Solartron

What Solartron does

Solartron Public Company Limited (SET: SOLAR) is a Thailand-based solar technology company founded in 1989 that operates a vertically integrated business spanning the manufacture of multicrystalline silicon solar cells and modules, EPC (engineering, procurement, and construction) services, and ongoing operations and maintenance. The core hardware portfolio includes SLT156P4B (4-busbar) and SLT156P5B (5-busbar) multicrystalline silicon solar cells and the SP250-270W and SP290-415W module series, all produced on a German automatic production line with Fraunhofer ISE-calibrated standard cells and 100% in-line optical inspection for shunt resistance and reverse current. Modules carry UL (US), MCS (UK), JIS (Japan), TIS, and CE-Mark certifications, supporting both domestic and international distribution.

The company targets three primary customer segments — residential, commercial, and industrial — selling through direct enterprise field sales, nationwide installation coverage, and a planned e-commerce channel. Pricing is quote-based, with system sizes ranging from 5 kW residential to 1 MW+ industrial rooftop; a 6–7 year payback period is cited for industrial customers with electricity costs above 50,000 THB/month. Customer adoption is supported by an ESCO-backed energy savings guarantee, BOI tax benefits, and a multi-bank financing network (Thai Orix, Kasikorn Bank, Siam Commercial Bank) that enables leasing with as little as 10% upfront investment. Post-installation, Solartron provides a 10-year product warranty, 25-year panel lifespan guarantees, bi-annual O&M site visits, and the SOLARPVONLINE.COM web-based monitoring platform.

Solartron's growth model combines hardware manufacturing margins, project EPC fees, recurring managed-services revenue from monitoring subscriptions, and energy project ownership via four wholly-owned subsidiaries (Solartron Energy 1, 2, 3, and 5) plus the SLT Joint Venture. The capital structure was strengthened in 2024 through a private placement offering to existing shareholders, with SOLAR-W1 warrants outstanding. Notable enterprise customers include Bank of Thailand, Thammasat University, CIMB Thai Bank, Bank for Agriculture and Agricultural Cooperatives, Denso (Thailand), Tesco Lotus (Ek-Chai Distribution System), Boonthavorn Ceramic, Surapon Foods, Caltex gas stations, and Amway Thailand, indicating broad institutional penetration within Thailand while international distribution remains export-led rather than a primary revenue driver.

Name

Solartron

Legal name

Solartron Public Company Limited (บริษัท โซลาร์ตรอน จำกัด (มหาชน))

Website

https://solartron.co.th

Company type

Public

Founded year

1989

Operating status

Operating

Headcount range

101–250 employees

Short description

Solartron is a Bangkok-based public company that manufactures multicrystalline silicon solar cells and modules and provides integrated EPC, O&M, and monitoring services for residential, commercial, and industrial customers across Thailand, with select international distribution.

Ownership category

akta.pro rank

Product category

Solar PV Manufacturing and Rooftop Systems

NAICS

Semiconductor and Related Device Manufacturing (334413), Solar Electric Power Generation (221114)

SIC

Semiconductors & Related Devices (3674), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Solar PV Module & Cell Manufacturing (Crystalline, Thin-Film) (EUAMAHAA)

akta.pro secondary industries

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB), Solar Roofing & Roof-Mounted PV Systems (IMADAFAO)

Keywords

• Solar cell manufacturing
• Solar PV modules
• Rooftop solar systems
• Solar EPC services
• Solar O&M services

Headquarters

HQ city

Bangkok

HQ country

Thailand

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Solar Hardware Sales: Manufacturing and sale of solar cells (SLT156P4B, SLT156P5B) and solar modules (SP250-270W, SP290-415W) for electricity generation
2. EPC Services: Engineering, Procurement, and Construction services including site survey, system design, installation, and commissioning of solar PV systems
3. Operations & Maintenance: After-sales service and maintenance for solar PV systems with professional team coverage across Thailand
4. Energy Monitoring Services: Online monitoring system services for tracking energy savings and system performance

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Solartron manufactures and distributes multicrystalline silicon solar cells (SLT156P4B, SLT156P5B) and solar modules (SP250-270W, SP290-415W) in Thailand using a German automatic production line. It sells these as standalone hardware products and bundles them into complete Solar PV Rooftop Systems, complemented by full EPC services (site survey, system design, installation, commissioning) and after-sales operations and maintenance with an online monitoring platform.

Product overview

Solartron is a one-stop-service solar technology company offering a vertically integrated portfolio of solar products and services. Its core product lineup comprises silicon solar cells (SLT156P4B 4-busbar and SLT156P5B 5-busbar) and solar modules (SP250-270W and SP290-415W series), all manufactured in Thailand using German automatic production line technology. These are sold as standalone products and bundled into complete Solar PV Rooftop Systems for residential, commercial, and industrial segments. The portfolio is supported by engineering services (survey, design, installation, and O&M), an online Solar Monitoring System, and the SOLARPVONLINE.COM web platform. The company serves customers across Thailand with nationwide installation and after-sales maintenance capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• SLT156P4B Solar Cell Multicrystalline silicon solar cell with 4-busbar (4BB) design, featuring 100% in-line optical inspection, shunt resistance testing, and hot-spot prevention, with reference cells calibrated by Fraunhofer ISE Germany. Sold as a standalone hardware component for module assembly.
• SLT156P5B Solar Cell Multicrystalline silicon solar cell with 5-busbar (5BB) design, featuring optical inspection, shunt resistance testing, and hot-spot prevention, calibrated by Fraunhofer ISE Germany. Sold as a standalone hardware component for higher-efficiency module assembly.
• SP250-270W Solar Module Multicrystalline silicon solar module in the 250–270W power range, featuring 5-busbar (5BB) cell technology, designed for residential, commercial, and industrial rooftop applications. Sold as a standalone hardware product.
• SP290-415W Solar Module Multicrystalline silicon solar module spanning 290W to 415W power output, designed for residential, commercial, and industrial rooftop installations. Sold as a standalone hardware product.
• Solar PV Rooftop System Complete solar photovoltaic rooftop system that converts sunlight into electricity via solar modules and grid-tie inverters, for self-consumption or selling electricity to MEA/PEA. Key components include Solartron solar modules, mounting structures, DC/AC junction boxes, and grid-tie inverters. System sizes range from 5 kW to 1 MW+ for residential, commercial, and industrial customers.
• Survey, Design, Installation and Maintenance Services Engineering services covering site survey, system design by expert engineers, installation with quality components, and after-sales maintenance including system checks every 6 months, delivered nationwide in Thailand by Solartron's professional technical teams.
• SOLARPVONLINE.COM Monitoring Platform Web-based online monitoring platform (SOLARPVONLINE.COM) enabling customers to check energy savings and solar system performance from anywhere at any time.

Quantifiable outcome

• 25-year panel lifespan with efficiency degradation not exceeding 20% within first 20 years
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• BCPG: SET-listed Thai renewable energy arm of Bangchak Corporation (SET:BCPG). Comparable as a Thailand-focused renewable/solar energy operator and developer with utility and commercial project exposure.
• Gunkul Engineering: SET-listed Thai electrical contractor and solar power developer (SET:GUNKUL). Compares as a domestic Thailand-based solar EPC and equipment provider serving commercial and industrial customers.
• Energy Absolute: SET-listed Thai renewable energy company (SET:EA) operating across solar power generation, biofuels, and EV/battery businesses. Highly comparable as a domestic Thai energy platform with overlapping solar customer segments.
• Symbion Energy: US- and Asia-based solar and storage EPC/developer with Southeast Asian project exposure. Comparable as a regional solar EPC focused on commercial and industrial customers with project execution capabilities.

Broad incumbents

• JA Solar: Global Tier-1 solar cell and module manufacturer. Comparable product category (crystalline silicon PV modules) with overlapping export channels into Asia, EU, and US markets.
• JinkoSolar: Global Tier-1 solar module and cell manufacturer with vertically integrated production. Overlaps with Solartron on crystalline silicon cell and module offerings and on multi-regional export certifications.
• Trina Solar: Global Tier-1 solar module manufacturer with vertically integrated cell and module production. Directly comparable on product (crystalline silicon modules) and adjacent on scale and export reach.
• Canadian Solar: Global solar module manufacturer and project developer with vertically integrated cell-to-system operations. Overlaps with Solartron on module manufacturing and utility/commercial-scale solar project execution.
• LONGi Green Energy: World's largest monocrystalline silicon wafer and module manufacturer. Comparable as a crystalline silicon cell/module producer, though substantially larger and on a more advanced technology roadmap.
• First Solar: Global thin-film solar module manufacturer and large-scale project developer. Compares as a multinational solar module/PV company operating in adjacent (thin-film) technology stacks, competing in overlapping utility and commercial segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/SolartronPLC

Compliance20 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Solartron