The Zappi is the charger most likely to be paired with solar panels, and that turns out to matter for reimbursement. If you drive a company car and charge at home, your employer can cover the electricity free of tax and National Insurance — but only the electricity that actually went into the company car. One thing to know up front: ChargeReport reads the kWh your Zappi delivered from your myenergi account as daily totals, and it does not split them into solar and grid — the statement shows what went into the car, day by day.
Supported myenergi Zappi models
ChargeReport supports the following models of the myenergi Zappi range natively, with no extra hardware:
- Zappi v2.1
If your model is not listed but has an OCPP interface that lets you enter your own backend, it can still connect to us — our gateway speaks OCPP 1.6J and 2.0.1 and accepts connections encrypted via wss://. If you are unsure, see our setup guide for wallbox brands or get in touch before you sign up.
Connect your myenergi Zappi wallbox in 3 minutes
myenergi exposes a REST API through the myenergi cloud. Three steps: (1) generate an API key in the myenergi app or at myaccount.myenergi.com and note your hub serial number. (2) Paste both into the ChargeReport wizard. (3) When you connect, we fetch up to twelve months of daily totals — the last 30 days right away, the older ones in the minutes after. From then on we fetch every three hours, each time looking back one week. The statement lists one entry per charging day. The Zappi has to be connected to the myenergi cloud for this — without that connection there is nothing to read.
What your employer can reimburse — and what they need from you
If you drive a company car in the UK, your employer can reimburse what it costs to charge it at home free of income tax and National Insurance — electricity is not treated as fuel for the car fuel benefit charge, so the exemption in s.239(2) ITEPA 2003 applies. HMRC attaches one condition to it: the employer has to be satisfied that the reimbursement is solely for the company car and not for the household. No particular meter or method is prescribed. ChargeReport reads every session from your myenergi Zappi charger and turns it into a monthly statement — each session with date, time and kWh, plus monthly totals — which evidences exactly the separation HMRC asks for, in a form payroll can file.
Because the Zappi is so often paired with solar, one honest note: the statement shows the total kWh charged per day as a single figure — ChargeReport does not split it into solar and grid. Which share your employer covers is a matter for your own arrangement.
More on the legal side: Company car home charging in the UK: what your employer can reimburse tax-free
Charging in Ireland? The requirement is close to HMRC's, but Revenue also writes the record-keeping duty into its own guidance — and the charge point exemption there covers fully electric cars only. Company car home charging in Ireland
myenergi Zappi charging and your employer — who pays for the electricity?
Charging a company car at home is paid for by you first: it runs through your domestic electricity contract. Your employer can reimburse that amount without tax or National Insurance, but only for the electricity that went into the company car. That is the whole difficulty — a household meter cannot tell the car from the dishwasher, and an annual bill from your supplier cannot either. This is a different route from the 7p per mile advisory rate, which only ever covers business mileage and needs a mileage log rather than kWh. ChargeReport produces the evidence for the first route from the readings your myenergi Zappi charger already takes.
Common questions about myenergi Zappi & ChargeReport
Does ChargeReport separate solar charging from grid charging?+
No. myenergi reports the energy in separate values per charging mode, but ChargeReport adds them up and records the total kWh per charging day. Your statement shows what went into the car, not where it came from.
Can my employer reimburse the solar-charged kWh too?+
That depends on the arrangement between you and your employer, and it is worth asking before you assume either way — the electricity from your own roof did not come off a bill. Note that the statement shows the total kWh per day and does not separate solar from grid, so it will not answer that split on its own.
Which Zappi versions are supported?+
Any Zappi that is connected to the myenergi cloud and for which you can create an API key. Without that cloud connection there is nothing for us to read.
What exactly does my employer need from me?+
HMRC's guidance (EIM23900) puts the condition on the employer: they need to be satisfied the reimbursement is solely for the company car. There is no prescribed form and no prescribed meter — a monthly statement listing each session with date, time and kWh is what makes that demonstrable.
Do I need a separate meter fitted?+
No. The UK sets no measuring requirement — that is a German rule, not a British one. Your Zappi already records what it delivered; the gap is getting those numbers into a form payroll can file.
Further reading
If you run a myenergi Zappi wallbox, these guides are worth a look:
- Company car home charging in the UK: what your employer can reimburse tax-free
- EV charging reimbursement: how it works
Next step
The first report is free. All you need is your number plate and access to your myenergi Zappi wallbox. Questions about the legal side? Our FAQ section covers the common ones, and the pricing page shows exactly what a report costs.