singularity-energy / open-grid-emissions

Tools for producing high-quality hourly generation and emissions data for U.S. electric grids
MIT License
72 stars 5 forks source link

v0.1.2 #251

Closed grgmiller closed 1 year ago

grgmiller commented 1 year ago

Merges v0.1.2 patch updates into main.

Fixes issue with assignment of subplant IDs Fixes an issue that was causing some generators/units to be assigned missing or incorrect subplant IDs. This issue caused several downstream issues including inaccurate hourly shapes being assigned to certain subplants, or inaccurate conversion of gross to net generation in the CEMS data. This patch ensures that every generator_id and unitid is associated with a non-missing subplant ID, and that these subplant assignments account for boiler-generator associations from EIA-860 (full details).

Fixes anomalous spikes in emission rate data Several grid regions were exhibiting anomalous dips in their regional emission intensity values due to an issue with the methodology used to shape data from plants with partial CEMS data. Specifically, the generation from certain non-emitting plants (e.g. nuclear, solar, etc) that had a fossil-fuel backup generator onsite were being assigned the intermittent hourly profile of the backup generator if that generator reported to CEMS. This resulted in data quality issues in both the generated and consumed emission rates for some regions. This patch fixes that issue by excluding all non-emitting generators and plants with subplants of mixed fuel types from using the partial CEMS methodology. (full details).

Other updates