Good day
My first post here
I have had 12v systems for 8 years now, running a few appliances and computers fairly successfully
However, the time has come to build something for my co3 laser cutter, i have been to a few local companies, but not a single one has really listened to my need and all quoted on a generic household setup with lots of battery and very little panels
I would like to use mostly pv as we usually work office hours and the weather is fairly good. On the bad weather days eskom will have to do, if available
My loads are:
Laser 770w
Chiller 450w
Extractor fan 750w currently, but will buy a new one at 150w odd
Computers 200w max (on a separate 12v system with solar)
Only the fan has a big start up current,(16A on 230V)therefore it will be replaced, the chiller probably also has a spike, but my clamp tester does not register it
I have thus far purchased a few good used items
48/3000 multiplus 1
250/100 mppt
My question is, how big battery and how many panels should i install?
Obviously keeping budget in mind
Thinking was to overpanel and to "under" battery , hence the big mppt allowing me to almost work directly off the pv.
Was thinking 2500 to 3000w of panels with a 48/50Ah battery for now , with the ability to add batteries if needed later