Question 1

What is the Grid Emission Factor? Why 0.4999 tCO₂/MWh?

Accepted Answer

The Grid Emission Factor (GEF) is the rate of CO₂ emitted per unit of electricity produced by the national grid. The value 0.4999 tCO₂/MWh is the Combined Margin published by EGAT and TGO (Thailand Greenhouse Gas Management Organization) in 2023, used for T-VER carbon credit calculations.

Question 2

Can I actually sell carbon credits from solar panels?

Accepted Answer

Yes! Businesses can register their solar projects under TGO's T-VER program to earn certified carbon credits. Current trading prices are approximately 100-200 THB/tonne CO₂, depending on the standard and buyer. CapSolar can help with the registration process.

Question 3

How does solar energy help with ESG reporting?

Accepted Answer

Solar panels directly reduce Scope 2 greenhouse gas emissions (purchased electricity), which is a key metric in all ESG reporting standards including GRI, TCFD, CDP, and SET Sustainability Reports. Additionally, solar generation can qualify for Renewable Energy Certificates (RECs).

Question 4

What reports can I use these CO₂ calculations for?

Accepted Answer

You can use these in Sustainability Reports, Carbon Footprint Assessments, ESG Disclosures, SET Sustainability Awards, T-VER registration, Carbon Neutral Target Assessment, and Science-Based Targets (SBT). For maximum accuracy, use actual meter readings after installation.

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