Solar for Hotels & Resorts in Southern Thailand

Yes. 19Energy is a VAT-registered company, so we can issue a full tax invoice in your company's name, and 3% withholding tax works as normal for corporate clients. Our quotes state clearly whether prices are before or after VAT.

Under Royal Decree No. 805 of 2026, companies and people with business income can deduct 1.5 times the equipment cost as an expense; installation labor is not included. The equipment must be new and carry the No. 5 energy-efficiency label, and the deduction cannot be combined with other investment-promotion measures. The measure runs until the end of 2028. Confirm how it applies to your business with your accountant.

No. Roof work can be done without disturbing guests. We plan the installation zone by zone and avoid floors where guests are staying. Power only needs to be cut temporarily — for about half a day — while we connect to the main switchboard and the Provincial Electricity Authority (PEA) changes the meter. We schedule this in advance and choose the low season or the days with the lowest occupancy.

Yes, but the materials have to be chosen at the design stage rather than using the same kit as a job in town. For coastal sites we use aluminum mounting structures and stainless-steel fixings, and we position the inverter where it is out of direct sea spray. Beachfront properties should also clean their panels more often than usual, because salt deposits block light and stick harder than ordinary dust.

Generally, no. The rooftop solar buy-back scheme is open only to residential meters, and hotels and resorts are on commercial meters, so they don't qualify. The system has to be designed to use all of its power on site, with equipment that prevents power flowing back into the grid, as the PEA requires. The upside is that hospitality businesses already use a lot of power in the daytime, so designing for full on-site use is not a real limitation.

We design from the base load that runs no matter how many guests you have — cold rooms, water pumps, common-area lighting — then add a conservative allowance for the part that rises and falls with occupancy. That way, even in the low season almost all the power generated is still used rather than wasted. We ask for 12 months of electricity bills so we can see the real difference between seasons.

An engineer has to check it every time. Panels plus mounting weigh around 12 to 15 kg per square meter, which most buildings can carry — but we never judge it by eye. We have an engineer calculate and certify it in writing, because it concerns your guests' safety and is a document required for the permit applications.

Yes. Many properties turn their parking area into a solar carport, which does two jobs at once: it generates power and shades guests' cars. Panels can also go on the roofs of service buildings such as the laundry or plant room. We survey all the available space in one visit and give you the options.