Operational records → Instruments records contractual instruments for market-based Scope 2: Energy attribute certificate, Supplier-specific factor or PPA.
Add an instrument
- Click New instrument.
- Choose the asset and, when the asset has several Scope 2 sources, the source it applies to.
- Choose the Type and enter Valid from and Valid to, the MWh, the Emission factor (value, unit and gas) where the contract states one, the Certificate reference and the Supplier.
- Save, and attach the certificate or contract with Evidence.
Record certificate retirements
Certificates count for your market-based Scope 2 only once the registry has retired (cancelled) them for you. Record each retirement statement on the instrument:
- On the instrument’s row, click Retirements.
- Click Add retirement and enter the Registry, the First serial (and Last serial for a range), the MWh retired, the Retirement date, who the certificates were Retired for and, if stated, the production period.
- Save. The table shows Retired MWh per instrument.
- The retired MWh of an instrument cannot exceed its MWh, and a serial can be retired only once per registry, so the same certificate cannot be claimed twice.
- An energy attribute certificate that is not fully retired is still used in full, but the calculation shows the warning W-INSTRUMENT-NOT-RETIRED and the table marks it with ⚠ until the retirements are recorded.
- Retirements follow the instrument’s reporting periods: once a month in its validity is locked they cannot be added or changed.
How it is used
- Location-based and market-based Scope 2 are always both calculated. The Scope 2 method filter on the dashboards only chooses which one is shown.
- Without instruments, market-based Scope 2 falls back to the other factors in the hierarchy.
- E031 means invalid instrument data, for example MWh not greater than zero or a validity that ends before it starts.
Instruments can also be imported with the Energy sheet of the Excel template.