Unlock the Power of Precision.

Discover the perfect solar package for your home and start maximizing your energy savings today! Use our smart system to evaluate your installation and calculate your real-time payback period. Take your savings to the next level: claim your actual installation costs as a personal income tax deduction for up to 200,000 THB!

Solar Packages Overview | Decent Energy

System Packages

On-Grid Hybrid
3kW Ongrid

Decent Start

Ideal for small homes

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Capacity

3kW On-Grid

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Inverter

Sungrow / Huawei (1 Phase)

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Panels

LONGi (Tier 1)

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Warranty Package

  • Panel: 12y Product / 30y Perf.
  • Inverter: 10-year warranty

103,000 THB

VAT & Installation Incl.

5kW Ongrid

Decent Smart

Ideal for medium homes

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Capacity

5kW On-Grid

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Inverter

Sungrow / Huawei (1 Phase)

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Panels

LONGi (Tier 1)

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Warranty Package

  • Panel: 12y Product / 30y Perf.
  • Inverter: 10-year warranty

136,000 THB

VAT & Installation Incl.

10kW Ongrid

Decent Pro

Ideal for large homes or offices

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Capacity

10kW On-Grid

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Inverter

Sungrow / Huawei (3-Phase)

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Panels

LONGi (Tier 1)

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Warranty Package

  • Panel: 12y Product / 30y Perf.
  • Inverter: 10-year warranty

256,000 THB

VAT & Installation Incl.

5kW Hybrid

Decent Hybrid

Optimized for residential hybrid efficiency

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Capacity

5kW + 6kWh LV Battery

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Hybrid Inverter and Battery

Sungrow (1 Phase)

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Panels

LONGi (Tier 1)

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Warranty Package

  • Panel: 12y Product / 30y Perf.
  • Inverter: 10-year warranty
  • Battery: 5-year warranty

170,000 THB

VAT & Installation Incl.

10kW Hybrid+

Decent Hybrid+

Best for energy independence

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Capacity

10kW + 10kWh Battery

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Hybrid Inverter and Battery

Sungrow (3-Phase)

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Panels

LONGi (Tier 1)

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Warranty Package

  • Panel: 12y Product / 30y Perf.
  • Inverter: 10-year warranty
  • Battery: 10-year warranty

369,000 THB

VAT & Installation Incl.

Shop | Decent Energy

Solar Calculator

Calculate your potential savings and find the perfect configuration for your property.

THB / Month
payments

Estimated Savings

Monthly Savings

~ 3,000 THB

Yearly Savings

~ 36,000 THB

Cost Comparison

5,500 Current Bill
2,500 After Solar

55% REDUCTION

Projected avg bill

Recommended System

Decent Smart - 5kW (Ongrid)

Best Value
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Solar Panel

LONGi (Tier 1)

or equivalent

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Inverter System

Sungrow High-Efficiency

or equivalent

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Warranty

แผงโซลาร์: รับประกันสินค้า 12 ปี / ประสิทธิภาพ 30 ปี

อินเวอร์เตอร์: รับประกัน 10 ปี

Total Investment

136,000.-

VAT INCLUDED

Payback Period

3.8 Years

CO2 Savings

4.2 T/Year

Government Incentive

Claim Tax up to 200,000 THB

Personal Income Tax Benefit

Current Status

Available

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Income Tax Benefit

Calculate additional savings from tax deductions based on your annual bracket.

Estimated Tax Refund

27,200.-

Max 200,000 THB

Request Quotation

Claim Tax with Residential Solar Installation
Benefits You Receive

- Homeowners can claim up to 200,000 THB per year in personal income tax deductions for solar installation expenses (including VAT).
- This benefit is applicable to personal income tax only.

What You Need to Prepare

- A full tax invoice indicating the homeowner’s full name and taxpayer identification number (or national ID number).
- Grid Connection Approval Documents.

Key Conditions for Claiming the Benefit
Condition
Details
Residential Property
The property must be classified as Type 1 (Residential) electricity usage.
Taxpayer Name Matches Meter
The name of the person claiming the deduction must match the electricity meter owner.
One Deduction per System
Limited to one deduction per person, per meter, per system.
Maximum System Size
The solar system must be on-grid and not exceed 10 kWp per home.
Legal Installation
The system must be installed, approved, and connected to the utility grid.
Valid Period
The installation must occur within the effective period of the tax incentive (until 31 December 2027).
Remark

– This is not a direct tax refund — the benefit allows you to use the actual expenses (including VAT) as a deduction from your personal income tax, not a refund of VAT.
– The maximum deduction of 200,000 THB does not mean you will receive 200,000 THB back; the actual tax savings depend on your net income and personal tax rate.
– Individuals with annual net income of 150,000 THB or less, who are already exempt from income tax, may not gain additional tax benefits from this deduction.