District Energy Initiatives1/23/2012

www.swanseaschools.org

National Grid – New England Gas Whole Building Assessment (WBA) 1.) Assess energy performance 

• Building envelope• Electrical systems• HVAC systems• Lighting systems & equipment• Operation & Maintenance procedures

 2.) Identify opportunities for improvement 

• Low & No Cost Opportunities (1-3 years)• Capital replacement recommendations (5-10 years)

 3.) Action Plans recommended 

• Incentive programs

Low Cost – 2.2 years or less payback period

Education & awareness *Computer power management *Vending machine controlsAir sealing/weatherization (doors & windows)Freezers – National Resource Management (compressors,

fans, evaporation controls, temperature controls, defrost controls, walk-in-curtains) *

Demand controller HVAC – Gymnasium *Compressed air system (pneumatic) assessmentDestratification fans – Gymnasium & AuditoriumOperation & Maintenance practices *

* In-process or already completed

Low Cost – 1.4 years or less payback period

Education & awareness *Computer power management *Vending machine controlsFreezers – National Resource Management (compressors,

fans, evaporation controls, temperature controls, defrost controls, walk-in-curtains) *

Air sealing (classroom exhaust)Programmable thermostatsTimer on exhaust fansInsulate hot water pipes (Boiler Room)Operation & Maintenance practices * 

   

* In-process or already completed

Joseph Case High SchoolReplacement of existing electric motors to more efficient

motorsVariable speed drives (electric motors)Demand controlled HVAC systems – Gymnasium & Auditorium *Compressed air pneumatic system (temperature control) by

electronic system

Joseph Case Junior High SchoolBoiler replacementReplace hot water pump motorsReplace/refurbish kitchen make-up air unit (MAU)Electronic thermostat upgrade

 * In-process or already completed

Luther School – BoilerGardner School – Boiler (New Section); *Current Situation Hoyle School – Pneumatic system, air conditioning unitsAdministration Building – Light replacement/LED’s (80%

efficiency/50,000 hrs)Joseph Case Junior High School

Boiler control panel system Circulator pumps Window replacements *

Joseph Case High School Boiler control system* Gymnasium HVAC System* Boiler Damper System*

* In-process or already completed

Commercial Installation of Double Pane, Low E Glass, Project out, Aluminum Frame

84 Remaining windows as of 1-18-12

Phase School Year Window Replacement

I 2007-2008 41

II 2008-2009 33

III 2009-2010 25

IV 2010-2011 95

Total to Date 194

School Total Cost National Grid Incentive

Cost to Swansea

Annual Savings

Brown Elementary

$40,375.00 $19,818.00 $20,557.00 $ 8,125.00

Gardner Elementary

$36,318.00 $16,990.00 $19,328.00 $10,376.00

Hoyle Elementary

$65,527.00 $39,036.00 $26,491.00 $13,288.00

Luther Elementary

$45,935.00 $21,132.00 $24,803.00 $10,903.00

Joseph Case Junior High School

$111,851.00 $59,748.00 $52,103.00 $29,486.00

Joseph Case High School

$315,748.00 $64,650.00 $177,272.00 $45,152.00

Totals $615,754.00 $221,374.00 $320,554.00 $117,330.00

Reduction of Carbon footprint = 473 metric tons/year

Average payback period 2 years or less, except High School 3.9 years

Motion Sensors

Phillips advantage T8 (30,000 hrs.) free lamps 3 years

Electronic ballasts (warranty 5 years/installed)

LED’s High School Auditorium (50,000 hrs./80% + efficiency) w/exception of large stage lights

Review of Energy Efficiency Measures (WBA) Joseph Case Junior High School & Joseph Case High School

Assess other buildings in district for EEM’sIdentify District’s priorities, goals & resources

Determine schedule for implementation of EEM’s Implement no/low cost measures that do not require further study

using: National Grid Direct Install Program Internal facilities personnel Private vendors/procurement Determine objectives and level of interest to proceed with more

detailed research and engineering Some recommendations may require further investigation as noted in

report Contact National Grid & New England Gas to begin detail study for

specific measuresImplement selected measures after their scope of work, costs

and energy savings have been evaluated and determined.

Each school has one or more physical computer labs The Lab setting is used for class learning or individual

project/research creationInteractive whiteboards both mobile and mounted Digital cameras are available for project based useWireless access points are part of the mobile labs and/or

iPad carts. iPad carts with a minimum of 30 iPads are available at

each school in the districtMacbook carts are available at both secondary schools. iPod carts are available at each of the elementary

schoolsDocument cameras are available throughout the DistrictInteractive Projectors are used in classrooms with

whiteboards