Project Sunburst St. Marys County Public Schools Integration of - PowerPoint PPT Presentation

Project Sunburst

St. Mary’s County Public Schools • Integration of Green Features since 1993 • Energy Performance Contract from early 1990’s • 2004 Green Charrette for Evergreen Elementary School • 2005 Created Energy Manager • 2007 Sustainable Vision for Management • 2008 Commissioning of Buildings • 2009 Established “Green School Coordinators” • 2010 Project Sunburst • 2014 Energy Efficiency Projects • 2014 23 out of 27 Schools MAEOE Certified Green School

Project Sunburst • Reduction in Electric Rates • Hedge Against Increases in Electric Rates Due to Increases in Fossil Fuel Costs or Surcharges • Demonstration of Environmental Stewardship • Educational Tool

Project Sunburst Site

Power Factor PF = 109,857/137,000 = .80 Billable Demand = 200 kW x.90 / .80 = 225 kW 81,340 PF = 36,106/88,993 = .40 Billable Demand = 200 kW x.90 / .40 = 450 kW kVAh 137,000 kVarh 88,993 66.1 36.5 109,857 36,106 kWh

Financial Changes • Decrease in kWh rates by 10% • Increase in billable demand (kW) rates by 30% • Decrease in SREC wholesale rates by 50%

Educational Opportunities • Solar Facility Monitoring System • Passive Solar Tracker Installed by Dr. James A. Forrest Career and Technology Center Students • Passive Solar Tracker as a learning tool for Dr. James A. Forrest Career and Technology Center Students • Career Day Participation

Solar Lessons • Know your tariff rates and structure • Pay attention to termination values and schedule • Systems are reliable • Opportunities for greater integration into building systems