Building Energy Efficiency
The ZERO Code is a building energy standard that includes both prescriptive and performance paths for building energy efficiency compliance (based on existing standards that are widely used by municipalities and building professionals worldwide) and is supported by compliance tools and simulation software.
While the ZERO Code currently incorporates the latest ASHRAE Standard 90.1-2016 requirements for minimum building efficiency, other existing or new prescriptive and performance standards can also be accommodated, such as the International Green Construction Code (IgCC), ASHRAE Standard 189.1-2017, or any building energy efficiency standard that exceeds ASHRAE Standard 90.1-2016.
A California ZERO Code incorporating Title 24-2019 requirements is currently in development.
The ZERO Code offers code adaptable language and a flexible approach for incorporating renewable energy, both through on-site generation and/or off-site procurement. By establishing a flexible approach, the ZERO Code is applicable to all new commercial and institutional buildings, and mid- to high-rise housing, including buildings with limited on-site renewable energy generating capacity (e.g. buildings in dense urban environments).
A technical support document is available that describes several potential options for off-site procurement of renewable energy within the context of codes, and presents a process for evaluating and assigning a weight to each procurement method.
ZERO Code – Software
The ZERO Code is supported by an Energy Calculator that eases the implementation process and reduces errors when applying the prescriptive compliance path. An Application Program Interface (API) for the software has been developed, enabling the software to be implemented as a website or an application for smart phones and tablets. Ultimately this approach will save years and valuable resources that would otherwise be spent on developing new compliance tools and mechanisms.
ZERO Code – Adoption
The ZERO Code can be incentivized or required by adopting jurisdictions. To download the ZERO Code and Technical Support Document, visit the ZERO CODE page.