Achieving Zero Net Energy in Multi-family Buildings

ZNE Multifamily Apartments in Cloverdale, CA

Strategies for Achieving Zero Net Energy Multifamily Buildings

Project Overview

Recipient: Build It Green

Program: EPIC

Award Amount: $1,955,811

Co-funded Amount: $290,090

Agreement Number: EPC-15-097

Project Term: 7/1/2016 - 3/30/2021

Project Status: Active

Recipient Location:  Oakland, CA

Site Location(s):  Atascadero, CA; Calistoga, CA; Cloverdale, CA; Sunnyvale, CA

The Issue

There is a critical need for more research and evaluation of zero net energy multifamily design and construction approaches and practices. Many key design issues remain poorly understood in the multifamily sector, particularly for emerging all-electric heating, ventilating and air conditioning and domestic hot water technologies. These include the performance and economic trade-offs of technology solutions, lack of agreement between design and actual performance for key emerging technologies, and a lack of understanding of how these technologies will impact tenants and property managers.

Project Innovation

This project demonstrates the potential of breakthrough electric water heating and space conditioning technologies as a pathway to zero net energy. The project explores the complex, interdependent systems in multifamily buildings and how they work together to achieve zero net energy status for the buildings in a cost-effective manner. Four multifamily buildings, designed to be affordable, are to be evaluated in various stages of design and development. These buildings share a goal of all electric zero net energy construction with 100 percent renewable energy generation, and utilize innovative new heat pump technologies to serve the buildings water heating and/or space conditioning needs.

Project Benefits

The project demonstrates the technical and economic feasibility of zero net energy design for large multifamily projects and establishes design and installation best practices that minimize risks for developers. This includes documentation of best practices to ensure that energy and cost benefits of zero net energy are fully realized and identified, including the trade-offs between technology solutions, capital costs, operating and maintenance costs, environmental benefits and grid impacts.

Lower Costs: This project helps developers make more informed zero net energy design decisions which may reduce construction costs for multifamily buildings up to $2,000 per apartment and lower future operating (e.g., energy) costs for building owners and occupants.




Project Overview

Recipient: Build It Green

Program: EPIC

Award Amount: $1,955,811

Co-funded Amount: $290,090

Agreement Number: EPC-15-097

Project Term: 7/1/2016 - 3/30/2021

Project Status: Active

Recipient Location:  Oakland, CA

Site Location(s):  Atascadero, CA; Calistoga, CA; Cloverdale, CA; Sunnyvale, CA

Project Team

CEC Project Manager: Adel Suleiman

Recipient Contact: Bruce Mast

Match Partner(s): Corporation for Better Housing; MidPen Housing Corp.

Subcontractor(s): Association for Energy Affordability; Lawrence Berkeley National Laboratory; Redwood Energy; Stone Energy Associates; Propelsion; Abraxas Energy Consulting, LLC


 

 

For questions or additional information, please email RandDProjectinfo@energy.ca.gov

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