Facilities Management Utilities Division provides electrical distribution to the campus. The campus upgraded from a 60kv to a 115kv distribution system in the spring of 2007.

SCADA stands for Supervisory Control and Data Acquisition. SCADA systems are used to monitor and control industrial equipment. Generally SCADA systems will include:
On campus SCADA systems are used to operate many of the utility systems. The data used here is from the monitoring side of the campus utility systems.

The campus graph shows yesterday and today's total campus electrical usage in kiloWatts.
The section on the left of the graph highlighted in light blue represents yesterday's usage compared to one week prior. The section on the right is today's usage compared to one week prior. This allows you to see both a full day and the current day.

You can move around the map by clicking and dragging the map. If you double click the map will zoom in. Click the Satellite or Hybrid view buttons to see aerial photography.
The data on the map is refreshed once every 10 minutes.
Once you have clicked on a building you will see a balloon that displays the current usage in the building measured in kilowatts and a link to the building report.

By using the pull down menus at the top of the page you can select any two buildings on campus and compare their recent usage history. The scaling is dynamic and will adjust to the scaling needed to show whichever combination of buildings you select.
The left half of the graph (highlighted with light blue) shows yesterday's usage.
The right half of the graph shows today's usage compared with one week prior.

The table displays building history starting with the current month and going back in time as far as data is available. Columns show total kiloWatt usage and the approximate cost of that electricity to the campus. Non-State funded buildings are charged for their usage at this same rate. The peak in kiloWatts is shown; this is the maximum instantaneous draw during the period.
The kiloWatt hours per Day per thousand Square Feet (kWh/Day/1000sqft) column is useful when comparing buildings of a similar type (lab, dorm, classroom, administrative) that are of different sizes. It is a measure of energy density and ranges from a low of around 15 for Olson Hall buildings to a high in the high 900s for the Campus Data Center. Most Campus buildings range between 20 and 100 kWh/Day/1000sqft. Generally Labs and Kitchens use between 60 and 100 and other buildings range between 20 and 50.

Chris Cioni is an Associate Director in the Utilities department, responsible for campus energy systems. He has lead the development of campus SCADA and metering systems, including the acquisition of OSIsoft’s PI energy measurement and analysis tool. He joined UC Davis in 2002 and has a background in electric power production. Mr. Cioni is a licensed mechanical engineer and an alum of the UC Davis Graduate School of Management.
Alan Ebler is a senior engineer-supervisor responsible for the UC Davis Utilities SCADA instruments, meters and controls group. He joined UC Davis Utilities group in 2003. Our group installs, maintains, validates and calibrates instruments, utility meters and PLC controls for the High Voltage Distribution System, Central Heating and Cooling Plant, Primate Boiler System, Waste Water Treatment Plant and Building utility point of connection for all utility systems. We set the foundation for campus utility monitoring systems.
Joshua Morejohn is a licensed mechanical engineer with a background in the mechanical consulting industry. He joined the UC Davis Utilities department in 2007 and is working as a project engineer focused on energy savings opportunities in the central heating and cooling plants and their distribution systems. He was first introduced to OSIsoft’s PI system while working for GE Power Systems and is now involved with the development of the UC Davis PI system as an energy measurement and analysis tool. He hopes to leverage the system’s extensive data storage and analysis capabilities for in-house engineering projects as well as to enhance general campus awareness of energy usage.
Jason Aller has worked for the UC Davis Utilities department for over ten years. During that time he has worked with both the Supervisory Control and Data Acquisition (SCADA) and Budget Management systems. Jason designed the PI module database schema and wrote the programs needed to display the data on the web. He is an avid fan of the Google APIs. He is looking forward to the integration of the SCADA systems with the Facilities Management Asset Management System.
Additional thanks to Barbara Brady, Florencio Inzunza, Leslie Olsen, Robert Whitaker, Ed Henn, Wed Hardaker, and David Phillips.

The campus Supervisory Control And Data Acquisition (SCADA) systems communicate the data they collect from building meters to a OSIsoft PI System. The PI System allows the Utilities division of Facilities Management to monitor, maintain and analyze the usage of utilities that they provide to the campus. Using the supplied software development kit it was possible to quickly write VB.NET code to generate the graphs and tables you can see here. The addition of the Google Maps API made it possible to combine information provided by the campus GIS unit in a map format.

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