QTC Energy

What QTC Energy does

QTC Energy Public Company Limited (SET: QTC) is a Thailand-based, originally electrical-transformer manufacturer founded in 1996 that has expanded into an integrated energy-equipment and services group. Its core Made-to-Order transformer portfolio spans Oil Type, Dry Type, and Super Low Loss units, with the Amorphous Transformer (over 70% loss reduction) positioned as its strategic Hero Product. The group also distributes solar inverters, mono- and bi-facial panels, and LAPP-branded cables, deploys EV chargers and electric-motorcycle battery swap stations, and operates energy-storage systems under the QTC ESS subsidiary.

Revenue is generated primarily through direct, custom-configured hardware sales to government utilities and large industrial customers via enterprise field sales; the กฟน. Super Low Loss Transformer contract (over 700 million THB) illustrates the project-tender character of the franchise. Seven wholly-owned subsidiaries (QTC RE, QTCGP, Q Solar 1, QTC EV, PPWE, QTC ESS) plus the QTMC joint venture (51% with Italy's TMC Transformers S.p.A.) extend the model into renewable IPP generation, EV charging infrastructure, and international dry-type transformer sales across five Asian and Oceanian markets. Customer segments split between electricity authorities (กฟน., PEA), private industrial and commercial buyers, and renewable energy project developers; a smaller consumer-facing EV battery-swap channel targets Bangkok motorcycle riders.

FY2568 (2025) revenue was 1,615 million THB (~70% transformers, ~27% solar), versus 1,515 million THB in FY2567, with a 1,700 million THB backlog by Q1/2569 and an FY2569 management revenue target of 2,000 million THB. The company operates a Bangkok head office and Rayong manufacturing facility, holds SET ESG Rating AA, CGR 5-star for 11 consecutive years, and a broad slate of ISO and Thai Industrial Standards certifications.

Name

QTC Energy

Legal name

QTC Energy Public Company Limited (บริษัท คิวทีซี เอนเนอร์ยี่ จำกัด (มหาชน))

Website

https://qtc-energy.com

Company type

Public

Founded year

1996

Operating status

Operating

Headcount range

101–250 employees

Short description

QTC Energy is a Thailand-based manufacturer of made-to-order electrical transformers (Oil, Dry, Super Low Loss, Amorphous) that has expanded into solar distribution, EV charging infrastructure, energy storage, and renewable power generation through seven subsidiaries and the QTMC joint venture, selling primarily to government utilities and large industrial customers.

Ownership category

akta.pro rank

Product category

Power Transformer Manufacturing

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Battery Manufacturing (335910), Electric Power Generation (22111)

SIC

Power, Distribution & Specialty Transformers (3612), Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)

akta.pro secondary industries

Solar Inverters, Power Electronics & MLPE (String/Central Inverters, Optimizers, Microinverters) (EUAMABAE), Power Electronics for Renewable & Grid-Tied Applications (Solar inverters, wind converters, grid-tie interfaces) (IMAGADAJ), Solar Inverters, Power Optimizers & MLPE Manufacturing (EUAMAHAB)

Keywords

• Electrical transformers
• Solar energy systems
• EV charging infrastructure
• Energy storage systems
• Renewable power generation

Headquarters

HQ city

Bangkok

HQ country

Thailand

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Transformer Manufacturing and Sales: Core revenue stream from manufacturing and selling custom electrical transformers (Oil Type, Dry Type, Super Low Loss, Amorphous) to government utilities and private industrial customers on a Made-to-Order basis. Includes repair and maintenance services.
2. Solar Products Distribution: Distribution of solar products including inverters, mono-facial and bi-facial solar panels, and cables & connectors (LAPP brand). Revenue contributed 434 million THB in FY2568.
3. EV Charging Infrastructure: Revenue from EV charger products and services, including charging stations for passenger EVs, commercial EVs, and battery swap stations for electric motorcycles. Generates passive income from electricity sales and long-term contracts.
4. Renewable Energy Generation (via QTCGP): Through subsidiary QTC Global Power (QTCGP), the company operates renewable power plants (solar, hydro, biomass, wind) under Power Purchase Agreements (PPAs) with customers in Thailand and Asia.
5. Energy Storage System (ESS): Battery-based energy storage solutions for grid stability and renewable energy integration.

Go-to-market motion2 records

Distribution channels6 records

Marketing channels5 records

Core offering

QTC Energy manufactures and distributes custom electrical transformers (Oil Type, Dry Type, Super Low Loss, and Amorphous) on a Made-to-Order basis, alongside solar energy products (inverters, mono/bi-facial panels, LAPP cables), EV charging infrastructure (chargers and battery swap stations), and battery-based energy storage systems. The company also operates renewable power plants (solar, hydro, biomass, wind) through its subsidiary QTC Global Power (QTCGP) under Power Purchase Agreements.

Product overview

QTC Energy operates as a manufacturer, distributor, and complete technology services provider in the energy and electricity business. The company operates under a Transformation 3 Business strategy focusing on three core pillars: Transformers, Solar, and EV. The transformer business includes Oil Type Transformers, Dry Type Transformers, and Super Low Loss Transformers (with Amorphous Transformers as the Hero Product). The solar business encompasses inverters, solar panels (mono-facial and bi-facial), and cables. The EV business includes EV chargers for vehicles and battery swap stations for motorcycles. The company also operates subsidiaries including QTC GP (renewable energy generation), QTC EV (charging infrastructure), QTC ESS (energy storage), and joint venture QTMC for international dry type transformer expansion.

Differentiator

Problem solved

Functional benefit

Brands

• QTC RE: Renewable energy solutions subsidiary focusing on clean energy technologies
• QTC Global Power (QTCGP)
• QTC EV
• Q Solar 1
• QTC ESS
• QTMC

Products and services

• Oil Type Transformer

Quantifiable outcome

• Super Low Loss Transformer reduces energy losses by over 70% vs. conventional transformers
• +3 more outcomes

Named customers2 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

Feature4 records

Partnerships

Four partnerships are on record, tiered moderate and core.

• King Mongkut's University of Technology North Bangkok (มจพ.)moderateStrategic or Co-development Partner · 1 December 2025MOU for academic and research cooperation focused on high-efficiency transformer design, energy-saving materials, renewable energy, battery energy storage systems, and AI/IoT applications for Thailand's energy infrastructure. Also includes student internship programs and Train the Trainer initiatives with industry experts.
• TMC Transformers S.p.A.coreStrategic or Co-development Partner · 1 October 2025Joint venture established as QTMC Co., Ltd. (QTC Global Power 51%, TMC Transformers 49%) to manufacture and distribute dry-type transformers. QTC leverages this partnership to expand internationally to Singapore, Malaysia, Indonesia, Vietnam, and Australia, targeting increased global sales.
• MOVE EV X (The Move Thunder Co., Ltd.)coreStrategic or Co-development Partner · 1 August 2025Joint investment agreement between QTC Global Power (QTCGP) and MOVE EV X to expand electric motorcycle battery swap stations across Bangkok metro area. Initial 7 stations launched with 7 more planned, reaching 14 total stations. QTCGP provides EV infrastructure investment while MOVE EV X provides battery swap technology and operations platform.
• Institute of Rail Technology and Development (สทร.)moderateStrategic or Co-development Partner · 1 August 2025MOU for joint development of rail system energy and electrical technologies. QTC will study electrical systems for trains, support development of rail equipment standards in Thailand, and help develop suppliers to enter Thailand's train manufacturing supply chain.

Scale indicators16 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Energy Absolute (EA): Thai-listed renewable energy company with solar, wind, biomass, and EV charging/battery operations. Comparable to QTC's diversified energy ecosystem (renewable generation via QTCGP + EV charging) but with a much larger renewable generation footprint and a Nasdaq-listed subsidiary.
• TDG (Thai-Daichi) / Ekarat Engineering (AKR): Thai-listed transformer manufacturer with a Made-to-Order model serving MEA, PEA, and private industrial customers. Directly comparable to QTC as a domestic peer in the same product category with overlapping customer base and Thai utility tender exposure.
• TMC Transformers S.p.A. Italian dry-type transformer manufacturer now in 49%-owned joint venture with QTC (QTMC). Directly comparable in dry-type transformer technology and serves Southeast Asian markets through the JV — a strategic partner and direct competitor outside the JV territory.

Broad incumbents

• Siemens Energy: Manufactures power and distribution transformers, grid technology, and is a major global player in grid modernization. Comparable to QTC's transformer focus but as a broad incumbent with global R&D, including amorphous metal transformer technology.
• ABB: Global incumbent manufacturing transformers, switchgear, and grid equipment, with strong ASEAN presence. Highly comparable to QTC's transformer and grid equipment business but operating at global scale across electrification, motion, and process automation.
• Delta Electronics (Thailand): Thailand-based power electronics and EV charging manufacturer with significant solar inverter and EV charging infrastructure operations. Comparable to QTC's solar distribution and EV charging components but at much larger scale as a subsidiary of Delta Electronics.
• Schneider Electric: Global leader in power distribution equipment and transformers, with deep presence across Southeast Asia. Comparable to QTC as a broad incumbent in the same product category (transformers, switchgear, power equipment) but with vastly greater scale and a much wider portfolio.
• Hitachi Energy: Global transformer manufacturer and grid solutions provider, with a strong portfolio of high-efficiency and specialty transformers. Directly comparable to QTC's transformer business as a broader incumbent with more advanced technology and broader geographic reach.

Regional players

• Sermsang Power Corporation: Thai-listed renewable power producer with solar, wind, and biomass generation across Thailand and Southeast Asia. Comparable to QTCGP's renewable generation business but focused exclusively on renewables with no transformer manufacturing integration.
• Charoen Energy and Water Asia (CEWA): Thai-listed engineering and energy company with transformer distribution and power infrastructure projects. Comparable to QTC's transformer business and project-based renewables, but operates as a regional engineering services and infrastructure player rather than a transformer manufacturer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@qtcenergyplc.?app=desktop
• Facebookfacebook.com/QTCENERGYPCL
• Instagraminstagram.com/qtcenergy.official
• TikToktiktok.com/@qtc.energy.pcl
• LinkedInlinkedin.com/company/qtc-energy-pcl-qtc-

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries7 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 QTC Energy