Exergie and C-nery rethink CO₂ opportunities in the biogas sector.
They conduct in-depth energy audits and help companies tackle complex challenges related to heating systems, battery storage, and smart energy use. Exergie operates as part of the United Experts Group, a multidisciplinary network of advisory firms covering agriculture, environment, energy, architecture and more.
In a recent project they collaborated with C-nery to figure out an easier way to find and compare methodologies for projects capturing and utilizing carbon in the biogas sector.
Situation - Biogas Opportunities
Many biogas plants are implementing a biomethane step where the biogas is separated into biomethane and biogene CO₂. The resulting biomethane is a renewable gas that can be injected into the natural gas grid as a clean fuel, offering a low-emissions alternative to fossil energy. Meanwhile, the project also explores innovative ways to utilise the captured CO₂, making it a clear example of a Carbon Capture and Utilisation (CCU) initiative.
At Exergie, they realized that CO₂ shouldn’t be seen as waste, but as a valuable resource. As a main consulting company in the biogas sector, the question became: how can we turn captured CO₂ into a meaningful asset?
Challenge - Can we put the filtered CO₂ to good use?
The CO₂ that is captured during biomethane production is clean, biogenic, and full of potential. There are promising application pathways in sectors such as food, chemicals, and construction materials but unlocking that value remains a significant challenge.
To explore this potential, Exergie is seeking supportfrom C-nery in two key areas.
- They want to identify which carbon certification system best fits their project setup.
- Then, they want to estimate how many carbon credits and revenue a biomethane installation could generate annually, taking into account factors like technology used and emissions.
By measuring these elements, Exergie wants to get more insight in the business case and identify critical factors, turning biogas not just into energy, but into long-term climate value.
C-nery’s solution - From thinking to doing
What started as a thinking experiment (exploring options, imagining scenarios) became actionable thanks to C-nery.
Exergie had one clear question:
Are there methodologies for Carbon Capture and Utilisation projects?
The short answer: Yes. And C-nery helped them find them.
C-nery helped Energie compare an extensive list of methodologies on a number of parameters:
- certification type
- CCU relevance
- Storage duration required
- MRV (Monitoring, Reporting & Verification) requirements
- Status
- Sales & marketability
- Income per ton tCO₂e
- Cost structure
Thanks to C-nery, Exergie can now weigh all of those factors with a technical solution. The complexity of these projects is real, but C-nery’s tools help cut through it.
Result - Making Complexity Workable
When carbon projects become complex, the right tool doesn't just help, it’s essential.
C-nery’s platform helped Exergie to:
- Spot key challenges early
- Adapt plans when costs or policies changed
- Move from idea to action with confidence
As Willem from Exergie put it:
“Met C-nery heb je heel snel een antwoord op heel veel vragen.”
(“With C-nery, you get answers to a lot of questions — fast.”)
And in a space where delays can stall entire projects, getting the right answers early makes all the difference.
Because when you make complexity workable, you make climate action possible.