Solar PV System

Solar Rooftop Design & Installation

ออกแบบ ติดตั้ง ระบบผลิตไฟฟ้าพลังงานแสงอาทิตย์บนหลังคา (Solar Rooftop) สำหรับโรงงานอุตสาหกรรมและอาคารพาณิชย์ คำนวณระบบและรับรองแบบโดยวิศวกรไฟฟ้าผู้ได้รับใบอนุญาต

Financial Savings

See what your roof could be saving you

A rooftop solar system offsets the electricity you'd otherwise buy from the grid at rising rates. Enter your average bill for an instant estimate — a free site assessment gives you an exact number.

Estimate your savings

Adjust the numbers to match your situation — the estimate updates instantly.

Average monthly electricity bill

Portion of your bill solar could offset 70%

Assumed annual electricity price increase 3%

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Est. monthly savings

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Est. year-1 savings

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Est. 25-year savings

Estimate only, based on Thailand's average electricity rate (~4.2 ฿/kWh incl. Ft & VAT, per PEA/MEA published tariffs) and a typical daytime-usage offset. Your exact savings depend on your roof, usage pattern, and system size — a free site assessment gives you an exact number.

Technicians installing rooftop solar PV panels

Engineered PV Systems

Grid-Tie Solar Power for Your Facility

We design and install rooftop solar PV systems that offset your facility's electricity costs — from initial site survey through licensed-engineer-certified design to installation, testing and utility grid-connection support.

Roof & site assessment matched to your building structure
String, cable and protection sizing calculated to design standards
Installation, commissioning and PEA on-grid connection support

What's Included

Complete PV System Components

Every installation is specified end-to-end — no gaps between panel and grid connection.

Monocrystalline PV Modules Grid-Tie String Inverter Mounting & Racking Structure DC/AC Circuit Breakers & SPD MC4 DC Connectors & Cabling Grounding & Bonding Smart Energy Monitoring

Our Process

From Site Survey to Grid Connection

A structured, engineer-led process for every project.

Step 1

Site Survey

Assess roof structure, orientation and available area to size the system correctly.

Step 2

Engineering & Calculation

String sizing, cable & voltage-drop calculation, and energy yield estimate.

Step 3

Install & Commission

Panels, inverter, mounting, cabling and protection installed and tested on site.

Step 4

Certify & Connect

Licensed engineer-stamped drawings and support through PEA grid-connection approval.

Standards & Compliance

Engineered to Code

Every design is calculated and stamped to recognized electrical and grid-interconnection standards.

Licensed P.E. Certified Design IEC 62109 Inverter Safety IEEE 1547 Grid Interconnection TIS / มอก. Compliance PEA On-Grid Approval Support <3% Voltage-Drop Design

Before You Ask

Frequently asked questions

How long does installation actually take?

Most rooftop systems are installed within a few days on site, depending on system size and roof complexity. The full process from site assessment to grid connection — including engineering, permitting, and utility interconnection — takes longer, since it depends on PEA/MEA processing times.

What happens on cloudy days?

Your system still produces power on cloudy days, just at a reduced rate. Under Thailand's net-metering arrangements, annual production is what matters most to your bill — not any single day's weather.

Do we need a battery to go solar?

No — most grid-tied systems don't require one. A battery adds backup power during outages and more control over self-consumption, but it's an optional add-on, not a requirement to start saving.

Is our roof or facility suitable for solar?

Most roof types can support solar, but orientation, shading, structural condition, and available area all affect system size and output. That's exactly what the free site assessment is for — a real answer, not a guess from a form.

How do we get an exact price, not just an estimate?

The calculator above gives you a starting estimate. Contact our team and we'll provide a written system design and quote based on your actual roof and usage.