The Commercial Building Energy Saver (CBES), a web-based software for use by small business owners and operators, was developed and can be found at http://cbes.lbl.gov/. CBES has been demonstrated with California cities and energy service providers. The tool has been used to evaluate technologies and scenarios to retrofit groups of buildings for the City of Berkeley and others to identify energy savings target, with or without incentive and rebate programs. The tool was highlighted at the 2020 Building Decarbonization Forum sponsored by the CEC.
This project developed a retrofit energy toolkit for SMB and demonstrated the Toolkit's capabilities on three to four building test sites. The project obtained input from stakeholders on retrofit packages, compiled utility smart-meter data and developed a load shape analysis module. The project also looked at the indoor environmental quality effects on retrofitted small office and retail buildings, and developed a comprehensive web-based retrofit tool for business owners and energy professionals.
This project has the potential to reduce energy use in buildings. The project team developed an energy retrofit analysis toolkit for small-to-medium size businesses that analyzes the energy performance of a building and identifies and evaluates retrofit measures to meet energy savings, energy cost savings, payback, and other criteria. Through use of this tool customers can lower energy costs. Additionally through use of an airflow measurement device, building operators can ensure they are not over ventilating.
The retrofit software makes it easier for building owners and operators to make informed upgrade decisions, which may lead to more energy efficiency upgrades. By increasing the penetration of energy efficiency upgrades there is a reduced demand on the utility grid, in-turn providing greater reliability to energy consumers.
Through the development of technologies to measure outdoor airflow rate, this project provided means for building operators to avoid under-ventilating spaces and subjecting tenants to poor air quality and to avoid sick building syndrome.
Key Project Members
Mary Ann Piette
Bay Area Climate Collaborative
City of Fremont
City of San Francisco
City of San Jose
City of Santa Clara
Office of Energy and Sustainable Development, City of Berkeley