How does a Thrissur gold jewellery workshop work out energy carbon per gram?
Add the CO2 from the workshop's electricity and the LPG or gas used for melting and soldering, then divide by grams of jewellery finished. This covers making only; the gold itself is a separate and far larger figure that depends on mined or recycled metal.
What goes in
- Electricity: kWh from the bill times 0.710 kg CO2 per kWh, the CEA grid factor.
- LPG for torches and melting: kg from cylinder invoices times the IPCC default, about 3.0 kg CO2 per kg of LPG.
- Grams finished in the same month, from the job register or stock book.
Keep metal separate
Gold's own footprint is set by where it came from and is many times larger than workshop energy. Report it as a separate line so a buyer can see what you control.
Shared premises
Many units share a building. Use your own meter if you have one; otherwise split by connected load and hours, and say so.
Illustrative month for a small workshop
- Electricity: 900 kWh x 0.710 = 639 kg CO2
- LPG: 60 kg x 3.0 = 180 kg CO2
- Finished jewellery: 4,000 g
- Making stage: 819 / 4,000 = 0.20 kg CO2 per gram
Quantities are illustrative. The LPG factor is rounded from IPCC 2006 defaults; use your own bills.
What Senseible does here
Senseible reads electricity bills (CEA grid factor 0.710 kg CO2 per kWh, CO2 Baseline Database version 21.0) and diesel, LPG and gas invoices (IPCC 2006 defaults) into a dated, fingerprinted Scope 1 and 2 record for each site. Intensity per unit uses the activity count you enter, and estimates are labelled as estimates.
Sources: CEA CO2 Baseline Database for the Indian Power Sector, IPCC 2006 Guidelines, Volume 2 Energy, GHG Protocol Corporate Standard
Last reviewed 2026-10-21.