The Iowa Energy Center

Photovoltaic Demonstration

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PV System - Specifications

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Solar Panels: BP Solar SX170B
High-efficiency photovoltaic module using silicon nitrade multicrystalline silicon cells

Performance
Rated Power (Pmax): 170W
Nominal Voltage: 24V
Limited Warranty: 25 years

Configuration
SX170B Bronze frame with output cables and polarized Multicontact (MC) connectors

Electrical Characteristics SX170B
(These data represent the performance of typical SX170 products and are based on measurements made in accordance with ASTM E1036 corrected to SRC (STC.)
Maximum power (Pmax): 170W
(During the stabilization process that occurs during the first few months of deployment, module power may decrease by up to 3% from typical Pmax.)

Voltage at Pmax (Vmp): 35.4V
Current at Pmax (Imp): 4.8A
Short-circuit current (Isc): 5.0A
Open-circuit Voltage (Voc): 44.2V

Mechanical Characteristics
Length: 62.8 inches 
Width: 31.1 inches 
Depth: 1.97 inches
Weight: 33.1 pounds
Frame:  Anodized aluminum alloy type 6063T6 universal frame
Color: Bronze

SX170B I-V Curves

sunny_boy

Fronius IG 2500-LV (Stationary System)
Grid-tied photovoltaic inverter

Input Data
Maximum array input power: 3000 Wp
Peak power tracking voltage range: 150 - 400V

Output Data
Maximum AC output power: 2350 W
Nominal AC output voltage: 208 V
Operating AC voltage range: 183 – 227 V
Maximum output current: 8.35 A
Nominal output frequency: 60 Hz
Power Factor: 1

General Data
Maximum efficiency: 94.4%
Consumption in standby (night): <0.15 W
Consumption during operation: 7 W
Size: 18.5 x 16.33 x 8.71 in.
Weight: 26 pounds

SMA Sunny Boy 1800Usunny_boy
(Dual-Axis Tracking System)
Grid-tied photovoltaic inverter

Input Data
Maximum array input power: 2200 Wp
Peak power tracking voltage range: 156 - 350V

Output Data
Maximum AC output power:
1800 W
Nominal AC output voltage: 120 V
Operating AC voltage range: 106 - 132 V
Nominal output frequency: 60 Hz
Power Factor: 1

General Data
Maximum efficiency: 93.6%
Consumption in standby (night): 0.25 W
Consumption during operation: < 7W
Size: 17.1 x 11.6 x 8.4 in.
Weight: 59.4 pounds

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