myenergi Zappi Review UK: Solar Charging, Pricing & Warranty

The myenergi Zappi is the charger that made "solar diversion" a standard EV-charging feature rather than a niche add-on. Made by myenergi, a Grimsby-based company founded in 2016 by engineer Lee Sutton and entrepreneur Jordan Brompton, the Zappi has grown from a crowdfunded prototype into one of the UK's best-known home EV chargers, built at the firm's Stallingborough manufacturing site alongside its Eddi (hot water) and Libbi (battery) products. This review covers what the current Zappi v2.1 actually does, real UK pricing, the warranty, the app, and the compatibility questions worth asking before you buy — including where it falls short.

What the Zappi is (and isn't)

The current model is the Zappi v2.1, sold as a 7kW/7.4kW single-phase unit or a 22kW three-phase unit, in tethered (fixed 6.5m Type 2 cable) or untethered form, in black or white. Unlike most home chargers, which simply deliver power at a fixed or tariff-scheduled rate, the Zappi's defining feature is built-in solar and zero-export charging: it measures your home's generation and consumption via CT clamps (cabled or via myenergi's wireless "harvi" sensor) and adjusts the EV's charge current every few seconds to track whatever surplus your panels are producing. If you're comparing it directly against Ohme's ePod, see our Zappi vs Ohme ePod comparison — the short version is that Zappi does real-time physical solar diversion, while Ohme leans on smart-tariff scheduling instead.

Eco, Eco+ and Fast: how the charging modes actually work

Three modes cover most use cases, according to myenergi's own help centre:

• Eco+ charges from solar surplus only. It shows "Waiting for Surplus" until your panels are generating enough, then ramps up and down with the sun — on a cloudy day it may charge very slowly or not at all, and it will never draw from the grid.
• Eco blends solar surplus with a small grid top-up (around 1.4kW/6A minimum) so the car keeps charging even when generation dips, rather than stalling completely.
• Fast ignores solar entirely and charges at full rate — useful as a manual boost when you need the car ready quickly, whatever the weather.

For most solar-panel owners, Eco+ is the mode that actually earns its keep: it's the difference between exporting surplus generation to the grid at Smart Export Guarantee rates and using it to fill the car for free instead. See our EV charging with solar guide for the wider maths on that trade-off.

Pricing in 2026

myenergi's own site lists the Zappi unit "from £779 inc. VAT," though independent UK electrical wholesalers and EV-charger retailers (Superlec Direct, CEF, ON-EV and others) list individual SKUs anywhere from roughly £550 to £899 depending on colour, phase and tethered/untethered choice — myenergi sells only through installers and trade retailers, not direct-to-consumer fixed pricing. Fully installed, UK installer quotes commonly fall in the £1,000–£1,500 range for a standard single-phase 7.4kW install, according to independent cost-guide and comparison sites, though your final price depends on cable run length and any consumer-unit upgrade needed. Get a firm quote from an installer before budgeting off any of these figures.

Warranty

The Zappi carries a standard 3-year warranty, confirmed on myenergi's own product page, extendable to a total of 5 years by purchasing myenergi's extended warranty within three months of the standard warranty expiring. That's on par with Ohme and Hypervolt's 3-year standard cover, though shorter than Pod Point's 5-year standard warranty — worth factoring in if warranty length matters more to you than solar-diversion capability.

The myenergi app

The Zappi is controlled through the myenergi app (iOS and Android), which shows live generation, consumption and charging data across all your myenergi devices, lets you schedule charging windows, and includes a manual "Boost" button to override eco charging when you need a full charge regardless of solar or tariff logic. The iOS App Store listing shows a 4.5-out-of-5 rating from roughly 15,000 ratings — a solid score, though it doesn't fully capture a recurring complaint on owner forums: intermittent WiFi drop-outs, where the Zappi silently disconnects from the home network despite still showing "connected" on its own display. Owners on the SpeakEV forum report this occasionally causing a scheduled overnight charge to fail to start. The most commonly cited fix is switching to a wired Ethernet connection instead of relying on 2.4GHz WiFi, or changing your router's WiFi channel — not ideal for a unit that's meant to just work, but a known and workaroundable issue rather than a dealbreaker.

Does it work with solar panels that aren't from myenergi?

Yes — the Zappi's solar-diversion logic works with any manufacturer's solar inverter, since it measures generation independently via its own CT clamps rather than talking to the inverter directly. The catch is that a standard Zappi ships with CTs configured to measure grid import/export; if your installer needs a dedicated read of your solar generation specifically (common on systems where the CTs weren't positioned with a Zappi retrofit in mind), that typically means fitting an extra CT clamp or a wireless harvi sensor, which is an additional part and a bit more installer time. myenergi publishes a System Builder tool on its support site that works out exactly which extra hardware your specific setup needs — worth asking your installer to run through it before you're quoted a price, rather than assuming the base unit covers everything.

Smart charging regulation and grants

Every Zappi v2.1 sold in the UK complies with the Electric Vehicles (Smart Charge Points) Regulations 2021, which came into force on 30 June 2022 and require new home chargers to support randomised delay (up to 10 minutes, to avoid grid-load spikes from synchronised charging) and default off-peak scheduling — myenergi publishes its own technical compliance file confirming this. If you're a renter or flat owner rather than a homeowner with your own driveway, the OZEV EV Chargepoint Grant can currently cover up to £500 per socket (75% of cost) as of 1 April 2026 — check the current authorised chargepoint model list with your installer, since eligible models can change.

How it compares

Across independent UK comparison coverage, Zappi (alongside Hypervolt) is consistently rated as the strongest option specifically for physical solar diversion, while Ohme is positioned as the tariff-integration specialist — its deep hooks into Octopus Intelligent Go, Cosy and Agile, or E.ON Next Drive, suit someone without solar who just wants the cheapest possible off-peak charging. Pod Point trails on solar diversion but offers a longer 5-year standard warranty. If you already have solar panels and want to actually use your own generation rather than exporting it, Zappi's category-leading Eco+ mode is the reason it remains the default recommendation in that scenario.

Our verdict

The Zappi earns its reputation: Eco+ mode genuinely does what it promises, turning spare solar generation into free miles rather than a small SEG export payment, and the three-tier Eco/Eco+/Fast setup covers sunny days, cloudy days and "I need it charged now" equally well. The 3-year warranty (extendable to 5) and occasional WiFi flakiness are the two honest downsides against a strong field. If you have — or plan to add — solar panels and want the most capable solar-diversion charger on the UK market, the Zappi is still the one to beat; if you have no solar and just want the cheapest smart-tariff charging, Ohme's deeper tariff integrations are worth comparing first.