Thailand Agricultural Electricity Rate 2026 + How to Apply for a Farm Connection
The 'agricultural rate' is a dedicated utility tariff class for agricultural water pumps run by government agencies, agricultural cooperatives, and registered or government-certified farmer groups. This page explains how many baht per unit it is, who qualifies, how it differs from the home rate, and how to apply for an agricultural connection with the PEA.
How many baht per unit is the agricultural rate? Thailand's Type 7 agricultural water-pumping class (normal rate 7.1) works out to about 3.40 THB/unit at 100–2,000 units/month (including the current Ft of 0.1623 THB/unit and the 115.16 THB/month service charge; before 7% VAT — about 3.64 THB/unit with VAT).
The 'agricultural rate' is a dedicated utility tariff class (water-pumping for agriculture) — not a discount every farm gets automatically. It's for government agencies, agricultural cooperatives, and registered or government-certified farmer groups. Under the PEA/MEA 7.1 normal rate, the first 100 units cost 2.0889 THB each and every unit above that 3.2405 THB, plus a 115.16 THB/month service charge; with the Ft of 0.1623 THB/unit that works out to about 3.40 THB/unit at 100–2,000 units/month (before 7% VAT). Ft is reset every 4 months and eligibility is assessed by the utility, so confirm with the PEA (1129). Compare against other classes at how many baht per unit 2026. Most ordinary commercial farms use the normal/business tariff, not the special agricultural-pumping class.
What Is the Agricultural Rate? (A Special User Class)
Thailand's tariff structure has several 'user classes' — residential, small/medium/large business, non-profit, and a water-pumping-for-agriculture class. That last one is what people call the 'agricultural rate'. It exists for agricultural water pumps run by government agencies, agricultural cooperatives, and registered or government-certified farmer groups — it is not a general rate every home or farm gets. To use it you must meet the conditions and register with the utility as required. Its per-unit rate differs from the residential and business classes. Farms that pump heavily during the day should also understand the On-Peak/Off-Peak windows — see the TOU on/off-peak schedule. See the overview of every class at how many baht per unit 2026 and the Thai electricity guide.
How Many Baht Per Unit Is Agricultural Electricity in 2026?
The table below compares approximate per-unit rate bands (including the current Ft of 0.1623 THB/unit; before 7% VAT). Exact figures follow ERC announcements and change with the Ft period — confirm with the PEA before relying on them:
| User class | Approx. band (THB/unit) | Note |
|---|---|---|
| Agricultural (water-pumping) | ~3.40 | 7.1: units 1–100 2.0889 · 101+ 3.2405 · 115.16/month service (included) · conditions apply |
| Residential | ~3.15–3.95 | Tiered; more use, higher (100–500 units/month) |
| General business | ~4.18 | Most commercial farms sit here |
* The agricultural row (rate 7.1 at 100–2,000 units/month) and the residential row (Type 1.1/1.2 by usage, at 100–500 units/month) are computed from the official PEA/MEA tariff tables, monthly service charge included; the business row is approximate. All rows include the current Ft and exclude 7% VAT; some classes also carry a separate demand charge. Comparing whole bills incl. VAT at the same usage, rate 7.1 is cheaper than the home rate only from 226 units/month upward. Confirm exact figures with the PEA (1129). See all classes at how many baht per unit.
Who Qualifies for the Agricultural Rate?
The agricultural (water-pumping) rate is a special class, not open to everyone. Per the PEA tariff sheet it applies to agricultural water pumps of these three groups, supplied through a single meter:
Government agencies — MEA's table also names other state offices or bodies and local administrative organisations.
Agricultural cooperatives running agricultural water pumps.
Registered farmer groups, or farmer groups certified by a government agency — the supply must serve agricultural water pumps, not be mixed with a residence or business.
If you run an ordinary commercial farm (e.g. greenhouses, a livestock farm with varied electricity use), you'll usually be on the normal or business tariff, not the special agricultural-pumping class. Exact conditions follow the PEA/MEA announcements and assessment — ask first.
How to Apply for an Agricultural Connection (PEA)
Agricultural connections are mostly in the provinces (served by the PEA). The core steps are:
1. Prepare land/agriculture documents
Prepare your ID card, land-rights documents (title deed/Nor Sor 3/eligible documents), and proof of agricultural use such as farmer/cooperative registration. Ask the PEA for the exact list.
2. Submit the connection request to the PEA
File a connection request (stating the agricultural/water-pumping purpose) at your local PEA office, via 1129, or through the PEA Smart Plus app. Staff assess whether you qualify for the agricultural class or must use another tariff.
3. Site survey + cost assessment
The PEA surveys the distance from the line to your point of use and the poles/transformer needed, then quotes the line-extension/fees, which depend on distance and load size. We don't state a fixed figure because it varies greatly per plot.
4. Installation + start on the agricultural rate
Once you've paid and installation is done, you start on the approved tariff (the agricultural class if you qualify). The bill is units used × that rate + Ft + VAT.
Can Solar Cut a Farm's / Irrigation Pump's Power Bill?
Yes — and it's often very worthwhile, because agricultural water-pumping is power-heavy during the day, exactly when sunlight is strong. A solar pump system or rooftop solar on a greenhouse self-generates at the right time, cutting the units bought from the grid. Commercial farms on the (pricier) business tariff benefit even more from cutting daytime power. Read the Thai electricity guide and on net metering / selling back, or let CapSolar assess for free.
About this page
Compiled by the CapSolar team, led by Frank Lee (Founder). The user-class details and steps are checked against the utilities (ERC/PEA). This page is general information, not personal advice — exact rates and conditions follow the utilities' announcements and move with the Ft period; confirm with the PEA (1129) before deciding.
FAQ
Daytime-heavy farm or pump? Cut it with solar
Midday sun lines up with pumping hours. CapSolar will assess for free whether solar pays off for your farm or pump system.