From email from the Colorado AirPollution Control Division:
The Air Pollution Control Division has published the Clean Heat Plan Emissions Calculation Guidance and CHP Calculation Workbook. The published documents can be found HERE. The Division has created these documents through a technical stakeholder process to develop a consistent approach to evaluating the emissions reduction projections from Clean Heat Plans required by Senate Bill 21-264.
Background: To address climate change and meet requirements from Senate Bill 21-264, the Air Pollution Control Division has consulted with the Public Utilities Commission related to the calculation methodology for evaluating clean heat plans for gas utilities. Starting in 2023, gas utilities are required to submit clean heat plans to the Public Utilities Commission or the Division to verify that they are designed to meet greenhouse gas reduction targets.
