AZ Off-Gridder
New Member
- Joined
- Nov 25, 2021
- Messages
- 139
Hey there fellow Solar lovers. I’m in the planning phase of my off grid solar setup and this is fortunately my 2nd time around the block. In late 2019 many of you helped me (Arizona Off-Grid, lost my account login) build a very budget very simple build and I lived off grid in a camper trailer for 9 months and I loved every bit of it. Life circumstances changed and I sold the property and entire setup…. Long story short I’m starting over now and this time I have a better understanding, and a better budget!
Just for some more background information The off grid home will be a tiny house made out of company built shed. 14ftx32ft insulated with spray foam.
(Edited after learning more…)
Im looking at getting 12 250w SanTan T Series (used snail trails they call them, small cosmetic blemishes on used panels but all tested and pass CC) they sell for $50 each!
Panel details: 60 cell Polycrystalline
250W. VMP 30.3V. MPC 8.27A
Wired into 4 parallel series of 3
Giving me 90.9V at 33.8A = 3,007W -15% for lose from used panels (Thanks Bvillebob!!) so 2,555wh from 12 panels
15.3kwh per day. Not sure if this will be large enough for this setup after learning about my calculation errors. Thoughts?
I want to pair this with 3 of Signature Solars EG4 48V 100AH Batteries. Wiring these big batteries in parallel. For a total bank of 15.36KWh. Or how does the Jakiper battery compare?? Looks very similar in specs….
Next is the inverter, after having an all in one unit before I really loved it, so I want one for this build. I’m looking at the Growatt 48V 3000TL LVM 3kW or
Renogy 48V 3500W. If anyone has any input to what one would be better for my setup, I do know the EG4 battery uses a Growatt BMS is there any benefit to that matching up with the Growatts Inverter?
Please let me know if my math is wrong and if this sounds like a balanced setup. It would cost me around $6,500
And I know this post is lacking what my usage is, that’s because I hate calculating it, that’s something I still struggle with I’ve done so many calculations and adding up. And my numbers are always so high I just know they’re inaccurate. So instead I’m laying out the proposed build, and y’all tell me if you think it’s solid and would run a tiny home in the Arizona High desert. Or maybe if need be we can work out my power consumption needs. Thanks for reading yall.
Just for some more background information The off grid home will be a tiny house made out of company built shed. 14ftx32ft insulated with spray foam.
(Edited after learning more…)
Im looking at getting 12 250w SanTan T Series (used snail trails they call them, small cosmetic blemishes on used panels but all tested and pass CC) they sell for $50 each!
Panel details: 60 cell Polycrystalline
250W. VMP 30.3V. MPC 8.27A
Wired into 4 parallel series of 3
Giving me 90.9V at 33.8A = 3,007W -15% for lose from used panels (Thanks Bvillebob!!) so 2,555wh from 12 panels
15.3kwh per day. Not sure if this will be large enough for this setup after learning about my calculation errors. Thoughts?
I want to pair this with 3 of Signature Solars EG4 48V 100AH Batteries. Wiring these big batteries in parallel. For a total bank of 15.36KWh. Or how does the Jakiper battery compare?? Looks very similar in specs….
Next is the inverter, after having an all in one unit before I really loved it, so I want one for this build. I’m looking at the Growatt 48V 3000TL LVM 3kW or
Renogy 48V 3500W. If anyone has any input to what one would be better for my setup, I do know the EG4 battery uses a Growatt BMS is there any benefit to that matching up with the Growatts Inverter?
Please let me know if my math is wrong and if this sounds like a balanced setup. It would cost me around $6,500
And I know this post is lacking what my usage is, that’s because I hate calculating it, that’s something I still struggle with I’ve done so many calculations and adding up. And my numbers are always so high I just know they’re inaccurate. So instead I’m laying out the proposed build, and y’all tell me if you think it’s solid and would run a tiny home in the Arizona High desert. Or maybe if need be we can work out my power consumption needs. Thanks for reading yall.
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