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| System-Level Specifications | ||
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| Solar Cell Characteristics | ||
| Cell Type | |
Triple junction solar cell |
| Cooling System | |
Passive convection cooling with aluminum heat-sink |
| Cell Size | |
30 mm2 |
| Temperature coefficient | |
-0.12% per °C |
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| System Frame Set | ||
| HCPV module power rating (CRC) | |
300 WpDC (1) |
| Cell-units per module | |
30 |
| Power per cell-unit | |
10 WpDC (1) |
| Efficiency | |
30% |
| Acceptance tracking angle | |
1.8° |
| Voc | |
91.1 V |
| Isc | |
4.1 A |
| Fuse rating | |
8.0 A |
| Total frame-set output power (CRC) | |
2.85 kWpDC |
| Number of HCPV modules per frame-set | |
10 |
| Frame-set footprint | |
7.1 ft x 32.8 ft / 2.165 m x 10.0 m |
| Frame-set row spacing | |
7.1 ft / 2.165 m |
| Weight | |
2,200 lbs / 998 kg 3.78 per ft2 / 18.44 kg per m2 |
| Source strings per frame-set | |
2 |
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| Source String DC output specifications | ||
| Voltage at MPP | |
410 VDC |
| Current at MPP | |
3.51 A |
| Fuse rating (per NEC §690) | |
6.0 A |
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| Tracker | ||
| Sealed with ultra-low evaporating lubricant | ||
| Tracking algorithm | |
Module level power maximization |
| Tracking Accuracy (incl. Backlash) | |
0.3° |
| Operable global latitude range | |
45°S – 45°N |
| Range of motion | ||
| Azimuth | |
160°E – 160°W from South |
| Elevation | |
0° – 120° from horizon |
| Elevation drive motor | |
Single stepper motor |
| Azimuth drive motor | |
Single stepper motor |
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| Installation & Environment | ||
| Ambient operating temperature | |
-20°C to 50°C |
| Power connectivity | |
Junction box at tracker frame |
| Inverter compatibility | |
Compatible with standard UL 1741 Listed grid tied DC/AC inverter |
| Installation zoning | ||
| Wind | |
Wind Exposure D - Max 90 mph |
| Seismic | |
Seismic Zone 4 (UBC/CBC) |
Certification |
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UL 8703 / IEC 62108    |
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Controls Software & Status Monitoring The Sunflower® control software provides closed-loop and open-loop tracking modes. Closed-loop is based on the individual module maximum solar power measurement with real-time feedback loop. Open-loop tracking is activated when a cloud shadows the Sunflower system. In this case, the feedback loop for tracking is based on continuous calibrated solar positioning data. As soon as this cloud shadowing disappears, the Sunflower modules will immediately produce power, maximizing system availability. |
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| Control | |
Stow-mode for wind safety at 50 mph (80.5 km/h) Dust mitigation mode to minimize soiling Clean mode for easy access cleaning |
| Database | |
SQLite; open source in public domain (http://www.sqlite.org) |
| Monitoring information | |
Module resolution status indication (DC) Module level tracking angle indication Frame-set level power measurement (DC) Total field power measurement (DC) Ambient air temperature Wind speed |
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PowerPort™ Carport
Standard 37.5 feet wide CPV carport sections for compact-car and standard-car parking stalls. Each carport section covers 4 to 5 parking stalls. No column intrusion in parking stalls. |
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| Power production per PowerPort™ section | |
Compact parking stalls: 13.0 MWh/year (2) Standard parking stalls: 16.2 MWh/year (2) |
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| (1) | Concentrator Reporting Conditions (+/-10%) - 900 W/m2 DNI, AM 1.5, 20°C Ambient Temperature, 4 m/s wind speed |
| (2) | Based on a DNI of 6.9 kWh/m2/day (comparable with the DNI value for the Palm Springs area which is provided by National Renewable Energy Laboratory (NREL) |
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| © Copyright 2003-2012 Energy Innovations, Inc. All Rights Reserved. All trademarks are the property of their respective owners. Reference herein does not constitute or imply affiliation with, endorsement, or recommendation of Energy Innovations, Inc. products by the respective trademark owners. |
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