LCA Calculator
Full lifecycle assessment using Puro Standard equations
Life Cycle Assessment Calculator
For: Carbon Sink CS-2026-12
Puro Standard Equation:
Net CO2e = Cstored - Cbaseline - Closs - Eproject - Eleakage
1
CARBON STORED (Cstored)Input Parameters:
Biochar Dry Mass:7,620 kg
(Sum of all batches, impurity-adjusted)
Organic Carbon (Corg):75.4% (avg)
H/Corg Ratio:0.52 (avg)
Persistence Modeling:
H/Corg < 0.70: Qualifies for CORC200+
Persistence Factor:0.95 (conservative)
Durability:Several centuries
Calculation:
Cstored = (7,620 kg × 0.754) × (44/12) × 0.95 = 10.38 t CO2e
2
BASELINE REMOVAL (Cbaseline)Baseline Scenario:New Facility
Counterfactual Analysis:
- No biochar production before project
- Biomass would have been left to decay
- No carbon sequestration in baseline
3
CARBON LOSSES (Closs)Loss SourceAmountCalculation
Production Handling
0.08 t1% of CstoredDust during loading/unloading
Transport
0.05 t0.5% of CstoredWind losses, spillage
Application
0.08 t0.8% of CstoredDust during spreading
Total Closs0.21 t CO2e (2% of total)
4
PROJECT EMISSIONS (Eproject)Scope 1 (Direct):0.45 t CO2e
Scope 2 (Electricity):0.32 t CO2e
Scope 3 (Transport):0.18 t CO2e
5
LEAKAGE (Eleakage)Market Leakage Assessment:
- Biomass sourcing: Local agricultural residues
- No displacement of other uses
- No feedstock diversion
Activity Shifting:
- No land use change
- No alternative biochar displaced
Conservative Estimate:
Eleakage = 0.15 t CO2e (1.5% of Cstored)
NET CO2e REMOVAL CALCULATION
Cstored+10.38 t CO2e
Cbaseline-0.00 t CO2e
Closs-0.21 t CO2e
Eproject-0.95 t CO2e
Eleakage-0.15 t CO2e
NET REMOVAL9.07 t CO2e
Removal Efficiency
87.4%
(Net Removal / Cstored)
High Quality RemovalUncertainty Analysis
| Parameter | Best Estimate | Range | Uncertainty |
|---|---|---|---|
| Cstored | 10.38t | 9.86-10.9t | ±5% |
| Eproject | 0.95t | 0.86-1.05t | ±10% |
| Closs | 0.21t | 0.18-0.24t | ±15% |
| Eleakage | 0.15t | 0.12-0.18t | ±20% |
Net Removal Range:8.52 - 9.62 t CO2e
Confidence Level:95%