Sonnen-Energie · Thailand

Cut your electricity bill with solar power

Thailand's tropical sun is one of the best solar resources in the world. We design and install rooftop solar systems that lower your monthly bill and make you less dependent on the grid.

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What matters most to you?

A couple of quick clicks — we'll get back to you personally.

What type of building is it?

Helps us estimate the right system size.

Roughly what's your monthly electricity bill?

Just an estimate — this helps us size the system.

Almost done — how can we reach you?

Free & no obligation. We usually reply within 24 hours.

Thank you — we'll be in touch!

We usually reply personally within 24 hours.

Homes going solar around Bangkok

Suburban home, Bangkok area

Family home going solar

Rooftop installation detail

Modern villa, Bangkok suburb

Illustrative images — real project photos to follow.

Why solar in Thailand

Built for tropical sun, built for your budget

High solar yield

Thailand's year-round tropical sunshine means significantly more solar energy per panel than in temperate climates.

Lower electricity bills

Every kWh you generate yourself is a kWh you don't buy from the grid — solar shrinks your monthly bill from day one.

Less dependent on the grid

A rooftop system with battery storage keeps essential appliances running even when the grid is unstable.

Increases property value

A professionally installed solar system is a lasting upgrade that adds real value to your home.

German engineering standard

Sonnen-Energie is a German solar specialist — the same quality standards and components, applied to your roof in Thailand.

Long-term reliability

Solar panels are a mature, low-maintenance technology built to produce clean energy for decades.

Components we install

Proven brands, not the cheapest we could find

FoxESS H3 Smart Series

Our inverters come from FoxESS — a proven manufacturer we already work with, chosen for reliability and strong after-sales support.

FoxESS EK12

A large high-voltage battery for high self-consumption — modular and backup-power capable.

FoxESS EK6

A compact high-voltage battery, modularly expandable — the right entry point for smaller systems.

Trina Solar modules

For the panels themselves, we work with Trina Solar — one of the world's largest and most established module manufacturers.

About us

A German solar specialist, now in Thailand

Sonnen-Energie Allgäu GmbH is a solar and energy specialist based in Germany, with our own in-house installation teams rather than subcontractors. We're expanding our work to Thailand to bring the same standard of planning, installation and service to homeowners here.

Talk to us

Sonnen-Energie solar technician installing a panel on a Bangkok rooftop

Our work

Placeholder photos — real Thailand project photos to follow.

Solar panels installed on a Bangkok rooftop

Premium components

FoxESS & Trina Solar

FAQ

Common questions about going solar

Own in-house installation teams

German engineering standard

Personal point of contact from quote to service

How long does it take for solar to pay for itself?

It depends on your electricity usage, roof orientation and local sun exposure — a proper site assessment gives you an exact figure for your home.

How long does installation take?

Installation itself is usually completed within one to a few days, once the system has been designed and the equipment is on site.

Can I add battery storage?

Yes — a battery lets you use your own solar power in the evening and during grid outages, increasing your self-consumption.

How much maintenance does a solar system need?

Very little. Solar panels have no moving parts; an occasional visual check is normally enough.

What warranty do I get?

Your panels and inverter come with the manufacturer's standard warranty — we'll give you the exact terms for the components used in your system as part of your quote.

Get your free quote

Talk to us about your roof

A few clicks, no obligation — we'll get back to you personally with a tailored recommendation.

Free consultation

Tell us about your roof and your electricity usage.

Custom quote

A tailored system design with a clear, fixed-price quote.

Professional installation

Installed to German engineering standards.

Ongoing support

We stay your point of contact after commissioning.

1,000+ systems installed · FoxESS components · 100% in-house teams

Prefer to call? +66 90 536 9895