Panels on the roof!

May 6, 2004 by · Leave a Comment
Filed under: Solar Energy 

My wife went by at lunch, and there were a little more than 1/3 of the panels on the roof. By the end of the day, all but one panel were installed.

The Finished Product

Solar Installation Day 4 end of day

This is the finished product.

Solar Installation Day 4 End of Day Angle

This is the end of day picture from another angle. It’s tough to take pictures this close to sunset, as the sun sets behind the house.

Last Panel

I think they left the last panel off so that they can finish the wiring when they come back on Monday. No work until next Monday, and it looks like they’ll finish then.

Work in Progress

Solar Installation Day 4 mid-day

This is the house as it appeared at lunchtime.

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The men at work.

More Hardware Pictures

Solar Panel Back

Here’s what the back of a panel looks like.

Solar Panel Label

Here’s the label from the back of the Sharp NT-175U1 panel.

Upper Rail Cross Section

This is a better cross-section of the upper rail (the one the panels are mounted on).

Schedule

On Monday, they should run the conduit down the wall (behind the downspout) to the basement. Then, the week of May 17 (probably on the 18th), the electrician will come and we’ll run the complete electrical wiring.

Installation – Day 3

May 5, 2004 by · Leave a Comment
Filed under: Solar Energy 

Today, a few “getting ready” steps occurred before the panels were installed.

Holes were drilled in the mounting rails for brackets and wires.

The ground wire was installed, linking the rails. The rails will eventually be tied to the house ground in several places.

The brackets for the panels were installed in the rails, to be relocated when the panels are installed.

Tomorrow, they expect to install panels.

Solar Installation Day 3

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Wires on roof

This picture shows a close-up of the rails and wires. The loops of wire are loose and we’re about to get a thunderstorm – I hope they stay on the roof!

Ground Wire on roof

I believe that the copper-colored wires are the ground, tied to the rails underneath the rail.

More to come tomorrow!

Today’s Installation Progress

May 4, 2004 by · 1 Comment
Filed under: Solar Energy 

My wife stopped by at lunchtime. They had a few of the mounting rails installed. If I remember correctly, they will be installing wiring after the rails are installed. Tomorrow or Thursday should see the first panels installed.

By the way, the “before” pictures are found at this location: Before Pictures.

Update 6pm: It appears that they’ve finished installing the mounting rails. Tomorrow, they should be finishing that and installing the in-track wiring.

Here are some pictures.

Solar Installation Day 2

This is a picture of the house with the rails in place. (Sorry about the sun glare)

Rail Installation

Here are the guys installing the rails.

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Lower rail

This is the lower rail. These are installed perpendicular to the mounting rail and are attached to the roof with a lag screw into the rafters. Asphalt sealant is used to prevent leaks.

Upper Rail

This is the upper mounting rail in cross-section. These are the long rails. The open side is mounted facing up.

Rail Clips

The thingie on the left is the inter-module clip. It is inserted into the upper mounting rail (the flat part at the bottom slides in) and the top is tightened against the panel itself. The thingie on the right is used to lock the upper rail to the lower rail. It slides over the top of the lower rail, and a nut and washer are bolted through a hole in the upper rail. The lower rail prevents the upper rail from shifting from side to side, and the bolts along the length of the upper rail prevent it from shifting up and down along the lower rail. The suspension above the roof allows for airspace below the panels for cooling and to prevent unwanted wind effects.

More pictures tomorrow – maybe with the first panels in place.