mcmullen7242
New Member
I have 6 solar panels and 2 3.8kw battery packs from bigbattery sitting around. I own a farm and have a greenhouse that needs ventilation running 24/7 and have been running it on a small honda 2000 generator for quite some time. I am hoping to put the panels and one of the batteries to use in order to dodge running the generator during sun hours. No matter what at night between the fans and lights i will not be able to have enough battery storage on my budget so the generator will be running when the sun is down. I need 120v power.
I need an inverter and was going to go with this Growatt 3000 with 250VDC:
My panels stats are: (i have 6)
365 watts
V at Pmax:39.3 V
Current at Pmax: 9.29amps
OCV: 48.0V
SCC: 9.74 amps
Max series fuse rating 20 amps
Max system voltage 1500V
My battery is the 48v version of this and i was going to program the following into the charger (56.5V for absorb, 58V for HVD, and 49V for LVC)
My questions are:
1) With the inverter/charger having a 250VDC instead of 150VDC can i put all 6 panels in series because the Pmax is 39.3V each which would add to 235.8V or do i have to put 3 panels in series and another 3 in series, then parallel them together with an mc4 connector because of the OCV being 48V?
2) What type/gauge wire should i use for going from the solar panel mc4 connector to the inverter/charger and also from the battery to the inverter/charger?
the solar system will be powering a fan that ranges from 400watts-1500watts depending on temperature and also a water pump that is 300 watts that will only be on during watering of the plants (about 1-2 hours).
I need an inverter and was going to go with this Growatt 3000 with 250VDC:
SPF 3000TL LVM-ES 3kW 120V 250V Solar Voltage, 48V Battery parallel
SPF 3000TL LVM-ES 3kW 120V, 120 to 250V Solar Voltage, 48V Battery OPTIONAL (batteryless), up to 6 in parallel for single , split or 3 phase output growatt BEST SOLAR FOR HOME PEROVSKITE INVERTERS FOR PHONE PHOTOVOLTAIC DC TO AC INVERTER SOLAR ROOF JACKERY 1000 1KW 1000W SOLAR SUN POWER SOLAR...
www.signaturesolar.com
My panels stats are: (i have 6)
365 watts
V at Pmax:39.3 V
Current at Pmax: 9.29amps
OCV: 48.0V
SCC: 9.74 amps
Max series fuse rating 20 amps
Max system voltage 1500V
My battery is the 48v version of this and i was going to program the following into the charger (56.5V for absorb, 58V for HVD, and 49V for LVC)
My questions are:
1) With the inverter/charger having a 250VDC instead of 150VDC can i put all 6 panels in series because the Pmax is 39.3V each which would add to 235.8V or do i have to put 3 panels in series and another 3 in series, then parallel them together with an mc4 connector because of the OCV being 48V?
2) What type/gauge wire should i use for going from the solar panel mc4 connector to the inverter/charger and also from the battery to the inverter/charger?
the solar system will be powering a fan that ranges from 400watts-1500watts depending on temperature and also a water pump that is 300 watts that will only be on during watering of the plants (about 1-2 hours).