Recalculated 2008 loss factors
Loss factors are used to determine the transmission losses charges that apply to system access service under the following rates of the ISO tariff in 2008:
- Rate STS, Supply Transmission Service
- Rate XOS, Export Opportunity Service
- Rate IOS, Import Opportunity Service
- Rate DOS, Demand Opportunity Service
The AESO must recalculate loss factors and losses charges in accordance with Decisions 790-D04-2016 and 790-D06-2017 of the Alberta Utilities Commission in Proceeding 790, Complaints Regarding the ISO Transmission Loss Factor Rule and Loss Factor Methodology. The recalculated 2008 loss factors are provided here:
- Recalculated 2008 loss factors effective 1 Jan 2008 to 31 Dec 2008 [Posted: Dec 14, 2020]
The AESO must provide additional information related to the recalculated loss factors. This additional information is provided here:
- Hourly merit order data for 2008 loss factors (ZIP file, 10 MB) [Posted: Dec 14, 2020]
- Sample of hourly load data for 2008 loss factors (ZIP file, 2 MB) [Posted: Dec 14, 2020]
- Process for requesting access to system topologies
- Procedure to determine transmission system losses for loss factor calculations [Posted: Dec 14, 2020]
- Software and scripts used to calculate hourly raw loss factors (ZIP file, 89 MB) [Posted: Dec 14, 2020]
- Workbook showing calculations for 2008 loss factors (Microsoft Excel, 71 MB) [Posted: Dec 14, 2020]
Actual losses on the transmission system were 2,672 GWh for 2008 and the average loss factor for the transmission system was 4.69% for 2008.
