What’s Included in Your Battery Installation
Our fully managed service covers everything from the first assessment to commissioning day. No hidden extras.
Free Energy Assessment
We review your energy bills, solar generation data, and usage patterns to size the right battery for your home.
System Compatibility Check
On-site inspection of your existing inverter, consumer unit, and meter to confirm the right integration approach.
Battery Unit Supply
High-quality lithium iron phosphate battery unit, supplied and installed as part of your package.
Hybrid Inverter (where needed)
If your existing inverter is not battery-compatible, we supply and install a hybrid inverter as part of the project.
MCS-Certified Installation
All work carried out by our accredited engineers to MCS standards, with full electrical certification.
DNO Notification
We notify your Distribution Network Operator on your behalf where required for the connection.
Full Commissioning & Testing
We verify charge and discharge cycles, grid interaction, and system performance before we leave site.
Monitoring App Setup
Real-time smartphone access to battery state of charge, solar generation, and home consumption.
10-Year Warranty Registration
We register your battery warranty with the manufacturer on your behalf on installation day.
Smart Tariff Configuration
Time-of-use and smart export schedules configured so your battery charges on cheap overnight rates.
Cable Management
All cabling neatly trunked and routed. We leave your home as tidy as we found it.
Post-Installation Support
Our team is available after installation for any questions about your system or monitoring app.
Understanding Your Battery System
A home battery storage system is made up of four key components. We specify, supply, and install all of them as part of your package.
Battery Unit
The storage core
Modern home batteries use lithium iron phosphate (LiFePO4) chemistry — the safest and longest-lasting lithium technology available. Each unit is rated in kilowatt-hours (kWh), which determines how much energy it can hold. A typical residential battery holds between 5 and 16 kWh. Cycle life exceeds 6,000 full charge-discharge cycles, and manufacturers typically guarantee at least 70% capacity after 10 years.
LiFePO4 chemistry · 6,000+ cycle life · 10-year warranty
Hybrid Inverter
The control centre
A hybrid inverter manages the flow of electricity between your solar panels, battery, home, and the grid simultaneously. It decides when to charge the battery (from solar or cheap grid overnight), when to discharge it (to power your home), and when to export surplus. If you currently have a standard string inverter, we may need to upgrade it — this will be confirmed during your survey.
Solar + battery + grid management · Retrofit or new install
Energy Management System
Smart optimisation
Most modern battery systems include cloud-based energy management software that learns your usage patterns and adjusts charging and discharging schedules automatically. It can integrate with smart tariffs like Octopus Agile or Intelligent Octopus, charging your battery during cheap overnight periods and discharging during expensive peak hours. You can monitor and override settings via a smartphone app.
Smart tariff integration · Automatic scheduling · App control
Optional EPS
Emergency Power Supply
Some hybrid inverters support an Emergency Power Supply (EPS) mode, which allows your battery to power selected circuits in your home during a grid outage. This is not the same as a full backup generator — it typically covers essential loads like lights, sockets, and a fridge rather than high-draw appliances like ovens or showers. EPS capability and eligible circuits will be confirmed during your survey.
Selected circuits only · Subject to inverter compatibility
Which Battery Capacity is Right for You?
Battery size is determined by your evening energy demand, solar generation profile, and whether you want EPS backup. Prices start from around £2,500 for a battery-only retrofit. Here are typical configurations — your exact specification will be confirmed during your free assessment.
Small Household
2–3 bedrooms
Solar pairing
Suits 3–4 kW solar
Coverage
Covers most evening demand
Ideal for smaller homes with modest evening usage, or those who are away during the day.
Average Household
3–4 bedrooms
Solar pairing
Suits 4–6 kW solar
Coverage
Covers most evening and night demand
Our most common battery size. Well-matched to a family home with typical appliance usage.
High Usage / EV
4+ bedrooms or EV charging
Solar pairing
Suits 6–10 kW solar
Coverage
Maximum self-sufficiency
Ideal for larger families, home offices, or those planning to charge an electric vehicle from solar.
| Battery | Nominal capacity | Usable capacity | Expandable to | Chemistry | Warranty | Where it can go |
|---|---|---|---|---|---|---|
| Anker SOLIX X1 (X1-B5-H) | 5 kWh a module | Not published on the datasheet | 180 kWh | Lithium iron phosphate (LiFePO4) | 10 years | Indoors or outdoors (IP66) |
| Fox ESS ECS4800 | 9.32 kWh in the smallest stack (two modules) | About 8.39 kWh (90% depth of discharge) | 32.61 kWh (seven modules) | Lithium iron phosphate (LiFePO4) prismatic cells | 10 years | Indoors or outdoors (IP65) |
Figures from the Anker SOLIX X1 datasheet and the Fox ESS ECS4800 datasheet (v2.0, 1 December 2023), both read on 6 September 2026. Usable capacity is what the battery gives back after the depth of discharge is taken off; Anker does not publish that figure, so we do not state one. We fit both makes with 10-year inverter and battery warranties. An ingress rating says the unit can live outside; it does not decide where yours goes. We settle the position at survey against PAS 63100:2024, which rules out lofts and asks for outdoors where that is practical.
Free survey. We confirm the usable capacity your home actually needs.
How We Install Your Battery System
Every installation follows the same transparent process — no surprises, no shortcuts.
- 1
Free Initial Consultation
No obligation · 30–60 minutesWe start with a conversation — by phone, video call, or at your home — to understand your energy usage, any existing solar system, and what you want a battery to achieve. We’ll advise whether storage is a good fit and answer questions before you commit.
- Review your energy bills, usage patterns, and solar generation data
- Discuss goals: bill savings, backup power, or time-of-use charging
- Honest advice with no sales pressure
- 2
Energy Assessment
On-site · 1–2 hoursOne of our engineers visits your property to assess your current electrical setup, inverter compatibility, and consumer unit capacity. For existing solar customers, we also review your generation data to determine the right battery size.
- Compatibility check: inverter type, consumer unit, and meter
- Review of solar generation and export data (if applicable)
- Assessment of circuits eligible for EPS backup
- 3
Custom System Design
Off-site · 2–5 working daysUsing the assessment data, we design the right battery configuration for your home — selecting capacity, inverter type, and backup scope. For retrofit projects, this includes a compatibility plan for your existing solar installation.
- Battery capacity sizing based on your actual usage profile
- Hybrid or AC-coupled inverter selection
- Integration plan with existing solar or grid-only configuration
- 4
Proposal & Agreement
Presented at your convenienceWe present a fully itemised proposal covering system specification, projected savings, and all costs. There are no hidden fees. Once you’re happy, we sign the agreement and schedule your installation date.
- Line-by-line cost breakdown — no hidden charges
- Projected savings and payback period based on your tariff
- Warranty details and MCS certification confirmed
- 5
Professional Installation
On-site · 1–2 daysOur MCS-accredited team arrives to mount the battery unit, install or upgrade the inverter, complete all electrical integration, and run any necessary cabling. We work cleanly and leave your home tidy.
- Battery unit wall-mounted in a suitable internal or external location
- Inverter installation or upgrade and full electrical integration
- Consumer unit work completed by a qualified electrician
- 6
Commissioning & Handover
On-site + follow-upOnce installed, we commission the system, configure your smart tariff or time-of-use schedule, and walk you through the monitoring app. Your MCS certificate is issued shortly after, and we’re available for any follow-up questions.
- Full system test: charge, discharge, and grid interaction verified
- Monitoring app set up and walked through on the day
- Smart tariff or time-of-use schedule configured to your needs
Battery Storage Solutions
We install battery storage for a range of scenarios. Whether you have existing solar or are starting from scratch, we have a solution that works.
Retrofit to Existing Solar
Most common
- Add battery storage to your existing solar system
- Hybrid inverter upgrade included where required
- Increases self-consumption from ~30% to over 80%
- Typically completed in 1–2 days
Solar + Battery Bundle
New complete installation
- Solar panels and battery installed together
- Hybrid inverter specified from the start — no future upgrades needed
- Full system optimised as a single integrated solution
- Single point of contact for installation and warranty
Standalone Grid Charging
No solar required
- Battery charges overnight on cheap grid tariffs
- Discharges during peak-price evening hours
- No solar panels required — works as a standalone unit
- Future solar-ready: add panels at any time
Frequently Asked Questions
Get answers to the most common questions about battery storage systems, costs, installation, and benefits
What size battery do I need for my home?
Depends on your energy usage and solar generation
Battery size depends on several factors including your daily energy consumption, solar panel output, and backup power requirements. Most homes benefit from 5-15kWh systems.
How much money can I save with battery storage?
Typically £700–£1,200 a year across solar and storage
Battery storage lowers your bills by storing cheap or self-generated energy and using it during expensive peak hours; a typical household saves £700–£1,200 a year across solar and storage.
How long do battery storage systems last?
Modern systems last 10-15 years with comprehensive warranties
Quality lithium battery systems typically last 10-15 years with minimal degradation. They come with comprehensive warranties and are designed for thousands of charge cycles.
How long does battery installation take?
Typically completed in 1-2 days
Most residential battery installations are completed within 1-2 days, including electrical connections, system configuration, and testing. Minimal disruption to your daily routine.
Can I add batteries to my existing solar system?
Yes, most solar systems can be retrofitted with batteries
Battery storage can be added to most existing solar installations. We assess your current system and recommend the best retrofit solution, whether AC or DC coupled.
Are battery systems safe and what maintenance do they need?
Modern batteries are very safe and require minimal maintenance
Modern lithium battery systems are extremely safe with multiple protection systems. They require minimal maintenance and include comprehensive monitoring for peace of mind.
Does battery storage provide backup power during outages?
Backup power requires an optional EPS upgrade
Standard battery storage systems are designed to maximise self-consumption and bill savings. Backup power during grid outages requires an optional EPS (Emergency Power Supply) upgrade with compatible equipment.
Ready to get started?
Get your free, no-obligation battery storage quote. We'll design a system tailored to your home and energy needs.
From our solar wiki
Related guides
Plain-English explanations written by our installers, if you want the detail behind this service.
- Usable Versus Nominal Battery Capacity
- Battery Sizing: Three Worked Examples
- Where can a home battery go? Siting and safety rules
Sources and review
Reviewed- PAS 63100: Protection against fire of battery energy storage systems in dwellings — BSI Group (accessed 2026-09-06)
- Update on PAS 63100 and IET Code of Practice 3rd Edition (9 May 2024) — MCS (accessed 2026-09-06)
- MIS 3012:2025 Issue 1.0 — Battery Installation Standard — MCS Charitable Foundation (accessed 2026-09-06)
- Code of Practice for Electrical Energy Storage Systems, 3rd Edition — Institution of Engineering and Technology (accessed 2026-09-06)
- Engineering Recommendation G98, Issue 2 (2025) — Energy Networks Association, copy hosted by the GB Distribution Code (accessed 2026-09-06)
- Engineering Recommendation G99, Issue 2 (2025) — Energy Networks Association, copy hosted by the GB Distribution Code (accessed 2026-09-06)
- Guidance for generators: Co-location of electricity storage under the RO, FIT, REGO and SEG (v6.2) — Ofgem (accessed 2026-09-06)
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