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Case studies / Component manufacturing
Component manufacturing · Scopes 1 and 2 · Scope 3 · method · calculator

From Scopes 1 and 2 to a Scope 3 method – component maker

A project with options: first Scopes 1 and 2, then full Scopes 1–3, then a Scope 3 method and a calculator. The work runs in stages that match the company’s resources.

Scopes 1 and 2 Scope 3 Calculator
Client
Automotive component manufacturer
YEAR
2025
Scope of work
Scopes 1 and 2 → Scope 3 → calculator → own work
Model
In stages · 3 levels of maturity
Where the client started

The client was choosing the right scope of work. It needed emissions data. At the same time, the project had to fit its own resources and readiness.

So we did not offer one fixed option. We prepared several paths. In many manufacturing companies, full Scope 3 does not happen at once. First you measure your own emissions, understand the data and set the boundaries. Only then do you decide on the full value chain.

Main challenges
—whether to start with Scopes 1–2 or with Scopes 1–3 at once,
—the need for a Scope 3 method made for the company,
—whether to use a calculator for the team’s own calculations,
—matching the scope to the client’s resources,
—a process that can grow in the next years.
How the scope works

3 levels of maturity: first a report for Scopes 1 and 2, then Scope 3. Last come a calculator and training for the team.

The company can do the project in stages. It does not have to set up a full reporting system all at once.

This approach lowers the risk of overloading the company. The process grows step by step, from a basic emissions report to a more advanced system for Scope 3 data.

Scope of work

How we ran the project

01

Scopes 1 and 2

Calculation of direct emissions and indirect emissions from energy (Scopes 1 and 2).

02

Calculator and training

A calculator and training so that the team can work on its own, fully in line with the GHG Protocol for Scopes 1 and 2.

03

Scope 3 method

Rules for collecting data, choosing emission factors and recording what is left out.

04

Scope 3 calculations

Calculation of the selected relevant categories.

05

Calculator and training

A calculator and training so that the team can work on its own, fully in line with the GHG Protocol for Scope 3.

GHG Protocol Scopes 1 and 2 Scope 3 Excel calculator
Result

The client got a clear path: from a basic emissions report to a more advanced system for Scope 3 data. This model lowers the risk of overloading the company and lets the process grow step by step.

Conclusion

Not every company has to start with a full corporate footprint for all three scopes. Often the best plan is to go in stages. First come Scopes 1 and 2, and the team learns to work with them. Then you add Scope 3.

Not sure which scope to start with?

Let’s talk. We will choose stages that match your company’s resources and readiness.

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