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Using Technology to Manage Energy. Bob Schoch-Director of Business Administration Tom Schneider-Supervisor of Operations. Applying Technology to Program Management. Data driven decision making Determine program potential Prioritize efforts Monitor performance for sustainability
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Using Technology to Manage Energy Bob Schoch-Director of Business Administration Tom Schneider-Supervisor of Operations
Applying Technology to Program Management • Data driven decision making • Determine program potential • Prioritize efforts • Monitor performance for sustainability • Applied technology • Automated temperature control systems • Technical skills of facilities staff • Retro-commissioning • Future plans
Determine Performance Gap The 2003-2004 PASBO Facilities Benchmarking Report showed that Council Rock SD was at the high end, at $1.80/gsf, of the highest 1/3 of utilities cost per square foot for districts with a student count over 7,000. The median for the group was $1.44/gsf and the lowest at $0.97/gsf. 14. Utilities per Square Foot of Instructional Building Space
Determine Performance Gap – Consultant In 2005, Aramark also provided an energy survey and benchmarking – Performance gap was difference between CRSD at $2.11/gsf and average performance at $1.65/gsf or best performance at $1.34/gsf. $/GSF Council Rock School District
Implementing Plans & Monitoring Progress Energy Intensity Change by School Jan05 – Dec05 Average 102 kBTU/GSF kBTU/GSF Jan06 – Dec06 Average 71 kBtu/GSF
Council Rock School District School Performance Through April 2008
16 52
Our Environmental Contribution (based on prevented carbon emissions) X 1,775 off of the road Planting 1,525 acres of X 1,045 powered for a year
Energy Program Principles • Results achieved in 30 months with less than $150,000 in capital improvements by applying simple principles to complex systems • Principle 1- Turn things off when they are not needed (and nobody will care) (Schools are occupied 10 hours/day for 200 days/yr for 2000 hours in a year of 365 days with 24 hours each or 8760 hours/year. Unoccupied 73% of the hours in a year.) • Principle 2- Set temperatures 2 degrees more comfortable than other government and education policies to foster support (Set heating at 70 not 68 degrees and set cooling at 76 not 78 degrees for 27% of the hours in a year. Use deep setbacks 73% of the time.)
Applied Technology • Automated Temperature Control Systems • Technical Skills of a HVAC Specialists • Retro-Commissioning • Future Plans and Abilities
Automated Temperature Control Systems • Remote Monitoring • Remote and Onsite Troubleshooting • Wireless Connectivity • HVAC Scheduling
Automated Temperature Control Systems – Remote Monitoring • Multiple people reviewing operation of the building. • Able to monitor operation and building conditions remotely. • Able to adjust operation in case of emergency closures (Snow Days).
Automated Temperature Control Systems – Troubleshooting • Remote troubleshooting - If assistance is needed from a higher technical skill, they are able to connect remotely to review operation. • Onsite troubleshooting – The ability to troubleshoot the equipment with a wireless laptop. Offers ability to have the equipment right in front of you when it is operating.
Automated Temperature Control Systems - Scheduling • Scheduling can be achieved on a zone or area basis. • Individual areas can be scheduled on and off depending upon activities. • The District achieves greatest conservation during unoccupied times. It is important to have systems off when not needed.
Technical Skills of a HVAC Specialists • The skills have moved from being a “wrench turner” to a computer user. • Must understand sequence of operations of complicated HVAC Systems. • Must understand the control software and how changes affect operation. • Must have computer skills and understand computer based controls.
Retro-Commissioning • Ensure equipment operates properly. • Ensure sensors are calibrated and responding. • Ensure valves operate correctly. • Ensure equipment turns off and stays off when commanded. • Modifying the operation of the building to suit it’s current use. • Rebuild zones, areas and how systems operate. • Have different equipment operate differently. • Via CO2 sensors • Adjusting temperature settings.
Future Plans and Abilities • Replace site light timers with Direct Digital Controls (DDC) and install photocells. • Control electrical demand by having the control system change temperature or lighting as demand increases. • Monitor rooms for occupancy with infrared technology. • Control the level of lighting in spaces. • Control outside air requirements by using CO2 and humidity sensors.