EG4 Brightmount Semi-Circle Install?

Suncahser · Mar 11, 2024

I have 10 sets of EG4 Brightmounts to install. 40-475W Q.Cell Bifacials.

Just throwing this question out there.

Would you rather have 40 panels facing due South, OR assemble a semi-circle starting East and ending due West.

The breaks in the semi-circle would occur every 4 panels or 15 feet for a total of 140' of panels.
Space is not an issue.
Currently in the design phase

AZ Solar Junkie · Mar 11, 2024

Suncahser said:
I have 10 sets of EG4 Brightmounts to install. 40-475W Q.Cell Bifacials.

Just throwing this question out there.

Would you rather have 40 panels facing due South, OR assemble a semi-circle starting East and ending due West.

The breaks in the semi-circle would occur every 4 panels or 15 feet for a total of 140' of panels.
Space is not an issue.
Currently in the design phase

Having all the panels facing due south will produce more energy over the course of the entire day than having some facing east and some facing west, etc. With panels facing different directions you will see higher output early in the day and/or late in the day, but the total production over the course of the day will be less.

hwy17 · Mar 11, 2024

I might do like 5 strings of 8 with 3 facing south and 1 each facing east and west.

Edit to fix string numbers.

Then maybe 2 100A charge controllers handling E-S-S and S-W. Or all into 1 200A charge controller would be fun.

The semi circle idea is fun though. I wouldn't do 10 angles I would do 5 as above, E-SE-S-SW-W. And then again, 2 or 3 charge controllers.

South is more ideal for production which is why I'd rather do 3 dedicated to south, and then 1 each doing day extension angles. The problem with putting all your panels due south is dealing with potentially up to 400A of 48v production. But if you just went all south and capped it with 200A of charge controller that's not a problem. On paper it's probably the best option.

millsan1 · Mar 11, 2024

I'm in your boat. I have 10 as well. Right now, I have 6 set up due south. The other 4 are in the build stage, and I am going to play with their placement during the summer to figure out what works best. I have them on 10' wide pallets, so I can move them around and figure out what works best before permanent mounting them.

wdwtx2.0 · Mar 11, 2024

Provided there are no shading conditions, you will never do better than due south for over all production.

JoeHam · Mar 11, 2024

millsan1 said:
I'm in your boat. I have 10 as well. Right now, I have 6 set up due south. The other 4 are in the build stage, and I am going to play with their placement during the summer to figure out what works best. I have them on 10' wide pallets, so I can move them around and figure out what works best before permanent mounting them.

Pictures please, or it didn’t happen

.

Edit, I did find these pics but nothing with the 10’ pallets which intrigued me.

A novice's first impressions on EG4 products

As a solar novice, here are some of my first impressions of the EG4 6000 EX Inverter/Charger, the LL V2 batteries, and the battery racks. First, to set the stage, I recently purchased 2 ea. 6000 EXs, 6 ea. LL V2 batteries w/rack, 6 ea. LP4 batteries w/rack, and a Chargeverter (not arrived yet)...

diysolarforum.com

Suncahser · Mar 11, 2024

AZ Solar Junkie said:
Having all the panels facing due south will produce more energy over the course of the entire day than having some facing east and some facing west, etc. With panels facing different directions you will see higher output early in the day and/or late in the day, but the total production over the course of the day will be less.

They would be going into a Sol-Ark 15k grid tie with excess sell back to Alabama Power.

Was hoping to recharge batteries first thing in morning and be fully charged for 1 to 6 pm because they pay the most during that time frame during summer months.
Rest of the time during the year about same PAE.

To keep voltage correct it is currently proposed as 5 strings of 8 panels.

AZ Solar Junkie said:
Having all the panels facing due south will produce more energy over the course of the entire day than having some facing east and some facing west, etc. With panels facing different directions you will see higher output early in the day and/or late in the day, but the total production over the course of the day will be less.

Suncahser · Mar 11, 2024

wdwtx2.0 said:
Provided there are no shading conditions, you will never do better than due south for over all production.

Thanks

registered-bum · Mar 11, 2024

Having all the panels facing due south will produce more energy over the course of the entire day than having some facing east and some facing west, etc

This is generally true - however it assumes that your SCC will not be clipping the excess power during peak day time generation.

Assuming best case day time peak generation - Can your Sol-Ark 15k capture all 19,000 ~~40,000~~ kw? [edited to fic bad math]

If not, then your concept of "charge my storage asap, then sell the excess back during peak hours" - may have some serious benefit.

... so, it depends, and your pallet concept (try some with S-SE facing and others with S and still others with S-SW) gives your experiential data.

We'd love to see pics of that approach, and the numbers for battery capture vs sell-back to the grid.

millsan1 · Mar 12, 2024

JoeHam said:
Pictures please, or it didn’t happen .

Edit, I did find these pics but nothing with the 10’ pallets which intrigued me.

A novice's first impressions on EG4 products

As a solar novice, here are some of my first impressions of the EG4 6000 EX Inverter/Charger, the LL V2 batteries, and the battery racks. First, to set the stage, I recently purchased 2 ea. 6000 EXs, 6 ea. LL V2 batteries w/rack, 6 ea. LP4 batteries w/rack, and a Chargeverter (not arrived yet)...

diysolarforum.com

EG4 Brightmount Semi-Circle Install?

Suncahser

New Member

AZ Solar Junkie

Maricopa, AZ

hwy17

Anti-Solar Enthusiast

millsan1

Solar Enthusiast

wdwtx2.0

Solar Enthusiast

JoeHam

Solar Wizard

A novice's first impressions on EG4 products

Suncahser

New Member

Suncahser

New Member

registered-bum

New Member

millsan1

Solar Enthusiast

A novice's first impressions on EG4 products

Attachments

Similar threads