Abstract
Cost of installation and ownership of a 9.66-kilowatt (kW) residential photovoltaic system is described, and the performance of this system over the past 3 years is shown. The system is located in Colorado at 40 degrees latitude and consists of arrays on two structures. Two arrays are installed on a detached garage, and these are each composed of 18 Kyocera 130-W modules strung in series facingsouth at an angle of 40 degrees above horizontal. Each 18-panel array feeds into a Xantrex/Schneider Electric 2.8-kW inverter. The other two arrays are installed on the house and face south at an angle of 30 degrees. One of these arrays has twelve 205-W Kyocera panels in series, and the other is made up of twelve 210-Kyocera panels. Each of these arrays feeds into Xantrex/Schneider Electric 3.3-kW inverters. Although there are various shading issues from trees and utility poles and lines, the overall output resembles that which is expected from PVWatts, a solar estimate program. The array cost, which was offset by rebates from the utility company and federal tax credits, was $1.17 per watt. Considering measured system performance, the estimated payback time of the system is 9 years.
Original language | American English |
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Number of pages | 6 |
State | Published - 2012 |
Event | 2012 IEEE Photovoltaic Specialists Conference - Austin, Texas Duration: 3 Jun 2012 → 8 Jun 2012 |
Conference
Conference | 2012 IEEE Photovoltaic Specialists Conference |
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City | Austin, Texas |
Period | 3/06/12 → 8/06/12 |
NREL Publication Number
- NREL/CP-5200-54114
Keywords
- photovoltaic cells
- PV
- silicon