What Is Solar Rooftop? A Simple Guide for Beginners
Learn how rooftop solar power systems work, their main components, benefits, and what to know before installing one.
Read article →Solar rooftop design and installation for homes, schools, buildings, and factories, plus biogas, wastewater treatment, and electrical systems — from a free site survey through final handover.
PTH GREEN reviews electricity usage, roof area, and daytime consumption before sizing each solar rooftop system, so the design fits the actual site without unnecessary oversizing.
Based in Hat Yai, Songkhla, with completed work in Songkhla, Satun, Pattani, and Nakhon Si Thammarat. We also consider projects across Southern Thailand and nationwide.
Solar service in Hat Yai–Songkhla →Cost depends on capacity, roof type, equipment, existing electrical systems, and site requirements. We survey the site and provide an itemized quotation before work begins.
Read the guide and request an assessment →Homes, schools, foundations, cooperatives, commercial buildings, and factories — including survey, design, installation, testing, and handover.
View completed projects →Enter your electricity bill and daytime use to see an illustrative system size, installation cost, savings, and payback. Free, with no account needed.
From consulting and design to construction and site supervision — backed by real experience working with schools, foundations, cooperatives, and industrial factories.
Design and installation of rooftop solar systems for homes, buildings, schools, and factories to reduce long-term electricity costs.
View service details →Consulting, design, and construction of biogas production systems from industrial wastewater, from thousands to tens of thousands of cubic meters.
View service details →Design and construction supervision of wastewater collection and treatment systems for industrial factories, meeting environmental standards.
View service details →Design and installation of transformers, and upgrades to high/low voltage electrical systems for homes, buildings, and government agencies.
View service details →New service upgrading biogas into liquefied biomethane. Open for feasibility studies with interested pilot-project partners.
View service details →Full-service environmental and renewable energy consulting for communities and a sustainable future.
Discuss your project →From first contact to project handover, transparent at every step with no hidden costs.
Call or message us. Our team schedules a site visit and initial consultation at no cost.
We design a system that fits your site and budget, with a clear, itemized quote.
Our engineering team supervises every step according to the agreed design and standards.
We test the system for real-world performance, hand over the project, and stay available for ongoing support.
Scheduled inspections and maintenance, with our team ready to support your system throughout its lifetime.
We provide environmental and renewable energy services with a team experienced in working with educational institutions, foundations, cooperatives, and industrial factories across Southern Thailand.
A clearly registered legal entity — verifiable, professional, and transparent at every step.
From consulting and site surveys to design, construction, installation supervision, and handover.
Schools, educational foundations, mosques, Islamic cooperatives, and large industrial factories.
Clear project planning and quality control at every stage — reliable for every project.
Answers to the questions clients ask most before starting a project. Can't find what you need? Contact us directly.
Yes, completely free. There's no charge for an initial consultation or site visit — you'll get a clear quote before deciding anything.
Timeline depends on the size and complexity of the system. Our team will confirm a clear schedule after the site survey.
We serve every scale — from homes and buildings to schools, foundations, cooperatives, and large industrial factories.
We currently have projects in Songkhla, Satun, Pattani, and Nakhon Si Thammarat, and welcome projects nationwide — contact us about your location.
Full-service clean energy and environmental solutions, including biogas systems, wastewater treatment, and high/low voltage electrical systems.
Plain-language explainers on solar power, biogas, wastewater treatment, and electrical systems for anyone doing research before they decide.

Learn how rooftop solar power systems work, their main components, benefits, and what to know before installing one.
Read article →
A quick summary of what to check before deciding — system size, roof condition, existing electrical setup, budget, and choosing a provider.
Read article →
A rough 3-step formula with a worked example, so you can estimate a starting system size yourself.
Read article →
A clear comparison of how each system works, including its benefits and limitations, to help you choose the right setup.
Read article →Message or call us anytime. Our team is ready to advise you and conduct an on-site survey.
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