The RTF's Standard Information Workbook (SIW) houses assumptions and data that are used across multiple measures and standard protocols. The SIW serves as a common starting point for repeatedly accessed values. 

Standard Information Workbook Version History Upload Date Notes
RTFStandardInformationWorkbook_4_8 3/24/2023 Updated GDP deflators for 2019-2033 to most recent estimates and forecasts. Removed unused links to other files.
RTFStandardInformationWorkbook_4_7 7/13/2022 Weighting Factors tab has been updated to reflect the newly adopted representative weather cities and HZ/CZ weightings 
RTFStandardInformationWorkbook_4_6 3/21/2022 Corrected GDP deflator formulas for determining the multipliers for converting to different base years 
RTFStandardInformationWorkbook_4_5 11/2/2021 Updated Prototype City Heating and Cooling Zone weightings and measure lifetime sheet to reflect current UES measures.
RTFStandardInformationWorkbook_v4_4 09/16/2021 Updated Weighting Factors sheet with new Prototype City Heating and Cooling Zone Weightings. 
RTFStandardInformationWorkbook_v4_3 07/09/2021 Measure lifetime sheet updated to reflect current UES measures
RTFStandardInformationWorkbook_v4_2 03/10/2020 Updated the GDP deflator assumptions for consistency with Council Plan analysis. 
RTFStandardInformationWorkbook_v4_1 06/03/2019 Updates approved at the March 2019 RTF Meeting. QC complete. 
Methodology Documentation for SIW 06/03/2019

During the latest update (v4.1) of cost estimates for SIW, two measures, insulation and heat pumps, required more complicated statistical modeling than Excel could conduct. For transparency, this document explains the methodology from these alternative analyses.

RTFStandardInformationWorkbook_v4_0 03/28/2019

Updates approved at the March 2019 RTF Meeting. Most tabs updated, except ASHP costs. Currently undergoing QC.

RTFStandardInformationWorkbook_v3_2 (4.5 MB Excel)

02/21/2018 Measure lifetime sheet updated to reflect current UES measures. 
RTFStandardInformationWorkbook_v3_1.xlsx 08/09/2017 Updates approved at the May 2017 RTF Meeting. QC complete. 
RTFStandardInformationWorkbook_v3_0.xlsx 07/10/2017 Updates approved at the May 2017 RTF Meeting. Awaiting completion of QC. 
RTFStandardInformaitonWorkbook_v2_6.xlsx  (6 mb Excel) 07/14/2016 Approved updates at the May 2017 RTF Meeting.
RTFStandardInformationWorkbook_v2_6 PENDING QC.xlsx(6 mb Excel) 03/17/2015 QC Complete.
Standard Information Workbook_v2.2(6 mb Excel) 07/30/2015 Updated commercial HVAC interaction factors.
Standard Information Workbook_v2.0 05/20/14 Updated GDP Deflator & Res. lighting costs; Added Wood fuel credit, Res. HVAC interaction factors, EER values, & Res. water heater recovery efficiencies.
Standard Information Workbook_v1.5 08/14/13 Updated as per QC review. Added more recent AWWA water survey results, labor markups, minor cell reference fixes, and updated lifetime reference table.
Standard Information Workbook_v1.3 06/26/13 Adopted by the RTF on 06/18/13. Includes updates and tabs for HVAC interaction fators, weightings, and updated lifetime reference table.
Standard Information Workbook_v1.0 04/16/13 First adopted version. Includes Council deflator calculation.