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SOLAR CELL CALCULATOR

Solar Panel Calculator

Find the ideal power output for you, along with the savings you'll achieve.

🌞 Solar Calculator New Rates Jun 2026

Updated for Thailand's National Energy Agenda | Progressive 3-tier rates + Net Billing at 2.20 THB/unit

Tier 1

1 – 200 units / month

~2.80 ฿/unit

✅ Subsidized — ~20% reduction

Tier 2

201 – 400 units / month

3.95 ฿/unit

⚠️ Normal rate — first 200 still discounted

Tier 3

401+ units / month

~5.10 ฿/unit

🔴 Progressive — solar ROI is highest here!

🔍 Step 0 — Check your electricity tier first for accurate results

Monthly kWh Usage (from your bill)

Monthly Bill Amount (THB incl. 7% VAT)

1. Calculate System Size

Average Monthly Bill (THB)

Electricity Rate (THB/unit) 💡 Use your marginal rate: Tier 1 → 2.80 | Tier 2 → 3.95 | Tier 3 → 5.10

Daytime Usage Mon–Fri (9AM–3PM) 40% Home: 20–40% | Office/Shop: 60–80%

Daytime Usage Sat–Sun (9AM–3PM) 70% Home: 60–80% | Office: 10–20%

Select Province

Peak Sun Hours (PSH)

Meter Type (Phase)

1 Phase 3 Phase

2. Calculate Savings & ROI

Number of Panels to Install

Total Installation Cost (THB)

Monthly kWh Usage 💡 Entering your kWh enables accurate tiered bill savings calculation

☀️ Enable Net Billing (sell excess back to grid)

Buy-back rate: 2.20 THB/unit · 10-year contract · Max 5 kWp system

Note: Tier 1 (~2.80 THB/unit) and Tier 3 (~5.10 THB/unit) rates are approximate pending OERC official announcement by June 2026. PSH values are annual averages. Consult a professional for a precise site assessment.

WHY US

Why choose to install solar cells with
PUMA SUNERGY

6 Reasons to ChooseUs for Your Solar PanelInstallation

Advanced Technology

Experience high-performance microinverter tech ensuring optimal energy production, even in low light or with partial shading.

Long-Term After-Sales Service

We provide dedicated after-sales care, supporting your solar system throughout its entire 25-year lifespan.

World-Class Quality Products

We offer Tier 1 solar panels from leading German brands, backed by an extensive 25-30 year warranty.

Smart Monitoring System

Keep real-time track of your system's post-installation performance directly from our app and website.

Maximum Safety

Our low-voltage system includes Rapid Shutdown, ensuring the highest safety for your system during emergencies.

Unwavering Quality

We never compromise on quality or cut specs. You get superior, European-standard products, avoiding future issues.

OUR PREVIOUS WORKS

Our Projects

See our past solar panel installations using Microinverter systems for our valued customers.

Office | Bang Khae

Energy Size	6 kW	6.96 kWp
PV	580w	12 units
Inverter	HM-1500	3 units

Residential Home | Phasi Charoen

Energy Size	4.5 kW	5.52 kWp
PV	460w	12 units
Inverter	HM-1500	3 units

House | Taling Chan

Energy Size	9 kW	11.04 kWp
PV	460w	24 units
Inverter	HM-1500	6 units

SUPERIOR MATERIALS

AESOLAR (founded 2003) is a global solar panel manufacturer from Germany, consistently ranked as a Tier 1 producer by BNEF. Driven by unwavering quality and innovation, AESOLAR is expanding its manufacturing base from China and Turkey into Europe (Germany, Bulgaria, Czech Republic, Greece), aiming for a total capacity of 7GW by 2025. Our distribution network now covers over 100 countries worldwide!

NEWS AND KNOWLEDGES

The Essentials

Valuable News & Insights on Modern Energy and Technology

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27 Sep

when there is free energy
from the sun?

PUMA SUNERGY

Solar Panel Calculator

🌞 Solar Calculator New Rates Jun 2026