benchmarking wastewater treatment plant energy use with energy star’s portfolio manager tool jason...
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Benchmarking Wastewater Treatment Plant Energy Use with ENERGY STAR’s Portfolio
Manager Tool
Jason TurgeonUS Environmental Protection Agency
4/30/2009
Maximum Ozone Levels in 2007
Image: USAF Defense Meteorological Satellite Program
Industry Average O&M BudgetsWastewater Plant
staffing46%
Chemicals 4%
maintenance3%
Other7%
solids12%
energy28%
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
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?
Single Parameter ComparisonsWastewater Treatment Plants
AwwaRF Survey, 2004 Data, 300 observations
0
10
20
30
40
50
60
0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450
Annual Energy Cost ($/MG)
Nu
mb
er
of
Pla
nts
Wastewater Treatment PlantsAwwaRF Survey, 2004 Data, 279 observations
0
5
10
15
20
25
30
Annual Electricity Use (kWh/MG)
Nu
mb
er
of
Pla
nts
Courtesy WEF/Steve Carlson
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
$124 $131
$242
$202
$315
$409
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
$50
$100
$150
$200
$250
$300
$350
$400
$450
$/M
GD
Source Energy per Flow(kBtu/GPD)
Energy Cost per MG ($/MG)
Plan
ENERGY PERFORMANCE RATING
MAINTAIN
INVEST
10075501
ADJUST
Now What?
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 New England
Jason Turgeon
617-918-1637
Gina Snyder
617-918-1837
www.epa.gov/
region01/eco/energy