Charge more cars on the same connection, and earn on every kWh
Stekker steers the charge points at your location within your contracted grid capacity, on solar, on the price and on signals from the grid operator. Those same kilowatt-hours we register with the Dutch Emissions Authority, so they earn you an ERE reward as well.
Signing up uses the same form as home chargers. You pick “Business” and fill in your company name and Chamber of Commerce number.
kWh registered
112
CPOs connected
99
charger brands supported
1,000,000
ERE’s sold
380
models supported
13.6 cents
net per kWh, now
2018
active since
What Stekker does at a business location
An ERE reward on the power you already charge
Every kWh that goes into an electric car is worth a tradable certificate. Stekker registers those kilowatt-hours with the Dutch Emissions Authority on your behalf, sells the ERE’s and transfers the proceeds. Nothing has to change about your charge points or your charge cards.
More charge points on the same connection
The Stekker EMS divides the available power across every session at your location, within the limit you agreed with the grid operator. Solar production, dynamic prices, departure times and priority per charge card all go into the same plan. Expanding then does not have to start with a heavier connection.
Features
kW-max protection
Stekker controls charging in such a way that the aggregated load of all EV charging never exceeds local grid limits.
Optimize self-consumption
Stekker helps to increase the consumption of power that’s locally generated, whether it is solar or even local wind production.
Smart charging
Stekker looks out for dozens of metrics, including market signals about dynamic pricing.
From sign-up to payout
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Step 01
Fill in the authorisation
You fill in the ERE form and pick Business under “Who are you?”. That asks for your company name and Chamber of Commerce number, plus the EAN code of the connection and the account we pay out to. An owners’ association signs up as a business too.
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Step 02
Connect the charge points
We read the charging sessions through your charger, your CPO or your management system. There are 99 brands, 380 models and 112 CPOs connected, so most of the time the integration already exists.
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Step 03
Register and pay out
Stekker registers the sessions with the Dutch Emissions Authority, trades the ERE’s and pays the proceeds into your own account. The portal shows which sessions were registered and what they earned.
How we calculate
One charged kWh yields 0.33269 ERE, the NEa calculation method for delivery year 2026. Our last sale went for €0.482 per ERE. That is €0.160 gross per charged kilowatt-hour, and €0.136 net after our 15% commission. The charging period counts from 1 January 2026. A business location uses the same calculation as a home charger, it just involves more kilowatt-hours.
Stekker’s powerful smart charging
The engine works out a charging plan per location across all charge points at once, on more than twenty signals. Whatever changes locally, whether that is the sun, an arriving car or a call from the grid operator, is in the plan a quarter of an hour later.
- 📈 Charging plans within your contracted grid capacity
- 🚨 Receive and answer grid operator signals
- 💡 Take local hardware and meter signals into account
- ☀️ Make the most of your own solar production
- 📊 Follow dynamic energy prices
- 📋 Priority and departure time per charge card or session
From one car park to hundreds of charge points
Stekker sits on top of what is already there
The engine is a control layer above your chargers, your CPO software or your own platform. You do not have to replace hardware to get started.
- OCPP 1.6 en 2.0.1
- OCPI for CPO-to-eMSP
- OpenADR for demand response
- S2 for grid-aware multi-asset coordination
- Stekker Edge on Modbus for on-site control
- Cloud-to-cloud API for your own orchestration
- Day-ahead and imbalance market signals
- GOPACS-compatible congestion services
Stekker at a business location
Can a business claim ERE’s?
Yes. In the sign-up form you pick Business under “Who are you?”, and the form then asks for your company name and Chamber of Commerce number instead of only your personal details. The rest of the route is identical to a private charger: authorisation, connect the charge points, register, pay out. Signing up on behalf of an owners’ association? Pick Business there too and fill in the association’s details.
What is an ERE?
An Emission Reduction Unit is a tradable certificate the Dutch Emissions Authority issues for power that goes into an electric car instead of into a tank of fossil fuel. Fuel suppliers are legally required to buy them. One kWh is worth 0.33269 ERE under the NEa calculation method for 2026.
Does Stekker work with our existing chargers and CPO?
Usually. Stekker is a control layer above the charger or the CPO software and connects over OCPP, OCPI, a cloud-to-cloud API or Modbus. There are 99 charger brands, 380 models and 112 CPOs connected. If your combination is not there yet, ask us, because a new integration is more often possible than not.
Can we expand without upgrading the connection?
That is what the EMS is for. The engine divides the available power across all sessions and keeps the total under your contracted grid capacity. Cars that stay longer charge more slowly, cars that leave sooner get priority. How much room that frees up depends on your connection, your charge points and the departure times at your location, so we work it out on your own data.
What happens during a congestion call from the grid operator?
Stekker receives and answers grid operator signals and works them into the next plan. Charging power at your location then drops temporarily, spread across the sessions with the most room. The engine supports OpenADR and GOPACS-compatible congestion services, among others.
Can we offer this under our own name?
Yes, that is Embedded: the Stekker Engine behind your brand and your interface, through APIs and bespoke integrations. Energy suppliers, CPOs and platforms use that route to offer smart charging to their own customers.
What does it cost?
Signing up for ERE’s is free. We keep 15% commission on the proceeds of your ERE’s, so you only pay once something has actually been sold. For an EMS setup at a location the price depends on the number of charge points and the integrations it needs. Request a demo and we will work it out.
Charging hubs and fleets running on Stekker
Customers
“I am truly amazed by the product you guys’ve built, both in terms of the ux and the intelligence!”
Yanick SlikboerWePositive.Energy
“Thanks to Stekker, customers can charge reliably, affordably, and sustainably. They relieve pressure on the local grid and assure users their EV will be charged sufficiently.”
Jeroen de JongBaas B.V.
“Through Stekker, we wanted to use our solar energy more intelligently. We also have a dynamic energy contract, so it is attractive to charge at favorable times when prices are lower.”
Jesse MomKremer B.V.
Accountability
- Registered with the NEa as an ERE issuer
- Selected by the joint grid operators as a market party for Netbewust Thuisladen
- Smart charging since 2018
- 15% commission on your ERE reward, 25% with smart charging. No subscription.
- We hold your revenue in a separate account
Charge points at your location?
Sign up as a business for ERE’s, or let us look at what is possible on your connection.
Sign up as a business for ERE’s →
Request a demo Customer stories →
