What should I read from a coal invoice to calculate emissions?
The quantity received in tonnes, the grade or GCV, and the moisture basis. Emissions need tonnes burnt and energy content: tonnes × GCV converted to NCV × the IPCC factor for the coal type. If the invoice gives only a grade, use your own lab GCV.
From the invoice
- Tonnes dispatched and received, and any shortage.
- Grade, GCV and the basis, such as air dried, as received or GAR.
- Total moisture and ash, if stated.
From your records
- Tonnes actually burnt, from stock changes.
- Lab GCV for each lot.
- The basis used for the factor, kept consistent.
What Senseible does here
Senseible reads fuel invoices into a dated, fingerprinted record, so each figure shows the quantity, factor and document it came from.
Sources: 2006 IPCC Guidelines, Volume 2: Energy, GHG Protocol Corporate Standard
Last reviewed 2026-10-22.