Data Acquisition System. DAS") and kWh Meters 73. The Data Acquisition System shall be the Sunlight General Capital variant of the Deck Monitoring system, and shall be procured by Owner for installation by Contractor. 74. For Sites containing multiple discrete SGF’s, multiple Data Acquisition Systems may be required in accordance with the Owner‐Furnished Engineering designs. Further, for sites with arrays at multiple tilts and/or azimuths, a separate weather station shall be provided for each tilt or azimuth in accordance with the Owner‐Furnished Engineering designs. 75. Each DAS shall include a datalogger ("All‐in‐One" box), kWh meter (billing meter), and environmental monitoring instrumentation as follows: i. A plane‐of‐array pyranometer. ii. A horizontal pyranometer iii. An ambient temperature sensor iv. A back‐of‐module temperature sensor Pyranometers shall be manufactured by Hukseflux, and shall be the LP02 device. 76. Each DAS shall include Modbus communications with its associated inverters and kWh meters. 77. Each DAS shall include a minimum 72 hour backup battery, and a minimum 30 day first in‐first out (FIFO) removable data storage device. 78. The datalogger shall be mounted in a location where it is protected from direct sunlight. 79. Contractor is responsible for the supply and installation of each DAS, and for the coordination, supply and installation of internet connection hardware and software through the Local Unit local area network and internet access firewall. Internet access shall be by means of hard‐wired communications infrastructure. For TCP/IP data communication runs whose length exceeds the 300ft distance limit recommended for CAT 5/CAT 6 copper‐based wiring, optical fiber communications wiring shall be installed which shall be run within innerduct and in conduit throughout. 80. RS‐485 cabling shall be selected based upon the service. This shall include, as specifically applicable: 120 Ohm characteristic impedance. UL Listed Specifically listed for RS‐485 communications Wet rated for all RS‐485 runs that are outdoor and exposed, or for all runs that are located underground. There shall be a separate, insulated, ground reference conductor, which shall be terminated at both ends of each RS‐485 run. There shall be a separate shield and drain conductor, which shall be terminated at one location only for the entire RS‐485 system. High‐temperature (75 degC minimum) rated for all runs that are located on rooftops. Insulation rating shall be appropriate for entry into energized equipment enclosures (typically 600V). If an appropriate insulation rating is not available, then it is acceptable to install an appropriately‐rated and UL Listed insulating sleeve on cable sections entering energized equipment enclosures. Note that Belden does not manufacture a cable that is consistent with these requirements. Teldor 9392LC2 is an example of an approved and appropriate RS‐485 cable. Contractor may use multiple different RS‐485 cables based upon the service needs however. 81. 120V power to each DAS datalogger shall be taken from a single, dedicated breaker within the Load Center that is located closest to the DAS datalogger, or from a dedicated and new circuit breaker that is installed within an existing and nearby load distribution panel located within a facility 82. Where applicable, 120V power to each kWh meter shall be taken from a dedicated 3A breaker or isolatable fuse within the Load Center that is located closest to that kWh meter. 83. kWh meters that are used for performance monitoring and/or for billing purposes shall be capable of field‐accuracy verification and shall be socket‐mounted. The Schneider Ion 8650 kWh meter is the approved device, with a 9s Socket base. 84. Current Transformers (CTs) shall be revenue grade, shall have an accuracy of at least 0.3%, and shall be sized such that the CT range is no greater than 150% of the maximum inverter current output. Split‐ core CTs are generally not suitable. 85. Contractor shall install and commission a floor‐standing, or wall‐mounted, monitoring system public display (non-touch screen) at each SGF Site, to be installed at a location to be determined at a later date. Installation shall include all power and local area network communications wiring and infrastructure, and commissioning shall include all work necessary to accomplish permanent communication with the external internet. The kiosk shall incorporate the following features: a. A one‐device solution is required. The processor and peripherals (monitor, power supply, etc.) must be a part of a single enclosed device. It is not acceptable to have a kiosk system where the monitor is separate from a remote PC b. The kiosk will be connected to the internet via the site’s wired network. Therefore the operating system shall be network‐compatible. c. Remote login software shall be provided, allowing for remote kiosk viewing, maintenance and upgrade. d. The monitor shall have lockable (by hardware or software USB ports for additional device connection.
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Data Acquisition System. DAS") and kWh Meters
73. The Data Acquisition System shall be the Sunlight General Capital variant of the Deck Monitoring system, and shall be procured by Owner for installation by Contractor.
74. For Sites containing multiple discrete SGF’s, multiple Data Acquisition Systems may be required in accordance with the Owner‐Furnished Owner-Furnished Engineering designs. Further, for sites with arrays at multiple tilts and/or azimuths, a separate weather station shall be provided for each tilt or azimuth in accordance with the Owner‐Furnished Owner-Furnished Engineering designs.
75. Each DAS shall include a datalogger ("All‐in‐OneAll-in-One" box), kWh meter (billing meter), and environmental monitoring instrumentation as follows:
i. A plane‐of‐array plane-of-array pyranometer.
ii. A horizontal pyranometer
iii. An ambient temperature sensor iv. A back‐of‐module back-of-module temperature sensor Pyranometers shall be manufactured by Hukseflux, and shall be the LP02 device.
76. Each DAS shall include Modbus communications with its associated inverters and kWh meters.
77. Each DAS shall include a minimum 72 hour backup battery, and a minimum 30 day first in‐first in-first out (FIFO) removable data storage device.
78. The datalogger shall be mounted in a location where it is protected from direct sunlight.
79. Contractor is responsible for the supply and installation of each DAS, and for the coordination, supply and installation of internet connection hardware and software through the Local Unit local area network and internet access firewall. Internet access shall be by means of hard‐wired hard-wired communications infrastructure. .. For TCP/IP data communication runs whose length exceeds the 300ft distance limit recommended for CAT 5/CAT 6 copper‐based copper-based wiring, optical fiber communications wiring shall be installed which shall be run within innerduct and in conduit throughout.
80. RS‐485 RS-485 cabling shall be selected based upon the service. This shall include, as specifically applicable: • 120 Ohm characteristic impedance. • UL Listed • Specifically listed for RS‐485 RS-485 communications • Wet rated for all RS‐485 RS-485 runs that are outdoor and exposed, or for all runs that are located underground. • There shall be a separate, insulated, ground reference conductor, which shall be terminated at both ends of each RS‐485 RS-485 run. • There shall be a separate shield and drain conductor, which shall be terminated at one location only for the entire RS‐485 RS-485 system. High‐temperature • High-temperature (75 degC minimum) rated for all runs that are located on rooftops. • Insulation rating shall be appropriate for entry into energized equipment enclosures (typically 600V). If an appropriate insulation rating is not available, then it is acceptable to install an appropriately‐rated appropriately-rated and UL Listed insulating sleeve on cable sections entering energized equipment enclosures. Note that Belden ▇▇▇▇▇▇ does not manufacture a cable that is consistent with these requirements. Teldor 9392LC2 is an example of an approved and appropriate RS‐485 RS-485 cable. Contractor may use multiple different RS‐485 RS-485 cables based upon the service needs however.
81. 120V power to each DAS datalogger shall be taken from a single, dedicated breaker within the Load Center that is located closest to the DAS datalogger, or from a dedicated and new circuit breaker that is installed within an existing and nearby load distribution panel located within a facility
82. Where applicable, 120V power to each kWh meter shall be taken from a dedicated 3A breaker or isolatable fuse within the Load Center that is located closest to that kWh meter.
83. kWh meters that are used for performance monitoring and/or for billing purposes shall be capable of field‐accuracy field-accuracy verification and shall be socket‐mountedsocket-mounted. The Schneider Ion 8650 kWh meter is the approved device, with a 9s Socket base.
84. Current Transformers (CTs) shall be revenue grade, shall have an accuracy of at least 0.3%, and shall be sized such that the CT range is no greater than 150% of the maximum inverter current output. Split‐ Split-core CTs are generally not suitable.
85. Contractor shall install and commission a floor‐standingfloor-standing, or wall‐mountedwall-mounted, kiosk-style monitoring system public display (non-touch screen) at each SGF Site, to be installed at a location to be determined at a later date. Installation shall include all power and local area network communications wiring and infrastructure, and commissioning shall include all work necessary to accomplish permanent communication with the external internet. The kiosk shall incorporate the following features:
a. A one‐device one-device solution is required. The processor and peripherals (monitor, power supply, ,etc.) must be a part of a single enclosed device. It is not acceptable to have a kiosk system where the monitor is separate from a remote PC
b. The kiosk will be connected to the internet via the site’s wired site network. Therefore the operating system shall be network‐compatiblenetwork-compatible.
c. Remote login software shall be provided, allowing for remote kiosk viewing, maintenance and upgrade.
d. The monitor kiosk shall have a touch screen, with lockable (by hardware or software USB ports for additional device connection.
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