Ballasted Ground Mount Presentation

1. Components Overview 2. Start Section vs. Add Section 3. Installation Procedures 4. Grounding 5. Customization 6. Design Criteria 7. Case Studies 8. Why Patriot?

Table of Contents

Components Overview: Concrete Ballast Block

Key Features: • 3000 PSI Mix Design • Rebar Reinforced • 2’ x 5’ x 14” Standard • Multiple Sizes Available

Ballast Block with Fork Pockets

Patriot’s 2’ x 5’ x 10” Block Patriot’s Standard 2’ x 5’ x 14” Block

Components Overview: Mounting Plates

Key Features: • Dipped Galvanized • 10-30° Tilt Adjustment • Slotted Holes • J-Bolt Attachment

Slotted Holes for J-Bolt Attachment

10-30° NS and EW Adjustment Galvanized Mounting Plate

Components Overview: Post

Key Features: • 2’ Standard Length • 3” Square Tube • Dipped Galvanized • Telescoping Design • 1” Increment holes

Telescoping post Up and Down Adjustment.

Post adjusted 10 degrees to accommodate NS Slope.

Posts in stock and ready to ship.

Components Overview: Truss Key Features:

• 10-40 Degree Angle Adjustment

• Allows for both 60 and 72 cell modules

• 50 KSI Min. Yield • Dipped Galvanized

60 Cell 72 Cell

This truss is set at a 30 degree tilt angle.

Galvanized Truss

Standardized for 60 & 72 cell

Components Overview: Rail Key Features:

• 202” Mounting Length • 5 Modules per Section • Swedged Ends • + or – 1” adjustment • 12 Gauge Thickness • Galvanized Steel • Wire Management

Swedged Rail Attached to Truss

202” Standard Rail Length

Internal & External Wire Management

Start Section vs. Add-On Section Start Section Add-On Section

• 2 Ballast Blocks • 2 Mounting Plates • 2 Posts • 2 Trusses • 2 Rails • 2 Bolts – Post to Block • 2 Bolts – Truss to Post • 2 Bolts – Rail to Truss

• 1 Ballast Block • 1 Mounting Plate • 1 Post • 1 Truss • 2 Rails • 2 Bolts – Post to Block • 2 Bolts – Truss to Post • 2 Bolts – Rail to Truss

5 Modules per Section

Start Section vs. Add-On Section

Add Section Start Section Add Section

*Starts to Adds ratio has a significant effect on price per watt for racking material. The longer the row is East to West = lower $/watt. The longer the array is North to South = higher $/watt.

Ballast Block Installation Step 1: Set Block in Surveyed Location.

Ballast blocks set in place.

Site preparation before setting ballast blocks.

Standard center ballast to center ballast spacing is 202”.

Mounting Plate to Ballast Block Step 2: Secure

mounting plates.

Slotted holes allow for adjustment NS and EW. Additional washers can be

used to level plate on uneven ground.

Mounting plate is installed and ready for post installation.

Set plates over J-bolts, tighten down nuts and washers until secure.

Post and Truss Installation Step 3: Attach post to mounting plates and attach truss to post.

Attach post to mounting plates using two bolts. Adjust tilt if necessary.

Attach truss to post using two bolts. Bottom bolt location determines tilt angle.

Both post and truss installation only require 4 bolts in total.

Rail Installation Step 4: Attach rails to

trusses – 1 bolt for each connection point.

Rails slide together for quick install and minimal hardware.

Top-down view of rail to truss connection.

Three incremental holes for spacing adjustments. Slotted holes allow for thermal expansion.

Module Installation Step 5: Assemble

modules to rails – Top clamp hardware.

Top clamps allow for quick installation compared to

underside attachment to frame.

Adjustable end clamps accommodate 30-50mm module frame thicknesses.

Patriot Mid-Clamp

Grounding Options Top Clamp Grounding

Plate (Module to Rail)

Grounding Lug & Copper Wire

(Module to Module)

Bonding Strap Jumper (Rail to Rail)

Lug & Copper to Ground

Rod (Rail to Ground)

*Consult with electrical inspector prior to grounding the array. Electrical codes can vary based on location. Patriot assumes no responsibility for electrical grounding.

Customization: Multiple Ballast Block Sizes and Features

Block with Fork Pocket Holes

Hybrid Ballast with Post Driven

*Patriot recommends a civil engineered, wet stamped drawing for each ground mount project to determine suitable ballast size and post based on: Soil Conditions, Wind Load, Snow Load, Module Size, Tilt Angle and Height Clearance.

Standard 14” Block

10” Ballast Block

Customization: Rail Lengths

Shorter rail lengths to accommodate string sizing and space maximization.

4-Panel Sections for higher wind loads and string sizing.

*Patriot recommends a civil engineered, wet stamped drawing for each ground mount project to determine suitable rail length based on: Wind Load, Snow Load, Module Size, Tilt Angle and Height Clearance.

3 Panels

Customization: Accessories

Mount combiner box to truss

Hybrid Ballast with Post Driven System

Additional blocks for mounting combiners

External Wire Management Accessories

Mount Micro Inverters directly to rail

Cable trays mounted on ballast blocks

Design Criteria Questions • Windload: 90 MPH? 100 MPH?

140 MPH?

• Snowload: 0 PSF? 30 PSF? 60 PSF?

• Site Size: How much area is available? Shading?

• String Size: 10? 12? 13?

• Project Timeline: What month(s) is expected for installation?

• Project Size: How many kW or MW

• Module Size: 60 or 72 cell? What size wattage, 300? 290? 240?

• Project Location: City and State?

• Tilt Angle: What is desired tilt?

• Height Clearance: What is the desired height above grade for snow, vegetation, O&M, customer preference etc.?

Case Study: Residential 4kW

• Low-profile Design • Small Footprint • No Maintenance • Module clearance

for vegetation removal

• Low Cost

• No Post Driving • No scaffolding or

ladders • Quick Installation • Integrated Wire

Management

Advantages for Home Owner: Advantages for Installer:

Case Study: Commercial 150kW

• Low-profile Design • No Maintenance • Sufficient module

clearance for vegetation removal

• Minimal Site Prep • Quick Installation • Integrated Wire

Management • Cost Savings with

longer rows

Advantages for Business Owner: Advantages for Installer:

Case Study: Utility 500KW

• Low Cost Racking • No Maintenance • Module clearance

for O&M • Meets all building

code design criteria • Galvanized Steel

• No scaffolding or ladders • Quick Installation • Ability to follow land

contours – Adjustable Post

• Cost Savings with longer rows and string sizing

Advantages for Owner: Advantages for Installer:

Why Patriot Solar Group? Over 20 years of manufacturing and design expertise. Past clients include: NASA, Boeing, and Raytheon.

Vast amounts of inventory ready to ship. High capacity/ high production manufacturing.

Made in USA – Buy American Act & ARRA Compliant. 10 year structural warranty.

Custom Engineering to meet any design criteria.

Patriot offers site prep and installation services for any size project.

Renowned customer service and in-field technical support.

Thank You! For more information, please contact us at:

www.patriotsolargroup.com info@patriotsolargroup.com

517-629-9292