Post on 27-Nov-2021
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UC Davis Path to Carbon Neutrality Using the OSIsoft PI System
David Trombly
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Achievements How we use data• Optimization• Capacity planning• User engagement• Operator feedback• Scheduling and
dispatch of equipment• Reporting, verification
of savings• Research and
instruction
Sustainability at UC Davis
• 90% renewable or carbon neutral electricity in 2019
• >$13M energy savings since 2009
• >36% reduction in population-weighted water use
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Key concepts• Value of a single data
infrastructure• Power of data in the
hands of domain experts
• Real time data is an integral part of our business
• Real time data enables campus as a living lab
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UC Davis Overview
• 35k Students• 23k Faculty & Staff• 1000+ Buildings, 180
over 10,000 SF• 11.3M SF total; 5,300
acres Land• Founded 1905, Average
Building Age: 41 years
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Carbon Neutrality Initiative
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Renewable Electricity (CY 2019)
Hydropower24%
Onsite Solar14%
Offsite Solar17%
Offsite Wind35%
Grid Electricity
11%
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Energy Savings
> $13M savings since 2009
1,700,000
1,800,000
1,900,000
2,000,000
2,100,000
2,200,000
2,300,000
9,500,000
10,000,000
10,500,000
11,000,000
11,500,000
12,000,000
12,500,000
Energy Use in
MMBT
Us/Year
Build
ing Area
in Squ
are Feet
Maintained building space served by campus energy systems (MGSF)
Total Energy (MMBTUs)
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Water savings results
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Early progress
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2007 2010 20142012
Campus Energy Feedback System
Dorm Energy Challenge
Campus Energy Dashboard
Building Metering
Dashboard
Plant Operating Screens
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Early progress
2007 2010 20142012
Campus Energy Feedback System
Dorm Energy Challenge
Campus Energy Dashboard
Building Metering
Dashboard
Plant Operating Screens
• Monitoring, tracking project outcomes, trending
• Early user engagement
• Plant operational and performance metrics
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Early progress
Plant retrofits Large building retrofits
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Onsite Renewable Electricity
13.7 MWAC behind the meter solar farm; ~15% of total electricity
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Offsite Renewable Electricity
Five Points: 60 MWAC
Giffen: 20 MWAC
Partnership with UC System; UCD receives 24% of output
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Active Commissioning Enterprise
Initial seed funding from campus
Ultimately self‐funding from savings: expected in FY19‐20
Green revolving fund – mechanism to reinvest savings
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Building CHW Utilization
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Advanced Operator Feedback/Optimization
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Preliminary Optimization Results
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Prior to Training
Savings to Date: ~$15,000Expected Annual Savings: ~$150,000
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Verifying Savings
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Meter Quality• Energy Balance:
Electricity + Steam - CHW = 0
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WiFi/Schedule Alerting
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Good:
Bad:
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Energy Feedback: ceed.ucdavis.edu
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Energy Feedback: ceed.ucdavis.edu
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Energy Feedback: thermoostat.ucdavis.edu
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Collaboration with Research and Instruction
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• Providing data for courses and projects
• Using campus infrastructure for student projects and research studies
• Helping train students through internships
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Next steps: Steam to Hot Water Conversion
Used PI System data for improved capacity planning
62% reduction in campus gas use, 10% increase in campus electricity use
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Next Steps
Additional renewables investment to cover electricity emissions Deep energy efficiency Expanded user engagement, better communication initiatives
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