With energy prices fluctuating across the UK, more homeowners and business owners in Taunton are looking for smarter ways to cut monthly utility costs. Investing in renewable energy is one of the most effective solutions, but the big question remains: how much do solar panels and battery storage actually save?

The Impact of Solar Panels on Your Energy Bills
A typical 4kW solar panel system in Somerset generates roughly 3,800 to 4,000 kWh of clean electricity each year. For an average household, installing solar panels alone can reduce annual electricity bills by 30% to 50%, resulting in direct savings of roughly £400 to £600 per year.
Without storage, any solar power you don’t use during daytime hours is exported back to the grid via the Smart Export Guarantee (SEG). While this brings in a modest income, using that energy yourself yields far greater financial returns.
Why Adding Battery Storage Changes the Game
A solar battery allows you to store excess power generated during sunny hours to use during the evening. Combining solar PV with battery storage dramatically increases your self-consumption rate from around 30% up to 80% or more.
- Combined Savings: Pairing solar panels with a battery can slash your reliance on grid electricity, leading to total annual bill reductions of up to 70% to 90%.
- Financial Return: A combined system can save the average UK home £750 to £1,200+ per year.
- Off-Peak Tariffs: Batteries also allow you to charge from the grid overnight on ultra-low off-peak tariffs during winter, keeping your energy costs low year-round.

Maximising Energy Efficiency Across Your Property
Integrating renewables into your home delivers maximum ROI when paired with modern electrical infrastructure:
- EV Charger Installation: Charging your electric vehicle using excess solar energy—or stored off-peak battery power—reduces driving costs to just pennies per mile.
- Full Property Rewires: Updating older wiring ensures your consumer unit and electrical circuits can safely and efficiently handle high-demand additions like solar inverters, battery storage, and EV chargers.
Payback Period & Long-Term Returns
With the current 0% VAT rate on residential solar and battery installations, initial setup costs are more accessible than ever. Most systems pay for themselves within 6 to 9 years, providing over 15 to 20 years of free, green electricity afterward.
Whether you need a full property rewire, an EV charger installation, or a bespoke solar panel and battery system, getting your electrical setup professionally fitted is key to long-term efficiency. Contact our Taunton-based team today to request a quote.