Savings Splash at Stanford University

About This Project

New Control System Makes a Savings Splash at Stanford’s Arrillaga Outdoor Education & Recreation Center

 

As Stanford University continues to dive deep pursuing energy savings, we’re supporting the forward thinking institution with full project implementation of energy retrofits. Taking a plunge to reduce energy use at the campus’ Arrillaga Outdoor Education & Recreation Center, we recently completed a DDC controls upgrade project.
 

Design-Build Controls Upgrade

 
The project involved full design-build specifications for a complete JCI MetaSys controls upgrade and numerous equipment and controls measures, listed below. We managed the project on Stanford’s behalf, working with Johnson Controls from bid proposal through commissioning. We are still providing M&V on the project.
 
Based on interval data for January and February of 2018, chilled water use was reduced by 70%, electricity reduced by 19%, and heating hot water reduced by 51%. Updated savings will be posted late summer 2018.
 

Energy Efficiency Project Measures

 

  • New temperature sensors for full economizer operation
  • Proper sequences for heat recovery pipe
  • Adding VFDs to hot water pumps with new DP sensors
  • Improved control of pool heating
  • Best in class trim and respond resets on temperature and pressure setpoints
  • Title 24 standard VAV box control (not easy with JCI)
  • Replaced air handler temperature sensors
  • Revised central plant chilled water staging

 

Additional Energy Saving Projects at Stanford

 

Annual Energy Savings

$126,000

Chilled Water Use Reduction

70%

Hot Water Use Reduction

51%

Electricity Use Reduction

19%

Date

2018

Category
Higher Ed, Measurement & Verification (M&V), Project Implementation
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