Billing residents through the charger instead of a submeter
You do not need a submeter, because a networked charger is already a meter. It identifies who plugged in, measures the kilowatt-hours it delivered, applies the price you set and takes the payment. What people get wrong is the next step: the network collects that money, not you. The network deducts its fees and remits the balance to the property on its own schedule. Two clauses in the network agreement decide whether the property ever sees a useful amount — the payout schedule and the revenue share — and both are negotiable before you sign and immovable after.
Updated 2026-08-20
What the charger actually records
A networked charging session produces a record with an authenticated identity attached to it, and that combination is what makes the charge collectible.
| Field in the session record | What it proves |
|---|---|
| Authenticated account or RFID token | Which person started the session |
| Port or connector ID | Which physical stall, if you have several |
| Start and stop timestamps | When, and how long the stall was occupied |
| Energy delivered, in kWh | The quantity actually sold |
| Price applied and rate plan | That the posted price was the price charged |
| Idle or occupancy fee, if enabled | Why the total exceeds the energy cost |
The metering question nobody asks the vendor
If you sell electricity by the kilowatt-hour, the device doing the measuring may fall under weights-and-measures law, exactly like a fuel pump.
Where the money physically goes
The driver pays the network. The network pays the property. Those are two separate events with a gap between them, and the gap is where most of the disappointment lives.
| Step | Who holds the money | What comes out |
|---|---|---|
| Driver taps or starts a session in the app | Payment processor | Card processing fee |
| Session completes, energy metered | Charge network | Network transaction or per-kWh fee |
| Network reconciles the billing period | Charge network | Revenue share, if your contract has one |
| Payout issued to the site host | The property | Nothing further |
| Utility bills the meter serving the chargers | The property | The actual cost of the energy, on your tariff |
The two clauses that decide whether this works
Payout schedule and revenue share. Everything else in a network agreement is secondary to those two.
Network billing against a submeter, honestly
Neither is universally right. The choice turns on whether stalls are assigned to specific residents or shared.
| Question | Networked charger | Submeter to a billing agent |
|---|---|---|
| Works with shared, unassigned stalls | Yes | No |
| Knows who used the energy | Yes, by authentication | Only if the stall is assigned |
| Can price guests differently from residents | Yes | No |
| Money reaches the property directly | No — via network payout | Yes, on the rent statement |
| Ongoing cost | Per-port subscription plus fees | Meter read or billing-agent fee |
| Survives the resident leaving | Yes, account closes with them | Needs a move-out read |
| Useful for a utility incentive application | Yes, utilisation data is built in | Rarely |
When a submeter is still the better answer
Assigned stalls in a garage, where each resident charges in their own space, is the case where network billing buys you very little.
What to settle before the order goes in
The billing decision changes the hardware, so it has to be made before the purchase order, not after the trench.
Do we still need a separate electric meter if the chargers do the billing?
The charger handles who owes what. It does not change which utility meter the energy passes through, or which rate schedule that meter sits on. Those decide your actual cost per kWh and whether a demand charge applies, and you cannot price a session sensibly without knowing them. The house-meter-versus-separate-meter question is a different decision and it has to be made before the conduit is set.
Can we charge guests a different rate than residents?
On a networked system, yes. That is one of the strongest arguments for it. Residents authenticate against a resident group with one price, everyone else pays the public price, and the network enforces the difference without anyone at the property doing anything. A submeter cannot do this, because a submeter does not know who is standing there.
What happens if the network goes out of business or we want to switch?
Ask two things before you buy: whether the hardware is capable of open protocol communication so it can be moved to another back office, and who owns the session data. Hardware that only talks to one company's cloud is a decision you make once. Get both answers in writing, and get an export of your own session history included as a contract right rather than a favour.
Does the network handle sales tax or utility taxes on the sessions?
Sometimes, partially, and it varies by state and by network. Some jurisdictions tax EV charging sessions specifically, and some apply ordinary sales tax. Ask the network what it collects and remits on your behalf and what it leaves to you, then confirm the answer with your accountant rather than with the salesperson. This is one of the more common gaps between what a proposal implies and what the contract says.
Is any of this covered by a federal tax credit?
No. The Section 30C credit terminated for property placed in service after June 30, 2026 and has no federal successor. Utility make-ready programs are where the recoverable money now sits for commercial and multifamily work, and those are sponsored by individual utilities rather than nationally.
- NIST Handbook 44 §3.40 — Electric Vehicle Fueling Systems
- CPUC Decision 11-07-029 — whether a seller of EV charging services is a public utility (California)
- US DOE Alternative Fuels Data Center — state laws and incentives index
- Recharged — How much does a commercial EV charging station cost (per-port installed cost baseline)
- IRS — Alternative Fuel Vehicle Refueling Property Credit (§30C status)
Get the installed number before the network conversation
Networks quote you a subscription. The install is the part that decides the budget. Tell us the port count, the distance from the service and whether the lot has to be cut, and you get a range for the physical work in the same session.