A.Fenderson
noob
Noob here. I have been watching tons of Will's videos, and doing some reading here and in his book, but I have little prior experience with solar or electrical in general.
I would like to put together a system that accomplishes each of these goals:
* starts minimally small (due to budget and PV-install space constraints)
* modular and expandable (available PV-install space is anticipated to increase)
* components qualify for the Residential Clean Energy Credit
* interfaces to my home's main panel as a generator would, going through a manual transfer switch with per-circuit switches and breakers for each of my six 20Amp/120V circuits
* to the fullest extent possible, allows me to do the labor myself
Here are the initial components from each category I've researched that top their respective lists:
PV modules:
Eco-Worthy US-L02M195TM-1
key specs:
* 195W
* bifacial
selection rationale:
* I already own one that I purchased this year
* they sell and ship single units
* bifacial is ideal to maximize my current very limited install space
MPPT charge controller:
BougeRV BV4820CUK / ISE244
key specs:
* buck-boost circuitry enabling wide 12V to 145V PV input range
* 20A charging
selection rationale:
* allows maximum flexibility in number and type of panels for small system
Battery:
LiTime 48V (51.2V) 60Ah Lithium Golf Cart Battery, 120A BMS, 3072Wh Energy
key specs:
* the name pretty much covers it
* "BORN FOR GOLF CART"
selection rationale:
* literally the smallest, cheapest (though potentially non-trash) battery with the required capacity to qualify for the Residential Clean Energy Credit
Battery:
EG4 LiFePOWER4 5120Wh server-rack battery
key specs:
* 48V nominal & >3kWh
selection rationale:
* good reputation and bang-to-buck ratio
* easy to add one-at-a-time to a system
* exceeds minimum 3kWh requirement for applicable federal tax credit
cons:
* not born for golf cart
Inverter:
Victron MultiPlus-II 48/3000
key specs:
* 2400W continuous output at 25°C
* AC charging generator/mains input for emergency-charging
selection rationale:
* low power consumption in zero-load (11W) or zero-load/search (4W) modes
* up to 95% efficient
* good brand reputation
* upgrade path: parallel 2 units for 240V split-phase output
* Will said to go big on the inverter so you're not constantly upgrading
Transfer Switch:
Nature's Generator HKNGPTKEL
key specs:
* 6x120V circuits, each with 3-way manual generator/off/line switch
selection rationale:
* 240V compatibility not needed initially
* only 6-circuit, single 120V input full manual switch I could find
Thanks for your time!
I would like to put together a system that accomplishes each of these goals:
* starts minimally small (due to budget and PV-install space constraints)
* modular and expandable (available PV-install space is anticipated to increase)
* components qualify for the Residential Clean Energy Credit
* interfaces to my home's main panel as a generator would, going through a manual transfer switch with per-circuit switches and breakers for each of my six 20Amp/120V circuits
* to the fullest extent possible, allows me to do the labor myself
Here are the initial components from each category I've researched that top their respective lists:
PV modules:
Eco-Worthy US-L02M195TM-1
key specs:
* 195W
* bifacial
selection rationale:
* I already own one that I purchased this year
* they sell and ship single units
* bifacial is ideal to maximize my current very limited install space
MPPT charge controller:
BougeRV BV4820CUK / ISE244
key specs:
* buck-boost circuitry enabling wide 12V to 145V PV input range
* 20A charging
selection rationale:
* allows maximum flexibility in number and type of panels for small system
* the name pretty much covers it
* "BORN FOR GOLF CART"
selection rationale:
* literally the smallest, cheapest (though potentially non-trash) battery with the required capacity to qualify for the Residential Clean Energy Credit
Battery:
EG4 LiFePOWER4 5120Wh server-rack battery
key specs:
* 48V nominal & >3kWh
selection rationale:
* good reputation and bang-to-buck ratio
* easy to add one-at-a-time to a system
* exceeds minimum 3kWh requirement for applicable federal tax credit
cons:
* not born for golf cart
Inverter:
Victron MultiPlus-II 48/3000
key specs:
* 2400W continuous output at 25°C
* AC charging generator/mains input for emergency-charging
selection rationale:
* low power consumption in zero-load (11W) or zero-load/search (4W) modes
* up to 95% efficient
* good brand reputation
* upgrade path: parallel 2 units for 240V split-phase output
* Will said to go big on the inverter so you're not constantly upgrading
Transfer Switch:
Nature's Generator HKNGPTKEL
key specs:
* 6x120V circuits, each with 3-way manual generator/off/line switch
selection rationale:
* 240V compatibility not needed initially
* only 6-circuit, single 120V input full manual switch I could find
Thanks for your time!
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