MyEnergi Zappi GLO Installed in Amersham

We installed a MyEnergi Zappi GLO EV charger at an Amersham, HP6 5EG property recently. The homeowner now charges their electric car for free using excess solar energy generated during the day. One of our NAPIT-certified electricians worked through a complex installation involving careful cable routing, DNO liaison, and smart solar integration to make this happen. The result is a fully integrated energy ecosystem where solar generation, battery storage, and EV charging work together seamlessly.

Why did this Amersham homeowner choose the MyEnergi Zappi GLO?

This job started with a free in-person site survey. The homeowner already had solar panels and battery storage installed, and they were generating excess solar most days during the warmer months. They wanted an EV charger that could use that free energy to charge their car.

We brought three or four different demo models to the property so they could see the real differences between tethered and untethered chargers. During our discussion, it became clear that what they really needed was a charger built with solar integration at its core.

We recommended the MyEnergi Zappi GLO because it's purpose-built for solar integration and, in our opinion, the number one charger on the market for this job. The Zappi GLO can automatically detect excess solar generation and divert that power to charge the car at no cost. For a homeowner already investing in solar panel installation and battery storage, this was the obvious choice.

What challenges did the installation face?

This wasn't a straightforward installation. The first challenge was space. There wasn't enough room in and around where the incoming electricity supply arrived at the property. The homeowner also didn't have a double pole isolator fitted, which is essential for safe EV charger installation.

We contacted UK Power Networks, the Distribution Network Operator for the Chilterns area. They arranged for a double pole isolator to be fitted. Once that was done, we worked with the existing space in the cupboard, moving a few things around to fit our dedicated EV consumer unit.

The second challenge was the cable route. The property already had solar panel cables running in trunking around the room and through the wall. We had to route our EV charger cable without disturbing any of the existing solar cables. The cable then had to run down the white rendered external wall, and we didn't want large, intrusive cabling visible on the outside of the property.

We chose 6mm EV Ultra cable to keep the installation as neat and unobtrusive as possible. For the current transformer clamp (CT clamp) that monitors solar generation, we used a wireless Harvey CT clamp instead of a wired connection. Since the MyEnergi charger was only 10 metres away, the wireless option worked perfectly and meant we could use slightly thinner cable that was far less visually intrusive on the rendered wall.

How does the solar integration actually work?

Once we'd installed the charger and commissioned it, we showed the homeowner how the system integrates with their solar panels and battery storage. The Zappi GLO monitors the excess solar energy being generated in real time. When there's surplus power available, the charger automatically starts charging the car at no cost.

We contacted the customer a day or two after installation to check everything was working. They told us they'd already received their very first free charge from excess solar generation the day after we installed it. The system was working exactly as designed.

This kind of integration is what makes the Zappi GLO special. It's not just an EV charger—it's part of a complete home energy ecosystem. The charger communicates with the solar system and battery storage to make the most of every kilowatt generated on site.

What does the installation process involve?

For this property, the installation took longer than a standard EV charger job because of the space constraints, the DNO upgrade needed, and the careful cable routing required. A standard domestic EV charger installation typically takes 2-4 hours, but non-standard jobs like this one—involving consumer unit work, DNO liaison, and complex cable runs—can take up to a full day.

Here's what we did:

1. Liaised with UK Power Networks to arrange the double pole isolator upgrade
2. Worked in the existing cupboard to fit the dedicated EV consumer unit
3. Carefully routed the 6mm EV Ultra cable along the existing solar trunking without disturbing it
4. Installed the wireless Harvey CT clamp to monitor solar generation
5. Ran the cable down the external rendered wall using discreet conduit
6. Commissioned the system and tested the solar integration
7. Showed the homeowner how to monitor and control charging via the Zappi app

Many Chilterns properties—especially Victorian and Edwardian homes in Amersham—require careful planning of cable routes from the fuse board to the driveway or garage. That's why we always start with a free site survey. We assess the property, identify any challenges, and work out the best solution before any work is agreed.

Is the MyEnergi Zappi GLO right for homes with solar panels?

If you already have solar panel installation and battery storage at your Amersham property, the Zappi GLO is absolutely worth considering. It's designed to maximise the value of your solar investment by using excess generation to charge your car at no cost.

Without a charger like this, excess solar energy either gets stored in your battery (which may already be full) or exported back to the grid at a lower rate than you'd pay to charge an EV. The Zappi GLO changes that equation.

The wireless CT clamp setup we used here also means the installation can be neat and unobtrusive, even on rendered walls or properties where cable routing is tricky. This is particularly important in the Chilterns, where many properties are visible from the road and we're always mindful of the local environment.

The homeowner at this Amersham property is now very happy. Their EV charging is integrated fully with their solar and battery system, and they're already benefiting from free charging. Everything's working well in their complete home energy ecosystem.

What's the next step?

If you have solar panels or battery storage at your Amersham, Gerrards Cross, Beaconsfield, or anywhere else in the Chilterns, and you're thinking about adding an EV charger, we'd recommend starting with a free in-person site survey. We'll assess your property, discuss your needs, and show you the options available.

There's no obligation, and no forms to fill in. We'll give you honest advice about what will work best for your home and your energy setup.

Call or WhatsApp us on 01494 977298 to arrange your free survey.