How does a Morbi wall clock maker work out carbon per clock?
Share the unit's monthly electricity and fuel emissions across clocks made, then add the bought parts per clock: plastic case, glass, movement and packaging, each with a supplier or database factor.
Steps
Energy: kWh x 0.710 for the month, plus any fuel.
Divide by clocks finished that month.
Add materials per clock with their sources.
Bought movements
Quartz movements may be imported. If the supplier gives no figure, mark that line as a gap instead of filling it.
What Senseible does here
Senseible reads the energy invoices behind the making stage into a fingerprinted Scope 1 and 2 record, and keeps material invoices on the Scope 3 trail. Material factors come from your supplier or a named database and are labelled with their source, so the product figure can be traced line by line.
Sources: ISO 14067 Carbon footprint of products, GHG Protocol Corporate Value Chain (Scope 3) Standard
Last reviewed 2026-10-21.