Hello - I’m wondering if you could tell me if the system outlined below is a good quality/size set up for an off grid home in alpine Victoria that has a house of approx. 170m2 internal area and a cottage of approx. 100m2 internal area. Also, if the age of the set up means we would need to replace certain elements in the next few years. Any feedback would be very useful - thank you in advance.
Batteries: 12 x 2volt 1500 Ah Hoppecke 12 OPzV Solar batteries (Gel)
Inverter/charger system are all Out Back Power Systems products
2 x VFX3024E Inverter/Charger, Continuous power rating at 25C ambient is 3000VA (so total of 6000VA)
1 x Fleximax 60 Charger controller
1 x Fleximax 80 Charger controller
1 x Out Back Power Systems Mate system controller and display
1 x Out Back Power Systems Hub 10.3
1 x Outback Power Systems FLEXnet DC
The Hub, Mate and FLEXnet are used for monitoring, controlling and programming the system.
A total of 3500 watts of solar panels consisting of 8 x 190 watt panels (through Fleximax 60) and 8 x 250 watt panels (through Fleximax 80)
We use 2 x Honda 20i sine wave inverse generators to recharge batteries when needed.
When the system runs the house only we essentially have 3 days of power storage from the batteries. Even an overcast day will generate power from the panels keeping the batteries above 90% nominal charge, we try to not go below 80% state of charge as this is most beneficial for the batteries.
The system is approx 10 years old.