Connected Thermostats Specification Version 1
On June 9, 2014 EPA announced a new approach under which residential HVAC controls would be recognized as ENERGY STAR based on their ability to save energy as demonstrated by aggregate data from homes. Minimum ease of use criteria have been dropped in favor of this approach. Now that products need field data to participate, EPA has renamed the forthcoming product category “Connected Thermostats”. Partners and other interested parties who would like to participate in this process are encouraged to send their contact information to ConnectedThermostats@energystar.gov to be added to the distribution list for specification development updates. This webpage will be updated periodically as new information becomes available.
Documents related to the previous ENERGY STAR Residential Climate Controls specification development have been archived and can be found on the Residential Climate Controls page.
Documents related to the ENERGY STAR Connected Thermostats Metrics Discussions please visit here.
ENERGY STAR Connected Thermostats Savings Method Seeds - June 18, 2019
ENERGY STAR Connected Thermostats Savings Method Seeds (PDF, 209.83 KB)
ENERGY STAR Connected Thermostats Savings Method Seeds - February 1, 2019
ENERGY STAR Connected Thermostats Savings Method Seeds
(PDF, 188.77 KB)
ENERGY STAR Connected Thermostats Savings Method Seeds - November 7, 2018
ENERGY STAR Connected Thermostats Savings Method Seeds
(PDF, 210.69 KB)
ENERGY STAR Connected Thermostats Savings Method Seeds and Resubmission - June 25, 2018
ENERGY STAR Connected Thermostats Savings Method Seeds
(PDF, 219.7 KB)
QuickstartMultiCore (PLAIN, 2 KB)
ENERGY STAR Connected Thermostats Savings Method Seeds - January 23, 2018
ENERGY STAR Connected Thermostats Savings Method Seeds (PDF, 183.47 KB)
ENERGY STAR Staged and Variable Capacity Data Call - August 25, 2017
ENERGY STAR CT Staged VC Data Request
(PDF, 596.14 KB)
ENERGY STAR Connected Thermostats Savings Method Seeds - August 11, 2017
ENERGY STAR Connected Thermostats Savings Method Seeds
(PDF, 188.49 KB)
Monday, July 3, 2017
CT Periodic Submission Delay Memo - July 3, 2017
ENERGY STAR Periodic Submission Delay Memo (PDF, 28.02 KB)
ENERGY STAR Connected Thermostats Savings Method Seeds - January 27, 2017
ENERGY STAR Connected Thermostat Savings Method Seeds 01/27/2017
(PDF, 185.44 KB)
Connected Thermostats Final Draft Specification Comment Matrix and Comments - January 6, 2017
Stakeholder Comment Matrix - ENERGY STAR Connected Thermostats Version 1.0 Final Draft Specification
(PDF, 21.52 KB)
Bosch Final Draft Comments
(PDF, 1.33 MB)
CA IOU Final Draft Comments
(PDF, 154.7 KB)
CEE Final Draft Comments
(PDF, 90.93 KB)
NEEP Final Draft Comments
(PDF, 53.13 KB)
NEMA Final Draft Comments
(PDF, 256.23 KB)
Nest Final Draft Comments
(PDF, 42.5 KB)
ENERGY STAR Program Requirements for Connected Thermostats Version 1.0 - December 23, 2016
ENERGY STAR Program Requirements for Connected Thermostats Version 1.0
(PDF, 640.9 KB)
Cover Memo for ENERGY STAR Program Requirements for Connected Thermostats Version 1.0
(PDF, 35.53 KB)
Version 1.0 Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats - December 19, 2016
Cover memo for Version 1.0 Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats
(PDF, 34.39 KB)
Version 1.0 Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats
(PDF, 637.65 KB)
Final Draft V1.0 Connected Thermostats Specification - December 2, 2016
ENERGY STAR Connected Thermostats Final Draft Cover Memo
(PDF, 95.31 KB)
ENERGY STAR Program Requirements for Connected Thermostats Version 1.0 Final Draft
(PDF, 609.52 KB)
Stakeholder Comment Matrix - ENERGY STAR Connected Thermostats Version 1.0 Draft 3 Specification
(PDF, 51.08 KB)
BPA Draft 3 Comments
(PDF, 117.31 KB)
CA IOU Draft 3 Comments
(PDF, 276.28 KB)
CEE Draft 3 Comments
(PDF, 640.12 KB)
NEEP Draft 3 Comments
(PDF, 80.81 KB)
Nest Draft 3 Comments
(PDF, 195.58 KB)
ENERGY STAR Connected Thermostats Final Draft Method to Demonstrate Field Savings - Nov 21, 2016
Cover Memo for Final Draft Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats
(PDF, 28.02 KB)
Final Draft Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats
(PDF, 301.21 KB)
Stakeholder Comment Matrix - ENERGY STAR Connected Thermostat Draft 2 Savings Method
(PDF, 25.6 KB)
California IOU Comments
(PDF, 235.22 KB)
NEEP Comments
(PDF, 82.96 KB)
Nest Comments
(PDF, 198.92 KB)
Connected Thermostats Draft 3 Version 1.0 Stakeholder Webinar - November 3, 2016
ENERGY STAR Connected Thermostats Draft 3 Version 1.0 Presentation Slide Deck
(PDF, 1.67 MB)
Datacall 3 Results and Observations - October 24, 2016
ENERGY STAR Connected Thermostats Datacall 3 Results and Observations
(PDF, 886.43 KB)
Draft 3 V1.0 Connected Thermostats Specification - October 18, 2016
ENERGY STAR Connected Thermostats V1.0 Draft 3 Cover Memo
(PDF, 94.49 KB)
ENERGY STAR Program Requirements for Connected Thermostats Version 1.0 Draft 3
(PDF, 287.95 KB)
Draft 2 Method to Demonstrate Field Savings - September 30, 2016
Cover Memo for Draft 2 Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats
(PDF, 112.33 KB)
Draft 2 Method to Demonstrate Field Savings of ENERGY STAR Connected Thermostats
(PDF, 234.59 KB)
Stakeholder Comment Matrix - ENERGY STAR Connected Thermostat Savings Method Draft 1 Version 1.0
(PDF, 13.35 KB)
Datacall 3 - September 19, 2016
ENERGY STAR Connected Thermostats Datacall 3
(PDF, 108.23 KB)
ENERGY STAR CT Discussion Document, Field Savings methods implemented in Software - September 15, 2016
ENERGY STAR Connected Thermostat Products Discussion Document
(PDF, 687.62 KB)
ENERGY STAR Connected Thermostats Meeting Field Savings Metric Webinar Slides - August 19, 2016
ENERGY STAR Connected Thermostats Meeting Field Savings Metric Webinar Slides
(PDF, 653.01 KB)
Connected Thermostat Stakeholder Instructions for Data Filtering - July 1, 2016
Connected Thermostat Stakeholder Instructions for Data Filtering
(PDF, 343.42 KB)
EIA Building America Climate Zone to Zipcode Database - May 5, 2016
EIA Building America Climate Zone to Zipcode Database (CSV, 768 KB)