Flexible Thin Film Building Integrated PV Solar...
Transcript of Flexible Thin Film Building Integrated PV Solar...
Topics
• Company OverviewCompany Overview
• UNI-SOLAR Technology
• Applications Overview
• Rooftop PV Design Process
• Sample Rooftop Projects Gallery• Carport/Landfill/Other SolutionsCarport/Landfill/Other Solutions
2
Uni‐Solar: Over 25 years of Innovation
2 MW MachinePrototype 5 MW Machine Auburn Hills
LaSalle, OntarioCell Interconnect, Module
Manufacturing and LaminatingMachine Facility (1&2) 60MW
Manufacturing and Laminating 30 MW
1981 1986 1991 1994 1996 1997 2003 2007 2011
NREL validation0.5 MW Machine Greenville 120 MW Building‐integrated(BIPV) product
Blue chip customers
RetailersRetailers ManufacturersManufacturers LogisticsLogistics
MiscellaneousMiscellaneous
Institutional CustomersInstitutional Customers
U.S. NAVY
4
Lightweight, flexible, amorphous silicon technology
• Thin Film Amorphous Silicon = Flexible Substrates• ~0 7 lbs/ft2 = low roof stress0.7 lbs/ft = low roof stress• Complete active cell < 1 micron thick• Standard industry warranty
Transparent Thickness of complete
Blue Cell
Green CellRed Cell
p
ConductiveOxide Film
Multi-junction cell
< 1 μmETFE
EVABack Reflector
GRID WIRES
CELL
STAINLESS
Flexible Stainless
STAINLESSSTEEL
EVA
POLYMERSteel Substrate
POLYMER
6
Superior Energy Production
• Unique triple‐junction thin‐film cells made from amorphous silicon and germaniumfrom amorphous silicon and germanium
• Cell absorbs red, green and blue light through three different cell layers
• UNI‐SOLAR PV‐laminates produce energy when the sun is low, through cloud cover and when installed at non‐ideal angles
Incident light
Transparent Conducive Film
Incident light
Triple Junction Cells
Back Reflector
Multi Junction = MORE ENERGY
Stainless Steel Substrate
7
Shadow Tolerant Technology
_+
Sources of soiling:
Traditional Glass Panels
Shadow /• Bird droppings• Water pooling• Concentrations of dust/dirt
Shadow / Debris causes module loss
SILICON CRYSTAL PV MODULE CELL CONNECTIONS
+
Shade/Soil any one cell = Output loss of 30% (loss of one cell string)Area of shade/soiling required to cover one cell = 4” x 4” (16 sq in)
+_
BYPASS DIODES ACROSS EACH CELL
UNI‐SOLAR PV MODULE CELL CONNECTIONS
Shade/Soil any one cell = Output loss of <4.5% (22‐cell Laminate)Area of shade/soiling required to cover one cell 9” x 14” (126 sq in)Area of shade/soiling required to cover one cell = 9” x 14” (126 sq in)
Bypass diode at each cell = Shadow tolerant88
Key Product Features – 144 Watt PVL
Versatile for curved building surfaces
Adds minimal structural load of 0.7 lbs/ft2
25 yr limited product warranty
Low reflectance for sensitive areas (airports)PVL 144 Watt Laminate
• 144 Watt
• 17 lbs, 0.7 lbs/ft2
Bypass diodes across every cell provide tolerance
High energy production per installed Watt
• 216 x 15.5 x 0.2 inches• Quick connect cables
Certifications
Outperforms in hot conditions
Greater daily energy production (earlier, later)
Roof Types and Uni‐Solar Applications
Metal Roofs•Material: Steel• Specification: 16” or wider standing seam or corrugated profile•Applications: PowerBond, PowerPlate
Membrane Roofs •Materials: TPO, EPDM•Specification: 60 mil or thicker, manufacturer must be approved by Uni‐Solar•Applications: PowerBond, PowerMembrane, PowerTilt
B ilt R fBuilt‐up Roofs•Material: SBS modified bitumen cap sheet• Specification: manufacturer must be approved by Uni‐Solar, requires secondary adhesive for PowerBond
Ballasted Roofs•Material: typically river rock or pavers over EPDM•Application: PowerTilt
© 2010 Energy Conversion Devices, Inc. COMPANY CONFIDENTIAL 11
Application: PowerTilt
PowerBondTM
Building Integrated & Building AppliedMembrane roofs, TPO & EPDM,
• Lightweight < 1 lb/ft2
• New or existing roof (survey required)
• HVHZ* wind design (>120MPH)g ( )
• No penetrations
• Can maintain roof OEM warranty
*High velocity hurricane zone
PowerMembraneTM
• Utilizes an intermediate membrane
f l fHunter Panels, FL
• Extends roof life – second waterproof layer
• Lowers installation time
Fresh and Easy, CA
• Provides easy removal
PowerTiltTM
Building Applied Photovoltaic “BAPV” Higher energy yield @ 15◦ TiltHigher energy yield @ 15 Tilt • Light weight < 2lb per sq ft (non‐ballast)• All roof types (existing & new)• Easily removable for roof maintenancey• Non‐penetrating design, ballast design• Maintains roof warranty• Up to 120 mph wind design Volkswagen, Germany
New ! PowerPlate Application
• For Corrugated Metal Roofs
• Requires additional materials
• Key is 16 inch wide metal pan
• Weight still < 2.1 lbs/ft2
• Contact USO for tech support
Array Layout – Code Requirements
• Fire CodeDriven by CAL FIRE– Driven by CAL FIRE
– 150’ x 150’ max sub‐array dimensions
– 4’ / 8’ aisles for access and ventilation
Currently no exclusions for BIPV thin film laminates– Currently no exclusions for BIPV thin‐film laminates
• The argument can be made that access requirements should not apply but the decision is in the hands of the local fire marshal
– Complete guidelines:– Complete guidelines: http://osfm.fire.ca.gov/pdf/reports/solarphotovoltaicguideline.pdf
• OSHA– 6’ setback from roof edge if fall restraint is not provided
© 2010 Energy Conversion Devices, Inc. COMPANY CONFIDENTIAL 18
Typical PV System Electrical Design
SOLAR ARRAY
DATAACQUISITION
SYSTEM
COMBINER BOX
ARRAY DCDISCONNECT
SWITCH
AC CIRCUITBREAKERS
UTILITYINTERFACE
SYSTEM(OPTIONAL)
19
INVERTER3-PHASE
ISOLATIONTRANSFORMER
BREAKERS
Portland General Electric / Prologis
PROJECT: Phase 1: BIPV System – PGE (1.1 MW) Phase 2: 2.4 MW BAPV Solution
TREC – Solar Share Waterview – August 2011
• 438 kW rooftop PowerTilt™ arrayPowerTilt™ array being installed at Daimler‐Mercedes Bus in South Mississauga, Ontario… the largest rooftop g pfacility in the GTA so far under the OPA FIT ProgramProgram
• 5.4 MW rooftop project atop ‘Toys Rproject atop Toys R Us’ ‐ New Jersey main logistics facility of 1.4M square feet…, making this the largestrooftop solar a‐Si pinstallation to date in North America
34
Membrane Roof Distribution Center‐ California
• Tesco USA in Riverside CA;Riverside, CA;
• World’s largest BIPV system;
• 2 MWp;• 2 MWp;• 2.6M kWh of
annual energy production;production;
• ~20% of depot’s annual power needspower needs.
General MotorsZaragoza, Spain
12 MW rooftop system ‐ the world’s largest rooftop solar installation
Uni‐Solar Proprietary and Confidential
UNI‐SOLAR: Product Overview
Commercial Residential Applications
P B d L dfill R i
Leading thin‐film solar products addressing all market
PowerBond
PowerMembrane PowerShingle
Landfill Reservoir
Rural Off-Grid
market segments…
PowerTilt PowerTile MilitaryTransportation
…with product and service capabilities
DownstreamUpstream
capabilities spanning the entire solar value chain
Solar CellManufacturing
Laminate/Finished Product
Project Development
SystemIntegration
driving wide‐scale acceptance of solar by integrating our solutions seamlessly and cost effectively into everyday applications
43