Can I add a battery to my existing solar panels?

Yes. Battery retrofits are one of our most common installations. We assess compatibility with your existing inverter and wire in the battery with minimal disruption. Most retrofit installations take 4-6 hours. If your inverter is not compatible, we can quote for a hybrid inverter replacement as part of the same project.

Is solar battery storage worth it in 2026?

For most Hampshire homeowners, yes. Without a battery, you typically self-consume 30-40% of your solar generation. A battery increases this to 70-85%, saving an additional £350-600/year at current electricity prices. On a smart tariff (Octopus Agile, Intelligent Flux), savings can exceed £1,100/year combined with solar. Typical payback: 7-10 years on a system rated for 15+ years.

What size battery do I need?

For a 3-bed home with 4-5kW solar: 10kWh battery. 4-bed home with 5-6kW solar: 13.5-15kWh. Large home or EV charging: 20kWh+. A battery should be sized to store roughly 80% of your daily solar generation in summer. We calculate the optimal size at your free site survey based on your electricity usage, roof size, and EV needs.

Which is better: GoodWe, Fox ESS, SigEnergy or GoodWe?

All four brands we install use LiFePO4 (lithium iron phosphate) chemistry — the safest type. GoodWe: best warranty extension (free 10-year PLUS+), excellent value. Fox ESS: UK market leader, proven Octopus Flux compatibility. SigEnergy: the only brand with integrated 25kW DC EV charging and V2H — ideal for EV households. We recommend the right brand for your specific situation.

Can my battery charge from the grid overnight?

Yes. On tariffs like Octopus Agile, Go, or Intelligent, electricity costs as little as 7p/kWh between midnight and 6am. Your battery charges overnight at this rate and discharges during daytime/evening peak rates of 25-30p/kWh. The difference (approximately 18-23p/kWh) on a daily 10kWh battery cycle creates savings of £600-800/year from tariff arbitrage alone, on top of solar self-consumption savings.

Where can a battery be installed in my home?

The most common locations: garage (preferred — easy ventilation and service access), utility room on an external wall, or outdoor weatherproof cabinet (for bungalows without garages). Under PAS 63100:2024, batteries cannot be installed in loft spaces, bedrooms, under stairs, or main living areas. We assess your property and recommend the best location at the survey.

Do batteries qualify for the 0% VAT rate?

Yes. Standalone battery storage systems qualify for 0% VAT (since February 2024). This applies whether you are adding a battery to existing solar or installing a new combined system. The 0% rate is confirmed until March 2027 — meaning you save 20% on the system cost versus pre-2024 prices.

Solar Battery Storage · Farnborough · 0% VAT

Battery Storage
Farnborough

MCS-certified solar battery installation in Farnborough. Store free solar energy, charge cheaply overnight, and slash your electricity bills by up to £850–1,150/yr. 0% VAT applied.

Book Free Battery Survey 07833 448687

Annual saving

£850–1,150/yr

Payback period

8–10 years

Self-consumption

Up to 85%

System warranty

10–12 years

MCS Certified Installer

HIES Consumer Protection

0% VAT on All Systems

One-Day Installation

10-Year Workmanship Guarantee

Why Farnborough?

Battery Storage in Farnborough

Farnborough's technology-savvy population and modern housing estates make it a strong market for battery storage. The town's proximity to the aviation and defence industries means a high proportion of technically-minded homeowners who understand the value proposition of energy storage technology.

Farnborough households tend to be early adopters of technology including EVs, smart home systems, and energy management. Battery storage integrates naturally with these existing investments, providing a single control point for solar, storage, and vehicle charging. The town's commuter population also means batteries capture daytime solar that would otherwise be exported.

Farnborough is 35 miles from our base. We serve the GU14 area and surrounding postcodes for customers who prioritise installation quality and brand selection. The town's modern housing stock with garages provides ideal battery placement conditions.

Without battery

Self-consumption

30–40%

With 10kWh battery

Self-consumption

70–85%

With smart tariff

Annual combined saving

£850–1,150/yr

Battery Systems

Battery Systems We Install in Farnborough

All 0% VAT · MCS certified · Installed and commissioned by qualified engineers · DNO notification included

Best Value

GoodWe Lynx Home U

5kWh or 10kWh

£3,600–4,200 installed

IP65 outdoor rated · Free 10-yr warranty extension

How Battery Installation Works in Farnborough

Free Survey Booked

Call us or submit the form. We'll arrange a no-obligation site survey at a time that suits you — usually within 3-5 days.

System Designed

We assess your roof, consumption data, existing inverter, and EV needs to design the optimal battery system and size.

Transparent Quote

Fixed-price quote with no hidden extras. All costs include supply, install, commissioning, DNO notification, and G98/G99 compliance.

One-Day Installation

Most battery installations are complete in a single day. We handle everything from wiring to app configuration and handover.

Monitor & Optimise

Your battery's app tracks generation, storage, and export in real time. We configure smart tariff integration before we leave.

Local Recommendations

Recommended Battery System for Farnborough

Farnborough estate homes: Fox ESS 10.24kWh in garage. Executive homes: SigEnergy SigenStor with V2H capability. Technology-focused households: SigEnergy for its superior app integration and smart energy management.

Grid & Infrastructure

Farnborough's grid serves both residential areas and the Farnborough Business Park. Peak-time pricing differentials on smart tariffs are among the highest in Hampshire, making battery arbitrage particularly effective.

Savings Potential

Farnborough homeowners report annual savings of £600-850 from battery storage. The technology-friendly population means high adoption of smart tariffs, which maximises arbitrage savings.

Complete Renewable Energy in Farnborough

Battery storage works best as part of a complete home energy system. Combine with solar panels for free generation and an EV charger for zero-cost motoring.

Solar Panels Farnborough

Generate free electricity from your roof

EV Chargers Farnborough

Charge your EV from stored solar energy

Solar + Battery Packages Solar + EV + Battery Bundles Compare Battery Brands

Customer Reviews

Battery Storage Customers in Farnborough

Added a Fox ESS 10kWh battery to our existing solar. Went from exporting 60% of our generation to using 85% of it ourselves. Electricity bill under £20/month now.

James T., Fareham · Fox ESS 10.24kWh

The SigEnergy system charges overnight on Octopus Agile at 7p and discharges in the evening at 28p. The payback calculation just made so much sense.

Sandra K., Fareham · SigEnergy SigenStor 9kWh

Battery Storage FAQ — Farnborough

Battery storage costs depend on capacity. A 10kWh system (suited to most 3-4 bed homes) costs £3,600-5,500 installed, including all wiring, DNO notification, and commissioning. All installations are 0% VAT. Popular brands we install: GoodWe Lynx (from £3,600), Fox ESS (from £3,800), SigEnergy SigenStor (from £5,200).