PVfarmer
Senior Member
- Location
- Newport County, Rhode Island, USA
thanks. got it.
thanks. got it.
I'm also using a program I paid for, but not sure about saying "hey try this it's great"...is that OK on this forum?
I did say single phase 120/240 in the first post, but now I know it's single phase three wire 120/240.
The service is being upgraded because it (at 25kVA) can't handle 60kW of 480/277V.
It is sort of a concern because the POCO isn't paying for the xfmrs, BUT they might be able to get a better price on something...better, if that makes sense.
Tripowers are nice because you can:
1. Go with close to 800V DC or use the same panels, cut the strings in half and run at close to 400, and they work just as well either way. Which is handy, say you have a spot with a weird amount of panels, they're a lot more "adjustable", it seems.
2. The company's overall setups are pretty simple, and make sense (somewhat) to me, who is somewhat new to this.
3. It seems like you can overload them with panels like crazy, and they love it, which is good for the solar conditions around here.
thanks. got it.
MV = Medium Voltage, i.e., 12470/7200V in this case.
I'm also using a program I paid for, but not sure about saying "hey try this it's great"...is that OK on this forum?
The existing service, as you told us in the first post, is 240/120 split phase. You are considering asking them to change your service to 3 phase 480/277 because it suits your desire to use Tripowers. (Why do you want to use those? I'm still not exactly sure.)
What transformer(s) they use to bring that to the service point pretty much doesn't need to be your concern.
I did say single phase 120/240 in the first post, but now I know it's single phase three wire 120/240.
The service is being upgraded because it (at 25kVA) can't handle 60kW of 480/277V.
It is sort of a concern because the POCO isn't paying for the xfmrs, BUT they might be able to get a better price on something...better, if that makes sense.
Tripowers are nice because you can:
1. Go with close to 800V DC or use the same panels, cut the strings in half and run at close to 400, and they work just as well either way. Which is handy, say you have a spot with a weird amount of panels, they're a lot more "adjustable", it seems.
2. The company's overall setups are pretty simple, and make sense (somewhat) to me, who is somewhat new to this.
3. It seems like you can overload them with panels like crazy, and they love it, which is good for the solar conditions around here.