Hey everyone, I'm so glad I found a place like this. I thought I knew some about electricity/solar but the more I started looking into putting together a legit system, it seems to just get more and more complicated! I've watched a lot of Will's videos and have ordered his book but it's not here yet so if anything I'm asking about is in pretty clear in there, just tell me to go read the book.
So I'm trying to spec out a partial home 48V system to back-up the essentials: water well (240V), 2 fridges, 1 chest freezer, some lights, and *maybe* the central heat system if I can control that it won't run at the same time as the well.
I'm currently thinking of the following as a start since I would like to get the system in before this winter and can add to it early next year if need be:
Battery: Either
1 Jakiper 48V 100Ah JK48V100 LiFePO4 (https://jakiperbattery.com/product/jk48v100/?ref=h-cvbzfahsek). Is this one any good? Will has it on his website but it's almost too cheap and makes me worry that you get what you pay for.
or
1 48V 100Ah LiFePower4 Battery by EG4 (https://shop.signaturesolar.us/products/48v-100ah-lifepower4-battery-by-eg4)
Thanks to comments pointing out they cannot be put in series I will not be using the
4 HQST 12V 100Ah LiFePO4 in series (https://www.amazon.com/dp/B08XMB96P4/ref=emc_b_5_i)
Battleborn batteries in series are also an option but are at least twice as expensive so are not first choice.
MPPT/Inverter:
5kW Stackable 48V 240VAC 100A 450VDC Off-Grid Inverter by Growatt (https://shop.signaturesolar.us/products/5kw-48w-240vac-80a-off-grid-inverter-by-growatt)
I currently have 4 12V 100W Renogy Monocrystalline (https://www.amazon.com/gp/product/B07GF5JY35/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1) that I would put in series and am planning to get as many: Either
440W 72Split-Cell Silver Mono Solar Panal by Solarever (https://shop.signaturesolar.us/products/440w-black-mono-60-cell-panel-by-solarever)
as I can with the budget I have left after the batteries and MPPT. Would 1 of these be able to charge the system or would I need at least 2 in series?
or
360W Black Mono 60 Cell Panel by Solarever (https://shop.signaturesolar.us/products/360w-black-mono-60cell-panel-by-solarever)
Ideally I would like to set up Solar, Battery, and Grid (from a breaker in my main panel) into the Growatt and have it feed the loads I want to back up through a sub panel. If I could program the Growatt to run off Solar as much as it can and supplement with grid power normally in order to reduce my electric bill and switch to solar+battery if the grid were to go out.
Sorry, I know this is a lot all at once for my first post. I'm kind of overwhelmed myself! It's not the "By some panels, a controller, and some batteries and hook them all together..." situation I thought might boil down to after having played with My First 12V Solar Kit©. Thanks in advance for any input/help!
So I'm trying to spec out a partial home 48V system to back-up the essentials: water well (240V), 2 fridges, 1 chest freezer, some lights, and *maybe* the central heat system if I can control that it won't run at the same time as the well.
I'm currently thinking of the following as a start since I would like to get the system in before this winter and can add to it early next year if need be:
Battery: Either
1 Jakiper 48V 100Ah JK48V100 LiFePO4 (https://jakiperbattery.com/product/jk48v100/?ref=h-cvbzfahsek). Is this one any good? Will has it on his website but it's almost too cheap and makes me worry that you get what you pay for.
or
1 48V 100Ah LiFePower4 Battery by EG4 (https://shop.signaturesolar.us/products/48v-100ah-lifepower4-battery-by-eg4)
Thanks to comments pointing out they cannot be put in series I will not be using the
4 HQST 12V 100Ah LiFePO4 in series (https://www.amazon.com/dp/B08XMB96P4/ref=emc_b_5_i)
Battleborn batteries in series are also an option but are at least twice as expensive so are not first choice.
MPPT/Inverter:
5kW Stackable 48V 240VAC 100A 450VDC Off-Grid Inverter by Growatt (https://shop.signaturesolar.us/products/5kw-48w-240vac-80a-off-grid-inverter-by-growatt)
Solar:I currently have 4 12V 100W Renogy Monocrystalline (https://www.amazon.com/gp/product/B07GF5JY35/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1) that I would put in series and am planning to get as many: Either
440W 72Split-Cell Silver Mono Solar Panal by Solarever (https://shop.signaturesolar.us/products/440w-black-mono-60-cell-panel-by-solarever)
as I can with the budget I have left after the batteries and MPPT. Would 1 of these be able to charge the system or would I need at least 2 in series?
or
360W Black Mono 60 Cell Panel by Solarever (https://shop.signaturesolar.us/products/360w-black-mono-60cell-panel-by-solarever)
Ideally I would like to set up Solar, Battery, and Grid (from a breaker in my main panel) into the Growatt and have it feed the loads I want to back up through a sub panel. If I could program the Growatt to run off Solar as much as it can and supplement with grid power normally in order to reduce my electric bill and switch to solar+battery if the grid were to go out.
Sorry, I know this is a lot all at once for my first post. I'm kind of overwhelmed myself! It's not the "By some panels, a controller, and some batteries and hook them all together..." situation I thought might boil down to after having played with My First 12V Solar Kit©. Thanks in advance for any input/help!
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