Patent ID: 11921478
Assignee: CLEAN POWER RESEARCH, L.L.C.
Field: Computer technology (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 1:
2. A system according to claim 1, further comprising the steps of:
the HVAC system configured to operate in the absence of solar gain into the building during a duration of an empirical test;
the computer further configured to:
observe a change in the indoor temperature between the indoor temperature at the start of the empirical test and the indoor temperature at the end of the empirical test;
determine the indoor temperature as the average indoor temperature of the building over the duration;
determine the outdoor temperature as the average outdoor temperature of the building over the duration;
determine the internal electricity consumption as the average internal electricity consumption over the duration;
determine the average occupancy as observed in the building during the duration;
determine the solar resource produced over the duration; and
determine a status of the HVAC system of the building as observed in the building during the duration; and
find an efficiency of the HVAC system as a function of a thermal mass of the building and the change in the indoor temperature, the thermal conductivity and the temperature difference, the average occupancy, and the average internal electricity consumption, all divided by a rating of the HVAC system and the status of the HVAC system.