Rednecktek
Solar Wizard
OK guys, I'm looking at doing 2 systems and I'm torn between the MPP and the Growwatt versions. The Growatt has a definate price premium over the MPP and I'm curious what more I'm getting for that price premium?
Both systems will be on FLA or AGM batteries for whatever that's worth and purchased from Watt247.com.
System 1: 12v or 24v for lighting up my garden and storage sheds
MPP 1012LV-MS for $425
1000 VA / 1000W Inverter ·
12V DC to 120V AC ·
40A MPPT (maximum power point tracking) · – can be overpaneled up to 800W (Charging watts is controlled by the battery current setting)
120V Genset /Generator or Utility input to charge the 12 V battery at 20A
VS
PowMr 3000w Solar Inverter for about $550 or 3x the power for 25% more money (I know, it's a joke but could be a fun "toy" to play with)
VS
Roll-Your-Own for about $150
1000w inverter, 60a MPPT (already have), 20a battery charger to utility power (already have). more work and more space for the components
System 2: My off-grid neighbor's whole house
MPP 3048LV-MK for about $690
3kW 120Vac 60Hz Pure Sine inverter output
48v DC to 120v AC
80A MPPT Charge controller , up to 4Kw of Solar input (60 to 115V DC Vmp)
Expandable up to 9 units
VS
Growatt SPF 3000TL for about $800
1)3000 W Pure Sine wave output expandable up to 6 units (18 kW)
2) 4.5kW MPPT Solar Charge controller
3) 60A 48V Utility Battery Charger (In case your battery level falls below your set point)
4) UPS function, wire it to the Utility power, if battery power is too low, the system automatically switches the load to Utility power
5) Single 120V 60Hz , Split phase (120V – 0 – 120V ) and 3 phase capable (includes parallel board for each unit)
6) Pure Sine wave output expandable up to 18 kW
So, what makes the Growatt worth the extra $100? It looks like the Growatt has another 500w of panel capability, but I'm not sure that's worth the money.
Your thoughts/suggestions/experiences?
Both systems will be on FLA or AGM batteries for whatever that's worth and purchased from Watt247.com.
System 1: 12v or 24v for lighting up my garden and storage sheds
MPP 1012LV-MS for $425
1000 VA / 1000W Inverter ·
12V DC to 120V AC ·
40A MPPT (maximum power point tracking) · – can be overpaneled up to 800W (Charging watts is controlled by the battery current setting)
120V Genset /Generator or Utility input to charge the 12 V battery at 20A
VS
PowMr 3000w Solar Inverter for about $550 or 3x the power for 25% more money (I know, it's a joke but could be a fun "toy" to play with)
Max.PV open circuit voltage | 100Vdc |
PV operating voltage range | 35-100Vdc |
MPPT voltage | 35-95Vdc |
Max. PV Input Power | 1600W |
Max.PV Input Current | 40A |
Max.PV output power | 1400W |
VS
Roll-Your-Own for about $150
1000w inverter, 60a MPPT (already have), 20a battery charger to utility power (already have). more work and more space for the components
System 2: My off-grid neighbor's whole house
MPP 3048LV-MK for about $690
3kW 120Vac 60Hz Pure Sine inverter output
48v DC to 120v AC
80A MPPT Charge controller , up to 4Kw of Solar input (60 to 115V DC Vmp)
Expandable up to 9 units
VS
Growatt SPF 3000TL for about $800
1)3000 W Pure Sine wave output expandable up to 6 units (18 kW)
2) 4.5kW MPPT Solar Charge controller
3) 60A 48V Utility Battery Charger (In case your battery level falls below your set point)
4) UPS function, wire it to the Utility power, if battery power is too low, the system automatically switches the load to Utility power
5) Single 120V 60Hz , Split phase (120V – 0 – 120V ) and 3 phase capable (includes parallel board for each unit)
6) Pure Sine wave output expandable up to 18 kW
So, what makes the Growatt worth the extra $100? It looks like the Growatt has another 500w of panel capability, but I'm not sure that's worth the money.
Your thoughts/suggestions/experiences?
Last edited: