Huaming Power Equipement

What Huaming Power Equipement does

Huaming Power Equipment Co., Ltd. (legal entity: Shanghai Huaming Power Equipment Co., Ltd.) is a Chinese manufacturer of on-load tap changers (OLTCs) and de-energized tap changers — electromechanical devices embedded inside power transformers that dynamically adjust tap positions to maintain precise output voltage under varying load and input conditions. Founded in 1989 and headquartered in Shanghai, the company has grown to more than 1,600 staff across ten subsidiaries, five overseas branches (Singapore, Turkey, Indonesia, Brazil, USA), and four modern manufacturing facilities, with a core product range spanning non-vacuum, vacuum, dry-type, and gas-insulated OLTCs plus cage, drum, and linear de-energized tap changers. Its flagship CHVT converter transformer OLTC — the only moving component inside a converter transformer and capable of executing eight sequential mechanical actions within 100 milliseconds — was successfully commissioned in May 2025 at China's first large-scale integrated wind/solar/thermal/storage UHVDC transmission project (Longdong ±800kV).

The company monetizes primarily through direct B2B sales of OLTCs and related accessories (motor drive units, controllers, monitoring systems, online oil filters) to electric utilities, grid operators, and transformer OEMs, supplemented by a solar EPC business that has delivered nearly 1GWp of projects since 2016 and a CNC machine subsidiary (Shandong Fin CNC). GTM is sales-led, combining direct enterprise sales, EPC project delivery, strategic procurement partnerships (notably a 2023 framework agreement with China Electrical Equipment Group covering the XD, XJ, Pinggao, and SDEE transformer OEMs), technical seminars in emerging markets (Pakistan, Nigeria, Dubai), and category education (a co-sponsored OLTC course with Transformer Magazine). Pricing is not publicly disclosed. Anchor customers include State Grid Corporation of China, Jiangsu Huapeng Group, China Unicom's Shanghai Pujiang Cloud Data Center, and emerging-market utilities such as Pakistan's NTDC and Nigeria's TCN.

Firmographic data lists a SZSE:002270 ticker and a 2021 revenue figure of US$24,113, while the supplied financial block reports 2021–2025 revenue ranging from $241B to $347B with an EV of $2.46T; both appear to carry unit/scale inconsistencies and are not used as reliable figures in this analysis. The office footprint, subsidiary network, and visible reference projects (State Grid Longdong UHVDC, China Unicom data center, multiple national utilities) are consistent with a mid-sized industrial supplier holding a meaningful share of the global OLTC market (US$1.28B in 2025, projected US$1.97B by 2032 at 6.4% CAGR, per third-party market data), with vacuum OLTCs representing 62% of new installations in 2025.

Name

Huaming Power Equipement

Legal name

Shanghai Huaming Power Equipment Co., Ltd.

Website

https://intl-huaming.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Huaming Power Equipment is a Chinese manufacturer founded in 1989 that designs and supplies on-load and de-energized tap changers for power transformers, serving utilities, grid operators, and transformer OEMs globally, with complementary solar EPC and CNC subsidiaries.

Ownership category

akta.pro rank

Product category

Power Transformer Components

NAICS

Electric Power Transmission, Control, and Distribution (22112), Solar Electric Power Generation (221114)

SIC

Power, Distribution & Specialty Transformers (3612), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Power Electronics for Renewable & Grid-Tied Applications (Solar inverters, wind converters, grid-tie interfaces) (IMAGADAJ)

akta.pro secondary industries

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB), Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG)

Keywords

• On-load tap changers
• Power transformer components
• Voltage regulation equipment
• Solar EPC services
• Ultra-high voltage equipment

Headquarters

HQ city

Putuo

HQ country

China

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Huaming Power Equipment manufactures and sells on-load tap changers (OLTC) and de-energized tap changers used in power transformers to dynamically regulate voltage under varying load conditions. The company also provides solar power EPC services covering project development, construction, financing, operations & maintenance, and asset management, delivering integrated solutions for utility-scale solar projects worldwide.

Product overview

Huaming Power Equipment Co., Ltd. is a global leader in tap changer technology founded in 1989, headquartered in Shanghai with over 1,600 staff, 10 subsidiaries, 5 overseas branches, and 4 modern manufacturing facilities. The company's core product portfolio centers on On-Load Tap Changers (including Non-Vacuum, Vacuum, Dry Type, and Gas Insulated variants) and De-Energized Tap Changers (Cage Type, Drum Type, Linear Type), which dynamically adjust transformer tap settings to maintain precise output voltage during operation. Supporting these core products are accessories including Motor Drive Units, Controllers, Monitoring systems, and Online Oil Filters. The company has expanded into renewable energy solutions, providing Solar Power EPC services (project development, construction, financing, EPC, O&M, and asset management) with nearly 1GWp delivered since 2016. Recently, Huaming achieved a major breakthrough with the CHVT Converter Transformer On-Load Tap-Changer successfully commissioned at the Longdong ±800kV HVDC converter station, representing ultra-high voltage product integration.

Differentiator

Problem solved

Functional benefit

Products and services

• On-Load Tap Changer Primary product line for dynamically adjusting transformer tap settings during operation to maintain precise output voltage alignment. Includes Non-Vacuum Type, Vacuum Type, Dry Type, and Gas Insulated Type variants. Used by power utilities, grid operators, and power transformer manufacturers.
• De-Energized Tap Changers Tap changers designed to operate only when the transformer is de-energized. Available in Cage Type, Drum Type, and Linear Type configurations. Used by transformer manufacturers and utilities for off-line voltage adjustments.
• Motor Drive Unit Motorized drive mechanism for operating tap changers, enabling remote or automatic control of tap positions. Sold alongside tap changer products.
• Controller Control unit for managing tap changer operations and voltage regulation in power distribution systems. Sold as a complement to tap changer systems.
• Monitoring System Monitoring systems for tap changers to track operational status, performance metrics, and diagnostic information. Sold alongside tap changer products.
• Online Oil Filter Equipment for filtering and maintaining transformer oil quality during operation. Sold alongside tap changer products for transformer maintenance.
• Regulator Voltage regulation equipment for power distribution systems. Sold to power utilities and grid operators.
• Solar Power EPC Services Engineering, Procurement, Construction, Operations & Maintenance (O&M), and asset management services for solar power projects including ground mounted solar, micro-grid, and booster stations. Provided nearly 1GWp of high-quality EPC services since 2016 to renewable energy developers and investors.
• CHVT Converter Transformer On-Load Tap-Changer Converter transformer on-load tap-changer designed for ultra-high voltage applications, capable of completing eight mechanical actions in sequence within 100 milliseconds during each changeover. Successfully commissioned at Longdong ±800kV HVDC converter station in China. Designed for ±800kV UHVDC converter transformers.

Quantifiable outcome

• Successfully commissioned CHVT converter transformer on-load tap-changer at Longdong ±800kV HVDC converter station — China's first large-scale integrated energy transmission project combining wind, solar, thermal, and storage
• +2 more outcomes

Named customers10 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• China Electrical Equipment GroupcoreStrategic or Co-development Partner · 20 February 2023Strategic Cooperation Framework Agreement signed February 20, 2023 between Huaming Power Equipment Co., Ltd. and China Electrical Equipment Group Supply Chain Technology Co., Ltd. Both parties committed to deepening collaboration based on mutual trust, continuity, and stability. Subsidiaries of China Electrical Equipment Group (including China XD Group, XJ Group, Pinggao Group, and SDEE Group) will procure on-load tap changers from Huaming Equipment.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Sieyuan Electric: Chinese high-voltage power transmission equipment manufacturer including transformers and switchgear. Competes in similar Chinese utility procurement channels and is also exploring UHVDC transmission products.
• Maschinenfabrik Reinhausen: The global market leader in on-load tap changers, headquartered in Germany. Direct competitor to Huaming in vacuum and conventional OLTCs for power transformers, with stronger brand recognition in Western utility markets.
• TBEA: Leading Chinese transformer manufacturer and renewable EPC contractor. Overlaps with Huaming as a transformer OEM that also procures OLTCs from third parties and competes in solar EPC.

Regional players

• Sungrow Power Supply: Leading Chinese solar inverter and renewable energy solutions provider. Overlaps with Huaming's solar EPC business and competes for renewable project developer relationships in China and internationally.

Broad incumbents

• Siemens Energy: Global power transformer and grid technology OEM that competes broadly with Huaming in high-voltage transmission equipment, including UHVDC systems where Huaming's CHVT is positioned.
• Hitachi Energy: Major power transformer and grid equipment OEM offering competing OLTC products within a broader portfolio. Competes with Huaming via bundled transformer + tap changer solutions to utilities globally.
• Eaton Corporation: Diversified power management company offering transformers, voltage regulators, and switchgear products that compete with Huaming's portfolio in industrial and utility customer segments.
• Toshiba Energy Systems: Japanese power transformer and grid equipment manufacturer with established presence in Asian and Middle Eastern utility markets. Competes with Huaming in high-voltage transmission equipment and UHVDC components.
• Schneider Electric: Global electrical equipment and grid solutions provider with transformer, switchgear, and voltage regulation offerings. Competes with Huaming in distribution-level voltage regulation equipment.

Others

• China XD Group: Major Chinese transformer manufacturer that is both a key customer (procurement partner under the Strategic Cooperation Framework) and adjacent competitor in the broader power equipment ecosystem.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/huaming

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries6 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 Huaming Power Equipement