explainer
What are ERE's?
ERE's (Emission Reduction Units) reward every kWh you charge at home: proven CO₂ savings • and you simply get paid for it.
A built-in MID meter on your charger is required for participation. Compare brands in the MID charger check, or run the charger check for your setup.
Joulo handles the entire registration as your ERE service provider. Curious how one charging session becomes a tradable credit? Read how an ERE credit is created. Want to start right away? See how ERE registration works at Joulo.
Written by Johan Trip • Co-founder
the short answer
An ERE (emission reduction unit, also known as an ERE credit) is a tradable proof of 1 kilogram of avoided CO₂ chain emissions. If you charge at home on a charger with a built-in MID meter, every kWh you charge earns EREs • Joulo registers them with the NEa and sells them for you. In our most recent ERE sale (July 2026) that came to €0.129 net per kWh charged at the standard service fee • paid out quarterly.
Every sale is listed with price, volume and broker in our public sales ledger. View the sales ledger
the principle
The polluter pays
Oil companies must buy ERE's to offset their pollution. That money goes to people who do charge clean • like you. No subsidies, no hassle.
the process
How it works
Step 1
Charge
You charge your car at home. Your charger tracks how much you charge via the built-in MID meter.
Step 2
Register
Joulo automatically registers your kWh with the NEa. You don't have to do a thing.
Step 3
Earn
Joulo sells your EREs and you receive the earnings • paid out quarterly.
the calculation
How your earnings are calculated
Official NEa formula (RED III)
Grid power
renewable: 50.5%
2,000 kWh → 665 ERE's
€260 net / year
Market price €0.49 per ERE • €0.16 gross and €0.13 net per kWh after 20% service fee. Actual market price is determined daily via OTC trading.
electric driving
Electric driving just got more attractive
ERE credits lower your effective charging costs. As if your electricity gets cheaper • just by charging at home.
Example calculation
Average EV driver · 4,000 kWh/year home charging
ERE earnings per year
€521
Discount per kWh
€0.13
effective reduction of your charging costs
requirements
Why a MID meter?
To claim EREs, your charger needs a built-in MID-certified energy meter. Why? Because the NEa only accepts measurement data from a calibrated meter directly attached to the charger. This makes every kWh provable and tamper-proof. Want to know if your charger qualifies? Check it via our compatibility tool.
Check your chargerquestions
Frequently asked questions
Ready to earn?
Calculate your earnings or sign up directly. Retroactive from January 1, 2026.