Priced at survey | Priced at survey |
| Use of your own solar | Daytime surplus stored for the evening | Used as it is generated, during daylight |
| Grid arbitrage benefit | Yes — charges on cheap overnight, discharges at peak | No |
| Export | Surplus after battery is full | All surplus exported |
| Backup during power cut | Possible with backup gateway | No — system shuts down when grid drops |
| 0% VAT | Yes, until 31 March 2027 | Yes, until 31 March 2027 |
General comparison only. Results vary by property, roof orientation, consumption, weather and tariff. VAT source: HMRC. Checked October 2026. Your survey and written quote confirm what applies to your home.
Cite or embed this
Solar with vs without battery comparison — Scottish Energy Efficiency. https://solarbatteries.energy/solar-vs-battery/
Go deeper
- Battery storage for Scottish homes — options, specs, and calculator
- Solar panels for Scottish homes — hardware, generation, and when solar is not worth it
- Is a solar battery worth it in Scotland? — how a battery's value is made up
- Export tariffs explained — how Smart Export Guarantee payments work with a battery
People also ask
With a battery you use more of your own solar electricity in the evening, and on a suitable tariff you can charge on cheaper off-peak power. How much more depends on your home, which we model at survey. The battery is priced at survey and confirmed on your written quote.
Charging your battery on cheaper overnight electricity and using that stored electricity during peak hours. It needs a tariff with a peak/off-peak spread, and works alongside storing solar.
Technically possible but not practical for most Scottish homes. A well-sized system can cover much of your daily use, but full off-grid requires oversized panels, multiple batteries, and a backup generator for winter.
Related reading
Want a written quote for your home?
No-obligation survey. Interest-free credit up to £30,000, subject to status.
- 1
Tell us about your home
Call us or use the quote form. It takes about two minutes.
- 2
Survey
We check your roof, shading, fuse board and electricity use.
- 3
Written quote
Equipment, price and terms in writing, with no obligation.
No-obligation survey
Get a clear, written quote for your home
We look at your roof and electricity use, then send a written quote showing the equipment, the price and the terms, so you can decide in your own time.
- Installed through our MCS-certified partners
- Interest-free credit up to £30,000, subject to status
- Local Scottish office in Dundee