slide 1 b o n n e v i l l e p o w e r a d m i n i s t r a t i o n energy efficient block heater...
TRANSCRIPT
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Slide 1
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Energy Efficient Block Heater
Brown Bag
BPA Energy Efficiency 4/15/14
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Slide 2
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Back-Up Generators?
Generators provide back-up power for continuity of operation and life-safety
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Slide 3
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Who has generators?• Schools and Universities• Government and public
buildings• Hospitals• Industrial facilities• Hospitality and lodging• Utilities
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Slide 4
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
What’s the Big Deal?
Generators are kept at 110F for quick starting. So most generators use more electricity than they
generate over their lifetime.
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Slide 5
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Where’s the Block Heater?
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Slide 6
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Generator Block Heater
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Slide 7
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Where’s the Block Heater?
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Slide 8
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Generator Block Heater
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Slide 9
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Where’s the Block Heater?
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Slide 10
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Generator Block Heater
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Slide 11
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Energy Efficient Block Heater
This new pumped, block heater, installed per manufacturer recommendations, will save energy, while meeting the block heating
requirements.
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Slide 12
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Energy Efficient Block Heater
This new pumped, block heater, installed per manufacturer recommendations, will save energy, while meeting the block heating
requirements.
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Slide 13
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
2012-2013 EE BH Pilot
1. Understand the technology a) Identify primary variables affecting
energy savings
b) Refine energy saving estimates
c) Ensure savings can be evaluated
2. Develop a BPA Qualified measure
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Slide 14
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Variables Affecting Energy Use & Savings
1. Heater size and number of heaters
2. Location of site (ambient temperature range)
3. Indoor or outdoor location
4. Piping configuration
5. For indoor locations –proximity to OSA damper
6. Enclosure type (insulated, operable dampers, etc.)
7. Engine block temperature setpoint
8. Oil heater
9. Percent of time that gen-set runs
10.“Health” of existing heater
11. Other
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Slide 15
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
EE BH Pilot Retrofits
• City of Cheney – 9 retrofits
• Kootenai Electric Coop – 15 retrofits
• Ravalli Electric Coop – 3 retrofits
• Flathead Electric Coop – 26 retrofits
• Missoula Electric Coop -5 retrofits
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Slide 16
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #1: 55% Energy Savings
• Large generator (1MW)
• Annual Energy Savings = 33,857kWh (55%)
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Slide 17
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #2: 29% Energy Savings
• Data Center (900kW)
• Annual Energy Savings = 7,613kWh (29%)
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Slide 18
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #3 : 36% Energy Savings• WW Plant (15kW)
• Annual Energy Savings = 1,589kWh (36%)
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Slide 19
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #4 a) 27% Energy Savings• Water Plant (20kW): heater replacement only
• Annual Energy Savings = 2,037kWh (27%)
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Slide 20
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #4 b) 50% Energy Savings• Water Plant (20kW): piping correction
• Total Energy Savings = 3,746kWh (50%)
• 23% savings attributed to piping correction
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Slide 21
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #5: -11% Energy Savings• Lift Station(80kW)
• Total Energy Savings = -609kWh (-11%)
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Slide 22
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #6: -4% Energy Savings• Lift Station(150kW)
• Total Energy Savings = -244kWh (-4%)
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Slide 23
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
EE BH Pilot Primary Variable Matrix1. Generator Size-Heater Size
2. Climate Zone
3. Location (indoor/outdoor)
4. Piping Configuration
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Slide 24
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
EE BH Location (indoor/outdoor)Sensitivity Analysis
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Slide 25
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Climate Zone Sensitivity Analysis for Exterior Location
Case Study #2 models projected to 3 other PNW cities
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Slide 26
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Case Study #3 models projected to 3 other PNW cities
Climate Zone Sensitivity Analysis for Interior Location
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Slide 27
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Piping Configuration Sensitivity Analysis
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Slide 28
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
TPS Heater Sensitivity Analysis
TPS Heater
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Slide 29
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Average Savings Showing the Effect of Piping Configuration
Heater Size
Good Piping
Bad Piping
1 kW 1,003 (143) 3,774
1.5 kW (341) 1,207 (626) 2,459
1.8/2/3 kW 1,827 (512)
3 kW 8,704 6/9 kW 11,374 33,858
Negative average savings for TPS heater baselines
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Slide 30
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Average Energy Use by Generator Size
Baseline Post
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Slide 31
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
October 1st BPA Qualified measure is based on the Pilot results!
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Slide 32
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Energy Efficient Block Heater (EE BH) BPA Qualified measure
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Slide 33
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
EE BH Retrofit BPA Qualified Measure
• Must replace a thermo-siphon, electric-resistance block heater
• The generator must be stationary
• Must be retrofit by a manufacturer-certified installer
• Installer provides manufacturer checklist with:
o invoice,
o pre- & post- spot measurements (V, A, kW) and
o pre- & post- pictures
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Slide 34
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Typical EE Block Heater Installed Costs
Heater Size (kW)
Typical Installed Cost
1 $1,200
1.5 $1,350
2.5 $1,500
3 $2,660
6 $2,770
9 $3,300
12 $3,950
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Slide 35
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Technician certification ensures correct piping configuration
• Heater return port should be high and towards the back of the engine
• Heater supply port should be low and towards the front of the engine
http://www.hotstart.com/home/products/hotflow/hotflow-certified-technicians/
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Slide 36
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Questions?
Rick [email protected]
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Slide 37
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Commercial Marketing Toolkit
• GBH materials are part of the new Commercial Marketing Toolkit
• Download in Adobe InDesign format at: http://www.bpa.gov/energy/n/Commercial/Marketing_Toolkit/
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Slide 38
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
EGBH Promotional Materials
• One page print promos• Bill Inserts• Trade Ally One Sheet
communication
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Slide 39
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
EGBH Promotional Materials
• Customize with:– Utility Logo– Custom Colors– Custom Text
• EE Marketing Team can assist -contact your EER