Demonstration of Advanced High-Efficiency, Low Capacity HVAC Systems
This project aims to demonstrate that low capacity heating systems (less than 40,000 Btu) are feasible in Southern California homes.
The CAM is reviewing the draft final report which was submitted on September 1, 2021. A final meeting is scheduled for October 6, 2021. The project findings indicate that the lower capacity, ultra low NOx HVAC unit and envelope improvements resulted in an average natural gas reduction of 33-38 percent[span] [/span]for space heating and electricity reduction of 43-40 percent[span] [/span]for cooling, respectively. This resulted in approximate total annual savings of 57 therms and 412kWh electricity,[span] [/span]or $166 per household. Assuming 6 percent of existing and newly constructed homes do similar upgrades, the estimated annual savings will be 880,000 therms, 6.4 GWh and $2.6 M in cost savings.[span] [/span]
This project combines home retrofits, such as air sealing and insulation upgrades, with an advanced energy efficient low-capacity HVAC system in five existing single family homes located in the Los Angles Basin (climate zone 6). The goal is to demonstrate that a retrofitted home using a lower capacity HVAC system will show energy savings greater than 30 percent compared to the same with home with no retrofits and equipped with a standard HVAC system. Also, this low-capacity HVAC systems will reduce natural gas use at the homes, resulting in less gas consumption in the area affected by the Aliso Canyon gas leak
Natural gas reduction for space heating is estimated to be 30 percent per home compared to standard natural gas units, yielding utility bill savings.
Key Project Members
ADM Associates, Inc.
Rick Chitwood Associates
Frontier Energy, Inc.
Southern California Gas Company (SoCalGas)
Utilization Technology Development