California Title 24 Manufactured Homes
This project developed and prototyped three all-electric manufactured homes that meet or exceed the state's energy efficiency standards using a combination of envelope and mechanical technologies. The project evaluated multiple envelope technologies and compared the cost-effectiveness of on-site and factory installation of PV systems.
The project worked with industry experts to vet potential technologies and identify barriers to entry into the manufacturing process or market. Field performance was evaluated using energy, temperature, moisture, and indoor air quality monitoring. The data collected informed on the barriers to commercialization of the proposed technologies and identified areas for process and manufacturing improvements to improve the technology's feasibility for scaled production and successful commercialization, while meeting Title 24 prescriptive requirements. The project also provided initial product and design review to find potential envelope technologies that can improve the overall envelope performance of manufactured homes while meeting fire-resistance requirements. The project convened an industry subject matter expert technical advisory committee to determine cost-effectiveness, feasibility of integration, identify specific barriers to entry into the manufacturing process or market, and identify technology packages with higher chances of success and scaled implementation.
The demonstration homes achieved average energy cost reductions of approximately 75% compared to baseline homes, with no panel overload events observed. This project is now complete. See the attached case study and presentation for results.
