1773 Oxford St, Berkeley, CA

Image Credit: Yes Duffy Architects

Category: Residential 

Energy Modeling Components: Envelope, Mechanical, Domestic Hot Water, Lighting 

Reason for Energy Modeling: Performance Compliance with the California Energy Code 

Completion Date: In Progress

Architect: Yes Duffy Architects

In the heart of Berkeley, CA, our team undertook an energy modeling project for a low-rise multifamily apartment building. The need for this modeling arose due to the building's window-to-wall ratios, which surpassed the limits set by the prescriptive approach of the energy code. Our meticulous evaluation spanned three distinct HVAC systems, ultimately zeroing in on the Variable Refrigerant Flow (VRF) system, which delivered promising energy modeling outcomes. 

For the domestic hot water needs, our design incorporated a high-efficiency heat pump system, ensuring optimal energy utilization. The software tools we employed were in strict adherence to the 2022 California Energy Code, renowned for its rigorous standards. A notable feature of our design was the inclusion of photovoltaic panels coupled with battery backup. This integration not only bolstered the building's energy efficiency but also contributed to the energy model results that showcased a commendable 2.8% improvement over the baseline. This achievement underscores our commitment to sustainable and efficient design practices, even in the face of stringent regulatory standards.