Assembling the Infrastructure to Support Our Photovoltaic Solar Panels

With our deadline looming for our photovoltaic solar panel rebate, our new solar provider, Real Goods Solar, sent out their ‘A’ team to complete our project.  They had three people on site yesterday, and a total of seven people working today.  They will meet the deadline.

There are three groups of arrays, with eight panels in each array, with six arrays for a total of 48 panels.  We are using Sanyo 215 watt panels with Enphase inverters.  The total nameplate production is 10.3 kW.  One array is on the West side of the East gable, another array on the South side of the North gable and there are four arrays on the Upper Flat roof.

We needed to put flexible conduit into the SIP to take the power from the array on the West side of the East gable through to the load center on the West side of the North gable.  This was a bit tricky as the chases were partially blocked by an I-joist connecting panels RK04 to RK05.

Also, we have four penetrations of the membrane outside our thermal envelope on the Upper Flat Roof where the conduit will take power between the four arrays on the Upper Flat roof.

The large team from Real Goods Solar worked extremely well together and make excellent progress today.  They are sending a smaller team tomorrow (as they work four 10-hour days) and then they will have a larger crew back on Tuesday morning.  We have to have the system completed and inspected by Friday, September 9 so we can have our HERS rater, Darrell Kelly, verify the installation before our rebate submission deadline on Monday, September 12.

We’ll get there …

The team from Real Goods Solar arrived in two trucks and a van today. They made excellent progress.

 

The West-facing array on the West side of the East gable. This array is designed to be as high as possible yet not be above the peak of the gable.

 

Another view of the array on the West side of the East gable. The Enphase inverters are in place on this array.

 

You can see the flexible conduit inside the SIP, which takes the power from the array on the West side of the East gable.

 

The flexible conduit goes to the West side of the North gable, where it is combined with another array.

 

Two conduits take power from two arrays on the Upper Flat roof. Note the reclaimed Redwood under the SIPs.0

 

There are two more penetrations of the Upper Flat roof. You can see the junction box that is against the reclaimed Redwood under the SIP by the windows.

 

The array on the North gable straddles the peak so we can see as much blue California sky as possible from the lower level.

 

 

 

 

 

 

 

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