YAY!!! Today is the first test of my Off-grid backup power system. The clouds parted and full sun was available so I decided now was the time to flip the switches.
I turned off the main breaker for the power input to the house. I turned off the water heater because it draws more power than I’m set up for. Everything else is on.
I switched the solar input to the Growatt 6KW off-grid inverter and turned it on.
I flipped the input breaker and the inverter sprang to life. I then went into the house and as expected, everything was running. I am COMPLETELY off the power grid!!! Power independence!
This is only the primary test. I think I’ll let it go either until I go to bed or the battery runs out which is highly unlikely since I have 4.8KWH of battery storage and it should still be full at sundown.
More to come later. Stay tuned for further updates and tours of the system. I’ll probably make a video as well. So exciting!
Resuts:
I’ve been experimenting with the system for two days now and have learned much. On a sunny day, the available power is virtually infinite during daylight hours. I’ve tried everything except the water heater and still end up with a full battery at sundown.
I learned on the first day that cooking in the evening using battery power will eat it up pretty quickly. It’s best to do all cooking and high current draw jobs while the sun is shining. After cooking a meal using an air fryer oven, microwave, and an induction cooktop, the battery only made it a few hours after that before I had to switch back to grid power.
On day two, I made dinner earlier and had a full battery at sundown. I was tired of messing around so I switched back to grid power at sundown. I’ll do an overnight capacity test another time.
I’ll also need to do a cloudy day test. The 1600 watt solar array maxes out around 500 watts on a cloudy day so input will be diminished.
It’s good to do these tests in advance to get to know the system in order to be prepared for managing power in the case of a long-term outage. I plan to write instructions for each situation because I can’t be expected to remember things, especially during an unpleasant event.
So good so far. More testing to come.