GS TPDDTEC v4.0 — Emission Reduction Calculator

Project Information

Set up the monitoring period and general project parameters.

Step 1 of 4

General Details

Project / Programme Name

Project Developer

Country / Region

Report Prepared by

Crediting Period

Monitoring Period

Start Date First day of monitoring period

End Date Last day of monitoring period (inclusive)

Monitoring Period (days) D

—

Auto-calculated from dates

Monitoring Year Label

Calculation Settings

GWP Version Global Warming Potential basis

Leakage Approach

Emission Reduction Method

Select the appropriate calculation method per Section 3.10 of TPDDTEC v4.0.

Step 2 of 4

ℹ️

Choose the method that matches your project. Most improved biomass cookstove projects use Method 1 or 2. Method 3 applies when the baseline and project fuels differ (e.g., switching from wood to solar or biogas).

M1

Same Fuel — Efficiency Only

Baseline and project use the same fuel. Reductions come exclusively from improved efficiency. Uses measured SFS from field tests.

All scales · Wood or Charcoal

M2

Same Fuel — Default Baseline

Same as Method 1 but uses the IPCC default baseline consumption of 0.5 t/capita/yr for fuelwood. No BFT required.

Micro & small scale · Wood only

M3

Fuel Switch

Baseline and project fuels are different (e.g., wood → solar, wood → LPG). Reductions from both fuel switch and efficiency gains.

All scales · Mixed fuels

Method 1 Formula

ER_y = Σ (N_b,p,y × U_p,y × SFS_p,b,y × NCV_b × (fNRB_b,y × EF_CO2 + EF_nonCO2)) × 0.95

N_b,p,y = Technology-days in project database | U_p,y = Usage rate (fraction) | SFS_p,b,y = Specific fuel savings (kg/stove·day = P_b − P_p) | NCV_b = Net calorific value of baseline fuel (TJ/ton) | fNRB_b,y = Fraction non-renewable biomass | EF_CO2 = CO₂ emission factor (tCO₂/TJ) | EF_nonCO2 = Non-CO₂ emission factor (tCO₂e/TJ)

Input Parameters

Enter monitored and fixed data for each baseline/project scenario pair.

Step 3 of 4

Scenario 1

Emission Reduction Results

Monitoring Period

Total Emission Reductions

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tCO₂e / monitoring period

Summary Calculation Table

Scenario Pair	N_b,p,y (days)	U_p,y	Gross ER (tCO₂e)	Leakage Factor	Net ER (tCO₂e)
Total Net Emission Reductions					—

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Calculated in accordance with Gold Standard TPDDTEC v4.0 (Reduced Emissions from Cooking and Heating, Publication Date 07/10/2021). Emission factors and default values sourced from IPCC Guidelines and methodology defaults.