How is the impact of a project measured, in practice?
An impact that cannot be verified is worthless. Here you learn the logic of measurement: physical indicators, declared method, verification levels — and how all of this becomes the Impact Score.
Why measurement is at the heart of everything
«We have reduced our environmental impact» means nothing until you answer three questions: by how much, measured how, verified by whom. Measurement is what transforms a good intention into a fact on which a bank can make a decision, a customer can place their trust, and a talent can build a reputation. This is why on Simbial measurement is not a final detail: it is the load-bearing structure of every project, decided before work begins.
Start with physical indicators
Impact is measured first and foremost in real units: kilowatt-hours saved, tonnes of CO2 equivalent avoided, litres of water, kilograms of recovered material, people trained. Each indicator declares its unit, its calculation method, and its evidence. This concreteness is a safeguard: physical numbers can be checked, recalculated, and challenged. Abstract scores without units cannot.
Handprint and footprint: the net balance
Every activity generates positive impacts (handprint) and negative impacts (footprint). An honest project counts both: if you install solar panels, you count the clean energy produced but also the manufacturing and transport footprint. The Net Positive Impact Score is the balance: handprint minus footprint, converted into points through public, versioned coefficients. If the balance is positive, the planet has genuinely gained.
The three dimensions: environment, society, economy
Impact is not only environmental. The Simbial method measures three dimensions: environmental (energy, emissions, resources, nature), social (people, skills, community, inclusion), and economic (value generated in a sustainable way, business resilience). A project may move one or more of them; the register keeps them distinct, because stating where you act is part of the honesty of measurement.
Verification levels: from estimated to certified
Not all numbers are created equal. A data point can be estimated (desk calculation), measured (collected in the field), validated (reviewed by an independent Impact Controller), or certified (with complete documentation). The Impact Score weights these levels differently: the stronger the verification, the more the point is worth. It is the same principle as experimental science: trust is built in stages, through independent checks.
The register: every point has a story
The Impact Score is not a magic number: it is the sum of recorded events, each with a date, project, indicators, and verification level. Anyone can open a score and see where it comes from. This traceability is the difference between a reputation and a showcase: a reputation can be verified, a showcase can only be believed.
What you can do now
If you are starting your journey: continue with the module on how a project works, where you will see measurement in action across the 4 phases. If you lead a company: identify the three most relevant physical indicators for your activity and ask yourself what verification level you could reach today. This is the beginning of every serious measurement journey.
Frequently asked questions
What is the Net Positive Impact Score?
It is Simbial's metric: it converts declared physical indicators (with method and evidence) into points, through public and versioned coefficients. The formula is handprint minus footprint: it counts the net balance, not just the positive side.
Who verifies impact data?
It depends on the level: data can be estimated, measured in the field, validated by an independent Impact Controller, or certified with documentation. The higher the level, the more the score counts.
Can social impact also be measured?
Yes: people trained, hours of skills transferred, inclusion, community well-being. The same rules as environmental impact apply: clear units, declared method, evidence.
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