How rooftop solar actually sells in Thailand
The enquiry starts with an electricity bill, not a product question
A Thai homeowner or factory manager rarely asks about panel brands first. They photograph last month's bill, send it on LINE, and ask what the saving would be. Answer the same day and you get the survey; answer on Thursday and you are quoting against installers who already stood on the roof.
Two very different clocks: a townhouse and a factory roof
Residential deals in Bangkok and the provinces move in weeks and turn on payback and hire purchase. Commercial rooftops around Rayong and Chonburi move in months, pass through procurement and a board, and often hinge on capital expenditure versus a lease. One undifferentiated list gets both wrong.