Battery Storage Crawley & Sussex
Store your solar power and cut your reliance on the grid, installations from £2,999
Get a QuoteLooking for battery storage in Crawley? Electrotec Power Solutions supplies and installs solar battery systems for homes and businesses across Crawley, West Sussex, East Sussex and Surrey, whether you’re adding a battery to an existing solar panel system or want a standalone system to make the most of an off-peak tariff. Our MCS-accredited team designs the right setup for your property, with installations starting from £2,999.
As a FoxESS Elite Installer and Tesla Powerwall installer, we supply and fit the full range of leading battery brands. Our FoxESS lineup includes the EP series, the scalable CQ7 series, HV2600 and the latest Mira — all of which integrate seamlessly with FoxESS hybrid inverters for a fully managed energy system. We’re also approved installers of the Tesla Powerwall 3, with its built-in solar inverter and 13.5kWh of expandable storage, plus SolarEdge batteries for customers with existing systems from those manufacturers. Whether you need a single battery unit or a stacked multi-unit installation, we design and install the right setup for your home or business. Contact us today for a free survey and quote.
Saving on Your Energy Bills With a Battery Installation
Take Control of Your Home or Business' Energy Usage
Reduce Peak-Time Charges
Charge overnight on cheap rates and use stored power when grid electricity costs the most.
Sustainability
Use more of the clean energy you generate yourself and rely less on the grid.
Manage Your Power Usage
Monitor and control your battery in real time from the FoxESS app.
Battery Storage, Explained
Everything You Need To Know About Battery Storage
From how it works without solar to commercial installations, here's what to consider before you invest in battery storage.
Solar panels generate electricity when the sun shines — but most households use the majority of their energy in the morning and evening when generation is at its lowest. Without a battery, that free daytime electricity gets exported back to the grid for a fraction of what you paid for it.
A solar battery changes that. It stores the energy your panels produce during the day and makes it available exactly when you need it — in the evening, overnight, or during a power cut. The result is less reliance on the grid, lower electricity bills, and greater energy independence regardless of what happens to energy prices in the future.
You don't need solar panels to benefit from battery storage. A standalone battery system can charge overnight using cheap off-peak electricity — particularly useful if you're on an Octopus Energy, Economy 7 or similar time-of-use tariff — then discharge during peak hours when grid electricity is most expensive.
For homes on agile or flexible tariffs, a battery system can reduce your effective electricity cost to as little as a few pence per kWh. Electrotec installs standalone battery systems across West Sussex and the South East, fully configured for your tariff and energy usage pattern.
Residential battery storage systems installed by Electrotec start from £2,999 for a single-unit FoxESS installation, fully fitted and commissioned. The final cost depends on the battery capacity you need, your property's existing electrical setup, and whether you're pairing with a new or existing solar system.
Tesla Powerwall 3 installations are available from our team and are priced on application — as a premium product, the Powerwall 3 carries a higher price point but delivers a built-in solar inverter, whole-home backup capability, 13.5kWh of expandable storage, and industry-leading software integration.
All installations include a full site survey, system design, professional installation by our in-house team, commissioning, and app setup so you can monitor your system in real time.
As a FoxESS Elite Installer we stock and install the full FoxESS battery range in Crawley and across Sussex and Surrey. This includes the FoxESS EQ series (EQ4800), EP series, HV2600 and the latest Mira battery system. We also carry out HV2600 to Mira upgrades and EP to EQ upgrades for existing FoxESS customers — a cost-effective way to increase capacity and update your system to the latest technology without replacing your inverter. If you're searching for a FoxESS battery installer in Crawley, Horsham, Reigate, Guildford or anywhere across Sussex and Surrey, Electrotec should be your first call.
Battery storage isn't just for homeowners. Commercial properties across West Sussex are increasingly using large-scale battery systems to reduce peak demand charges, maximise the value of on-site solar generation, and protect against grid outages.
Electrotec designs and installs commercial battery storage solutions for businesses of all sizes — from small office units to industrial facilities. Combined with a commercial solar installation, a battery system can dramatically reduce your reliance on grid electricity and lock in energy costs at a predictable fixed rate.
Contact us for a free commercial energy assessment and we'll model your potential savings based on your actual energy consumption data.
Based in Crawley, we install battery storage systems across the wider region including Horsham, Haywards Heath, East Grinstead, Reigate, Redhill, Burgess Hill, Lewes, Brighton, Worthing, Chichester and throughout West Sussex, East Sussex and Surrey. If you're within the South East, get in touch and we'll confirm coverage for your area.
Still got questions about battery storage?
Contact usFoxESS Elite Installer & Tesla Powerwall Certified
Which Battery Should You Buy?
We stock and install the full FoxESS battery range alongside the Tesla Powerwall 3 across Crawley, Sussex and Surrey — from compact residential units to large-scale commercial storage.
FoxESS EP12H Battery
A high-performance, scalable battery storage system with maximum flexibility — expandable up to 46.08kWh by installing additional units in parallel.
- 11.52kWh capacity
- Scalable to 46.08kWh
- 90% Depth of Discharge
- IP65 protection level
- 10-year warranty
Tesla Powerwall 3
Tesla's latest home battery with a built-in solar inverter — accepts up to 20kW of solar input and delivers whole-home backup power.
- 13.5kWh usable capacity
- Scalable to 54kWh
- 100% Depth of Discharge
- Up to 11.04kW continuous output
- 10-year warranty
FoxESS CQ7 Battery
FoxESS's modular high-voltage battery — stack multiple 7.02kWh units for large-scale, expandable storage with silent, fanless operation.
- 7.02kWh per module
- Scalable to 98.28kWh
- 90% Depth of Discharge
- IP65, indoor or outdoor
- 12-year warranty
FoxESS EP6H Battery
A high-performance, scalable battery storage system with maximum flexibility — expandable up to 23.04kWh by installing additional units in parallel.
- 5.76kWh capacity
- Scalable to 23.04kWh
- 90% Depth of Discharge
- IP65 protection level
- 10-year warranty
FoxESS EQS Battery
A high-performance, scalable battery storage system with a modular design — expandable up to 41.94kWh, with easy plug-and-play installation.
- 4.66kWh capacity
- Scalable to 41.94kWh
- 90% Depth of Discharge
- Easy plug & play installation
- 12-year warranty
FoxESS G-MAX Battery
A commercial and industrial all-in-one energy storage system for large-scale on-site storage — suited to warehouses, industrial facilities and large commercial properties.
- 215kWh system capacity
- 100kW rated output power
- LFP battery chemistry
- IP55, outdoor rated
- 12-year warranty
Side-By-Side
Compare All 6 Battery Systems At A Glance
| Spec | FoxESS EP12H | Tesla Powerwall 3 | FoxESS CQ7 | FoxESS EP6H | FoxESS EQS | FoxESS G-MAX |
|---|---|---|---|---|---|---|
| Usable capacity | 11.52 kWh | 13.5 kWh | 7.02 kWh / module | 5.76 kWh | 4.66 kWh | 215 kWh |
| Scalable up to | 46.08 kWh | 54 kWh | 98.28 kWh | 23.04 kWh | 41.94 kWh | — |
| Depth of discharge | 90% | 100% | 90% | 90% | 90% | — |
| Built-in inverter | No | Yes, up to 11.04kW | No | No | No | No |
| Protection rating | IP65 | Indoor | IP65, indoor or outdoor | IP65 | Plug & play install | IP55, outdoor rated |
| Warranty | 10 years | 10 years | 12 years | 10 years | 12 years | 12 years |
| Best for | Flexible residential expansion | All-in-one with built-in inverter | Large-scale modular expansion | Compact residential systems | Easy plug-and-play install | Commercial & industrial sites |
Every system above is MCS-certified and installed by our in-house team — get a free survey to find out which one fits your usage.
Not Sure Which Battery Is Right For You?
A full site survey. A breakdown of your energy usage and tariff. Let us size and recommend the right battery system for your home or business.
Book Your FREE Site Survey!Pair Your Battery With Solar Panels
A battery works even better alongside solar — charge it for free with your own generation and cut your reliance on the grid even further.
