Battery Storage Installation in Devon: Is It Worth It in 2025?
Introduction
Solar panels are a fantastic investment, but without a way to store excess energy, a large chunk of your generation goes back to the grid. That’s where battery storage comes in.
In 2025, more households across Devon — from Plymouth to Exeter, Torquay to rural villages — are adding solar batteries to maximise their energy independence. But is it really worth the cost? Let’s break down the facts.
⚡ What Is Solar Battery Storage?
Battery storage systems capture unused solar energy during the day and store it for use later — typically in the evenings when demand is highest.
Benefits:
Use your own solar power after dark.
Reduce reliance on the National Grid.
Protect against energy price rises.
Access “time-of-use” tariffs (charge at cheap rates, use at peak).
💷 How Much Does Battery Storage Cost in Devon (2025)?
5kWh battery: £3,500–£5,000
10kWh battery: £6,500–£8,500
Hybrid inverter upgrade (if required): £1,000–£1,500
💡 Prices are falling as technology improves, and local Devon installers like Cole Energy often provide better value than national chains.
📊 Savings Potential in Devon
The typical Devon household uses 2,900–3,200 kWh of electricity per year. With a battery:
Increase solar self-consumption from 40% → up to 80%.
Save £400–£800 per year (on top of solar panel savings).
Protect against peak-rate tariffs that are expected to rise in 2025–2026.
🏡 Example Case: Devon Homeowner in Tavistock
Installed 4kW solar system + 10kWh battery.
System cost: £12,000.
Annual savings: ~£1,200.
Payback period: 9–10 years.
Household now imports just 20% of electricity from the grid.
🌍 Why Battery Storage Makes Sense in Devon
Above-average sunshine hours (South West gets ~15% more solar than Midlands/North).
Rural areas with less reliable grid supply = energy security.
Rising energy tariffs make maximising solar more valuable.
Many Devon homes are detached/semi-detached → ideal roof space.
🎁 Grants & Incentives (2025)
0% VAT on solar + battery systems (extended to 2027).
SEG payments for exporting leftover electricity.
Some Devon councils exploring community funding for renewable storage (worth checking locally).
⚖️ Is It Worth It?
For most Devon homeowners, yes.
If you’re home during the day → panels alone save plenty.
If you’re out during the day → a battery ensures you don’t waste solar power.
Rising energy costs mean shorter payback times every year.
📍 Call to Action
Thinking about adding a solar battery in Devon?
Cole Energy provides:
Battery upgrades for existing solar systems
Full solar + battery packages
Expert advice on the right system size for your home
📞 Call us today on +447939190302
📧 Email: hello@coleenergy.co.uk
