Flood-Season Safety
Flood, Electricity & Solar — When to Cut Power, Flooded Meter, Soaked Panels
Water is coming — when should you cut power, who handles a meter or appliances that got submerged, what solar homes must watch for, and what to inspect before switching back on once the water drops — distilled from utility electrical-safety guidance, by principle, with no guessed numbers.
8 min readLast updated: 5 Oct 2026Data as of: Oct 2026
The iron rule in a flood is "water and electricity don't mix": cut power before water reaches the outlets or the main panel — pull the cut-out or turn off the main breaker while standing dry with dry hands. But if the panel or meter is already submerged, do not touch it — call MEA 1130 / PEA 1129; the meter is utility property. A solar home must know that panels still produce DC voltage in daylight even after shutdown, so isolate in the installer's sequence and never wade toward flooded equipment — and do not restore power until everything is dry and inspected. Detail below.
Update · 5 Oct 2026
Will flood-hit users get electricity-bill relief? Status as of 5 Oct 2026
As of 5 Oct 2026 the ERC has still not announced an electricity-bill cut for flood victims — there is no confirmed discount rate, eligibility rule or registration route (we re-checked the ERC news page today). What is open now are two channels, and neither is an electricity discount: DDPM's "flood assistance money" via the "Thang Rat" app, and the government's post-flood repair channel "Traffy Fondue Repair, Rebuild, Fight the Flood", which takes requests to repair household electrical systems and appliances via Traffy Fondue's official LINE account. The table below shows which problem goes where.
- 2 Oct 2026 — DDPM (official): warned 76 provinces and Bangkok to watch for flash floods, run-off, landslides, standing water and strong gusts on 4–7 Oct 2026, with heavy to very heavy rain in places — especially the North, Northeast, Central region and South (citing the Thai Meteorological Department). Help: safety hotline 1784, 24 h (Government Public Relations Department).
- 2 Oct 2026 — DDPM (official): opened registration for flood assistance money for primary residences hit between 15 May and 30 Sep 2026 in 65 provinces and Bangkok — via the "Thang Rat" app from 08:00 on 2 Oct 2026, or in person at the local authority / Bangkok district office — under four cabinet-resolution cases (flooded up to 7 days with property damage / flooded over 7 days / surrounded by water over 7 days / living in a high-rise but unable to live normally for over 7 days). Once per household, and the home must be inside a declared disaster zone (Government Public Relations Department). This is not an electricity discount.
- 2–3 Oct 2026 — Government (official): launched "Traffy Fondue Repair, Rebuild, Fight the Flood" at 10:00 on 2 Oct 2026 (expected to stay open about one month, depending on request volume) as a single channel for post-flood repairs in 8 categories, including household electrical-system repair and small/large appliance repair. Request via Traffy Fondue's official LINE account → the "Repair, Rebuild, Fight the Flood" menu → choose the type → attach damage photos → share your location, then track the status to completion. Movable items may be routed to a repair point; fixed in-home systems get a technician or mobile unit sent to the home. The Ministry of Labour and the Department of Skill Development repair flood-damaged equipment, appliances and vehicles free of charge (Government House, 2 Oct; 3 Oct 2026).
- 28 Sep 2026 — news report (Thai PBS): the ERC Secretary-General said that, given the floods, the ERC Office will consult government and related agencies such as EGAT and PTT within 1–2 weeks (early October) to consider a new round of measures to reduce the impact and ease the electricity-bill burden, weighing fuel costs and all other factors (Thai PBS, 28 Sep 2026). This is "preparing to consult" — not a resolution or an announcement.
- 27 Sep 2026 — MEA (official): cancelled all planned maintenance outages for 27 Sep 2026 across its service area (Bangkok, Nonthaburi, Samut Prakan) to ease hardship from standing floodwater. Report faults or unsafe electrical equipment to 1130, 24 h (Government Public Relations Department).
- 26 Sep 2026 — IEAT (official): ordered industrial estates in the Meteorological Department's risk areas onto top flood alert — e.g. Bang Pu and the Ayutthaya estates — with backup generators at pump stations (the Ayutthaya group states at least 8 hours of backup supply) and flood-response/BCP drills with operators (IEAT press release).
Three things people mix up: flood assistance money ≠ bill relief ≠ wiring repair
| What it is | Who / status as of 5 Oct 2026 | What you can do now |
|---|---|---|
| Flood assistance money (primary residence) | Who / status as of 5 Oct 2026: DDPM — registration open since 2 Oct 2026 (floods 15 May–30 Sep 2026, 65 provinces + Bangkok) | What you can do now: Check you fit one of the 4 cases and a declared zone, then apply yourself via the Thang Rat app or the local authority / district office — tenants receive it themselves |
| Electricity-bill relief for flood victims | Who / status as of 5 Oct 2026: ERC — not announced; only a news report that it will consult within 1–2 weeks (from 28 Sep) | What you can do now: Nothing to register for yet. Keep your Sep–Oct bills. Treat anyone asking for money or personal data to "register you for a bill discount" as a scam signal |
| Flooded meter, house wiring and solar | Who / status as of 5 Oct 2026: The utility owns up to the meter (MEA 1130 / PEA 1129) — everything after the meter, and the solar system, belongs to the owner · since 2 Oct 2026 the government takes house-wiring and appliance repair requests via Traffy Fondue | What you can do now: Route by side: meter / service cable → the utility · house wiring, sockets, consumer unit and appliances → Traffy Fondue's official LINE account (or hire a licensed electrician yourself) · solar / inverter → your installer (not one of Traffy's 8 types) — in every case, no power back on before inspection; see the table and 5 steps below |
What to do while you wait — and during the 4–7 Oct rain
- During the 4–7 Oct rain (if you are in a risk area): know where the main cut-out/breaker is and decide in advance at what water level you will cut power (see "when to cut power" below). Lift power strips and appliances off the floor. If the home or factory has solar, get the shutdown sequence from your installer now, and photograph the inverter, DC/AC boxes and transformer in normal condition as before-and-after evidence for an insurance claim. Factories: check backup-generator fuel and follow estate notices.
- Affected homes: keep your Sep–Oct electricity bills and photograph the meter and any damage as evidence. Follow announcements from the ERC, MEA (1130) and PEA (1129) directly — and don't pay or hand personal data to anyone claiming to register you for an electricity discount; as of 5 Oct 2026 there is no bill-relief scheme to register for (what you can register for is DDPM's assistance money, via the Thang Rat app or your local authority, which you can file yourself at no cost).
- Safety before discounts: if water reached the consumer unit or meter, follow the cut-off and pre-restoration checks on this page. Any bill relief is a separate matter from getting reconnected, which should pass inspection on both the house side and the utility side.
- Factories / commercial buildings: follow your estate's notices and your BCP. If you have solar, have the installer inspect and record the post-flood condition (panels, inverters, DC/AC boxes and cable insulation readings) before restarting — useful both for safety and as insurance-claim evidence. Equipment usually mounted near ground level — inverters, combiner boxes, transformers — is at greater risk than rooftop panels. Plan backup power while you wait for reconnection: see factory outage cost & backup power.
Next milestones: the outcome of the ERC's consultations around 5–12 Oct 2026 (1–2 weeks from the statement), and the Traffy Fondue repair channel, expected to stay open about one month from 2 Oct 2026 — if your home needs wiring repairs, file the request in this window. We will update this section when there is an official announcement, and will not add any discount rate before it is published.
When should you cut power (cut-out / main breaker) if the house floods?
Cut it before water rises to the level of sockets, plugs or the main panel — not after it floods. Do it while the water is not yet touching you, standing on a dry spot with dry hands and feet. In a single-storey house or a fast-rising flood, kill the whole main; in a multi-storey house you may switch off only the at-risk downstairs circuits and keep essential upstairs power on where it is safe.
⚠️ If water has already reached the panel/outlets and you would have to stand in water to switch off, do not risk it yourself — you could be shocked. Back away to dry ground and call the utility 1130/1129 or the disaster hotline (DDPM) 1784 for help.
The electricity meter got submerged — who is responsible, what do I do?
The demarcation is that the utility is responsible up to and including the "meter", and everything after the meter into the house is the customer's. So a submerged meter and the service line before it are the utility's business — don't touch it, don't remove it, don't reconnect it yourself — call MEA 1130 / PEA 1129 to inspect. The consumer unit, breakers and house wiring after the meter are the owner's responsibility to have a professional check.
Costs to replace/inspect a meter after a flood are set by the utility case by case (public documents print no fixed amount) — ask 1130/1129 directly. For the owner-vs-tenant question, the same demarcation principle is on leakage — who is responsible.
Rooftop solar panels soaked or flooded — are they dangerous, can they shock you?
Solar panels are built to shed rain, so ordinary rain is not dangerous. The catch is that panels keep producing DC voltage as long as there is light, even with the inverter off and the breaker down. So if the DC wiring, connectors or the inverter (often mounted at a lower level) are submerged or damaged, there is a real leakage/shock risk in the water — never wade toward flooded solar equipment, and never touch wet cables/connectors with bare hands.
If you can reach it safely (dry), shut down in the sequence your installer set — typically the AC breaker off first, then the DC isolator/disconnect. If you can't reach it safely, stay clear and call your installer/O&M company; don't dismantle panels or pull cables yourself. After the water drops, the installer must inspect the panels, inverter and the cabling's insulation before it goes back on — see general upkeep at solar maintenance guide.
In a flood, who handles which equipment — and what to do?
Here is the responsibility line and the action, as a table — anchored on "the utility up to the meter, us after it" and the safety rule that anything submerged is off-limits until inspected.
| Equipment / zone | Who handles it | What to do |
|---|---|---|
| Service line + meter (up to & incl. meter) | Utility (MEA/PEA) | Don't touch/remove/reconnect; call 1130/1129 to inspect first |
| Consumer unit/breakers/house wiring (after meter) | Home/building owner | Cut the breaker before water reaches it; licensed electrician inspects before restoring |
| Submerged sockets/plugs/appliances | Owner | Do not plug in; must be fully dry and checked/replaced first |
| Solar panels/inverter/DC wiring | Owner + installer (EPC/O&M) | Panels are live in daylight; shut down per installer sequence; keep clear while submerged; installer inspects before restart |
Rule of thumb: anything submerged is unsafe until inspected — whether it belongs to the utility or to you. And "the power went out" during a flood (where to report, can you claim) is a separate topic — see outage: where to report, can you claim.
After the water drops, before restoring power — the 5 checks
Don't rush to switch on — moisture left in wiring and equipment is the cause of post-flood leakage, shorts and fires. Follow this order.
Keep the main off until dry and inspected
Let the wiring, sockets and any appliances that got wet dry out completely first (this can take days). Don't flip the breaker just to "try it".
Have a licensed electrician inspect
Have them check the service wiring, consumer unit, breakers, sockets, in-wall cabling and insulation resistance; water-damaged parts may need replacing, especially submerged breakers and sockets.
Test the earth-leakage breaker (RCD)
If you have an RCD, press its test button to confirm it still trips, and check the grounding is still intact — it is your key shock defence after a flood.
Solar: installer inspects before restart
If you have solar, have the installer/O&M inspect the panels, inverter, connectors and the DC cabling's insulation before energising — don't switch the inverter on yourself until it's checked.
Report the meter to the utility + request reconnection
If the meter or the line before it got wet, call MEA 1130 / PEA 1129 to inspect/replace and reconnect per procedure — restoring power after a flood should pass inspection on both the house side and the utility side.
This page answers "flood × electricity/solar" — related topics live elsewhere
If the main issue is an outage (where to report, how many hours until power, can you claim) see outage: report & claim · for short circuit / shock in general, short circuit: causes · for leakage & responsibility, leakage · and for the rainy season's effect on solar output, solar in the rainy season.
Who wrote this page
Compiled by the CapSolar team, a commercial solar provider in Thailand, and reviewed by Frank Lee (Founder). It draws on PEA/MEA electrical-safety principles whose accessibility we verified as of Aug 2026 (links below) and on commercial-solar O&M experience. Where a figure is installation-specific or a cost the utility does not publish, we don't guess — we point to 1130/1129. General safety information, not site-specific engineering advice.
FAQ
If water is likely to reach socket/panel level, or is rising too fast to manage, cut the whole main first for safety. In a multi-storey house where you're sure the water only reaches downstairs, you may switch off just the downstairs circuits and keep upstairs on — do it while the floor is dry and your hands are dry, and don't wait until water is already in.
Don't plug them straight back in. Submerged items (especially those with motors, circuit boards or insulation — air-con, washing machine, fridge, water pump) must be fully dry and professionally checked first; many need replacing, because moisture/silt causes later shorts or leakage — a shock and fire risk.
Yes — panels still make DC in daylight even with the inverter off. If you can reach it safely (dry), shut down in the installer's sequence — usually the AC breaker off first, then the DC isolator. If you can't reach it safely, or it's already submerged, don't force it — call the installer and stay away from water near electrical equipment.
The meter is utility property — don't remove/replace/reconnect it yourself. Call MEA 1130 / PEA 1129 so their staff can inspect and act per procedure; any cost and the replacement are decided by the utility case by case — ask the hotline directly.
An outage during a disaster is separate from this safety page, and claiming for damaged goods has no fixed compensation table in official documents — it's assessed case by case. Read outage reporting and the claim question on outage: report & claim.
Electricity/meter: MEA 1130 (Bangkok, Nonthaburi, Samut Prakan) or PEA 1129 (elsewhere), 24 h · disaster help/flood rescue: the DDPM disaster hotline 1784 · medical emergency / someone shocked: 1669 · never touch a fallen wire in the water.
As of 5 Oct 2026 the ERC has not announced electricity-bill relief for flood victims, so there is no rate, eligibility rule or bill-relief registration channel yet (what you can register for now is DDPM's flood assistance money via the Thang Rat app or your local authority — a separate thing from your electricity bill). There is only a news report (Thai PBS, 28 Sep 2026) that the ERC will consult government, EGAT and PTT within 1–2 weeks on a new round of bill-relief measures. Follow announcements from the ERC, MEA 1130 and PEA 1129 directly, and don't pay anyone who claims they can register you.
They are unrelated. Registering on the "Thang Rat" app, which DDPM opened on 2 Oct 2026, is a claim for flood assistance money for a primary residence (floods 15 May–30 Sep 2026, 65 provinces + Bangkok, once per household); it does not reduce your electricity bill. As of 5 Oct 2026 the ERC has not announced any flood bill relief — if it does, it will come from the ERC or the utilities (MEA 1130 / PEA 1129) directly.
Since 2 Oct 2026 the government has run "Traffy Fondue Repair, Rebuild, Fight the Flood", which takes requests to repair household electrical systems and appliances via Traffy Fondue's official LINE account (choose the type, attach photos, share your location, then track the status). Fixed in-home systems get a technician or mobile unit sent to the home, and the Ministry of Labour / Department of Skill Development repair flood-damaged equipment and appliances free of charge; the channel is expected to stay open about one month. Worth knowing: the meter and service cable still go to the utility (MEA 1130 / PEA 1129), solar panels and inverters should be checked by your installer, and you should not switch the power back on yourself before inspection. This channel is not an electricity-bill discount.
Is your commercial solar ready for the rainy/flood season?
For factories and commercial buildings, standards-compliant solar design/installation plus a post-flood inspection plan cut risk and protect output — CapSolar assesses free of charge, no obligation.
Talk to CapSolaror call +66 2 124 5414