Joulo is now available as an ERE integration in Plugchoice. Charger owners can choose Joulo from the Plugchoice app or web portal, authorize the connection once, and let their eligible charging sessions flow through Plugchoice as the data layer behind the ERE process.
The point is not just that another provider has been added to a list. Joulo chooses Plugchoice as its data and exposure platform. That matters because ERE only becomes useful at scale when the operational part stays simple: clean charging data, clear authorization, and a booking service provider that can handle the ERE side without forcing every customer into a new technical setup.
ERE is valuable, but the chain is easy to overcomplicate
ERE is the Dutch system for green energy certificates in transport. In practical terms, ERE stands for emissiereductie-eenheid, or Emission Reduction Unit, where one unit equals one kilogram of CO2-equivalent emissions saved. Eligible EV charging sessions are registered as these units. They can then be traded in a regulated market, with revenue flowing back through the chain. We broke down the mechanics in ERE certificates explained, and the official rules live with the Nederlandse Emissieautoriteit.
That sounds neat on paper. In practice, it needs more than a charging station and a good idea. The chain needs MID meter data, session details, authorization from the charger owner, verification, registration with the Dutch Emissions Authority, and a party that understands the rules. The NEa even publishes separate guidance on registering electricity for private users, which shows how much process sits behind a single kWh.
That is where Plugchoice sits. The customer chooses the booking provider, Plugchoice normalizes the charging data across every charger brand, and the inboekdienstverlener receives the clean data stream it needs. CPOs and installers can offer ERE without becoming ERE specialists themselves.
What Joulo adds
Joulo is a Dutch ERE booking provider. The Dutch Emissions Authority publishes an overview of inboekdienstverleners, including Joulo B.V. The NEa also states that being listed does not mean a party has a REV account, has been quality-assessed, or has been approved or accredited by the NEa. The responsibility for correct registration remains with the inboekdienstverlener itself.
That nuance belongs in the story. ERE is not a magic switch that turns every kilowatt-hour into guaranteed revenue. It is an administrative and technical process. For charger owners, the question is not only which party can book EREs. It is also how much work they need to do, who gets access to which data, and whether their charger setup has to change.
With the Joulo integration, the answer is deliberately boring. The charger stays in Plugchoice. The customer authorizes the connection. Joulo receives the relevant session data for ERE over the REST API. No manual exports, no separate OCPP migration, no rebuild of the charging setup.
Why this is a Plugchoice integration
On Joulo's own Plugchoice page, the connection is described as a one-time OAuth link. Joulo says the charging stations remain managed through Plugchoice, that no OCPP settings need to change, and that Joulo only reads the session data it needs for the ERE process. The same non-disruptive principle powers the OCPP Proxy, which lets Plugchoice run alongside an existing backoffice instead of replacing it.
That is exactly the kind of integration Plugchoice is built for. Different chargers, different CPOs, different commercial arrangements, but one platform where the customer can make a choice and the data stays usable. It is the same open, hardware-agnostic thinking behind recent connections like Easee, Peblar and the evcc app.
For ERE booking providers, that creates a simpler route to market. Instead of building a separate connection with every CPO, installer or charger brand, a provider can become visible inside Plugchoice and receive standardized data through one route. Providers that want to explore it can start from the Plugchoice ERE proposition or contact us directly.
For CPOs and installers, it creates a cleaner proposition. They can offer ERE to their customers, keep the technical layer in Plugchoice, let the selected booking provider handle the ERE process, and participate in the value that is created. Through the Plugchoice Partner Program, partners can also earn a revenue share on paid modules such as Smart Charging, Billing & Invoicing and ERE.
Compare before you connect
Commercial conditions around ERE providers can differ, and they can change. That is why detailed commercial information for Joulo sits on the dedicated integration page, while the broader comparison lives in the ERE integration overview. A news article is not the right place to freeze pricing or terms in time.
Joulo is available in Plugchoice as of 22 April 2026. Charger owners can connect from the Plugchoice app or web portal. CPOs, installers and ERE booking providers that want to understand the full model can start with the Plugchoice ERE proposition, browse the wider integrations overview, or get started for free.
Sources and links
- Plugchoice ERE proposition
- Plugchoice Joulo integration page
- Plugchoice ERE integrations overview
- Joulo page about Plugchoice
- Joulo website
- NEa list of inboekdienstverleners
- NEa: Hernieuwbare Energie voor Vervoer
- NEa: registering electricity for private users
- Nederlandse Emissieautoriteit (NEa)
- ERE certificates explained, a companion background article