Energy EfficiencyEnergy Efficiency

FLL TeamFLL Team

Our SchoolOur School Center Grove Middle Center Grove Middle

School NorthSchool North Approx. 841 Approx. 841

studentsstudents Approx. 80 Approx. 80

Staff/TeachersStaff/Teachers 2 gyms, IMC, café, 2 gyms, IMC, café,

LGI, labs, classroom, LGI, labs, classroom, fitness rooms…fitness rooms…

Energy AuditEnergy Audit

ElectricityElectricity

$15,567.18/ month ($186,806.18 06-$15,567.18/ month ($186,806.18 06-07)07)

Natural GasNatural Gas

$6,112.54/month ($73,350.48 06-07)$6,112.54/month ($73,350.48 06-07)

Energy AuditEnergy Audit

ElectricalElectrical ElectronicsElectronics

LightsLights Air Handling SystemAir Handling System ComputersComputers CopiersCopiers TelevisionTelevision ProjectorsProjectors Misc.Misc.

Natural GasNatural Gas Heating and CoolingHeating and Cooling CookingCooking

Heating and CoolingHeating and Cooling

British Thermal Unit (BTU)British Thermal Unit (BTU) Heating: The quantity of heat required to Heating: The quantity of heat required to

raise the temperature of 1 lb. of water 1 raise the temperature of 1 lb. of water 1 degree Fahrenheit - degree Fahrenheit - BoilersBoilers

Input ~ 14,000 MBTUInput ~ 14,000 MBTU Output ~ 8,400 MBTUOutput ~ 8,400 MBTU Cooling Ton: The amount of heat required Cooling Ton: The amount of heat required

to melt a ton (2000#) of ice at 32 degree, to melt a ton (2000#) of ice at 32 degree, 288,000 BTU/24 hours - 288,000 BTU/24 hours - ChillersChillers

Chillers ~ 230 cooling tons eachChillers ~ 230 cooling tons each

Chiller = CoolingChiller = Cooling

Boiler = HeatingBoiler = Heating

Alternative Energy SolutionsAlternative Energy SolutionsLong TermLong Term

Geothermal – Geothermal – heating and heating and coolingcooling

Solar – electricalSolar – electrical Wind – electricalWind – electrical

Alternative Energy SolutionsAlternative Energy SolutionsShort TermShort Term

Cost Avoidance Program (CAP)Cost Avoidance Program (CAP) We can conserve energy by We can conserve energy by turning off turning off

electronicselectronics when we are not using them. when we are not using them. computers, monitors, printers…computers, monitors, printers…

We can We can turn off lightsturn off lights when we are not when we are not using them and using them and reduce numberreduce number of of lights.lights. Change to florescent or natural lighting.Change to florescent or natural lighting.

We can We can changechange the temperaturethe temperature when when we are not in the building.we are not in the building.

Alternative Energy SolutionsAlternative Energy SolutionsShort TermShort Term

Cost Avoidance Program (CAP)Cost Avoidance Program (CAP) Small changes make for big savings.Small changes make for big savings.

Billing periods from March 2007 – June Billing periods from March 2007 – June 20072007

Cost without CAP = $75,280.80Cost without CAP = $75,280.80 Actual Cost with CAP = $60,813.07Actual Cost with CAP = $60,813.07 Cost Avoidance = $14,467.73 (19.22%)Cost Avoidance = $14,467.73 (19.22%) 3,897 MBTU3,897 MBTU Same as 160 cars removed or planting 331 Same as 160 cars removed or planting 331

acres of treesacres of trees

Community SharingCommunity Sharing

Team Web Team Web PagePage Team updatesTeam updates PresentationPresentation

Encouraged Encouraged peers and peers and teachers to teachers to join CAP.join CAP.

Mission StatementMission Statement

This lego team has learned a lot This lego team has learned a lot about energy since the start. Since about energy since the start. Since this project is all about using this project is all about using different types of energy, we different types of energy, we emphasized that point in our work. emphasized that point in our work. We also focused on how we, as We also focused on how we, as students, could make a difference.students, could make a difference.