but do you really bother ?

nowadays a lot of ppl have solar panel + grid tie inverter (from China) , total setup cost for 500W is around RM1.3k , just use to offset power consumption, is not to power your whole house.

Yes but you will need to get contractor to do for u. Price is RM1.343 per kWh generated.

Malaysia has around 3.5 sun hours per day, you x your solar panel output and calculate from there.

u want offset or completely off grid ?

power consumption normally day or night ? got graph of usage with peak ?

normally this kind of question very open ended and u need consultation , i am DIY and wont do it for you.

battery sizing depend very much on your projected consumption , and also how much u willing to spend for panel and setup.

But off the top of my head u need 5-6kW setup to go completely off grid.

This post has been edited by spacelion: Mar 4 2020, 01:55 PM

but i wasnt replying to TS

its just offset only. dont plan to scale much. right now am experimenting with DIY battery bank then later on try implement my uni MPPT project ... but I feel right now COTS MPPT is more than enough rather than my own outdated program

This post has been edited by spacelion: Mar 4 2020, 02:12 PM

i am , but that battery pack is a bit too much for me right now, i still have to play with BMS first. And BMS is pretty costly , a 16 cell BMS is roughly 1k and then slaving each pack to a main BMS is another level of complexity