Hi I am considering install a Solar panel system, and got a few quotes:
Got a few questions, mainly due to the differences between the solutions they provided, and each one state that they provide the most suitable solution for me.
1. Hot water timer vs Power diverter?
Some suggested the diverter solution and the timer solution for hot water heating as a cheap alternative, but one odd one suggest timer solution over diverter as he said people complains that the diverter solution can cause the water not been heat sufficiently during winter. Not good if that is true! I am consider a system with roughly 4 kW panel output, unfortunately, it is not all facing north, will be spreed across east, north and west.
2. 3 kW inverter for a 3kW plus panel output?
As the panel as spread across multi directions, one quoted my a 3kW converter as it can handle up to 4.5 kW output which is exactly the maximum output I am looking at for a premium LG panel solution(320 watt per panel), so it should be fine I guess? But I think I am going to throw 5 kW inverter upgrade for future proof as I am consider install battery in few years, it is too expensive to make finical sense at the moment.
3. Panel optimizer or not?
When provide quote, some mentioned panel optimizer, and one don't think I will get best result without using it, at 100 bucks each, it will add about 1500 over the installation cost, how much difference it will make? I am going to look at the data sheet he provided, but real world difference?
4. Smart meter installation?
One does mentioned an optional smart meter installation so that I can see my power usage, otherwise without it, I can only see my solar output. Which is fine as some may not bother to tell that cost upfront, but a $1400 for a smart meter to see my power consumption ( he did mentioned that as my power switch board is full, that's why it's expensive, maybe?)? What's the difference between the one I got from my current power provider?
Not sure more research myself going to help much, so just throw my questions over the forum.