Two Premium Chargers, Completely Different Priorities
The myenergi Zappi GLO and the Simpson & Partners Home 7 sit within £50 of each other at £599 and £649 respectively, but they're aimed at fundamentally different buyers. One is an energy management tool disguised as a charger. The other is a beautifully built piece of British hardware designed to outlast everything else on your wall.
In a nutshell:
- myenergi Zappi GLO: The only charger worth buying if you have solar panels
- Simpson & Partners Home 7: Premium build, 10-year enclosure warranty, and understated design for buyers who value longevity
Does the Zappi GLO's Solar Diversion Justify the Price?
If you have solar panels, yes — emphatically. The Zappi GLO's Eco+ mode charges your Tesla entirely from surplus solar generation, meaning zero grid cost. Its standard Eco mode blends solar and grid power when the sun isn't cooperating. No other charger on the UK market matches this level of solar integration, and when you factor in the wider myenergi ecosystem — the eddi hot water diverter and libbi battery — you can build a complete home energy system that squeezes every watt from your roof.
If you don't have solar panels, the Zappi GLO's headline feature is irrelevant, and £599 is steep for what becomes a fairly standard smart charger with an app that still trails the competition in polish. In that scenario, the Home 7's extra £50 buys you something tangible: a decade of warranty coverage and genuinely premium construction.
Is the Simpson & Partners Home 7's 10-Year Warranty the Real Deal?
It's the longest enclosure warranty on the market, and it's backed by real material quality — anodised aluminium construction, UK manufacturing, and finish options including Accoya wood that make it look more like architecture than electrical equipment. For context, the Zappi GLO offers 3 years. Even the Andersen A3, the usual go-to for design-conscious buyers, only manages 7 years and costs £995.
The caveat: that 10-year figure covers the enclosure, not necessarily every internal component. Still, aluminium doesn't crack or discolour like plastic housings, and Simpson & Partners clearly have confidence in their product. If you're the type who installs something once and expects it to look good for a decade, this matters.
The trade-off is brand recognition. Simpson & Partners has a smaller installer network and far fewer online reviews than myenergi. You're betting on a less established company, though the product itself inspires confidence.
App and Smart Tariff Support Compared
Neither charger has a best-in-class app. The myenergi app has improved significantly but remains clunkier than what you'll find from Ohme or Tesla. The S&P app is functional — scheduled charging, energy monitoring — but similarly unrefined.
On smart tariffs, the Zappi GLO's compatibility with Intelligent Octopus Go is a genuine advantage. That tariff offers roughly 7p/kWh off-peak rates and integrates with your Tesla's charging schedule. The Home 7 supports Octopus Go, OVO Anytime, and EDF GoElectric, which covers the main options, but Intelligent Octopus Go's deeper integration with the car itself is a step above. Check our EV tariff comparison for current rates.
Practical Differences That Might Sway You
Cable length is easy to overlook until installation day. The Zappi GLO gives you 6.5 metres of tethered cable; the Home 7 gives you 5. That 1.5-metre difference can be the gap between reaching your charge port comfortably and having to reverse into a precise spot every evening.
Weatherproofing also differs. The Zappi GLO carries an IP65 rating — fully dust-tight and protected against water jets. The Home 7 is rated IP54, which handles rain and splashes but isn't as robust against sustained water exposure. If your charger sits on an exposed wall facing the prevailing weather, IP65 provides more peace of mind.
Both chargers are available in tethered and untethered versions, and both support three-phase power at 22kW if your property has it.
Which Should You Buy?
Buy the myenergi Zappi GLO if:
- You have solar panels or plan to install them soon
- You want to build out a whole-home energy system with eddi and libbi
- You need IP65 weatherproofing for an exposed installation
- A longer 6.5m cable matters for your parking setup
Buy the Simpson & Partners Home 7 if:
- You don't have solar panels and want premium hardware for the money
- A 10-year enclosure warranty appeals more than a 3-year one
- Aesthetics matter — you want something that looks intentional on your wall
- You'd rather invest in build quality than features you won't use
For most Tesla owners without solar, the Simpson & Partners Home 7 is the smarter buy. You're paying £50 more for dramatically better build quality and a warranty that outlasts the Zappi GLO's by seven years. But the moment solar panels enter the equation, the maths flips completely — the Zappi GLO pays for itself in free sunshine, and nothing else on the market can say the same.