A Fox ESS solar and battery system
As a Fox ESS installer, UPS Solar holds every job to the same standard. This recent installation pairs a Fox ESS H1 hybrid inverter with a Fox ESS EP series battery. The result is a compact, tidy system that stores the homeowner’s daytime solar for use in the evening, rather than sending it back to the grid for very little in return.
Here is what went in, why we chose it, and what a well finished installation looks like.

The inverter: Fox ESS H1 hybrid
The inverter is the brain of any solar system. It converts the DC power from the panels into the AC power your home uses. A hybrid inverter goes a step further, managing the solar panels, the battery and the grid connection from a single unit.
The Fox ESS H1 decides, moment by moment, whether solar power should run the home, charge the battery or be exported. It can also charge the battery from the grid on a cheaper overnight tariff. Everything is visible through the Fox ESS app, so the homeowner can see what the system is generating, storing and saving from their phone.
The battery: Fox ESS EP series
Solar panels produce most of their power in the middle of the day, when many households use the least. Without a battery, that surplus is exported for a small payment and bought back later at a much higher price.
The Fox ESS EP series battery closes that gap. It stores spare solar during the day and releases it in the evening, when demand and prices are highest. It is a single, slimline unit that sits neatly on the floor beneath the inverter, and it can be expanded with additional batteries later if the household’s needs grow.
What a quality installation looks like
Good equipment only performs as well as the installation behind it. On this job, the team focused on the details that matter for safety, servicing and appearance:
- A compact layout: inverter and battery mounted in line, taking up minimal wall and floor space.
- Neat cable management: cabling run in trunking for a clean finish and protection from damage.
- Dedicated switchgear: a separate PV distribution board and changeover switch fitted alongside the inverter.
- Clear isolation and labelling: a clearly marked isolator and full safety signage, so anyone working on the property knows exactly what is installed and how to make it safe.
It is the kind of finish you should expect from any Fox ESS installer, and it is the standard UPS Solar works to on every job. Tidy, safe and easy to maintain for years to come.

Adding a battery to your existing solar panels
If you already have solar panels, you do not need to start again to add battery storage. Most homes with an existing system can add a battery in one of two ways.
The first is to replace the existing solar inverter with a hybrid inverter, such as the Fox ESS H1, which then manages both the panels and the battery. This often makes sense when the original inverter is getting older.
The second is to keep the existing inverter and fit an AC-coupled inverter, such as the Fox ESS AC1, alongside it to run the battery. This is usually the simpler route when the current system is working well.
A good Fox ESS installer will look at the age of your system, how much electricity you use and when, and which tariff you are on before recommending either option.
Why choose UPS Solar as your Fox ESS installer
Choosing a Fox ESS installer is about more than the equipment. The same inverter and battery can be installed neatly and safely, or rushed and left untidy. The difference shows on the day, and for years afterwards every time the system needs checking or servicing.
At UPS Solar, every installation is planned around the property, finished to a consistent standard and clearly labelled, so the homeowner and any future engineer know exactly what is installed and how to isolate it.
Thinking about solar or battery storage?
Whether you are starting from scratch or want to add a battery to the solar panels you already have, UPS Solar can design and install a system that fits your home and your energy use.
If you are looking for a Fox ESS installer, get in touch for a free, no-obligation quote.
Call: 0800 098 4979 Visit: www.ups-solar.co.uk Email: info@ups-solar.co.uk
