🌍 Environment, Climate & Water · C4 Architecture · Pro
Carbon Emissions Accounting Platform
A platform that calculates a company's greenhouse gas emissions from energy bills, fuel use, travel and suppliers, and produces reports for disclosures like BRSR.
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Drawing diagram…
What this diagram shows
- Activity data is converted with standard emission factors
- Scope 1, 2 and 3 emissions are reported separately
- Every number can be traced back to its source document
Prompt used
Carbon accounting platform: sustainability teams upload or connect activity data such as electricity bills, fuel purchases, business travel from the travel tool and supplier spend from the ERP. A data ingestion service normalises units. A calculation engine applies emission factors from a factor library (GHG Protocol, national grid factors) to compute Scope 1, 2 and 3. A reporting service produces BRSR and CDP reports and a dashboard. An audit trail stores source documents.
Mermaid code
C4Container
title Carbon Accounting Platform
Person(sus, "Sustainability Team", "Collects data and reports")
Person(aud, "Auditor", "Checks the numbers")
System_Boundary(cap, "Carbon Platform") {
Container(web, "Web App", "React", "Data entry and dashboards")
Container(ing, "Data Ingestion", "Python", "Uploads, connectors, unit conversion")
Container(calc, "Calculation Engine", "Python", "Scope 1, 2, 3 emissions")
Container(fac, "Emission Factor Library", "Service", "Versioned factors")
Container(rep, "Reporting Service", "Java", "BRSR, CDP reports")
ContainerDb(db, "Emissions DB", "PostgreSQL", "Activity data and results")
ContainerDb(docs, "Evidence Store", "S3", "Bills and source files")
}
System_Ext(erp, "ERP", "Purchases and spend")
System_Ext(travel, "Travel Tool", "Flights and hotels")
Rel(sus, web, "Uses")
Rel(aud, web, "Reviews")
Rel(web, ing, "Uploads data")
Rel(ing, erp, "Reads spend")
Rel(ing, travel, "Reads trips")
Rel(ing, docs, "Stores evidence")
Rel(ing, db, "Writes activity data")
Rel(calc, fac, "Gets factors")
Rel(calc, db, "Writes emissions")
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