The Carbon Workbench

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Biochar Carbon Calculator

Full biomass → biochar → CO₂e sequestration chain

Biomass Input

kg wet

Feedstock

Moisture Content15%

Pyrolysis

Biochar Yield (of dry mass)28%

Carbon Content of Biochar70%

Carbon Accounting

Process Emissions15%

Permanence Discount10%

Results

Wet biomass in—

→Dry biomass—

→Biochar produced—

→Carbon in biochar—

→Gross CO₂e—

− Process emissions—

− Permanence discount—

Net CO₂e Sequestered

—

tCO₂e (verified, net)

—

Key Ratios

tCO₂e per tonne biomass—

tCO₂e per tonne biochar—

kg biochar per tCO₂e credit—

⚠️ Ratio above 4 — check carbon content & yield inputs

❌ Ratio above 6 — physically implausible, adjust inputs

Carbon Footprint Analyser

Scope 1, 2 & 3 emissions for your organisation — BSI PAS 2060 aligned

Organisation

Employees (FTE)50

Scope 1 — Direct Emissions

Gas heating (kWh/yr)45,000

Fleet fuel (litres/yr)2,000

Scope 2 — Purchased Energy

Electricity (kWh/yr)80,000

Scope 3 — Value Chain

Business flights (hrs/yr)40

Staff commute (avg km/day)15

Results

—

Scope 1

—

Scope 2

—

Scope 3

Total Annual Footprint

—

tCO₂e per year

—

Gas heating

—

Fleet fuel

—

Electricity

—

Flights

—

Commuting

—

CarbonZero Offset Cost

At £12/tCO₂e (Gold Standard) —

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Project Feasibility Modeller

Model credit volumes, revenue projections and ROI for Gold Standard and Verra projects.

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Cookstove Emissions Estimator

tCO₂e savings per household from improved cookstove deployment. Based on CO2Balance East Africa CDM methodology.

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Credit Price Tracker

Indicative voluntary carbon market prices by standard, project type and vintage. Updated weekly.

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Create your account

Biochar Carbon Calculator

Carbon Footprint Analyser

Project Feasibility Modeller

Project Feasibility Modeller

Cookstove Emissions Estimator

Cookstove Emissions Estimator

Credit Price Tracker

Credit Price Tracker