How Should Northwestern Go Green?

Team B

Team Members

Emily DerrickKristy MadelineMyles ShelbyBrandonDakotaJeff

Green Project

Research ways that Northwestern Lehigh School District can:

1. Cut energy costs

2. Become more eco-friendly

Topics

Cut our paper consumptionCut our energy consumptionAlternative fuel options for our busesAlternative energy options for our

school buildings

Cutting Paper and Saving Trees

Cutting Paper

District-wide use 1040 cases a year5000 sheets of paper per case$27.57 per case

Paper Cont.

Increase spending by $2350 next yearSpend $30,000 a yearUse over 5,400,000 sheets of paper a

year

More Paper

Suggesting 25% cutSaves 1.3 million sheets Saves $7,000 a year

How to Cut

Purchase TextbooksCan save 9000 sheets by buying

textbooks for two classesStop sending memosSend emails and have email replies

Green Paper

One tree produces 8,333 pieces of paper

Our district uses about 650 trees a year

By reducing paper use by 25% we would save 162 trees per year

Saving Money and Energy

Cutting Energy

Focused on electrical cuts 4 ways to cut electricity:

1. Shut off Laptops

2. Shut off Desktops

3. Turn off Lights

4. Turn off TVs

Laptops

Most laptops stay in sleep modeUse 2.4 watts per hour450 Student LaptopsSave around $466 by shutting them off

Desktops

5 computer labs30 computers per lab72 watts(idle mode)

per hour

Desktop Savings50% Left on Idle:

Save $2,000a yearSave 130 KWa year

100% Left on Idle:Save $4,000a yearSave 260 KWa year

Lights

Shut off lights 4 hrs. a day42 Lights per class40 Watts

an hour

Lights Savings

One Teacher:Save $120 a year6.7 KW a year

100 Teachers:Save $12,000 a year670 KW a year

Televisions

Shut off except:First thing in the morningOver Flexes

Show Morning show, slides, flex show100 TVs (approximately) 165 Watts an hour

Savings

During School Day:Save 91 KW per daySave $1,600 a year

20% of TVs left on after school:Save 79 KW per daySave $1,400 a year

Total Electrical Savings

Shut off laptops, desktops, lights, and TVs

Save $20,900 a year(high school)Save $83,000 a year (District)

Natural Gas and Transportation

Alternative Fuels

40 BusesAvg. Bus Age= 8.5 Years7 MPGDiesel Cost- $2.23 per gallon$5,000 Per Bus a year (fuel costs)

Natural Gas

Costs:Bus Costs $130,000

Savings: Save around $3,500 in Fuel CostsCosts $1.10 Per Equivalent of Diesel Gallon

Other Savings

Grants:50% Grant:

Save $65,000Pay $65,000

75% Grant:Save $97,500Pay $32,500

•Replace Oldest Buses:Save around $40,000 in repairs per year

Green Buses

Natural GasCuts Emissions 90%

Problems with DieselIncreases Asthma in ChildrenIncreases chance of cancer by 46%

Alternative Energy

Solar Energy

Stores 193 KW per Hour1.6 Million KW stored per year4.2 Million KW used in District (per year)Stores energy even when sun isn’t out

(cloudy or night)

Costs

$1.5 Million per panelPays for itself in 3 years$500,000 per Year for three YearsLasts for 40 years

Savings

Doesn’t actually cost $500,000Saves around $169,000 a year(energy

stored)Net cost around $331,000 per year

Grants

50% Grant:Save $165,000Pay $165,000

75% Grant:Save $248,000Pay $83,000

TOTAL POSSIBLE SAVINGS TOTAL POSSIBLE SAVINGS (District Wide)

Ways to saveSavings in One Year

Savings in 5 Years Savings in 10 Years

Turn off TV's $ 14,850.00 $ 74,250.00 $ 148,500.00

Reduce Paper by 25% $ 7,443.90 $ 37,219.50 $ 74,439.00

Turn off Laptops $ 1,866.24 $ 9,331.20 $ 18,662.40

Turn off Desktops $ 18,662.40 $ 93,312.00 $ 186,624.00

Turn off Lights 4 hrs a day $ 48,384.00 $ 241,920.00 $ 483,840.00

Fuel Savings $ 3,475.32 $ 17,376.60 $ 34,753.20

Solar Savings (After 3 Years) $ 169,068.00 $ 845,340.00 $ 1,690,680.00

TOTALS $ 263,749.86 $ 1,318,749.30 $ 2,637,498.60

Carbon Footprint

Approximate Numbers

Footprint Cont.

Shows need to be greenIf pay off our Carbon Footprint than it

would cost $50,00013 Million Lbs. of CO2 (per year)

6500 Tons of CO2 (per year)267,000 Trees486,000 Charcoal Barbecues

Conclusion

Places to saveHuge Payoff with no costHope to influence some changes in the

next couple of years