Reducing Risk through Reliability: Providing Solar Trackers in - PowerPoint PPT Presentation

Reducing Risk through Reliability: Providing Solar Trackers in Desert Conditions Intersolar Middle East, Dubai

Tracking improves solar asset value Solar trackers compared to fixed-tilt +18-25% Fixed Tilt Afternoon Power Demand Peak Generation Tracking +8-10% System CAPEX ~20% increase in production Tracking increases the energy production of a solar Project ROI is increased and project LCOE is reduced due to ~20% higher energy return for system by nearly 20% only ~10% project CAPEX increase Energy values increase due to alignment with demand through broader generation curve

Vast experience provides timeless reliability ARRAY HAS INSTALLED +20,000 KILOMETERS OF TRACKERS 16,000+ MW Years of Operation “Array has the most extensive track Dubai, record of any PV UAE tracker vendor.” – Greentech Media Research, Global Tracker Landscape Report 2017 Boston, USA

Array’s trackers operate flawlessly in desert-type conditions • Low-latitude desert • Ambient temperatures up to 46 ° C • Presence of dust • High UV exposure • Hot, dry summers very similar to MENA desert climate The v The vast majority of st majority of Arra Array’s 7G y’s 7GW of W of op operati erational onal capacity is in dese capacity is in desert-l -like e conditions in Southern Calif conditions in Southern California, Arizona, Ne rnia, Arizona, Nevada and T da and Texas xas

Tested and Approved for Desert Environments • IEC 62817 tracker certification • 480 hour test • Exposed the tracker to fine dust • Cycled the temp -30 to 60 C while running • Confirmed - NO NO operational change • Array has decades of desert experience

Industrial-type motor; dust & UV-proof, no batteries The mo The motor is the hear r is the heart of t of your syst ur system! em! • Highest quality AC motor, industrial grade • Only one motor per almost 1MW! • Sealed and lubricated for life • Double viton seals, enclosed to be protected from UV • Extremely wide temperature range – unlike battery-based technologies

Batteries in the Desert to Keep Your Asset Safe? • Unlike Array, all o all other her track trackers rs rely on electr rely on electrical al st stow • Batteries are essential for other trackers to stow • Charge capacity is greatly reduced above 40°C ambient • Charging at temperatures below 0°C and above 50°C may cause damage

Mechanical wind mitigation; safe in any climate Arra Array’s uniq y’s unique wind management ue wind management solution solution • No reliance on temperature- sensitive batteries, no UPS • Elimination of vulnerable communication chain (7 links!) • Designed for full site wind speed at all tracker angles • Not subject to torsional galloping

Why Array Technologies?

Thank you. Martin Mitscher Director International Sales and Business Development, Array Technologies, Inc. mmitscher@arraytechinc.com

Pioneering role in tracker market dynamics U.S. Single-axis tracking market share in Challenges in transition fixed  tracked ground-mount projects [2016 data based on GTM Global Tracker Landscape Report 2016] • Array pioneered the US utility market 72% transition from fixed rack to single-axis tracking Optimize LCOE • Lenders and asset owners needed to be convinced of tracker viability • Primary concerns to address: 8% Maximize Minimize Operational  Reliability, O&M, failure risk Asset Value & Financial Risk 2006 2016 • Primary target to achieve:  Reduce LCOE

Our Experience. Your Advantage. 2002 1991 2017 First Individual First Solar Array Introduces: Row Driven • First Quick Powered Tracker 2008 Single-Axis 1993 with Battery Disconnect Tracker First Tracker Driveline Back-up First Active Closed- Bankability • First 62° ROM Loop Tracker Report Tracker Patent Issued 2016 2015 2006 Array Introduces New v3 Features: 1992 V3 Launch: First Flexibly Linked • Flood-plain ready vertical 1985 • First Single Bolt mount motor Rotating Driveline Wattsun Module Clamp Tracker • 90 module rows for 1500V Corporation Wattsun • First Zero Scheduled systems becomes Array corporation Maintenance • CAB integration Technologies, Inc. founded Tracker • First Torsion Limiter Load Stabilizing Tracker

Venture into the Future of Tracking What’s Next? Robotic cleaning Monitoring and diagnostics Optimized Extended modular environmental building blocks range of operation (wind, snow, Accommodation corrosion, of new PV module temperature) Decreased technology install cost, time, and Customized complexity designs for low-load environments

Unique, flexibly linked architecture • Only 1 motor per ~1 MW • Unique single-bolt clamp • Flexibly linked, rotating • Extreme terrain flexibility Proven, industrial-grade Standard fasteners & driveline with articulating • • components installation tools u-joints • Drivetrain lubricated and • Octagonal torque tube for • New: Quick release sealed for life easy, robust connections detachable driveline

200 × Lower Unscheduled O&M Cost Based on 3 rd party data from TÜV 600 × fewer number of service hours With Array: With Decentralized Trackers: 1 repair/year for 100 765 repairs/year (2 per day) MW site, and far fewer for 100 MW site, and far more truck rolls truck rolls

7% Lower Scheduled Lifetime O&M Cost Based on 3 rd party data from TÜV Optimized solutions for vegetation management and module cleaning • 50% less frequent mowing due to higher module clearance • 6% less area to maintain due to higher module density – NO GAPS! Robotic module cleaner ready • NEW! Quick disconnect driveline • Robotic module cleaner ready Zero scheduled tracker maintenance Array = high density and no gaps, robotic cleaner compatible Competitor tracker has gaps and protrusions throughout

How Array Prevents Catastrophic Failure Reliable Wind Design Highest Structural Integrity • Designed for full site wind speed • 12 gauge steel, conservative at all tracker angles torque tube spans under 8m long • Proven mechanical wind • Octagonal torque tube – easy, management vs. electrical stow robust connections not subject to with 7 complex links in the chain fatigue like pin connections • Mechanical wind management not • Robust design avoids stress and subject to torsional galloping damage to modules related to torsional galloping

Best-in-class uptime Compare to decentralized tracker alternative which introduces a perpetual state of maintenance, reducing uptime and deteriorating performance. 28 Years of Learning & Innovation Our streamlined design is forged from decades of experience 99.99% Zero Scheduled Uptime * Maintenance for 30 Year Life Eliminate human error Fewest Failure Points Only 150 for 100 MW *Data provided directly from an Array customer’s monitoring system, tracking a conglomerate of sites totaling +300 MW

7% Lower LCOE Based on 3 rd party data from TÜV CAPEX Streamlined installation and commissioning reduces time onsite and saves upfront cost 7% Lower OPEX LCOE The lowest scheduled and unscheduled O&M achieves the highest savings Production Highest uptime in the industry delivers maximum energy production

20 300 × Less Likely to Experience Catastrophic Failure under rated conditions.