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.
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 May–Aug 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 (May–Aug 2026) = 0.1623 THB/unit, versus the 2023 crisis peak — why it rose and fell, and the impact on factory bills.
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 MoreThailand Electricity Price Per Unit 2026 — Home/Rental/Business/Farm
How many baht per unit is electricity in Thailand in 2026? Residential averages 3.95 THB/unit (incl. Ft 0.1623) on progressive tiers; rental rooms are legally capped at 4.18 THB/unit; business 4.18; farms 3.70–4.15. With a worked 300-unit/month home bill, sourced from the ERC/PEA/MEA.
Read MoreRental Room & Dorm Electricity Cost Thailand 2026 — Per-Unit Rate + Tenant Rights
How many baht per unit is rental-room/dorm electricity in Thailand 2026? By law (the กกร.) a landlord may not charge above the utility rate (~4.18 THB/unit) — no profiting on power. Plus how to check if you're overcharged and what to do about it (OCPB hotline 1166). Sourced from กกร./OCPB/MEA/PEA.
Read MoreHow to Calculate Your Electricity Bill 2026: Formula + Example (Home MEA/PEA)
How to calculate your Thai home electricity bill 2026 step by step: progressive energy tiers (3.2484/4.2218/4.4217) + Ft 0.1623 + service charge 38.22 + 7% VAT, with a fully worked 300-unit home bill and a free bill analyzer. Sourced from MEA/PEA/ERC.
Read MoreHow to Apply for a TOU Meter in Thailand (PEA/MEA) 2026: Steps, Cost, Worth It?
How to switch to a TOU meter with the PEA (1129) and MEA (1130) in 2026: eligibility, the step-by-step application, the meter-change cost, and a clear 'should you switch?' decision guide (best for homes on off-peak use / overnight EV charging). Official channels included.
Read MoreThailand Agricultural Electricity Rate 2026: Baht Per Unit + How to Apply
The agricultural (water-pumping) rate is a dedicated user class — roughly 3.70–4.15 THB/unit (incl. Ft). Who qualifies (farmer groups/cooperatives/irrigation agencies), how it differs from the home/business rate, and how to apply for a farm connection with the PEA (1129). Sourced from ERC/PEA.
Read MoreHow to Calculate Your Factory Electricity Bill (2026) — 5-Minute Walkthrough
Calculate a Thai factory bill step by step for May–Aug 2026: pull 4 numbers from your bill, then 5 steps — split On-Peak/Off-Peak (4.1025 / 2.5849) + demand charge + Ft 0.1623 + 7% VAT. Plug in your own bill, with a free bill analyzer.
Read MoreSolar Phak Prachachon 2026 Explained — Why Factories Need C&I
Thailand's Solar Phak Prachachon 2026 is a residential rooftop excess buy-back: 2.20 THB/unit, 500 MW cap, ≤5 kW per meter, 10-year term (NEPC approved 29 Apr 2026). It's for homes, not factories — compared with factory C&I solar + Direct PPA options + FAQ.
Read MoreThai Factory Solar PPA: 10 Clauses to Check Before Signing (2026)
Before signing a Thai factory solar PPA, what should you check? Term, tariff & escalator, take-or-pay, performance guarantee, force majeure, termination/buyout, end-of-term transfer, roof lease, and change-in-law — with the questions to ask your lawyer (not legal advice).
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Hormuz Blockade Month 6: Thai Factory Energy Security Playbook
Iran blocked Hormuz Feb 2026; 70% of Thai grid LNG transits this route. Ft jumped, factory bills climbed. CFO playbook: hedge in 8-14 weeks via solar self-consumption + zero-capex PPA path for balance-sheet-constrained CFOs. BOI / Royal Decree 805 window still open.
Read MoreWhat a Power Outage Really Costs Your Factory — Solar+Storage Hedge
A CFO worksheet to put a baht figure on factory downtime — lost production, spoilage, restart, idle labour, SLA penalties → per-event → annualised — then how on-site solar + battery + microgrid hedge the exposure. Illustrative; plug in your own numbers.
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Factory Solar Installation Timeline Thailand: Sign to COD
How long does factory solar take in Thailand? Phase-by-phase timeline: survey & design → permits → procurement → install → grid connection → COD. What parallelizes, what delays, and whether production stops — from 150+ projects (typical ranges, not a guarantee).
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