Electricity, water, internet, cooking gas and rubbish for your island home - who the providers are, how bills and landlord markups really work, the island's well-and-tank water situation, typical costs, and how to pay everything by app or at 7-Eleven.
Getting your utilities sorted on Koh Chang is usually painless because in almost every rental the electricity, water and often internet are already connected in the resort's, villa manager's or landlord's name - you just pay the monthly bill. The island has real quirks worth knowing, though: electricity comes from PEA over a mainland connection from Trat, and storms can still cause brief outages on this ferry-only island; water is rarely a full mains supply and instead runs off private wells, boreholes and storage tanks that trucks top up when the drier months bite; and fibre internet has spread fast along the west coast but still thins out toward the quieter east side. Here is exactly how each utility works on Koh Chang, what it costs, and how to pay it.
Koh Chang is served by the Provincial Electricity Authority (PEA), the same state utility that covers Trat province and almost every part of Thailand outside Bangkok, Samut Prakan and Nonthaburi. Power is 220V and reaches the island via a mainland connection from Trat rather than local diesel generation. Because Koh Chang is a ferry-only island covering a mountainous, largely national-park interior, brief outages during storms are still more common than in a mainland town, and coverage can be thinner around the quieter east coast and Salak Kok than along the built-up west coast.
In almost every rented bungalow, villa or apartment along White Sand Beach, Klong Prao, Kai Bae or Lonely Beach the electricity meter stays in the landlord's or resort's name and you simply pay whatever is billed each month. Long-term leases or owned property can be registered in a renter's or leaseholder's own name at a PEA service point on the island or in Trat town, with a passport, the house registration book (tabien baan) and the property documents.
The true PEA residential rate is roughly 4-5 THB per unit (kWh). Many Koh Chang bungalow resorts, villas and long-stay rentals bill tenants at a marked-up flat rate of 7-10 THB per unit or higher, a common practice across Thailand's resort islands. Always ask the exact per-unit rate before signing, especially for anything running air-conditioning through the hot season.
A fan-only bungalow can run as little as 500-1,000 THB a month; an AC studio or one-bedroom along White Sand Beach or Klong Prao typically runs 1,500-3,000 THB; and a private pool villa running several AC units can reach 4,500-9,000 THB in the hot season. Fan-cooled rooms remain common in the island's smaller guesthouses and cut the bill sharply.
Water is Koh Chang's biggest utility variable, the same as on most of Thailand's larger islands. There is no comprehensive Provincial Waterworks Authority (PWA) piped network covering the island; homes and resorts across White Sand Beach, Klong Prao, Kai Bae, Lonely Beach and Bang Bao typically rely on private wells, boreholes, mountain-stream intakes or storage tanks rather than a shared municipal supply. Always ask a landlord specifically what water system a property uses before you commit; it varies house to house even within the same beach.
Most Koh Chang bungalows and villas draw from a private well or borehole, or in parts of the hillier interior from a stream fed by the island's national-park waterfalls (Klong Plu, Than Mayom), feeding an elevated or underground storage tank and pump. This water is fine for washing, cleaning and irrigation but is not drinking quality. It is standard island infrastructure rather than a red flag, but pressure and reliability depend entirely on that specific property's tank, pump and source, which is worth testing before you sign.
In the drier months, roughly November to April, wells and stream-fed tanks across the island can run lower, particularly on the hillier interior and around the quieter east coast, and private water-truck top-ups become a routine fallback for resorts and villas whose storage tank runs low. Ask in advance whether a property has ever run short on water and who arranges and pays for truck deliveries if that happens.
Where a resort or estate connection exists, metered water is inexpensive, often only a few hundred baht a month, though dry-season truck top-ups can add to that. Private wells are usually included in rent with no separate metered charge, unless truck deliveries are needed. Nobody drinks the tap or well water on Koh Chang: households buy 20-litre refill bottles or run a home filter - see the drinking-water guide for costs and delivery options.
Home fibre from AIS Fibre and True Online now reaches most of the built-up west coast - White Sand Beach (Hat Sai Khao), Klong Prao, Kai Bae and Lonely Beach all have guesthouses, villas and cafes running fibre connections, and outages tied to rain are far less common than they were a few years ago now that most west-coast properties are on fibre rather than older copper or wireless links. Coverage is inconsistent further inland and on the quieter east coast around Salak Kok and Long Beach (Hat Yao), so always confirm what is actually available at a specific address before assuming fast fibre is standard.
A typical home fibre package runs in the region of 500-700 THB a month for a mid-tier plan with the router included, similar to reported real-world Koh Chang connections. It is fast enough for video calls and streaming, though the island has no dedicated coworking space, so most remote workers rely on cafe wifi or a home fibre line plus a mobile SIM as backup - see the coworking spaces and cafes & wifi guides.
All three national mobile networks - AIS, True and DTAC - offer workable 4G coverage across the main west-coast beaches, with 5G available in the busier tourist areas. Coverage on the quieter east coast and deeper into the national-park interior is patchier. Most long-stayers keep a SIM from at least one provider as a backup to home fibre - see the internet & SIM cards guide for current plan pricing.
In an apartment or resort room, fibre is often already installed and you either take over the existing line or start a plan in your own name with your passport. In a standalone villa or bungalow the landlord may already have a connection, or you arrange a new install yourself - budget a few days to a couple of weeks, longer for remote or hillside plots where a provider has to run new cable.
Most Koh Chang kitchens cook on bottled LPG rather than piped gas or electric hobs. You buy or exchange a gas bottle, typically 350-450 THB for a refill, through a local shop or resort management, who deliver and connect it. One bottle usually lasts a single-person household a month or two. Newer condos and higher-end villas more often run all-electric induction hobs instead.
Household waste collection in the more built-up parts of White Sand Beach, Klong Prao and Kai Bae is generally handled by the local municipality or a resort's own arrangement, and is usually folded into rent or a small monthly fee; villa estates and remoter bungalow resorts often run their own collection or drop-off instead. Recycling is informal - separated glass, cans and plastic are collected by local buyers - and it genuinely matters on a national-park island with limited onward disposal capacity, so ask what system a property follows.
If you rent a unit inside a bungalow resort or small apartment building, a monthly common-area fee can cover shared pool, grounds and security, separate from your own electricity, water and internet, though many smaller Koh Chang resorts fold this straight into the room rate rather than billing it separately. Always clarify exactly what your rent includes before signing.
The simplest way to pay a utility bill is your Thai bank app (Bualuang, K PLUS, SCB Easy, KMA) - scan the barcode on the paper bill or use the biller menu and it clears instantly. See the Koh Chang banking guide for opening a local account.
You can pay almost any Koh Chang utility bill in cash at any 7-Eleven or Counter Service point - hand over the bill, pay the amount plus a small (10-15 THB) fee, and keep the receipt. It's the reliable fallback before a bank account is open, and 7-Elevens are easiest to find along White Sand Beach, Klong Prao and Kai Bae.
The great majority of Koh Chang renters never deal with PEA directly - the resort office, villa manager or landlord reads the meters, adds their per-unit rate (plus any dry-season water-truck costs), and hands you one combined bill each month to settle by transfer or cash. Ask to see the electricity and water rates in writing so a fan-only budget doesn't quietly turn into an AC-villa bill.
When an account is genuinely registered in your own name, typically only for long-term leaseholders or villa owners, PEA takes a small refundable deposit at connection. As a standard renter you almost never handle this: electricity and water are already live under the resort's or owner's name, and you simply start paying the monthly bill from your move-in date.
The island is served by the Provincial Electricity Authority (PEA), connected to Trat province's mainland grid rather than local generation. In almost every rental the meter stays in the landlord's or resort's name and you simply pay the monthly bill; only long-term leaseholders or villa owners typically register an account in their own name, using a passport, house registration book and property documents. Power is already live in nearly every home along the west coast, so a new connection is rarely needed as a renter.
Usually a combination of air-conditioning and landlord markup. The true PEA rate is about 4-5 THB per unit, but many bungalow resorts and villas bill tenants at 7-10 THB per unit or higher. A fan-only bungalow can cost as little as 500-1,000 THB a month, while a pool villa running several AC units can reach 4,500-9,000 THB in hot season. Always confirm the per-unit rate before signing.
Not island-wide - this is the biggest utility quirk here, as on most of Thailand's larger islands. There is no comprehensive Provincial Waterworks Authority network covering Koh Chang; most bungalows, villas and resorts along White Sand Beach, Klong Prao, Kai Bae and Lonely Beach rely on private wells, boreholes, national-park stream intakes or storage tanks. In the drier months (roughly November to April) tanks can run low and private water trucks top them up. Ask exactly what water system a specific property uses, and note that nobody drinks tap or well water - buy refill bottles or fit a filter.
Home fibre from AIS Fibre or True Online typically costs in the region of 500-700 THB a month, with connections now reaching most of the built-up west coast - White Sand Beach, Klong Prao, Kai Bae and Lonely Beach. Coverage thins further inland and on the quieter east coast, so confirm the exact address before assuming fast fibre is standard. There is no dedicated coworking space on the island, so most remote workers combine home fibre with cafe wifi and a mobile SIM as backup.
Most renters never pay PEA directly - the resort office, villa manager or landlord reads the meters and issues one combined bill (electricity, water and any water-truck top-ups) that you settle monthly by transfer or cash. If you do hold a bill in your own name, the easiest route is your Thai banking app - scan the barcode and it clears instantly - or pay in cash at any 7-Eleven or Counter Service point along the west coast for a small fee.
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.
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Hero photo by Anh-Bao Tran-Le on Pexels. General information only; utility providers, rates and water arrangements vary by resort, estate and property and change often - confirm current details locally before signing a lease. Costs in Thai baht (THB) and are indicative.