METHODOLOGY
The number is only the beginning.
Object Carbon is designed so someone can inspect how a result was formed, what supports it, and where uncertainty remains.
01Boundaries and reporting periods＋
Every result identifies the object, covered activity, period, included emission sources, and exclusions.
02Activity data and evidence＋
Direct connections and independently verified records carry more confidence than user-supplied data or modeled estimates.
03Electricity: location-based view＋
Grid-average or time-and-location-specific emission factors estimate emissions associated with physical electricity supply.
04Electricity: market-based view＋
Qualifying supplier products and contractual instruments are assessed separately, with ownership, geography, vintage, and retirement evidence.
05Solar, exports, and batteries＋
Generation, onsite use, exports, imports, and battery flows are separated. Renewable claims depend on retained or retired attributes.
06Vehicles＋
VIN-derived specifications, odometer activity, fuel type, efficiency assumptions, and uncertainty produce a bounded estimate.
07Flights＋
Route, cabin, travelers, distance, and non-CO₂ methodology are disclosed with uncertainty rather than hidden behind a single number.
08Credits and retirements＋
Carbon credits are kept distinct from renewable-energy certificates. Allocation links a retirement to an object and period without converting it into a consumption reduction.
09Uncertainty and corrections＋
Every methodology is versioned. Material corrections update the public record and preserve the earlier audit history.
PRIMARY REFERENCES