#1 for Renewable Energy in the Bangkok Region
#1 for Renewable Energy in Thailand

German Engineering for Your Solar Independence

Experience premium photovoltaic solutions from a leading German master craftsman company. We bring over 1,000 successful installations to Bangkok and surroundings.

HWK Logo Regional master craftsman business with its own
installation teams, electricians and roofers.

Individually Planned.
German Precision.

As a German-owned and operated company, we don't offer standard solutions. Every system is planned with the meticulous attention to detail that German engineering is famous for.

With our own teams of master electricians and roofers, we ensure that your solar investment in Thailand meets the highest European standards for safety and efficiency.

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Solar Energy Thailand Team

6 Reasons to Trust Sonnen-Energie Thailand

From the first consultation to the final installation - experience the quality that over 1,000 customers already trust.

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German Engineering

Direct from our headquarters in Germany to your roof in Thailand. We apply German DIN standards to every installation.

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Outstanding Warranties

Up to 40 years performance warranty on modules and 25 years roof waterproofing, backed by certified substructures.

Premium Quality

From modules to the last screw: we use hand-selected components and precise workmanship for maximum lifespan and efficiency.

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Individual Planning

No off-the-shelf solutions: your system is precisely tailored to your roof area, electricity consumption, and personal preferences.

Installation in 4-6 weeks

No long waiting times: after order confirmation, we install your system quickly, cleanly, and reliably - usually within weeks.

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Personal Consultation

From the first idea to commissioning, your personal contact person guides you step by step through the entire project.

Our Offers for Your Energy Independence

Produce your own energy - with a smart energy concept from Sonnen-Energie, you regain control over your electricity costs.

Modern suburban house with solar
For Homeowners

Never Pay High Electricity Bills Again

Complete packages at competitive prices - trade your ongoing electricity contract for long-term energy independence.

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Modern villa with solar panels
For Businesses

Turn Green Energy Into Black Numbers

Unused roof areas and land can generate effective cost savings with the right solar configuration for your business.

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Modern residential complex
For Landlords & Developers

Tenant Electricity PV Without Bureaucracy

Maximise returns per building while your tenants benefit from significant electricity savings.

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Our Guarantees Go Beyond the Norm

We expand because we understand our customers' needs. Solid processes and fair, honest offers are our foundation.

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5-Year Installation Warranty

No worries about installation errors - sleep soundly long after our team has left your property.

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Up to 25-Year Performance Warranty

All our components come from the premium segment and carry up to 25 years of performance warranty.

Premium Components

We use only high-quality inverters and modules from world-leading manufacturers for maximum reliability.

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5 Years Free Remote Monitoring

We monitor your system externally and inform you about any performance fluctuations - completely free for 5 years.

Everything About Solar Energy in Thailand

Typically between 5 and 8 years in Thailand, depending on your consumption, roof orientation, and electricity prices. Thanks to Thailand's abundant sunshine (1,600-1,900 kWh/m² annually), PV systems here reach profitability faster than in many other countries. After that, your system generates virtually free electricity.
Thailand offers various incentive programmes for solar energy, including net metering, feed-in tariffs, and BOI investment promotion privileges for businesses. The government has been actively promoting renewable energy. We advise you individually on the current programmes available for your situation.
The investment depends on system size, roof conditions, and desired features. For a typical home in the Bangkok area, systems range from 5-20 kWp. We provide a detailed, transparent quote after our free consultation - including installation, all components, and warranties.
Excess electricity can be fed back into the grid. In Thailand, net metering and feed-in tariff programmes allow you to receive credit or payment for the surplus energy your system produces. Alternatively, a battery storage system can store excess energy for use during the evening or at night.
Photovoltaic systems are virtually maintenance-free. Regular visual inspections are usually sufficient. We recommend professional cleaning every 1-2 years due to tropical dust and humidity. With us, you also benefit from 5 years of free remote monitoring - we keep an eye on your system's performance.
Absolutely, and we highly recommend it. A storage system allows you to use more of your own solar electricity - even in the evenings or during cloudy weather. Higher self-consumption means greater profitability and less dependence on the grid.
After planning, installation typically takes place within 4-6 weeks. The physical installation itself usually takes just 1-2 days. After your order confirmation, you'll be connected and generating power within weeks.
For most residential rooftop installations in Thailand, no building permit is required. For larger commercial systems or ground-mounted installations, permits may be necessary. We handle all regulatory requirements for you and ensure full compliance.
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Current offer

10 kWp PV system
Assembly included

  • 23 Trina modules
  • FoxESS 10 kW storage tank

16.990€

We also cover your electricity costs until the photovoltaic system is installed.