Charmetrica is a carbon credit calculator for biomass pyrolysis.
The app estimates how much carbon dioxide you remove from the atmosphere by turning biomass into biochar, and the revenue range this could fall into.
⚠️ Not a government app
Charmetrica is an independent app published by Sustainable Systems GmbH. It does not represent the European Commission or any other government entity, and it has no connection to certification bodies, verification bodies or registries.
📖 Official sources
The calculation follows the methodology of Commission Delegated Regulation (EU) 2026/285, supplementing Regulation (EU) 2024/3012 on carbon removal certification. The official texts are published on EUR-Lex:
2026/285: https://eur-lex.europa.eu/eli/reg_del/2026/285/oj
2024/3012: https://eur-lex.europa.eu/eli/reg/2024/3012/oj
🧮 A full calculation in eight short steps
Feedstock, feedstock delivery, plant, energy use, methane and inputs, biochar, biochar haulage, biochar use. Fill the sections in any order; the app marks the ones still missing data.
📊 A result, not a single number
Annual biochar output in tonnes and cubic metres, useful heat in megawatt hours, gross CO₂ capture, deductions for production, transport and use, net removal per year, and the revenue range from certificates.
🔍 You can see where every number comes from
A balance chart, a detailed calculation with the actual numbers substituted into every formula, and the origin of each coefficient: physics, EU regulation, market estimate.
📚 Built-in reference data
Feedstock types with their density, moisture and carbon content, feedstock forms from round wood to pellets, vehicle types, plant types. Every typical value can be replaced with your own, and the app marks the fields you changed.
📴 Works offline
All calculations run on your device. The internet is only used to check for updates. Nothing is sent anywhere and no account is needed.
💾 Your inputs are kept
Entered data survives restarts and can be cleared in one step.
🌗 12 languages, light and dark theme
English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Swedish, Finnish, Russian.
👥 Who it is for
• operators and owners of pyrolysis plants
• farms and forestry businesses wondering what to do with plant residues
• investors and anyone building the business case for themselves
• carbon project developers and consultants
• engineers, teachers and students
⚠️ Important notice
Preliminary estimate. The calculation is for information only and is not a certification, an audit, an expert opinion or a confirmation of eligibility for carbon removal certificates. Only the text of the Regulation and the decisions of the competent bodies have legal force; actual issuance of certificates requires an independent audit and registration in the Union registry.
Typical values. The feedstock and biochar properties, coefficients and prices preset in the app are illustrative and serve only as a starting point. Real values depend on the feedstock, the equipment, the process regime, storage conditions and the market, and may differ substantially. Determining the input data and verifying the result are the user's responsibility.
Disclaimer. The app and the calculation results are provided "as is", without warranty of accuracy, completeness or timeliness. The app is not an offer, not advertising of investment opportunities, and does not replace legal, tax, financial, investment or engineering advice. Liability for decisions taken on the basis of the calculation is excluded to the maximum extent permitted by law.
Carbon credits from biochar: calculator based on EU Regulation 2026/285