Home Energy Storage Experts
Battery Storage Installation in London & Essex
Store surplus solar energy, charge from cheap overnight tariffs, and power your home during peak hours. PowerArc installs leading battery systems from GivEnergy, Tesla Powerwall, and more.
- Qualified electricians, work certified to BS 7671
- Fixed quote agreed before any work starts
- Covering East London & Essex from Hornchurch
- Qualified electriciansWork certified to BS 7671
- 24/7 emergency lineDay, night and weekends
- Fixed quotesAgreed before work starts
- Local to youBased in Hornchurch, RM11
Battery storage is the missing piece of the home energy puzzle. Whether you already have solar panels or want to take advantage of time-of-use electricity tariffs, a home battery allows you to store cheap or free energy and use it when grid prices are highest. PowerArc designs and installs battery systems tailored to your energy profile, maximising savings and energy independence.
Battery Storage Installer Near Me: Energy Independence in East London
PowerArc installs home and commercial battery storage systems across East London and Essex, serving Romford, Hornchurch, Chigwell, Stratford, Woodford, Wanstead, Loughton, and all surrounding areas. We provide free energy assessments to determine the optimal battery capacity for your household, whether you're pairing it with existing solar panels or using it standalone with a smart tariff like Octopus Flux or Intelligent Go.
Solar + Battery: Maximum Savings
Solar panels alone typically allow you to use only 30-40% of the electricity they generate, because most generation happens during the day when you're at work. A battery captures surplus daytime generation and releases it during the evening peak, increasing self-consumption to 70-85%. PowerArc installs battery systems that integrate seamlessly with your existing or new solar PV installation. Our engineers configure the system to prioritise self-consumption, ensuring your home uses stored solar energy before drawing from the grid. The financial benefit is significant — essentially doubling the value of your solar investment.
What we cover
Battery storage: what's included
- GivEnergy battery installation
- Tesla Powerwall installation
- Retrofit to existing solar
- New solar + battery packages
- Smart tariff configuration
- Hybrid inverter installations
- Multi-battery systems
- Commercial battery storage
- Energy monitoring setup
- Battery system maintenance
Smart Tariff Optimisation Without Solar
You don't need solar panels to benefit from battery storage. With time-of-use tariffs like Octopus Flux, Octopus Intelligent Go, or Agile, electricity prices vary throughout the day. A battery charges during the cheapest hours (typically 11:30 PM - 5:30 AM) and powers your home during expensive peak hours (4 PM - 7 PM). This tariff arbitrage can save homeowners £500-£900 per year on electricity bills even without solar panels. PowerArc configures your battery's charge/discharge schedule to match your specific tariff structure, ensuring maximum savings from day one.
Certified Battery Storage Installers
Battery storage installation involves both high-voltage DC systems and standard AC electrical connections, requiring specialist knowledge and certification. PowerArc's qualified electricians are fully trained in battery system installation, including DC isolation procedures, battery management system (BMS) configuration, and safe commissioning practices. All installations comply with BS 7671 and manufacturer-specific requirements.
Home Battery Storage Solutions in East London & Essex
The UK energy landscape is changing rapidly. With electricity prices volatile and smart tariffs becoming mainstream, home battery storage has evolved from a luxury to a smart financial decision. Whether you’re a solar panel owner looking to maximise self-consumption or a savvy homeowner wanting to exploit cheap overnight electricity, PowerArc provides expert battery storage solutions designed for real-world savings.
Choosing the Right Battery Size
The ideal battery capacity depends on your energy usage, solar system size, and goals. A typical UK household uses 8-10 kWh per evening/night. A 5 kWh battery suits smaller homes or those with solar wanting to capture surplus generation. A 9.5 kWh system covers most households. For larger homes or those on smart tariffs, stacking multiple batteries provides even greater independence.
GivEnergy vs Tesla Powerwall
Both are excellent systems. GivEnergy offers a modular, expandable design with market-leading smart features and UK-based support. Tesla Powerwall provides a sleek, all-in-one unit with excellent reliability. PowerArc installs both brands and provides impartial advice based on your specific requirements, existing solar setup, and budget.
Battery Storage & the Future of Energy
Home batteries are increasingly being integrated into virtual power plant (VPP) programmes, where your battery can earn additional income by supporting the grid during peak demand. As vehicle-to-grid (V2G) technology matures, your EV battery could also serve as home storage. PowerArc installs future-ready systems designed to take advantage of these emerging opportunities.
24/7 emergency electrician
No power, a burning smell or sparking socket?
Switch off at the fuse board if it's safe to, then call us. Our emergency line is answered day and night, every day of the year.
What customers say
Recent Battery storage jobs
“GivEnergy battery added to our existing solar panels. We went from using 35% of our solar to over 80%. The savings are remarkable. Should have done it sooner.”
“No solar, just using the battery with Octopus Go tariff. Charging at 7.5p and using it during the day instead of paying 30p. It's paying for itself fast.”
“Tesla Powerwall installation was seamless. The app shows exactly how our energy flows. We're barely using any grid electricity during summer. Incredible technology.”
Questions
Battery storage FAQs
How long does a battery installation take?
A standard battery installation takes 4-6 hours. If combined with solar panel installation, the total project typically takes 1-2 days.
Can I add a battery to my existing solar panels?
Yes, in most cases a battery can be retrofitted to an existing solar PV system. We assess your current inverter and wiring to determine the best integration method — either AC-coupled or via a hybrid inverter upgrade.
How long does a home battery last?
Most home batteries are warrantied for 10-12 years or a specified number of charge cycles (typically 6,000-10,000). Real-world lifespan often exceeds the warranty period. GivEnergy offers a 12-year warranty.
Do I need solar panels to have a battery?
No, batteries work extremely well on their own with time-of-use tariffs. You charge during cheap overnight hours and discharge during expensive peak periods, saving significant money without any solar panels.
How much can I save with battery storage?
Savings depend on your setup. Solar + battery users typically save £800-£1,500/year. Battery-only users on smart tariffs can save £500-£900/year. PowerArc provides personalised savings estimates during your free consultation.
Where is the battery installed?
Batteries are typically wall-mounted in a garage, utility room, or externally. They require a flat wall surface and adequate ventilation. GivEnergy units are IP65-rated and can be installed outdoors.
Related services
Often booked with Battery storage
EV
EV chargers
Smart home and workplace EV charge points installed, including supply and earthing checks.
View service
Solar
Solar PV
Solar panel systems designed around your roof and usage, with DNO notification handled.
View service
24/7
Emergency electrician
Power loss, tripping, burning smells or sparking sockets. Our dispatch line is answered day and night.
View serviceWhere we work
Battery storage across East London & Essex
Based on Hornchurch High Street, our electricians cover these areas every week.
Talk to an electrician
Tell us what you need. We'll come back with a fixed quote.
Call, WhatsApp or send the quick form. A qualified electrician looks at every request, not a call centre.