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Sieyuan Electric Key visual - imagine future city

Smarter Power・Better Life

Global Leading Provider of Power Equipment, Solutions & EPC Services

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Picture of Sieyuan EPC substation

Sieyuan Global Cases

From grid upgrades to hyperscale campuses, our projects show what reliable power looks like in practice.

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Sieyuan Electric GIS Factory Robot Arm

Industries We Serve

Sieyuan Electric supports mission-critical sectors, including data centers, utilities and rail transit, with power systems built for uptime, safety and scale.

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  • 2025 Revenue (USD)

    4,241 Million

  • 2025 R&D Investment (USD)

    191 Million

  • Global Employees

    11,007

  • Countries & Regions Served

    100 +

  • Years of Industry Experience

    30+

Product Portfolio

Sieyuan Global Projects

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66 kV amplitude-phase corrector capacitor racks installed for an offshore wind VSC-HVDC platform

Stabilizing Offshore Wind VSC-HVDC Systems with 66 kV Amplitude-Phase Correctors

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145 kV mobile substation unit deployed at a Saudi Electricity Company site

Saudi Arabia SEC 145kV Mobile Substation EPC Project

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Solar photovoltaic array and battery energy storage system powering a remote Qinghai Plateau township

Off-Grid Microgrid Project in Qumahe Township, Qinghai Province

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Sieyuan HV AC resonant test system deployed for 500 kV cable withstand voltage testing

500 kV Cable AC Withstand Voltage Testing with Sieyuan HV AC Resonant Test System

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Sieyuan 230 kV gas-insulated switchgear commissioned at Singapore's Upper Jurong I substation

Singapore Upper Jurong I Substation 230kV GIS Project

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Sieyuan 420 kV gas-insulated switchgear at the main substation of a polysilicon plant in Oman

420 kV GIS Solution Powering Oman's High Purity Silicon Industry

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Stylized 3D model of a city with power plants, substations, factories and renewable energy
Solar and Wind Farm in rural area with green trees and grass

Sustainability

Sieyuan pursues sustainable growth that creates both social and economic value.

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Sieyuan Global Footprint

Market footprint
Office

  • Manufacturing Facilities

    16+

  • R&D Centers

    10

  • Global Service Centers

    10+

  • Offices Worldwide

    30+

  • Patents

    1,033

News

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Sieyuan HV AC resonant test system set up beside a transmission tower at an outdoor site

Sieyuan Electric HV AC Resonant Test System Completes a Milestone Test for Global Power Grids

2026-07-08

Sieyuan TROM-800 online DGA monitoring device for power transformers

Sieyuan TROM Series DGA Products Have Successfully Obtained Three Top-Tier International Certifications: CE, cETLus and IECEE CB.

2026-07-28

Sieyuan grid model in PSS®E covering 13,000+ buses across thermal, hydro, wind and solar plants

AI-Assisted Power System Engineering: Rebuilding a 13,000-Bus Grid Model in PSS®E

2026-07-21

Sieyuan HV AC resonant test system set up beside a transmission tower at an outdoor site

Sieyuan Electric HV AC Resonant Test System Completes a Milestone Test for Global Power Grids

2026-07-08