Can install afterwards.

You can try contacting this company, https://www.spm.com.my/
They installed the installed the solar system at my parents house.

Can reduce the bill to zero?

If got the money plus with the solaris rebate, definitely a decent investment.

He said nem no good , not enough profit margin 🤦. Hybrid system is good but parts like inverter and especially the batteries will eat up those cost.

Still rm22k for 2.4kwp system with "used" panels is expensive. Better just go nem with that budget and get solaris rebate also.

Agree, monofacial is more than enough for normal Malaysia roof. Not saying you shouldn't choose bifacial but if the cost can be put on getting more efficient panels and inverters , then it's abit of a better investment i suppose.

Worth it, you get decent panels and inverter aswell.

After the rebate, the total cost would only be around rm24k.

Since they're giving you the huawei inverter, try asking them first whether the inverter is in stock or not?

If you live at kl or Selangor, current weather is a bit unpredictable at the moment, lots of clouds on certain days which can hamper your solar generation.