ET Spotlight - April 29, 2010 - ETCC Partners | The ... · PDF filesolution. 0 13 Resources 4...
Transcript of ET Spotlight - April 29, 2010 - ETCC Partners | The ... · PDF filesolution. 0 13 Resources 4...
April 29, 2010 2
Agenda9:00 - Welcome, Safety and
ETCC introduction9:10 - PG&E Presentation 9:35 - SMUD Presentation 9:55 - SCE Presentation
10:15 - SDG&E / SoCal Gas Presentation 10:45 - Q&A11:00 - Adjourn
April 29, 2010 3
Emerging Technologies Coordinating Council
About the ETCCA collaborative forum where the stakeholder can exchange information on opportunities and results from ET activities. Smoothes the path from the laboratory to the marketplace for cost-effective promising technologies that helps Californians save energy and money.
MembersCalifornia Energy
Commission
ETCC -
April 29, 2010 5
Accelerating Our Energy Efficient Future
ETCC Summit November 7 - 9, 2010Sacramento Hyatt and Convention CenterNational conference and workshop sponsored by the ETCC that explores new technologies and upcoming innovative ideasAttendees, Speakers & Exhibitors
April 29, 2010 8
PG&E Assessments
�•
Federspiel Controls Discharge Air Regulation Technique (DART) control system �–
Wayne Krill
�•
Heat Pump Water Heater �–
Sherry Hu
�•
Cascade C02
/NH3
Refrigeration System Efficiency Study �–
Ryan Matley
�•
High Efficiency Office Low Ambient/Task Lighting: Large and Small Office -
Thor Scordelis
Federspiel Controls Discharge Air Regulation Technique (DART)
Control System
ET Spotlight
Wayne Krill
April 29, 2010 10
Dual Air Regulation Technique (DART) Federspiel Controls Inc.
Enables commercial building EE and DR Wireless sensors, control software, web-
based, remote monitoring, continuous commissioning
1.
Convert constant air volume HVAC systems to variable air volume
2.
Server room temperature control based on localized cooling needs
3.
VAV buildings with pneumatic controls
Retrofit building at 1/4 to 1/10 of conventional VAV system retrofit cost, and save 30% of
building HVAC energy
April 29, 2010 1111
DART 2008-09 Field Assessment Stanford University, Jordan Hall Annex
2008-09 Emerging Technologies Field Assessment
�• 5 stories, 15,600 sf building
�• Office and classroom use
�• As-found CAV operation 24/7
�• Installed cost = $44,220: 8-hours required
�• 140,000 kWh savings = $16,800 (est. annual)
�• 8900 Therm savings = $9,900
�• PG&E incentive = $20,100
�• Simple payback = 0.5 year (typically < 2 yrs)
April 29, 2010 12
Application Information
�•
Applicable buildings�–
Greater than 15 years old, more than 10,000 sf
�–
With air handling units (not the best for heat pumps or multiple small rooftop units)
�–
Existing data centers greater than 2000 sf
�•
PG&E NEO (New Efficiency Options) incentive available�–
$0.13/kWh, $1.40/therm, and $140/kW
�•
Value to client�–
Less than 2-year ROI
�–
Quick install, nonintrusive�–
Proven, validated solution
April 29, 2010 13
DART Resources
�•
ET Final Report�–
www.etcc-ca.com/images/stories/dart1.pdf
�•
PG&E Fact Sheet�–
July 2009 CET-0709-0366
�•
Wayne Krill PG&E Sr. Product Manager
April 29, 2010 15
Heat Pump Water Heaters (HPWHs)
�•
Description �–
Typical refrigeration cycle. HPWHs extract heat from ambient air and transfer it to the water stored in the storage tank.
�•
The energy factor (EF) of a typical electrical resistance water heater is 0.86, compared to 2.0 to 2.5 EF for HPWHs.
Rheem HP50 HPWH
April 29, 2010 16
Typical refrigeration / heat pump cycle
Evaporator
Condenser
Expansion Valve
Heat Absorbed
(from ambient air)
Heat Rejected(to the water in
a HPWH tank)
Compressor
Electric Energy
Heat Pump Water Heaters (HPWHs)
April 29, 2010 17
�•
Sector/Segment: Residential, Small Commercial
�•
Vendors: Energy Star qualified products include Rheem, GE, A.O.Smith, Whirlpool, etc.
�•
Results: Rheem Energy Factor ~2.0
�•
Costs: app. $1600/unit, qualify for the federal 30% tax credit
�•
Energy Savings: 2024 kWh/yr, 0.445 kW, using the DEER baseline of 3579 kWh/yr in a single family home
�•
Simple Payback Period: 2 ~ 3 years
Heat Pump Water Heaters (HPWHs)
April 29, 2010 18
�•
Completed two assessment projects:
�–
Energy Performance Analysis for HPWHs. Investigated the
performance and interaction with residential HVAC
operations using hourly eQuest energy simulation.
�–
Laboratory Evaluation of HPWHs. Tested AirTap A7 & Rheem HP50.
�•
Currently, PG&E is conducting the assessment of GE HPWH units through laboratory and field testing.
�•
PG&E is also working on the workpaper. Considering HPWH as the second tier of existing electrical water heater program.
Heat Pump Water Heaters (HPWHs)
Report
http://www.etcc-ca.com/images/final-report_hpwh-lab- test_04-04-2010.pdf
Sherry HuPG&E -Sr. Product Manager
April 29, 2010 21
CO2 /NH3 Cascade Refrigeration System
�•
CO2
as a low-temp refrigerant (-20 oF to -58 oF) alternative to ammonia�–
More efficient than ammonia at low temps
�–
Provides health and safety benefits
�•
HFC and high GHG potential refrigerants will be phased out�–
CO2
provides a lower-energy alternative to other indirect fluid systems
�•
Gathered 6 months of operating data from facility in Fresno�–
Including measuring refrigerant flow rates
April 29, 2010 22
CO2 /NH3 Cascade Refrigeration System
�•
6% energy savings over state-of-the-art all ammonia system
�•
BUT 29% savings on the low side
�–
Refrigerated warehouses w/ low temp freezing great application
�–
New construction best opportunity
Report
http://www.etcc- ca.com/images/stories/pg26e20et20project20report20u
scs20fresno2030mar091.pdf
Ryan MatleyPG&E -Sr. Product Manager
April 29, 2010 25
Low Ambient/ Task Office Lighting�•
Hypothesis: Save energy and maintain or improve occupant satisfaction by lighting the workstation desk top with task lighting, and reducing the ambient lighting.
�•
PG&E ET Assessments:�–
High Efficiency Office Low Ambient/Task Lighting: Large Office (Report #0819- www.etcc-ca.com).
�•
Heschong Mahone Group, Inc. (HMG)+ California Department of General Services (DGS), Clanton and Associates, CB Richard Ellis, California Energy Commission's Public Interest Energy Research (PIER) Program and the California Lighting Technology Center (CLTC).
�–
High Efficiency Office Low Ambient/Task Lighting: Small Office (Report #0820- www.etcc-ca.com).
�•
HMG+ Cunningham Engineering Corporation, HMG, Clanton and Associates.
April 29, 2010 26
Low Ambient/ Task Office Lighting
�•
IESNA Recommended Practice for Office Lighting
�–
“Lighting for visual tasks can be provided solely by general lighting, or, more appropriately, may be supplemented with localized task lighting. In the latter case, the general lighting can be at a lower level.” RP-1-04, p.9
�–
“Illuminance selection is solely for the task area. Additional lighting is always within the office environment for facial modeling, room surface luminances, and space appearance.” RP-1-04, p.9
April 29, 2010 27
Large Office - “Ziggurat Building” (California Department of General Services)
�•
Reduced ambient light level from 37fc to 17fc, increased task lighting.
�•
Lighting Power Density reduced from 1.5 to 0.66 = 56% savings.
�•
Occupant responses: As attractive, more comfortable, higher overall visual quality.
�•
9.1 yr. simple payback
April 29, 2010 28
Small Office: Encon Building
�•
Reduced ambient light levels from 33fc to 19fc, increased task light levels.
�•
Lighting Power Density (lighting w/sq.ft) reduced from 1.34 (existing) to 0.66: 51% savings.
�•
Title 24 remodel would have capped LPD at 1.21. 0.66 LPD represents 45% savings.
�•
Occupant responses: More attractive, more comfortable, higher overall visual quality.
�•
5.8 yr. simple payback.
Reports
http://www.etcc-ca.com/images/pge0819.pdf
http://www.etcc-ca.com/images/pge0820.pdf
Thor ScordelisPG&E -Sr. Product Manager
31
SMUD’s ET Assessments:
1. LED lighting for gas station canopies
2. AquaChill® water-cooled air conditioners
3. Deep energy residential retrofit
32
Gas Station Canopies & Parking Lightspulse-start metal halide
Base Case Lighting System�•
Canopy: 24 -320 Watt, pulse-start metal halide (346 Watts / fixture)
�•
Parking lot: 8 -1,000 Watt, pulse-start metal halide fmounted on 20 ft. poles (1,071 Watts / fixture)
�•
Car wash: 4 -
100 Watt, pulse-start, metal halide fixtures (119 Watts / fixture)
New Lighting System�•
Canopy: 24 -
118.5 Watt Beta LED fixtures (60 LEDs @ 525 mA)
�•
Parking lot: 8 -
138 Watt Beta LED fixtures mounted on 20 ft. poles (120 LEDs @ 350 mA)
�•
Car wash: 4 -
104 Watt wall-mounted, Beta LED fixtures (80 LEDs @ 350 mA)
36
Excellent initial illumination levels + 21%Less glareReduced light pollutionSignificant energy savings Average 55%
Canopy lights (65.7%): 22,932 kWh per year
Parking lot lights (87%): 9,856 kWh per yearCar wash lights (12%): 525 kWh per
yearTotal annual savings: 53,313 kWh per year
Estimated annual utility bill savings: $5,532Cost of project: $36,746SMUD research grant: $10,000Simple payback: $26,746 ÷ $5,532 = 4.8 years
Demonstration Project Results
The new LED lighting system was installed by
Fillner Construction Inc.
37
The AquaChill®
Basic Information�•
Evaporative condenser (water cooled)
�• Cooling capacity 3-5 tons
�• Mfg: Beutler, in Sacramento
38
AquaChill’s Approach to Overcoming Scale
�•
Condenser coil design �–scale dislodged by the expansion, contraction and vibration of normal operation
�•
Wide spray nozzles - prevent clogging
39
SMUD’s Demonstration Project
Summer of 2008�•
30 prototype AquaChill units installed
�•
Monitored ADM�•
Significant reliability & scaling problems
Summer of 2009�•
Beutler redesigned & replaced all 30
�•
26 units monitored (ADM).�•
No known reliability problems for 2
nd
Generation units
40
AquaChill’s Peak Demand Savings .92kW 4:00 to 7:00 PM
Average Delta Between Two Groups
Simulations: peak demand savings of 1.09 kW for a 4-ton unit.
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0 6 12 18 24
Dem
and(kW,calculatedas
kWhEn
ergy
Usage
per
hour)
Hour of Day
Average JulyWeekdayLoadShape
RSG
AquaChill
�•AquaChill sites = dashed blue �•SMUD Residences = solid red
41
Results for 2nd
Generation Units
�•
No reliability nor scaling
problems.�•
Energy Savings of 29%
�•
Peak Demand savings of 1.09 kW�•
1.3 gallons of water per ton-hour.
�•
Cost $650 per ton more than basic California Title 24 compliant air cooled systems.
�•
Average EER 13.4 with outside temperatures up to 106°F.
�•
Technology evaluation report completed and posted to
Customer Advanced Technologies (CAT) Program web site:
SMUD.org/Education & Safety
Dave Bisbee [email protected]
42
GreenBuilt Construction
8901 Quail Hill Way, Fair OaksMarket Rate “Flip”
62% Source Energy Savings
$42k
182 to 78 HERS score
R-40 Attic Insulation with Radiant Barrier
High Efficiency Windows
Air Sealing, 4.1 ACH50
SEER 16/ HSPF 0.75 Heat Pump w/ tight, tested R-6 ducts
Heat Pump Water Heater w/ Solar Pre- Heat
Energy Star CFL fixtures and Appliances
Solar Electric PV
43
NREL Test House for Building America �•
Air Sealing, 4.1 ACH50
�•
SEER 16/ HSPF 0.75 Heat Pump w/ tight, tested R-6 ducts
�•
Heat Pump Water Heater w/
�•
Solar Pre-Heat�•
Energy Star CFL fixtures and Appliances
�•
Solar Electric PV
45
ET Summit 2010 Accelerating Our Energy Efficient Future
Nov. 7-9
Sacramento Convention Center & Hyatt Regency
Attendees, Speakers & Exhibitors
Contact :
Bruce Baccei ([email protected])Chris Scruton ([email protected])Randy Wong ([email protected])Paul Delaney ([email protected])Jerine Ahmed ([email protected])
46
SMUD Emerging Technologies
Questions
Bruce BacceiSupervisor - Energy Efficiency Emerging Technologies
Design & Engineering Services
Emerging Technologies Assessments
April 29, 2010
Paul DelaneyET Assessment Manager
April 29, 2010 48
Design & Engineering Services
�•
LED Lighting for Low Temperature Reach-in Refrigerated Display Cases
�•
Demand Control Ventilation
�•
Air Source Heat Pump for Coolant pre-heating of Backup Emergency Diesel Generator
April 29, 2010 49
Design & Engineering Services
LED Lighting for Low Temperature Reach- in Refrigerated Display Cases
April 29, 2010 50
Design & Engineering Services
Description
�•
This project investigated the demand reduction and energy savings associated with using new lighting technologies in low-temperature (LT) reach-in refrigerated display cases.
�•
Existing T-8 fluorescent lamps with electronic ballasts in low temperature reach-in refrigerated display cases were replaced with a light emitting diode (LED) system and an occupancy controlled dimming system.
�•
Market is medium and large sized grocery stores
April 29, 2010 51
Design & Engineering Services
Background�•
~19,350 medium and large sized grocery stores in the state of California.
�•
~7,850 medium and large sized grocery stores in SCE territory.
�•
~987,000 LT glass doors in California and ~400,000 in SCE territory.
�•
T-8 fixtures/ballasts consumes roughly 67 watts per door.
�•
Reduced lamp life in cold environments.
�•
Not optimally directed on the case products.
�•
Significant heat inside cases.
April 29, 2010 52
Design & Engineering Services
LED Replacement Technology
�•
5 foot LED �“sticks�”
vertically mounted between doors
�•
Determine energy and demand savings
�–
Direct lighting energy and demand savings
�–
Combined cooling and lighting load energy savings
�–
Savings due to traffic sensor
�•
Observe light distribution on case products
April 29, 2010 53
Design & Engineering Services
Results
�•
Direct lighting energy and demand savings �–
67%
�•
Combined Cooling load energy savings ~ 30%
�•
Lighting energy savings due to traffic sensor ~ 5%
�•
Even light distribution on product
April 29, 2010 54
Design & Engineering Services
Results-cont�’d
46,61539,953 39,953
18,731
6,170 5,215
-
10,000
20,000
30,000
40,000
50,000
60,000
70,000
T8 LED Occ
Ann
ual E
nerg
y (k
Wh)
Lighting EnergyRefrigeration Energy
65,346
46,123 45,168
Report: http://www.etcc-ca.com/images/stories/ et_06.06_-_led_display_case_lighting_final.pdf
April 29, 2010 55
Design & Engineering Services
Demand Control VentilationDescription
�•
Melink
Intellihood
Field Test�–
Depending on the cooking �“load�”, the exhaust system and make-up air are adjusted using a variable speed controller to maintain necessary minimum exhaust air requirements
�•
Temperature Sensor -Varies motor speed dependent on temperature
�•
Optical Sensor -
Smoke detection motor goes to 100%
Smoke Detection
Heat Detection
April 29, 2010 56
Design & Engineering Services
56
Testing of the DCV was performed at the following commercial kitchens:
�–
Westin Mission Hills�–
Desert Springs Marriott
�–
El Pollo
Loco El Monte�–
Panda Express
�–
Farmer Boy�’s
April 29, 2010 57
Design & Engineering Services
Westin Mission Hills
�•
A Hotel Located in Rancho Mirage CA�•
Serves 472 guest rooms
�•
Single story kitchen�•
3 Hoods�–
Two 30ft hoods�–
One 18ft hood�•
18 hour operational kitchen
�•
24 hour Kitchen Hood operation�•
Melink
system was installed on:
�–
Combined 14 HP exhaust motors�–
Combined 8 Hp Makeup air motors
April 29, 2010 58
Design & Engineering Services
58
Results�•
59,042.40 kWH
savings per year per year
from only fan motor power�•
55.66% savings
�•
$8,856.36 annual savings @ $0.15/kWh
April 29, 2010 59
Design & Engineering Services
59
Desert Springs Marriott
�•
A Hotel located in Palm Desert California�•
Serves 844 guest rooms
�•
9 Story hotel�–
Kitchen located in the ground floor
�•
24 hour operational kitchen and hoods�•
6 Hoods�–
Two 28 ft hoods�–
Three 13ft hoods�–
One 16ft hood
�•
Melink
system was installed on:�–
combined 21 HP exhaust motors
April 29, 2010 60
Design & Engineering Services
60
Results�•
111,076.80 kWH
savings per year from
only fan motor power�•
66.95% savings
�•
$16,661.52 annual savings @ $0.15/kWh
April 29, 2010 61
Design & Engineering Services
61
El Pollo
Loco
�•
Quick Service chicken restaurant located in El Monte
�•
Store hours from 10 a.m. to 10:00 p.m.�•
About 15.5 hours kitchen hood operation
�•
Two 12ft hoods�•
Melink
system was installed on:
�–
Combined 3 HP exhaust motors�–
Combined 3 HP makeup air motors
April 29, 2010 62
Design & Engineering Services
62
Results�•
7,851.27 kWH
savings per year from only
fan motor power�•
33% savings
�•
$1,177.69 annual savings of $0.15/kWh
April 29, 2010 63
Design & Engineering Services
63
Panda Express
�•
Quick Service chinese
food restaurant located in Quartz Hill
�•
Store hours from 10 a.m. to 9:00 p.m.�•
About 13.28 hours kitchen hood operation
�•
Two 12ft Hoods�•
Melink
system was installed on:
�–
Combined 4 HP exhaust motors�–
Combined 1 HP makeup air motors
April 29, 2010 64
Design & Engineering Services
64
Results�•
18,669.12 kWH
savings per year from only
fan motor power�•
76.99% savings
�•
$2,800.37 annual savings @ $0.15/kWh
April 29, 2010 65
Design & Engineering Services
65
Farmer Boys
�•
Fast food restaurant located in Irwindale�•
Store hours from 6 a.m. to 10:00 p.m.
�•
About 16 hours kitchen hood operation�•
Three 12ft Hoods
�•
Melink
system was installed on:�–
Combined 3 HP exhaust motors
April 29, 2010 66
Design & Engineering Services
66
Results�•
8,105.55 kWH
savings per year
�•
49.22% savings�•
$ 1,215.83 annual savings@ $0.15/kWh
Report: http://www.etcc-ca.com/images/stories/ et_07_10_dcv_com_kitch_hoods_final_report.pdf
April 29, 2010 67
Design & Engineering Services
Air Source Heat Pump for Coolant pre-heating of Backup Emergency Diesel Generator
April 29, 2010 68
Design & Engineering Services
Description
�•
The requirement to have the diesel engine generator pre- heated for rapid starts, the engine coolant must be pre-
heated to the operating temperature 24/7 to insure reliable engine starts.
�•
Resistance (Block) heater has a COP of 1.�•
ASHP has a COP of ~ 4.2
�•
ASHP is wired in series with the existing block heaters �•
Heat pump is the primary heater source unless temperature drifts down to block heater set-point (~400
F).
April 29, 2010 69
Design & Engineering Services
Commercial, Industrial and Institutional, examples of these include:
�–
Prison�’s�–
City and county facilities
�–
Healthcare industry�–
Colleges/universities
�–
Federal, state, and local agency facilities�–
Data centers
Market Segments
April 29, 2010 70
Design & Engineering Services
Comparison of Power Consumption as a function of Daily Average Temperature
Emergency Backup Generator Engine Heating Energy Usage
015
30
45607590
105120
40 50 60 70 80 90
D aily A verag e T emperat ure
kWh
per d
ay
Immersion Heater Air Source Heat Pump
April 29, 2010 71
Design & Engineering Services
�•
30,300 kWH
(CTZ 8) annual energy savings�•
$4,545 savings @ $0.15/kWh
�•
ASHP installed cost = $10,000�•
Simple payback = 2.2 years
Results (1.75 MW Diesel Generator)
Design & Engineering Services
SCE Emerging Technologies
Questions
Paul DelaneyET Assessment [email protected]
(626) 812-7321
© 2002 San Diego Gas and Electric Co. and Southern California Gas Company. All copyright and trademark rights reserved.
ET Spotlight San Diego Gas & Electric
Jerine Ahmed
April 29, 2010
April 27, 2009 74
Today’s Topics
Advanced Street Lighting Technologies Assessment LED Troffer & Downlight Interior Office General Illumination Muti-vendor Home Area Network (HAN) Assessment (Ongoing)
Induction
LED
HPS
April 27, 2009 75
Advanced Street Lighting Technologies
The technologyBroad spectrum light sources, specifically induction and LED, provide lighting that closely emulates natural light.Potential replacement for HPS, LPS and MH street lights
Induction
LED
HPS
LED
April 27, 2009 76
Advanced Street Lighting Technologies
Virginia Tech Transportation Institute Vehicle equipped with RLMMS -
Roadway Lighting Mobile Measurement System
The Location6th StreetRoadway & IntersectionsHPS Buffer ZonesLED 3 areasInduction 3 areasHPS 2 areas
EvaluationQuantitative light and electrical power measurements, Subjective lighting surveyObject visibility detection
April 27, 2009 79
Advanced Street Lighting Technologies
Target Market Segment: MunicipalitiesInduction Manufacturers:
Kim (Philips QL), US Energy (Sylvania Icetron), PowerLux (Philips QL)
LED ManufacturersKim, Leotek, Fiti
Costs (based upon manufacturer and meeting lower CCT requirement)Induction: $300 - $600LED: $900 - $1200
Energy savings of up to 30% - 40% Simple Payback (based upon 250 watt HPS replacement)
Induction 7 years LED 17 years
Viable alternative for street lighting applications
April 27, 2009 80
Advanced Street Lighting Technologies
SummaryBroad spectrum light sources provide equivalent or better visualperformance than the existing HPS luminaires. These alternative light sources provide lower glare and equivalent performance at a lower roadway illuminance level.This suggests that the broad spectrum light sources do provide additional information in the visual scene and a higher potential performance
Report: http://www.etcc-ca.com/images/summary_report_final-5.pdf
April 27, 2009 81
LED Troffer and Downlight Interior Office General Illumination
The technologyLED light source in 2 X 2 troffer LED 6�” downlight Facility designed to provide equivalent lighting of fluorescent meeting the requirements of Title 24.Viable alternative for interior office general lighting applications
The LocationOffice Building Area 1566 Sf 2142 Annual Operating Hours
April 27, 2009 82
LED Troffer and Downlight Interior Office General Illumination
Customer BenefitsCreates a sense of better visionPerceived �“brilliance�” or brightnessEquivalent or better visual performance
Lower glareReduced eye strainMore uniform lightDirect light to the task
April 27, 2009 83
LED Troffer and Downlight Interior Office General Illumination
CREE LR6 LED Downlight Performance DataManufacturer Measured CALiPER 07-47
Power in watts 10.5 11.8 10.8CCT in kelvin 3500 3377 3402CRI 90 not measured 90.7Power Factor >0.90 0.98 0.97
CREE LR24 LED Troffer Performance DataManufacturer Measured CALiPER 09-41-01
Power in watts 44 46.7 41CCT in kelvin 3500 3377 3250CRI 90 not measured 89Power Factor 0.9 0.98 0.97
Project EnergySavingsAchievedSource Energy (kWh) Savings (kWh) Savings Energy Cost Cost Savings
Flourescent 2851 $599LED 2401 450 16% $504 $94
Project Simple Payback
Light Total Incremental Energy Cost SimpleSource Installed Cost Cost Savings Payback
Fluorescent $6,500LED $17,471 $10,971 $94 116
April 27, 2009 84
LED Troffer and Downlight Interior Office General Illumination
Target Market Segment: CommercialManufacturer: CreeProduct: LR24 LED Troffer and LR6 DownlightCosts (installed)
2 X 2 Troffer - $6506�” Downlight - $150
Energy savings of up to 15% over 2008 T-24 standardsSimple Payback �– Very Long
April 27, 2009 85
Multi-vendor Home Area Network (HAN) Assessment
Demonstrate & Evaluate:
Technical capabilitiesInteroperabilityCustomer ExperienceHAN communicationsDR Potential
April 27, 2009 86
Multi-vendor Home Area Network (HAN) Assessment
Devices:ControllerRemote controlKeypadWireless ThermostatAppliance modulesLoad control switchesRouter
April 27, 2009 87
Sector/Segment - ResidentialVendors �– Control 4, Card AccessTwelve Single Family HomesInstallation - OngoingCosts - TBDEnergy Savings - TBDSimple Payback Period - TBD
Multi-vendor Home Area Network (HAN) Assessment
© 2002 San Diego Gas and Electric Co. and Southern California Gas Company. All copyright and trademark rights reserved.
ET Spotlight Southern California Gas Company
Sharareh Moaddeli
April 29, 2010
April 27, 2009 89
Today’s Topics
Liquid Pool Cover Whole House Performance Pilot M2G Boiler Controls (Ongoing)
Induction
LED
HPS
April 27, 2009 90
Liquid Pool Cover
Forms thin uniform layer over pool water surface Slows water evaporation and heat lossApplied nightly by an automatic pump, or through a floating patented dispenserMost effective when pool is not at useNot applicable for infinity pools or pools with gutter overflows
April 27, 2009 91
Results: Evaluated at health club in coastal climate and HOA in desert climateSavings: On average 10% Therm savings in California climates
Water SavingsCosts: $84/gal; 1oz/400 ft2 daily; upfront cost $400 for installing automatic dispenserSimple payback: <2 yearsSector/Segment: Hotels, Schools, Health Clubs, Public Pools, MFR Vendor: Flexible Solutions
Reports: http://www.etcc-ca.com/images/stories/ heatsavr_expr_workout_club_report_r2_4-12-10.pdf
Liquid Pool Cover
April 27, 2009 92
Whole House Performance Pilot
Objective: Collect data on existing older homes to help with design of whole house program
Whole house performance (HPwES) diagnostic testing on 25 homesClimate zones varied from costal, inland to desertCounties: Five southern California counties (LA, OC, San
Bernardino, Riverside, and Ventura)Vintage: 1946 �– 1978Square footage: 1,200 �– 3,10018 1-story, 6 2-story, 1 3-story
April 27, 2009 93
Whole House Performance Pilot
Project Activities:Basic audit
Homeowner interview House walk-throughVisual inspection of furnace, air conditioner, hot water heater, duct systemVisual inspection of attic, crawl space, walls, windows, insulation
Reviewed customer utility billsAssessment of health, safety, and indoor air quality issues in the home
Carbon monoxide measurementsCombustion appliance efficiency and safety tests �– spillage, back draftingGas leakage tests
April 27, 2009 94
Whole House Performance Pilot
Project Activities (cont):
Building Diagnostic TestingWorst case depressurization testsBlower door test to measure air leakage from the house enclosureDuct blaster test to quantify duct leakageFlow hood measurements of room air flow through supply and return registersInfrared imaging of the house thermal patterns (hot and cold areas in the house)
Computer simulation modeling with Treat softwareCustomer report with recommendationsPost survey (conducted by SCG)
Report : http://www.etcc-ca.com/images/stories/pdf/ Whole%20House%20Performance%20(WHP)%20Pilot%20Proje ct,%20FINAL%20REPORT,%20March%202010-1.pdf
April 27, 2009 95
Whole House Performance Pilot
• Top Ten Energy Efficiency Measures Recommended for 25- Homes Test Sample
No. Energy Efficiency Measure No. of
Homes Average Annual
Gas Savings
Average Annual
Electricity Savings
[Therms] [KWH] 1 Install additional attic insulation 24 23.4 218 2 Replace additional incandescent lighting with
CFL's 22 -6.1 515
3 Reduce total air infiltration 21 32.0 -35 4 Install high efficiency water heater/ Replace
water heater 17 45.6 41
5 Install hydronic heating system 16 52.3 47 6 Install high efficiency air conditioning
system (incl. ducts) 16 0 1090
7 Install dual pane windows / Replace single pane windows 11 27.8 351
7A Reduce office/computer related equipment hours 11 -4.1 677
8 Replace kitchen refrigerator with Energy Star 10 -6.5 840 9 Adjust thermostat setback temperatures 9 76.9 1265 9A Insulate walls (or wall section) 9 43.3 62 10 Reduce pool pump operating hours 8 0 803 10A Replace clothes washer with Energy Star
model 8 22.5 68
April 27, 2009 96
Whole House Performance Pilot
PAYBACK PERIOD [YEARS]
0
10
20
30
40
50
60
70
80
90
100
0 500 1000 1500 2000 2500 3000 3500
TEST HOME - CONDITIONED AREA [SF]
PAYB
AC
K [Y
EAR
S]
PAYBACK [YEARS]
20-YEAR PAYBACK
30-YEAR PAYBACK
April 27, 2009 97
M2G Control System
Control System for space heating boilersMicroprocessor based technology Controls boiler cycling by matching boiler operation with true building demandMonitors building thermodynamics through measurement and analysis of boiler water temperatures.
April 27, 2009 98
Sector/Segment: Commercial - Hotels, Schools, Office BuildingsVendor: Greffen SystemsCosts: $9,000 installedEstimated savings: 10-20%Planned Evaluation: Hotel, office building, elementary school, and community college classroom building
M2G Control System
April 27, 2009 99
Jerine AhmedET Project [email protected]
Sharareh MoaddeliET Project [email protected]
Contact Information