In most cases you will not be affected by electricity, water and gas as these are surcharges only affecting rental and owned properties. However it is wise to note the following for your stay in the country.
The electric current in Thailand is 220 Volt AC (50 cycles) throughout the country. Travelers with shavers, tape recorders and other appliances should carry a plug-adapter kit. The better hotels will make available 110 Volt transformers on request. Electrical sockets accept either flat-blade or round-pin plugs.
It may be common in many countries to drink water directly from the tap, but due to hygiene reasons, it is advisable to not drink tap water in Thailand. Furthermore, travelers’ unaccustomed to otherwise harmless bacteria in the water could get upset stomachs from drinking tap water. Bottled water in Thailand is recommended as it is cheap and ubiquitous and most ice is safe to consume as it is produced with potable water, with cube ice generally safer than crushed ice. Water can be bought in large containers or small bottles in any nearby supermarket or convenience store.
Fuel for cars in Thailand is predominately-unleaded petrol, sold by the liter. Bigger vehicles, such as vans, use diesel. Both are readily available at petrol stations throughout the country. Prices range from 20 to 30 baht per liter. Most service stations accept Visa and MasterCard, and generally close by 10pm or midnight.
Thailand uses the metric system and road distances and speed limits are posted in kilometers and kilometers per hour.