Hi guys,
I am new to this....I am using approx 550kw a month in electricity, and would like to get a battery and inverter solution that can be upgraded going forward with additional battery and also solar panels.
There are two units on the property (flat and main house) and we are all energy conscious already. We have already got a gas geyser in flat and also solar geyser on main hosue, so dont use any electricity there, except for a rare time when the water is too cold for a shower on the solar geyser, and we use Eskom to heat it for 30min. This is very rare...
We have a gas stove and oven in the flat, and in the main house we have gas stove and electric oven...the oven is rarely used, maybe once every 2 weeks.
Our main usage I think comes from the 1 electric kettle used 2 per day, 2 fridges, 2 microwaves, 2 washing machines (each run once per week), and a pool pump. I pay one electricity bill which is for the total electricity used on the property. Most months its around 550kw for the month, sometimes less. I think we are single phase, not sure how to tell, but the DB board looks like a regular one, nothing special about it.
During load shedding I have made use of our 7kva generator, which seems to run everything OK, but then again, I have not tried to use the oven or washing machine during that time period. I have run the pool pump with tv's, lights etc, and all is fine. We make a point of not even attempting to run the oven or washing machine while on generator and I expect we will do the same when on a battery solution.
I would like to start by just getting an inverter and battery, and then upgrading as we move forward. Would it be better to get an 8kv inverter so that its easier to upgrade in the future? Does the 5kv inverter mean that the total electricity that can be drawn at one time is 5kv? Someone told me that I can get a 5kv inverter and battery, and then get a second or third 5kv battery in the future, but I am not sure if that is the right way to do it.
I would like to be able to keep the property running for long periods when there is 4 or even 6 hours of load shedding....
I would like to add solar panels in the future, we have roof space, but am told that the old asbestos roof that they could go onto would need to be replaced first, as nobody will install panels onto that kind of roof. This would be a huge expense, so would like to start first with battery and inverter. Is it true that nobody will mount onto asbestos roofing?
I was looking at trying to get a sunsynk inverter and freedom won battery as I am told its a good combination. So is it better to start with a 5kv inverter and 5kv battery, or go straight to a 8kv inverter and a 5kv battery then add another 5kv battery later?
A lot of this stuff is confusing for me, so I am really trying to choose the right options...I do have finances to purchase, but I dont want to have unnecessary expenses or waste money when I could have done things differently from the start.
I am in the Garden route (Sedgefield), so also looking for a good supplier and installation company locally. I spoke to one gentleman who said that I must just go direct for a 10kv battery and inverter from the start, but he didnt even know what my usage is or anything....he just saw the property and probably thought it was high and we have money to spend....but I am not sure. I dont want to be ripped off, or pay for something way bigger than we need.
Ideally I would like to one day be off grid, but the guy here told me that I would still need to pay eskom 1k monthly, so I think its not really worth it since the bill is not much more monthly anyway.
Any advice for me would be appreciated. Thank you kindly.