UDC ZERO ENERGY VISTOR CENTER

System Components

• Solar Array – Primary Power Generator – Array consists of 12 BP SX3190B Solar Modules

System Components

• BP SX3190B – 190 Watts, 24.4 Vdc – 25 year warranty

System Components

• Charge controller – Regulates charging current from the solar array to the battery – FlexMax 60 Outback Charge Controller

System Components

• FlexMax 60 Outback Charge Controllers – MPPT charge regulation can increase Array production by as much as 30% – Extensive electronic protection against reverse polarity, high temperature and over current

System Components

• Battery bank – Supplies a stable power source since the Solar Array current varies by time of day and weather condition – 8A8D SLA AGM Deka Battery

System Components

• 8A8D SLA AGM Batteries – 12V 265 AH of capacity at the 20Hr rate – High capacity, reliable, durable, and deep cycle capacity for heavy demand applications

System Components

• Inverter – Converts power stored in batteries from Direct Current (DC) to Alternating Current (AC) for use with standard equipment – Also allows excess power generated to be sold back to the utility grid – GVFX 3648 Outback Inverters

System Components

• GVFX3648 Outback Inverter – Simple modular design for true sine wave power – Grid interactive or standalone capability – 2 units stacked for 120/240 VAC

System Components

Wind Power • Usually not a primary power source • Complements solar power – Reduces depth of discharge during inclement weather – Fairly inexpensive depending on mounting option • AIR Breeze 48vdc wind turbine

System Components

• AIR Breeze 48vc – 35Kw monthly output in 12mph avg. wind – Built in charge regulation

System Design

System Design

• Off Grid/Utility Tie with Battery Back Up – Allows for Stand Alone operation – Also allows for buying and selling power to and from the Utility

Inspection

Inspection

• Solar Array – Check physical condition of solar modules • Unbroken glass • Relatively clean • Straight frames with no corrosion – Verify module frame grounding – Check mounting hardware for loose fasteners – Confirm that all module junction box covers are present – Electrical tests • Open circuit voltage for each module or module string • Short circuit current for each module or module string • Variations in excess of 10% should be investigated

Maintenance

Maintenance

• Scheduled Maintenance – Annual maintenance • Schedule in the fall so that the system will provide optimum performance in the winter months – Clean solar array if necessary • Water and mild soap are recommended • Do not use any abrasives – Perform complete inspection • See previous section • Make adjustments or repair as necessary