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Delta Products Corporation DPR Solar Power System
By Chester Hsieh, Jan 2010
Delta Products Raleigh, NC (DPR)
Building: 65,000 square feet
Office : 55,000 square feetWarehouse: 10,000 square feet
DPR Solar Power System
Technology: Fixed PV Solar Panels with Solar Inverters to the GRIDOne HMI for DAQ and the other HMI for Hallway Display
Installation: On the Roof, the Warehouse and the Hallway of DPR
Components: 160 PV Solar Panels10 Delta PV2500 Solar Inverters (240VAC output)2 Delta HMIs with RS485 Solectria Driver
System Capacity: 25KW in total maximum production
System Started: December 2007 (two years now)
DPR Solar Power System
160 Solar PV Panels on the roof top of building
DPR Solar Power System
Ten Solectria PV2500 Solar Inverters (each 2500W)
DPR Solar Power System
Delta HMI for Data collecting, calculation and displayingfrom all 10 Solar Inverters through
Solectria Protocol (RS485)
DPR Solar Power System
DC ACGRID
(Ethernet)Hallway Display Warehouse Display
ModbusTCP
DPR Solar Power System
DPR Solar Power System
DPR Solar Power SystemSystem was installed in 2007 and started operating in December 2007.
HMIs are programmed to collect, calculate and displayCurrent operating power on each solar inverterEnergy generated, money saved and operating time on each inverter for
today, for this week, for this month, for this year and for lifetime.Energy generated, money saved and operating time one whole system for
today, for this week, for this month, for this year and for lifetime.Greenhouse Gas equivalency and Gallons of Gas equivalency.
The total generated energy since Dec 2007 is more than 70 MWH. It is equivalent to 50 Tons of Greenhouse Gas Emission. Or 9 passenger vehicles annuals emission or 5600 Gallons of Gas Consumed.
The money generated (through selling back to Utility company) since Dec 2007 is more than $9800. We sell energy back to utility company at $0.14 per KWH.
Solar Power System would be more efficient in energy production if installed at a location with most of the days in sunny weather.