Pink7

Build smart so you get a well insulated home who is easy and need low energy to keep cold. Also use inverter electronics for Ac ref etc. Pink

Consider a quality aircon with Inverter. I use to run my whole home at 1000 kw/h or so with 18k btu running + 2 large refrigateors/freezers ( with inverter) + 1-2 tc + 1 to 2 pc ++. Count in the high startup power needed but after that power usage is not high with a quality units. I use Mitsubishi Electric mr slim 18BTU Pink

So at this time in getting 4000 Watt level as max, the he time I installed my max level was 7000 watt. This time of the year my one roof side perform better because of the sun position and im just able to get needed power per day so I might after a years experience with all seasons should consider some more panels. I do plan a cleaning pf panels very soon but lets see how much that will improve. I noticed i produce about same in light cloudy weather as in full sunny weather. Pink

Nice Numbers. Happy New Year too. Pink

My vote goes to location B. I have do a DIY offgrid setup with 30kwh batteries and 9-10kw capacity for 300K. If you do 3 x inverters in parallel then x2 and for example 2 x 30kwh batteries that setup with a backup generator you should be good. Btw I saw in another tread prices on SPF5000ES very good in Thailand now, they great to parallel setup. Regards Pink

Yes I have one of those large oval black ones used when building so it will be fine for this. I was not sold as a set but i picked the items i wanted. I payed just over 1kthb delivered. Pink

After some searching I found an expandable aluminum window cleaning equipment on Lazada that I want to try. Max 4.5m the one i ordered. Pink

That was a good price on the Growatt Inverter you got. Where you buy? Good luck with the project. Pink

+1 Yes I agree on all you mention. Pink

Yes that was a important part of my whole plan for batteries, inverters and BMS etc to run everything on moderate capacity and not push any limits for longest possible life of the setup. My guess is that my mid level brands equipment do not have same ability to run near limits over same time as more costly brands. Pink

I have Lifep04 280a 3.2v cells. From the numbers on JK BMS i see i average have around 60%/150-160A capacity left in morning per battery. I have 2 batteries with 16 cells each. Pink

Yes your panels do look easy to clean. Charged before lunchtime is great. This time i have 80% or so of the capacity i had some months back before sun turned more to the other side here but still doing ok. So now fully charged an hour or two after lunch time on a average day. Pink

The material of this type cleaner seems to be gentle and very suited for solar cleaning. We cleaning from a ladder so i need it 4-5meter or so. So a diy extender could be the solution. Pink

Thanks allot.. exactly the kind of feedback i hoped for. Where did you buy your cleaner? Pink

Yes google is a great tool for anything. I still think its interesting to get suggestions and views from the forum members here and also try contribute with some content here. My Solar project would never been a reality to get up an such a successfully way if it was not for this forum and its members. When Im thinking about, it my project is quite big as fist timer solar DIY for someone who not even been near a solar panel before. So let me use this opportunity to THANK to all forum members who contributed with advises. info and help to this project. Pink

Cleaning day today of may panels. They started to look dusty so we just try trow some soap water from the ladder the shower of the soap with the garden hose. I guess there is better tools for this like a tool to to swipe the panels? Pink

My setup is 9kwh panels with 2 x 5kwk growatt inverters and 30kwh battery. All at 300K. Im very happy to have DIY it so i know how its build and how its working so im able to maintain it myself. Its was also quite cost effective. Pink

Just so it will be correct and same as posted other places: Total was just under 31thb Pink

My first fully billed month ended up at just under 31thb. It was one utit electric the rest was fee. Pink

Got my first full month electric bill after going solar: Billed for 1 unit ( +fee) 38 bath. Btw very goos to see aseanow back online. Pink

Some days ago I fully charged both batteries then I calibrated my both JK BMS voltages and I Temporary edited the over voltage protection to a lower value so it be triged and to "help" the BMS to understand this wast the 100% left capasity level. After that the 2 BMS been as in sync and all good. Pink

Be aware that 3 x electric showers might not be able to be used in same time from a inverter capacity of for example 10kwh. I have 2 x 4500w showers but we not use in same time and i not run them on very high power(heat) If I had redo it I had built a sun heated solution. One alternative could to connect your showers to grid and not to the inverter. Pink

Got both batteries charged up today and noticed: Both batteries complete charge in same time ( one with 99% and the other with 97% state of charge) Batteries have exact same voltage when checking with multi-meter. Some differences on the values with BMS. Then inverters show 0.4v more than multi-meter. So all in all not to bad at all but i will do some calibrating of voltage and try reset/recalculate state of charge on the 97% battery.

I used long time to choose my inverters and ended up with 2 x Growatt spf5000es at 27k or so each delivered on my door. You can save a few thousand going cheaper but for me Growatt was the best value deal from my research. I planed this for last long time so i not push any limits and have a bit more capacity than needed. My solar input is 270v and my near 10kwh panels at it most does 7kwh. First i had the idea to do in 2 or 3 steps but then I conclude that for me much better to get it all ups in one project. All In all I spent more or less exactly 300k for all ( 30 kwh batteries included) Pink

Thanks for the info. I will just get both batteries charged back up to full status if the weather hold up. Pink