Project Leads: Lindsay Miller & Elliot Nahman
TGIF Grant: $56,000
Project Theme: Water Conservation & Tap Water
2009 Application Submission
Project Description: This project aimed to monitor water use in campus buildings, target and report the most wasteful facilities, and bring quantifiable savings to UC Berkeley while promoting campus sustainability and water conservation. These plans were accomplished through the installation and reading of water sub-meters in campus buildings. (See also Miller & Nahman's 2010 TGIF Grant Project Water Metering and Conservation)
Goals: Purchase meters for installation. Connect water meters in several campus buildings to the online Obvius server to get real time data. Perform short-term metering of specific bathrooms and other areas of water use. Install water sub-meters in several campus buildings to get water-use information at a finer resolution. Install a pilot project of dual-flush toilets and pint-flush urinals to conserve water. Establish a campus process of using metering to identify "worst-offended" toilets and to detect leaks and needed maintenance. Save PP-CS labor hours by being able to read meters electronically, rather than collect data manually from meters one-by-one. Reduce water and electricity use and assist UC Berkeley in achieving its Cal-CAP goals. (See application for detailed metrics)
The Water Metering and Sub-metering team has completely handed off the building-scale water meter connections to Obvius and PPCS. The team members' new task is to continue check-ups on the progress of the installations as they begin audits and submitting orders for the next phase (TGIF grant 2010) of their project.
Regarding sub-metering and toilets in Wurster Hall, they have had the help of 4 civil engineering undergraduates with using the ultrasonic water meter to audit the water consumption of toilets in Wurster Hall. They need to collect some more data before deciding which fixtures to replace with the high efficiency toilets and urinals. By June, the team was nearing the end of discussions with PPCS to determine which sub-meters to order for fine-scale metering of Wurster Hall, and was working with an undergraduate electrical engineering student to set up the wireless sensor network for collecting and viewing data.
2010-2011 Accomplishments and Final Results
The Water Metering projects installed and upgraded meters in 21 buildings with the help of PP-CS, connecting these meters to the campus Obvius server so that real-time metering updates can be viewed online. The project leaders
The Water Metering and Sub-metering project and the Water Metering and Conservation project were not without their challenges. The project leaders had intended to replace ten fixtures in the Wurster bathrooms with ten water efficient and dual flush fixtures, but the equipment slated for installation did not match PP-CS's required fixtures. Because the fixture installations were not completed, a post-water efficiency audit was not feasible for the Wurster fixtures.
Other challenges faced by the project leaders included managing a delayed project timeline and managing unforeseen expenses. Despite these challenges, it is a major accomplishment to have installed meters in 21 buildings and to have their data readily available online for the campus. The meters can count towards points in the LEED Certification process. The data could be used by the Energy Management OE initiative, for education and outreach, and for potential conservation competitions between building occupants. For now, the data will be displayed by the UC Berkeley Campus Dashboard project and will help PP-CS detect leaks in a timely manner, saving on labor and water costs. In the future, the data may be displayed by the Pulse Energy Dashboards.
Final Update: The project leaders met with PPCS in May 2012 and the latest figure was that 67 water meters had been installed/upgraded as a result of the collaborative project efforts. All of these meters will be connected with the Obvius system if they are not already connected.