Opportunities To Reduce Energy Use and Greenhouse Gas Emissions in Wastewater Treatment Plants

Opportunities To Reduce Energy Useand Greenhouse Gas Emissions in

Wastewater Treatment Plants

Jason TurgeonUS Environmental Protection Agency

US Conference of Mayors Water Council, Palm Beach, FLNovember 19,2008

Maximum Ozone Levels in 2007

Image: USAF Defense Meteorological Satellite Program

Hartford WPCF Energy Cost vs. Use

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Cost, millions

BTUs, 10 1̂1

Industry Average O&M BudgetsWastewater Plant

staffing46%

Chemicals 4%

maintenance3%

Other7%

solids12%

energy28%

New Regulations May

New Regulations May

Drive Energy Use

Drive Energy Use

Successful Energy Management

www.energystar.gov/benchmark

Portfolio Manager

What Does it Do?

Energy Use per Flow vs. Facility Size

0

5

10

15

20

25

30

35

40

0.0 10.0 20.0 30.0 40.0 50.0 60.0

Facility Size (Average MGD)

Sou

rce

Ene

rgy

Use

d to

Tre

at 1

Gal

lon

per

Day

(kB

tu/G

PD

)

Higher Energy use than average = Low Score

Average Energy Use = Average Score (50)

Lower Energy Use than Average = High Score

Normalization: lineposition adjusted

Energy Use and Cost vs Flow at similar sized plantsFY 2006 data

$45,233 $47,764

$88,176

$73,739

$115,053

$149,349

0.0

2.0

4.0

6.0

8.0

10.0

12.0

2.3 1.9 1.7 1.9 2.1 2

Average Daily Flow (MGD)

kBtu

/GP

D

$0

$20,000

$40,000

$60,000

$80,000

$100,000

$120,000

$140,000

$160,000

$/M

GD

Source Energy per Flow(kBtu/GPD)

Energy Cost per MGD ($/MGD)

Plan

Do

Do!

DO!!!

Check

Act

Photo CreditsSome photos used under Creative Commons licenses. Thanks to the following flickr users:•The End is Near: Delayed Gratification •Pile of Money: noahwesley•Fear of Commitment: Leslie Duss•Inspection: kquedquest •People Looking at Map: threelayercake•Jumping Swimmers: Hidden side •Plumber: NoMoTo•Roller Coaster: Sven Werk•Downward Trend: nogwater •Target: Matthew McVickar •Award: shannonmary•Fine Current Adjustment Dial: thespacesuitcatalyst•Apples and Oranges: rebel prince•Bad Apple: atypically_me•Basketball: sgoogle•Building with Cactus: ralphTQ•Building with Snow: Justin Russell•Calculator: Tube Design•Changed Priorities: redvers•Padlock: Zebble•Dial 1-100: Leo Reynolds•Swiss Army Knife: Kaptain Kobold•Green Jobs in Pittsfield: greenjobsnow.org•Firefighter: djarvinen•Two Tankers: SeraphimC

… …it’s not sustainableit’s not sustainable

If it’s not energy efficient …If it’s not energy efficient …

Contact Us

EPA Water/Energy Contacts:

Jason Turgeonturgeon.jason@epa.gov

617-918-1637Katy Hatcher

hatcher.caterina@epa.gov(202) 343-9676

Google: ENERGY STAR Wastewater

http://www.energystar.gov/index.cfm?c=government.wastewater_focus