How about this: PV inverter connected line side: feed conductors to a subpanel. MSP is 200A. PV rated is 60A. Sub panel is 100A. Derating the main breaker in the MSP to 175A should be fine, right? Subpanel also has a 100A main breaker. 120% math for the main panel is satisfied. Curious if Im missing anything. Thanks!
The subpanel line side is rated for 100amp, so this is good for the 60amp tap, and the main breaker should protect from overload. Then derating the MSP (if the main bus is 200amp rated) to 175 allows a solar feed of up to 65 amps. The only thing missing here would be the protection of the solar panels themselves. If the line side to a 100 amp then there is potential that 100amp could go to the modules, e.g. ground fault, so you would need an overcurrent protection on the 60amp feed from the solar.
I am not aware of an ATS that accepts solar inputs. There are, however, inverter/battery systems that accept generator inputs. Solar and Generators do not talk to each other. More information would be needed to engineer something to achieve your end goal. You in Arizona?
@@oscar27ization You are correct in most cases! It is the inverter that matches the sine waves from the utility company or input source. There are a lot of ways it doesn't work and will create an explosion in some!
While I understand supply line side fed design, I rather replace an older panel with a newer upgraded panel has higher buss bar current rating like the 225amp solar ready panels. Used to be a supply chain issue not anymore, I see them at Home Depot on the shelf now. Whatever panel you like so many older homes here in Phoenix 1970's panels usually too small bunch of wire jammed in them.
My utility company says my solar installer can’t tap inside my meter box. Installer wants to use these crimping things on the wires to tie in. What is there other option?
There are some AHJs that don't allow a line side tap behind the meter. Some allow it after the meter? Your other option might be to replace/upgrade your electrical panel...🤷♂️😥
You guys are forgetting to many things here line side ok you don’t cover how to size a maximum size line side tap ok you can’t just put any size you want on the line side , everyone know load side is 125% of the buss rating
Here is a link to one of the SquareD solar ready panel: www.se.com/us/en/product/SC2040M200PS100/all-in-one-homeline-csed-ringed-socket-100a-surface-mount-20-spaces-40-circuits-22ka-sccr-no-bypass-solar-ready/?%3Frange=60250-allinones&parent-subcategory-id=80400&filter=business-4-low-voltage-products-and-systems&selected-node-id=12368082249
![Interconnected Electrical Power Production Sources, Supply-Side Source Connections,NEC 2020 [705.11]](http://i.ytimg.com/vi/q663JECQx9U/mqdefault.jpg)
They pop meters constantly in Cali. Its wild out there.
We see that in AZ also!🤣🤦♂🤷♂
@@Redline-Electric-Solar sometimes it ain't even a journeyman 😂
Could you link or mention the product number of the square D solar ready main panel you mention in the video. Thanks
Why switch the cameras to the faces when they're pointing to details on the monitor? Video switching did not help to understand the topic here.
Sorry🤦♂
Honestly lol ruined the whole video ima dislike it just for that
supply side ABOVE the meter? w 2nd meter? Havent seen that before...
How about this: PV inverter connected line side: feed conductors to a subpanel. MSP is 200A. PV rated is 60A. Sub panel is 100A. Derating the main breaker in the MSP to 175A should be fine, right? Subpanel also has a 100A main breaker. 120% math for the main panel is satisfied. Curious if Im missing anything. Thanks!
The subpanel line side is rated for 100amp, so this is good for the 60amp tap, and the main breaker should protect from overload. Then derating the MSP (if the main bus is 200amp rated) to 175 allows a solar feed of up to 65 amps. The only thing missing here would be the protection of the solar panels themselves. If the line side to a 100 amp then there is potential that 100amp could go to the modules, e.g. ground fault, so you would need an overcurrent protection on the 60amp feed from the solar.
Could you show how to connect a generator and solar connection thru the generator transfer switch with (4) 20 amp solar array back feeder breakers?
I am not aware of an ATS that accepts solar inputs. There are, however, inverter/battery systems that accept generator inputs. Solar and Generators do not talk to each other. More information would be needed to engineer something to achieve your end goal. You in Arizona?
After I approved you pnm coop comes after me
Where can I get a line side clamp type connector? Thanks
We get these from our local suppliers- IES, CED, Elliot Electric Supply, etc...
So backfeeding means your feeding your current panel while your utility panel is feeding the same
Panel?
Correct. The Solar backfeeds at the same time your utility feeds in
Wow I didn’t think you could bring two separate voltages at the same time in a panel and create some sort of arc
@@oscar27ization You are correct in most cases! It is the inverter that matches the sine waves from the utility company or input source. There are a lot of ways it doesn't work and will create an explosion in some!
So what’s the smallest size system to install to just breakers and not use these connectors or using this panel pv ready ?
Whatever the buss rating is x 120%= the amperage maximum you can back feed.
BEST to call is supply side connection vs line side. abit jumbled here - as well.
While I understand supply line side fed design, I rather replace an older panel with a newer upgraded panel has higher buss bar current rating like the 225amp solar ready panels. Used to be a supply chain issue not anymore, I see them at Home Depot on the shelf now. Whatever panel you like so many older homes here in Phoenix 1970's panels usually too small bunch of wire jammed in them.
I know right! Some of these I wonder how they even got UL approval!!!
What you guys don't talk about is the neutral bonding in the line side connecting new fused disconnect!
My utility company says my solar installer can’t tap inside my meter box. Installer wants to use these crimping things on the wires to tie in. What is there other option?
There are some AHJs that don't allow a line side tap behind the meter. Some allow it after the meter? Your other option might be to replace/upgrade your electrical panel...🤷♂️😥
@@Redline-Electric-Solar after the meter in what location like on a breaker? inside my house or is that too small?
Before the main lugs in the electrical panel. You'll probably need an engineer to stamp for approval
How much should a solar installer charge as an adder for a line side / load side tap?
This depends on the situation, equipment type and setup, AHJ, etc... But we see an average range from $1500-$2000
$300-500. If it is just a tap you are charging for the taps themselves.
The generator has a 200 amp transfer switch and a 24KW generac generator
cameras showing their faces instead of what their pointing, at is wild. I am trying to learn not get a close up of their faces lol
🤷♂️🤦♂️ sorry
You guys are forgetting to many things here line side ok you don’t cover how to size a maximum size line side tap ok you can’t just put any size you want on the line side , everyone know load side is 125% of the buss rating
Everyone know the load side is 125%? The buss rating is the rating. 🙂
I’m your big government AHJ the utility doesn’t hook you up with out my approved sticker
Here is a link to one of the SquareD solar ready panel: www.se.com/us/en/product/SC2040M200PS100/all-in-one-homeline-csed-ringed-socket-100a-surface-mount-20-spaces-40-circuits-22ka-sccr-no-bypass-solar-ready/?%3Frange=60250-allinones&parent-subcategory-id=80400&filter=business-4-low-voltage-products-and-systems&selected-node-id=12368082249
SC2040M200PS100
Discontinued on:
Oct 31, 2023
Guys it’s not rocket science ok only 125% of buss rating for load side
Which NEC code are you referring to?
Guys sharpen up your skills max line side tap
It’s not a line side tap it’s called a supply side connection
"anything from this, that direction" (points at screen and screen is not being filmed) ... that's an editing fail
🤷♂😛
Unlicensed solar guys talking about electrical…. Cute.
Unlicenced solar guys are the worst... Good thing we have a license or we would be just like the guys commenting on our posts😜
Insulated piercing connectors to a disconnect takes 5 mins.