Senseible

I have no bills from my franchisees at all. How does the Greenhouse Gas Protocol estimate Category 14 from floor space and outlet type?

Multiply the floor space of each building type by an average emission factor per square metre per year, then add the types; or count buildings or assets times an average per building or asset. The Greenhouse Gas (GHG) Protocol warns this may be relatively inaccurate and limits tracking reductions. Its example gives 23,500,000 kilograms.

When the guide says to use it

The average-data approach should be used when purchase records, electricity bills or meter readings of fuel or energy use are not available or applicable. It estimates emissions for each franchise or group, from occupied floor space by building type or from the number and type of franchises.

The two formulas

What the guide warns about

The guide says the average-data approach may be relatively inaccurate and limits a company's ability to track the results of reduction actions. A franchisee that fits efficient lighting or a solar plant will not change your figure, because the factor is an average for the building type (our reading).

Where the factors come from

The guide names industry bodies such as the building industry, national statistics from government agencies, and the United States Energy Information Administration's Commercial Buildings Energy Consumption Survey. It gives no Indian figures. If some outlets later send bills, their average can stand in for the rest, labelled as an estimate (our reading).

The guide's example: food and clothing outlets

The guide says its factors are used for example purposes only. Do not use 30,000 or 10,000 as factors.

What Senseible does here

Senseible reads fuel invoices and electricity bills into monthly records, which covers your own Scope 1 and 2. It does not hold franchise floor areas or average factors for building types.

Sources: Greenhouse Gas Protocol Technical Guidance for Calculating Scope 3 Emissions, Category 14 (average-data method, Formulas 14.4 and 14.5, Example 14.2)

Last reviewed 2026-11-05. Arithmetic multiplies out to the guide's printed 23,500,000.