Everything You Need
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In-depth guides, expert analysis, and real case studies to help you make confident decisions about solar energy.
Home Solar Battery in Thailand: Lithium vs Lead-Acid, Hours, Cost
Choose a home solar battery right: lithium (LFP) vs lead-acid (DoD ~80–90% vs ~50%, life ~8–15 vs ~1.5–3 years), how many hours a 100Ah/5kWh battery runs (Ah×V→kWh, then usable-kWh÷load, with a per-load hours table), and the honest answer that most grid-tied homes need no battery (on-grid + sell-back pays off better). No utility publishes a home-battery price, so this page gives the cost drivers instead.
Read MorePEA Smart Plus vs MEA Smart Life: What They Do & How to Link a Meter
How Thailand's two utility apps differ: PEA Smart Plus (provinces) vs MEA Smart Life (Bangkok/Nonthaburi/Samut Prakan), a feature-comparison table (check & pay, report outages, usage history), a 4-step meter-linking guide (customer number + meter code / national ID / scan the bill QR), multiple meters, plus how to fix a login you can't get into and a fake-app warning — all from official PEA/MEA pages and the app-store listings.
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Solar in Thailand's Rainy Season: How Much Does Factory Output Drop?
Solar keeps producing in the rain — heavy-rain days drop roughly 50–80% vs a clear day, but factory ROI is built on the 1,300–1,500 kWh/kWp annual yield that already includes the monsoon. Monthly curve + TOU impact + myths + lightning/storm/flood protection.
Read MoreFactory Solar Sizing Thailand: How Many kWp? (2026)
How many kWp should a Thai factory install? Size it step by step from bill → daytime load → kWp → roof area → generation, using 6.5 m²/kWp and ~1,300 kWh/kWp/yr, with a worked example and the common sizing mistakes to avoid.
Read MoreZero Export Solar Thailand: No-Backfeed Rules (MEA/PEA 2026)
Why most Thai factory rooftop solar must not export to the PEA/MEA grid: the 15% transformer rule, Zero Export Controller vs Reverse Power Relay 32, the MEA/PEA approved-equipment lists, and why C&I is self-consumption by default.
Read MoreWhat Is the Ft Charge? Current Thailand Ft Rate 2026
What is the Ft (fuel adjustment charge) on a Thai electricity bill, who sets it, and how often does it change? Current Ft for Sep–Dec 2026 is 0.1623 THB/unit, set by the ERC every 4 months. With a worked factory-bill example + FAQ.
Read MoreThailand Ft History Table 2020–2026 — Every Period Charted
Every Ft (fuel adjustment charge) period from 2020 to today in one officially-sourced table (ERC/PEA/MEA). Current Ft (Sep–Dec 2026) = 0.1623 THB/unit, versus the 2023 crisis peak — why it rose and fell, and the impact on factory bills.
Read MoreThailand Factory Electricity Cost Index — All-In THB/kWh, Every Ft Period
The ALL-IN factory electricity price (TOU energy + demand + service + Ft) per kWh for 100 kW / 500 kW / 1 MW factories, derived from official ERC/MEA/PEA schedules — full open methodology and a per-period changelog.
Read MoreThailand Electricity Bill & Saving Guide 2026 — Read It, Cut It
A plain-language electricity guide for Thai households: read your bill, how many baht per unit, what the Ft is, the TOU on/off-peak schedule, and real home-saving tips. Every topic linked in one place (ERC/MEA/PEA).
Read MoreThailand TOU On-Peak / Off-Peak Schedule 2026 (MEA & PEA) — Plain Guide
Thailand's 2026 TOU schedule made simple: On-Peak 09:00–22:00 Mon–Fri / Off-Peak 22:00–09:00 + weekends/holidays. MEA & PEA per-unit rates, a worked saving example, and who benefits from a TOU meter.
Read MoreWater Heater 3500 vs 4500 vs 6000W: Cost, Meter & Breaker
At 30 min/day a 4500W unit costs only ~70 THB/month more than 3500W (real current-period rates) — the real decider is the electrical system: verified 15.9/20.5/27.2A draws, manual-based breaker/cable table, 5(15) vs 15(45) meters, and the true total cost when an upgrade is needed.
Read MoreHow Many Watts Does a TV Use? Monthly Cost (LED/OLED)
Watts + monthly cost for 32/43/55/65" TVs in both LED and OLED at real current-period rates, the standby cost over a year, and how much big vs small screens really differ.
Read MoreHow Many Watts Does a Rice Cooker Use? Cook vs Keep-Warm
300–1000 W while cooking but only 30–150 W on keep-warm, which runs all day — a watts-by-litre table + real costs comparing cooking once vs keeping warm all day (several times more), and digital vs mechanical.
Read MoreThailand Electricity Price Per Unit 2026 — Home/Rental/Business/Farm
How many baht per unit is electricity in Thailand in 2026? The all-class average is 3.86 THB/unit (incl. Ft 0.1623); homes are billed on progressive tiers; rental rooms are legally capped at 4.88 THB/unit (OCPB 2025 law); business 4.18; farms 3.70–4.15. With a worked 300-unit/month home bill, sourced from the ERC/PEA/MEA.
Read MoreHome Electricity Rate Thailand 2026: Baht Per Unit Explained
How many baht per unit is home electricity in Thailand 2026? Households pay a tiered (progressive) rate, not a single price. See Type 1.1 (≤150 units) and 1.2 (>150 units) rates, the Ft (0.1623) and 7% VAT, and a worked 350-unit bill ≈ 4.3 THB/unit (not the 3.86 system-wide average).
Read MoreElectricity Meter Name Transfer in Thailand: Documents & Steps
Bought a home and the bill still shows the old owner? From the official MEA/PEA manuals: the document checklist (including inheritance cases and passports for foreigners), filing online via MEASY / PEA Smart Plus, and PEA's 30-working-day timeline. No transfer fee is listed in the official sources — confirm via 1130/1129.
Read MoreApply for an Electricity Meter in Thailand 2026: Cost & Steps
How much does a new home electricity meter cost? The MEA inspection fee is 700 THB (single-phase), and new residential applicants pay NO security deposit. Plus how to pick the meter size (a typical home is 15(45)A), the documents you need, the steps, and how many days it takes. As of June 2026 — confirm via 1130/1129.
Read MoreThailand Electricity Customer Classes 2026 — How Many There Are and Which One You Are
MEA's rate schedule divides customers into seven classes, from residential through to agricultural pumping, with temporary supply priced separately as another class again. Your class is already printed on your bill and is not something you choose. Within residential the split is at 150 units a month between 1.1 and 1.2 — but the point where the prices actually cross is around 118 units, so a household using between the two sits in the class that costs it more, and the bill falls from 590.06 to 578.45 THB going from 150 to 151 units. The page also answers the PEA numbering question (1.1.1 / 1.1.2 are the same thing as 1.1 / 1.2) and states plainly what it cannot decide for a non-residential premises.
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