SRT60SINGLE AXIS ROW TRACKER

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TECHNICAL

DATA SHEETST/SRT60/DS/OCT18

KEY DIFFERENTIATORS

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ZERO MECHANICAL MAINTENANCE Over half a decade of solar tracker system design engineering and testing has resulted in uncompromising reliability with Maintenance-free motors and gears, lower moving parts, industrial motors and gears mean maintenance-free energy generation. Bearings tested for 150 years of life.

SELF-POWERED SYSTEM WITH SMART PERFORMANCE COMMUNICATION ARCHITECTURESelf-contained units on each row include a dedicated charge PV module to provide power to the controller which drives the motor and hosts intelligent control electronics to position each tracker row for maximum yield.

INDEPENDENT BALANCED ROWS WITH +/-60° ROTATIONAL RANGESelf-contained units on each row include a dedicated PV panel to provide power to the controller which drives the motor and hosts intelligent control electronics to position each tracker row for maximum yield.

Tracker Technology has undergone Third Party Bankability

Boundary Layer Wind Tunnel Testing of Structures completed

CERMAK PETERKA PETERSEN

UNIQUE TECHNOLOGY FEATURES

WiFi enabled communication

No lubrication required

Robust control algorithms

Electronics for -10oC to +60oC

Stowing at wind speeds

No power consumption

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LEADING TERRAIN ADAPTABILITYUneven terrain? Hill? Yes! Our flexibly linked architecture, with articulating driveline joints and forgiving tolerances, create the most adaptable system in market for following natural land contours and creates the greatest power generation potential from every site. Our patented Universal Joint allows for upto 2 variations within the same ROW unheard off in any competitor.

ROBOTIC CLEANING READY, FAST AND SIMPLE INSTALLATIONWith a format similar to Fixed Tilt allowing for quick and easy installation with the use of Huck fasteners and Tools. Zero gaps between panels our trackers are robotic cleaning ready day one.

FAILURE-FREE WIND DESIGNDesigned and field tested to withstand some of the harshest conditions on the planet, reliably handling wind and lightning events with a fully integrated, fully automatic wind load mitigation system.

FLOOD CLEARANCE1.4m/4-5ft clearance for tracker electrical & Controls standard (1P).1.7m/5-6ft clearance for tracker electrical & Controls standard (2P).

MAXIMUM GCR WITH THE HIGHEST DENSITY OF ANY TRACKER No limitation. Typical range 33% - 66% depending on site condition. Higher density means less land, more power, more profit. Scorpius Trackers offers the unique ability to maximize the power density of each site, boasting 6% more density than the closest competitor comparable with Fixed Tilt Installations.generation. (Bearings tested for 150 years of life.)

300+

MW INSTALLED*

100+

MWIN PROCESS

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Design and Technology review by India’s leading Owners Engineers, consulting firms

TECHNOLOGY FOR THE ECONOMICS TO WORK

Independent Engineers Bankability Study 5 Tracker supplier diligence & comparison review

Boundary Layer Wind Tunnel Study for MMS Design

MMS Design Review as per IS 875 and ASCE 7-10 Building codes

* ROW AND ARRAY, IN INDIA, AFRICA, MIDDLE EAST, JAPAN

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ELECTRONIC CONTROLLER SPECIFICATIONS / FEATURES

Solar Tracking Method Astronomical NREL Ephemeris based algorithm with advanced Backtracking

Range of motion +/- 60°

Backtracking Backtracking algorithm handles installations on arbitrarily sloped land

Azimuth Correction Backtracking takes into account tracker axis misalignment with respect to True North

Stormy condition detection Barometric pressure sensors and lightening detectors

Auto stow during high winds High Wind auto stowing by wind station

Tracking Accuracy Typical +/- 2°

Automatic stowing time 4 minutes or less

Power backup for tracking Upto 4 days of battery backed power backup when fully charged

SCADA InterfaceWireless ZigBee between tracker componentsRS-485 / TCPIP Modbus to client’s SCADA

Battery type Lead Acid SMF / Li Ion Polymer / Other optimal, as per Geography

CONTROL CHARACTERISTICS

Control algorithm PID control for tracker position. PWM based motor movement. Time & location from GPS

Sensors includedInclinometer on each tracker. Anemometer on wind station with optional sensors for humidity, pressure, rain, lightening, diffuse sunlight detection sensor and irradiation

Over rotation protection Soft limits and mechanical hard stop at each sector drive

STRUCTURE & MECHANICAL SPECIFICATIONS / FEATURES

Max Design Wind Speeds (3 sec gust wind speed)

47 m/s at stow position (170 kmph as per IS 875 Part III)19 m/s during tracking (68 kmph as per IS 875 Part III)

Equivalent (ASCE) Wind Speeds

105 mph ASCE7-05 or 137 mph ASCE7-10. Customized designs for other wind speeds are available

Power Consumption (yearly) <350 KWh/year/MWp which is ~0.02% of energy generated by plant / MWp

Mechanical Bearing / Bushing Maintenance

No cleaning or lubrication needed for lifetime of plant (30 years)

Fabrication required at site Not required

Tracker Driving System Stainless Steel Cable Drive system. No maintenance required for life of plant

Number of Pedestals<450 pedestals per MWp for 1 in Portrait (layout and module rating dependent)

Structure design code AISC-360-10, AISI S100 / EN 1993-1-1, EN 1993-1-3 / IS-800, IS-801

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MECHANICAL DESIGN

Tracker Movement type Distributed (motor, pulley, sector and gear drive)

Coating with thickness HDG 60 micron per ISO14713, ISO 1461

Corrosion protection C3 (default), C4 or other on request

Pitch (E-W direction) Variable from 4m-6m as per module wattage, string size, land availability

Scorpius Trackers offers the best in Tracking Technology; from maintenance-free bearings for the lifetime of the plant, to electronics and actuators that are self-powered. Truly, world-class bankable technology at very competitive upfront CAPEX and minimal O&M costs.

TRACKING THE SUN. FROM DAWN TO DUSK.©

MECHANICAL DESIGN (CONTD.)

Ground slope requirement along N-S direction

Max +/- 5°

Ground slope requirement along E-W direction

No limit, independent ROW, backtracking will ensure no shadowing

Slope ToleranceUp to 17° in E-W Direction, Single Row in N-S can be bent in three places to handle the slopes

Max Wind Load 130 mph ASCE 7-10 (Higher on request); 185 kmph, 51 m/s

Uptime 99.90% +

Experience 5 Years

Certifications BV Bankability & IIT Bombay, SGURR, GENSOL, TUV, AGAMI

PV MODULES ARRANGEMENT

General Arrangement (Modules per table, tables per tracker, module orientation)

Upto 31 Modules Per String - 93 Modules per Table - 1P for 1500V system

Upto 21 Modules Per String - 84 Modules per Table - 1P for 1000V system

Tracker Dimension & Number of modules in a row per tracker

Max 93mX2m for 1500V System and 84mX2m for 1000V system

ENVIRONMENTAL CONDITIONS

Temperature operational range -10°C to +60°C

Temperature survival range -20°C to +80°C

Maximum snow load 735 Pa

Maximum installation Altitude (a.s.l.) 2500m a.s.l

Environmental protection (IP ratings) IP 65

GENERAL SPECIFICATIONS

Energy gain vs. Fixed-Tilt Up to 25-30% depending on site conditions

Land area required per 1 MW 3-5 acres / MW (GCR, layout and location dependent)

Ground coverage ratio 0.33 to 0.66 as per layout

Comprehensive Warranty25 Years for design life of structure10 Years for Structure and Drive System. 5 years for electronics

Codes and StandardsUL Certification (3703 & 2703) under reviewIS875-III 2015, ASCE7-5, ASCE7-10

ComplianceTracker: UL 3703; Grounding/bonding: UL2703; Structural design: ASCE7-5, ASCE7-10

HEAD OFFICE: 397/6-7, Senapati Bapat Road, Near Gokhale Nagar Signal, Pune - 411016, Maharashtra, India

LOCATIONS: Australia, India, Japan, Portugal (Europe, Mexico, Brazil), Thailand (South East Asia), UAE (Middle East, Africa), USA

+91 20 2565 9413 +91 20 2565 0564 info@scorpiustrackers.com www.scorpiustrackers.comT F E W