Cloud carbon accounting tools for scope 2 and 3

Cloud emissions now appear in several reporting obligations at once: scope 2 for purchased electricity, scope 3 category 1 for services bought from providers, and customer or investor questionnaires that arrive with their own definitions. Hyperscaler carbon dashboards were built for annual disclosure, but the teams being asked to act are platform, procurement and finance teams that manage accounts, regions and service catalogues.

The data is fragmented by design. Providers publish monthly totals with a lag, sometimes only at billing-account level, using their own methodology for grid intensity, PUE and renewable procurement. Customers hold usage and cost data at much finer granularity but no direct measurement of provider facilities. Market-based instruments such as renewable energy credits change the reported scope 2 figure without changing the electricity actually consumed, and the GHG Protocol Scope 2 Guidance requires both location-based and market-based results to be visible.

Failures usually show up at reconciliation. Provider totals do not match the figure in the corporate inventory, the same megawatt-hour is counted twice, a methodology change is not restated, or a managed service is omitted because it is not a virtual machine. Dashboards that allocate everything neatly by tag often hide a large unallocated remainder.

Evaluate tooling on methodology disclosure, allocation rules, dual scope 2 reporting, period close and export. Ask for the raw calculation behind a single service line and check that it reconciles to the provider's own report for the same period.