Unirac PV Racking Basics
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This document provides an introduction to Unirac's PV racking systems. It discusses racking fundamentals and basic terminology. It also reviews various racking options from Unirac, including SolarMount, SunFrame, ULA, RapidRac, S-5!, and ClickSys. Pole mounting options and considerations for racking design prerequisites are also covered.
Unirac PV Racking Basics
- 1. 1 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 2. Racking Basics This is an introduction to Unirac’s PV Racking Systems Other presentations we offer include: • Unirac Attachment Options • Unirac SolarMount, RapidRac, CLICKSYS, ISYS, ULA • Array Tilt & Ground Cover Ratio (mutual shading) Optimization • Working Safely with PV Systems • Off-Grid, Grid-Tie, & Grid-Interactive Systems IOM • Other training programs 2 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 3. Outline • Safety First y • Racking Fundamentals • Basic Terminology • Pole Mount O Options • Racking Options • Racking Design Pre Requisites Pre-Requisites 3 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 4. Safety First • Safety is the responsibility of every employee • Safety is a full-time job • Never work alone on a PV system • Professional tools are a must • Professional equipment training is a must • Know your system before working on it • All circuits must be considered live at all times • Weather / Mechanical / Electrical Hazards pose very serious risks • Adhere to local & international safety codes • Severe injury or even death may result from improper handling 4 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 5. Racking Fundamentals Where will the PV system be installed? y • Ground Mount • Roof Mount • Pole Mount 5 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 6. Racking Components Module Hardware - how the module is attached to the racking Racking Type - what the module is attached to Attachment Options - how the racking is attached to the substructure Tilt - are the modules tilted away from the y substructure toward the sun? 6 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 7. Module-to-Rail Connections Top mounting clamps Bottom clips 7 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 8. Rail Types • SolarMount Standard • SunFrame • SolarMount Light • SolarMount Heavy Duty • SunFrame 8 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 9. Connection Between Rail & Roof • L-foot • Standoff • FastFoot • Threaded Feet • Tile hooks 9 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 10. Basic Terminology • Solar Module Orientation • Solar Array Orientation Basic Tools • Solar Array Orientation • Solar Array Size • Rail Orientation • Tilt Mount • Flush Mount 10 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 11. Solar Module Orientation Landscape Portrait 11 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 12. Solar Array Orientation Basic Tools B i T l Compass Inclinometer 12 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 13. Solar Array Orientation • Facing True South for Northern Hemisphere Locations • Facing True North for Southern Hemisphere Locations 13 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 14. Solar Array Orientation WHY Facing True South for Northern Hemisphere Locations ? Sun Path Polar Plot for Dubai UAE 14 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 15. Solar Array Orientation WHY Facing South for Northern Hemisphere Locations ? Sun Path Rect. Plot for Dubai UAE 15 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 16. Solar Array Size Modules arranged in rows and columns No. of E-W Rows x No. of N-S Columns Array orientation is independent of module orientation 16 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 17. Rail Orientation When looking at a south-facing solar array: • Rails running East-West are l low profile fil • Rails running North-South are high profile 17 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 18. Sawtooth (Shed) Tilt 18 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 19. Continuous (Single Plane) Tilt 19 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 20. Low-Profile, Portrait Tilt 20 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 21. High-Profile, Landscape Tilt 21 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 22. Flush-to-Roof • No additional tilt away from substructure y • Mounted close to roof – modules are within ten inches of roof 22 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 23. Flush-to-Roof No additional tilt away from substructure 23 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 24. Flush-to-Roof (SolarMount) 24 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 25. Flush-to-Roof (SunFrame) 25 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 26. Pole Mount Options 1. Pole Top 2. Pole Side 2 P l Sid 26 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 27. Pole Mount – Pole Top 27 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 28. 28 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 29. 6” PoleTops 29 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 30. Pole Mount – Pole Side Fixed tilt or adjustable 30 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 31. 31 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 32. Racking Options 1. SolarMount 2. SunFrame 3. 3 ULA 4. RapidRac 5. S-5! S 5! 6. ClickSys 32 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 33. 33 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 34. SolarMount Components 34 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 35. SolarMount Tilt Tilt Leg Adjustable j High-Profile High Profile or Fixed Low-Profile 35 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 36. SolarMount can accommodate very long runs 36 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 37. Google Headquarters Mountain View, CA 37 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 38. Open Structure (SolarMount) 38 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 39. Awning for Residential Application 39
- 40. 40 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 41. 41 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 42. • Quick and simple installation • Fewer people on roof 42 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 43. Screw Slot Larger Diameter End Cap Screws Serrated Surface for L-Foot attachment 43 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 44. Ground Mount 3 KILOWATTS TO 1+ MEGAWATT 44 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 45. Ground Mount 45 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 46. Roof-Mounted U-LA (reversing a slight north incline) 46 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 47. Ground Mount 47 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 48. PV s PV’s Universal Flat Roof Solution 48 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 49. Ballast (RapidRac) 49 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 50. • Commercial flat roof racking system •Delivers solution t customers’ #1 concerns D li l ti to t ’ lighter weight minimal penetration shorter installation times 50 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 51. • Meets wind requirements up to 120 mph • Over 120 mph possible with some penetrations • Wind tunnel tested • May require zero penetrations 51 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 52. 52 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 53. For tilt arrays arrays, attach SolarMount rail with S-5! 53 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 54. and now for something completely different… 54 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 55. The lowest cost fastest flush roof cost, fastest, mounting system 55 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 56. CLICKSYS beam 56 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 57. The slider holds top mounting clamps on CLICKSYS 57 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 58. CLICKSYS connectors single flange double flange optional butyl pad 58 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 59. Click connections Click! 59 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 60. CLICKSYS options PV QuickMount flashing Q g Creotecc tile hook Unirac standoff 60 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 61. Racking Design Pre-Requisites ( (Grid Tie Systems) y ) 1. Site Survey & Analysis 2. Advanced Software & Hardware Tools 3. Tilt Angle Analysis & Optimization 4. Shading Analysis & Optimization 61 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 62. Site Survey & Analysis 1/2 ( (Grid Tie Systems) y ) PV Grid Tie Systems Site Survey & Analysis Form Site Name & Address Date Job No. Owner Name & Contact No. Eng. ID Utility Name & A Utilit N Account N t No. Tech. T h ID Pre-Visit Instructions & Notes GPS & Google Maps Sun Path Print Note N t 1 Note 2 Location & Distances of BOS Equipment Electric Room Distance to Array Switchboard S it hb d Type/Model/Rating T /M d l/R ti MDB Type/Model/Rating Meter Type/Model/Rating Substation / Transformer Type/Model/Rating MDB S Spare C Connections ti Space for Inverters S f I t Space for Disconnects Space for Monit. Eqpt. Site 24-Hour Access Y/N Data/Internet Point Y/N Cables Routing Note 1 Cables Routing Note 2 Take Ph t T k Photos Y/N Others Oth 62 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 63. Site Survey & Analysis 2/2 ( (Grid Tie Systems) y ) PV Grid Tie Systems Site Survey & Analysis Form Site Name & Address Date Job No. Owner Name & Contact No. Eng. ID Utility Name & A Utilit N Account N t No. Tech. T h ID Location of Solar Array Roof / Ground Area Height AGL Orientation/Azimuth Slope Sl E-W EW N-S NS Fence / Parapet Y/N F P t Surface Type Surface Finish Wind Exposure Cat Seismic Cat. Nearby Shading Y/N If Yes, Sketch on Sun Path Print Nearby Shading Sketch Solmetric Reading S l t i R di Y/N New N b C N Nearby Const. Y/N t Space for PV Combiners Space for DC Disconn. Site 24-Hour Access Y/N Cables Routing Note 1 Take Photos Y/N Cables Routing Note 2 Others Oth Others Obtain Site Drawings (As Built) Electrical Drawings Y/N Others Structural D St t l Drawings Y/N i Others Oth 63 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 64. Advanced Software & Hardware Tools 1. Software: PVsyst y 2. Hardware: S Solmetric S SunEye™ 64 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 65. Tilt Angle Analysis & Optimization (Grid Tie Systems) 65 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 66. Shading Analysis & Optimization (Grid Tie Systems) Nearby Shading Effects 66 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 67. Shading Analysis & Optimization (Grid Tie Systems) Mutual Shading Effects 67 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 68. Shading Analysis & Optimization (Grid Tie Systems) Mutual-&-Nearby Shading Effects 68 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 69. Summary (Grid Tie Systems) Geographic Location Survey & Analysis Tilt A l O ti i ti Angle Optimization Layout & Shading Optimization Unirac Solution Selection & Optimization 69 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2
- 70. Thank you for attending UniRac Racking Basics For questions, please contact us at: fm28201@eim.ae +971-50-624-6126 For products brochures, sizing charts, & installation manuals, please visit: UniRac.com 70 PROPRIETARY & CONFIDENTIAL CONTROLLED DOCUMENT REF: SIS-UNIRAC-RACKING-BASICS-REV-2