Page 41 - North American Clean Energy March/April 2019 Issue

solar spotlight: tracking systems
SEE AD ON PAGE 29
Solar FlexRack
Type of Tracker: TDP 2.0 Horizontal
Single-Axis Tracker with BalanceTrac
Drive System: Zero-Maintenance Distributed Slew Drive
Tracker Height: Per project specifications
Pile Count: 7 modules per pile Modules per Row: Up to 90 modules
Module Mount: Self-aligning, auto spacing direct bolt
Slope Tolerance: Up to 10% n/s Tracking Range: Up to 110° (+/- 55°)
Standard Configuration: 1 in portrait, 2 in landscape (crystalline); 4 in landscape (thin film)
Preventative Maintenance Required:
Zero
Tracker Power Consumption: Self- powered or 31kWh per tracker/year
Certifications: UL 2703
Key Features:
• Adaptable with crystalline or thin film, optimized for 1000V and 1500V modules and installation is easy with no prying, adjusting, or special tools;
• Self powered option available, and independently driven rows provide easy access for mowing, cleaning, and other maintenance;
• Lower per-unit fixed costs for BOS savings;
• Programmable technology to mitigate inclement climatic conditions;
• Independent tables increase design flexibility to maximize land use;
• Smart backtracking reduces
row shading to optimize energy production for high power density.
www.solarflexrack.com
NCLAVE
Type of Tracker: One-row single-axis
Drive System: Slew drive / linear actuator Tracker Length: 295' (88.9m)
Tracker Height: 4.9' (1.49m)
Pile Count: 7/8
Modules per Row: 90
Module Mount: Rails, clamp, rivet Slope Tolerance: Up to 20% grade n/s Tracking Range: +/- 55°
Standard Configuration: 2V x 45
Preventative Maintenance Required:
Minimal; grease slew drive once every 2 years, optional every 10 years
Tracker Power Consumption: 50kWh-year Certifications: TUV NORD, ISO 9001:2015,
ISO 14001:2015, EN 1090, IEC62817
www.nclavegroup.com
NEXTracker
Type of Tracker: Single-axis tracker
Drive System: One slew gear, 24VDC motor and self-powered controller w/dedicated solar panel per row
Tracker Length: 283' (85m) Tracker Height: 4.5' (1.4) Pile Count: 11/80 Modules per Row: 80-90
Module Mount: Shared mounting rails with integrated module frame grounding. Rails pre- align to locating holes in torque tubes.
Slope Tolerance: 15% (8°) n/s; unlimited e/w
Tracking Range: 120° (+/-60°)
Standard Configuration: Portrait
Certifications: Grounding/bonding: UL2703; Structural design: ASCE7-10, Tracker: UL 3703
www.nextracker.com
Scorpius Trackers, Pvt., Ltd.
Type of Tracker: Horizontal single-axis, tilted single-axis, dual-axis
Drive System: Linear actuators (array), gear motor drive (row)
Tracker Length: 206' (63m) (n/s row length) Tracker Height: Up to 6' (1.8m)
Pile Count: Between 225 to 450, depending on configuration
Modules per Row: Up to 126
Module Mount: Clamps or bolts and washers
Slope Tolerance: e/w 14%, n/s 5%, row tracker
Tracking Range: +/-60° in e/w
Standard Configuration: 2 or 1 up in portrait,
2 or 4 in landscape
Preventative Maintenance Required: Not required
Tracker Power Consumption: self-powered Certifications: Wind tunnel, Independent
Engineers Certification
www.scorpiustrackers.com
Array Technologies
Type of Tracker: Horizontal single-axis
Drive System: Flexibly linked rotating driveline
Tracker Length: Variable, maximum 330' (91m)
Tracker Height: Variable, nominal range 4' to 6' (1.2m to 1.8m), minimum 4' (1.2m)
Pile Count: Variable, average 7 modules per pile
Modules per Row: Variable, maximum 100 standard crystalline modules per row
Module Mount: Single-bolt module clamp
Slope Tolerance: N/S axis: 15% grade standard, E/W axis: 40° cone of flexibility along driveline
Tracking Range: +/- 52° standard, +/- 62° optional
Standard Configuration: 90 modules per row, 32 rows per module block
Preventative Maintenance Required: None Tracker Power Consumption: 400kWh/MW-
year
Certifications: UL 3703, IEC 62817, CE Declaration of Conformity
arraytechinc.com
GP Joule
Type of Tracker: PHLEGON Horizontal
Single-Axis Tracker
Drive System: DC linear electrical actuator
Tracker Length: 139' (42.5m) to 195' (59.5m) per tracker
Tracker Height: 5'5" (1.7m) top of post; 11' (3.35m) at max tilt
Pile Count: 0.1 pile per module; average 310 piles/MWdc
Modules per Row: Up to 84 modules per tracker
Module Mount: Rail, direct bolting
Slope Tolerance: 10° to 15° n/s
Tracking Range: -45° to +45°
Standard Configuration: 3x4 landscape
Preventative Maintenance Required:
None required
Tracker Power Consumption: 2-3MWh/ yr/MWdc
Certifications: CE, CSA, UL, RWDI www.gp-joule.com
Arctech Solar
Type of Tracker: Independent horizontal
single-axis tracker
Drive System: One slewing gear, 24VDC motor
Tracker Length: 147.63ft (45m)
Tracker Height: 6.56ft (2m)
Pile Count: 7
Modules per Row: 90
Module Mount: Any solution
Slope Tolerance: Up to 20% n/s slope
Tracking Range: Up to 120°
Standard Configuration: 2V45
Preventative Maintenance Required: Not required
Tracker Power Consumption: 0.08kWh typical
Certifications: BV, UL 2703, UL3703 www.arctechsolar.com
North American Clean Energy
41