Systems and Methods for Monitoring Energy Usage via Thermostat-Centered Approaches and Deriving Building Climate Analytics

摘要

A system and methods for capturing the time and temperature at which a thermostat(s) in a home turns on and turns off, and then analyzing those times and temperatures at particular granularities to identify improvements in energy usage. These time and temperature data points are some of the information needed to determine two performance attributes in the home: the ramping time when the HVAC system is returning the home to the comfort setting (which is called herein the system on time), and the ramping time for the home to hit the next on cycle.

主权项

1. A method for analyzing energy efficiency of a structure, comprising the steps of:
providing a temperature monitoring device within the structure, wherein the temperature monitoring device is capable of sensing temperature measurements according to a predetermined time interval; receiving a plurality of indoor temperature measurements associated with the interior of the structure from the temperature monitoring device for a predetermined time period at the predetermined time interval; receiving a plurality of external temperature measurements obtained from the exterior of the structure; determining an average indoor temperature and an average external temperature for the predetermined time period based on the received plurality of indoor temperature measurements and received plurality of external temperature measurements, respectively; determining a rate of change of the plurality of indoor temperature measurements over the predetermined time period; and determining a performance factor of the structure, wherein the performance factor comprises the rate of change of the plurality of indoor temperature measurements divided by a difference of the average indoor temperature and the average external temperature.