I have a full solar system on my home. About 9000 watts. I have a shed with a dedicated breaker to my home. I wanted to get a small plugin grid tie inverter and 2 to 4 panels to put on the roof of the shed. Any suggestions would be greatly appreciated.
Small Grid Tie Suggestions
- Thread starter Darksolar
- Start date
Thanks for the reply. I was planning on adding maybe a total of another 800 watts from the shed but I am open to suggestion especially if I can grow it over time. Since I have solar on the house and a two way electrical meter I thought adding some more power from my shed roof would be a good project and a way to expand my solar myself.
To determine the inverter that you need, the panel voltage is one of the factors.
Odds are your home system is using large 300watt size panels. If you want to add to your system, I would consider a grid tie micro inverter(s) and more large panels. Large panels are cheap per watt if you can get them without shipping costs. Maybe look for some used ones local to where you live.
You will be better with a real grid tie production type inverter than a plug into the house wall socket type. Something like this should be considered. If you have 240v in your shed, you can add a small breaker box (if you don't have one), then wire 240v to your panel mount, and wire in a micro grid tie inverter, or a string of them. There are several on the market that will work without special monitoring or communication equipment. Just plug and play.
Odds are your home system is using large 300watt size panels. If you want to add to your system, I would consider a grid tie micro inverter(s) and more large panels. Large panels are cheap per watt if you can get them without shipping costs. Maybe look for some used ones local to where you live.
You will be better with a real grid tie production type inverter than a plug into the house wall socket type. Something like this should be considered. If you have 240v in your shed, you can add a small breaker box (if you don't have one), then wire 240v to your panel mount, and wire in a micro grid tie inverter, or a string of them. There are several on the market that will work without special monitoring or communication equipment. Just plug and play.
Danny
Solar Enthusiast
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You may want to use the Enphase iq7a micro inverter. I have several videos of my project. Here is the electrical installation
. Here is the micro inverters. https://www.altestore.com/static/datafiles/Others/Enphase_IQ7A_Datasheet.pdf Larger panels were better in my case. Here is a play list of my install with other videos I used https://www.youtube.com/playlist?list=PLCal7Co3mAHSR5tg48M8NGKBcjBso8Wle
If you are already feeding a 40A system into your mains panel you likely need to check your service. If they landed the backfeed in your panel and you have only 200A service you could only safely add 600w and would need to combine them in a sub or something and feed that 40A breaker. Unless they did it line side or you do your new one line side.
