Be aware that after 8-10 years your inverter will blow up they cost about £5-6,000 in the UK so probably even more expensive in Thailand?
Also that solar panels work in series so the whole array will only perform to the lowest performing panel,or if one stops working they all stop working.
For the earlier posts regarding using the majority of electricity at night that is what lithium ion batteries (x 2) are for to store the electricity produced in the day,that will require another inverter also to convert DC to AC cost around £5-6,000 in Britain.
Plus there are plug ins available to make the panels work in parallel meaning they all perform separately to the best of their abilities,they are about £80 per panel in the UK so probably again more expensive in Thailand?
Morale of the story : Being green ain’t cheap!