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SOLARTRICITY FOR ALAMO HEIGHTS ISD, A DASH FOR SUCCESS. CPS SOLARTRICITY CPS WILL PAY 27 CENTS PER KILOWATT FOR 20 YEARS UP TO 1 MW PER CUSTOMER. CURRENTLY CPS CHARGES AHISD 7 CENTS A KILOWATT. DERATE FACTOR Expected loss from: DC wiring AC wiring Soiling Efficiency of inverter(s) - PowerPoint PPT Presentation
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SOLARTRICITY FOR ALAMO HEIGHTS ISD, A DASH FOR SUCCESS
CPS SOLARTRICITY
CPS WILL PAY 27 CENTS PER KILOWATT FOR 20 YEARS UP TO 1 MW PER CUSTOMER.
CURRENTLY CPS CHARGES AHISD 7 CENTS A KILOWATT.
DERATE FACTOR
Expected loss from:
DC wiringAC wiringSoilingEfficiency of inverter(s)Efficiency of solar panel (because a panel is a current source)
WEATHER FACTOR
Typical climateRain daysSun daysTemperature
$383,000 PER YEAR POTENTIAL EARNINGS
MONOCRYSTALINE
Slices from single crystalBetter production than polycrystals because crystals are more orderlyPotentially longer lifeGrown from a circle then truncated to max out panel coverage
POLYCRYSTALINE
Grown in a ribbon or blockFull panel coverage
THIN FILM
Different crystal technology such as CIGSTypically half the power level of crystals per square footMore wind resistant, multiple applications
Photo from articlebase.comGOAL IS FOR HIGHEST WATTAGE PER SQUARE FOOT
FULL GOODS SELF BALLASTED ARRAY, POLYCRYSTALINE
MONOCRYSTALINE
LADY BIRD JOHNSON MS, CIGS vapor deposition , photo courtesy of Gridpoint
photo from Solarpowerrocks.com
MULTIPLE SMALL INVERTERS
Maintain majority of system operation if inverter fails.Off the shelf replacementEasier installation due to smaller sizeMore connections requiredMore system complexitySelection based on electrical requirements
LARGE INVERTERS
Single or minimal points of connection.More capacity per inverter.Potential long lead time for parts/replacements.Inverter goes down, whole system goes down.Lower system complexity.
INTERCONNECTIONTouch this you die
ROOF REPLACEMENT at HIGH SCHOOL
Inverter level monitoringString level monitoring
CPS OFFICE FACILITY, GREEN MOUNTAIN ROAD 6AM
CPS OFFICE FACILITY, GREEN MOUNTAIN ROAD 6:20AM
CPS OFFICE FACILITY, GREEN MOUNTAIN ROAD 6:45AM
SOLAR MOB APPROXIMATELY 10 MINUTES BEFORE DASH
CPS OFFICE FACILITY, GREEN MOUNTAIN ROAD, 6:58AM
FRONT DOOR, CPS FACILITYGREEN SHOES
SIGNING APPLICATION AND GETTING QUEUE NUMBER, CPS FACILITY 7:20AM
Lowell Tacker, AIA, LEED APONeill Conrad Oppelt Architects, [email protected] FOR ALAMO HEIGHTS ISD, A DASH FOR SUCCESS
Special thanks to David McFalls, PEGridpoint
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