SEPCO1

What SEPCO1 does

SEPCO1 Electric Power Construction Corporation is a Chinese state-owned engineering, procurement, and construction (EPC) contractor specializing in utility-scale power generation and transmission infrastructure, founded in 1952 as the 22nd Engineering Department of the Shanghai Infrastructure Construction Bureau and now operating as a key subsidiary of Power Construction Corporation of China (POWERCHINA, Fortune 500). The company designs and constructs thermal power plants (including 660MW and 1000MW ultra-supercritical units), combined cycle gas-fired power plants, transmission lines, and substations, with a smaller municipal infrastructure line and an emerging solid waste resource utilization business developed through a 2023 joint platform with ITIBMIC. It holds over 30 specialized qualifications, headlined by the Grade A+ general contracting qualification for power plant projects and Grade I boiler erection, and has delivered more than 850 generating units totaling 160GW+ of installed capacity, including 9GW+ of cumulative gas turbine capacity.

SEPCO1's core technology base spans ultra-supercritical thermal power, indirect air cooling, and combined cycle gas turbine (CCGT) systems, evidenced by world-record installations such as Yuanyang Lake's 1000MW indirect air-cooled ultra-supercritical unit and Asia's first 9FB gas turbine (Beijing Gaojing). In March 2025, the National Development and Reform Commission designated SEPCO1 a 'National Center for Enterprise Technology' — the first construction enterprise within POWERCHINA to receive this state-level R&D platform status — validating its in-house innovation capability. Recent performance metrics on flagship projects (sub-60µm turbine vibration, zero-leakage welding across 78,320 boiler joints, 28-day cable-laying to back-charging on Shangluo) demonstrate operational maturity that is difficult to replicate.

Revenue is generated almost exclusively through fixed-price EPC contracts secured via direct enterprise sales and competitive bidding from state-owned and private power generation utilities, with no public pricing, no recurring software/SaaS layer, and no consumer channel. Named customers include Huaneng, Datang, Huadian, Chongqing Huadian, SIGC (Shangluo), and State Grid Shandong, alongside international projects in Myanmar (Kyaukpyu 135 MW CCGT, commissioned 2023) and Kazakhstan (Almaty CHP-2, signed 2023). Distribution is wholly direct — leveraging POWERCHINA's diplomatic and commercial channels for international access — and the company's go-to-market combines event participation (e.g., the Second National Conference on Solid Waste Resources, Jinan 2023), project portfolio PR, and competitive bidding on public utility procurement.

Name

SEPCO1

Legal name

SEPCO1 Electric Power Construction Corporation

Website

https://en.sepco1.com

Company type

Private

Founded year

1952

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

SEPCO1 is a Chinese state-owned EPC contractor, founded in 1952 and part of POWERCHINA (Fortune 500), that designs and constructs utility-scale thermal, gas-fired, and combined cycle power plants plus transmission infrastructure, serving state-owned power utilities such as Huaneng, Datang, Huadian, and SIGC across China, Myanmar, and Kazakhstan.

Ownership category

akta.pro rank

Product category

Power Infrastructure Construction

NAICS

Electric Power Generation, Transmission and Distribution (2211)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Combined Cycle & Cogeneration (CHP) EPC (EUAEAAAB)

akta.pro secondary industries

Power Plant Electrical Systems EPC (Switchyard, Transformers, Protection & Controls) (EUAEAAAM), Transmission Interconnection & Line Works (Gen-Tie Lines, Overhead/Underground Lines) (EUAMAFAF), Distribution Substations & Switching Stations (MV) EPC (EUAEACAC)

Keywords

• Power plant construction
• EPC contracting services
• Power transmission infrastructure
• Gas turbine installation
• Electrical substation construction

Headquarters

HQ city

Jinan

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Power Plant Construction (EPC): Engineering, procurement, and construction services for power generation facilities including thermal, gas turbine, and renewable energy projects. Revenue generated through fixed-price contracts for complete power plant delivery.
2. Power Transmission and Substation: Construction services for power transmission lines and substation infrastructure supporting electrical grid development.
3. Infrastructure and Municipal Projects: General construction services for municipal public projects and associated infrastructure development.
4. Solid Waste Treatment Services: Comprehensive solid waste resource utilization services including technology research, consultation, and one-stop solutions for local government and enterprises.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

SEPCO1 is an electric power engineering and construction company that provides full-scope EPC (Engineering, Procurement, and Construction) services for power generation facilities including thermal, gas-fired, combined cycle, and renewable power plants, alongside power transmission line and substation construction services. The company also delivers municipal infrastructure construction and, through partnership with ITIBMIC, comprehensive solid waste resource utilization services.

Product overview

SEPCO1 offers integrated power construction services through four main business lines: Power Plant EPC General Contracting covering design, procurement, and construction of thermal, gas-fired, and combined cycle power plants; Power Transmission and Substation for electricity delivery infrastructure; Infrastructure Construction for municipal public projects; and Solid Waste Treatment as an emerging strategic business. The company operates as a single unified service platform with over 30 engineering qualifications enabling turnkey project delivery from 660MW ultra-supercritical units to 1000MW installations, with growing capabilities in gas turbine construction exceeding 9GW cumulative installed capacity.

Differentiator

Problem solved

Functional benefit

Products and services

• Power Plant EPC General Contracting Full-scope engineering, procurement, and construction (EPC) services for power generation facilities including thermal, gas-fired, and combined cycle power plants. Capabilities span 660MW to 1000MW ultra-supercritical units and gas turbine installations, covering design, procurement, construction, commissioning, and trial run operations. Targeted at state-owned and private power generation utilities.
• Power Transmission and Substation Construction and engineering services for power transmission lines and electrical substations that enable electricity delivery from generation facilities to end users. Targeted at power grid operators and utilities.
• Infrastructure Construction Municipal public project construction services utilizing Grade A general contracting qualification for architecture construction. Targeted at government and municipal authorities for public infrastructure development.
• Solid Waste Treatment Services Comprehensive solid waste resource utilization services including technology research, disposal solutions, and industry-university-research collaboration platforms, delivered through the joint Solid Waste Treatment Technology Research Center established with ITIBMIC and Teleader Solid Waste Disposal (Shandong) Co., Ltd. Targeted at local government and enterprises.

Quantifiable outcome

• 850+ generating units delivered with total installed capacity exceeding 160GW
• +6 more outcomes

Named customers9 records

Segments3 records

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

Two partnerships are on record, tiered core.

• ITIBMICcoreStrategic or Co-development Partner · 11 April 2023SEPCO1 established the Solid Waste Treatment (Industrial Application) Technology Research Center together with ITIBMIC to focus on comprehensive utilization of solid waste resources. This partnership supports the company's strategic emerging industry development in solid waste management and creates a comprehensive Industry-University-Research service platform.
• Teleader Solid Waste Disposal (Shandong) Co., LtdcoreStrategic or Co-development Partner · 11 April 2023Joint venture established by SEPCO1 to build a comprehensive service platform for Industry-University-Research collaboration in solid waste disposal. The entity delivers one-stop solutions to local government and enterprises and creates a new highland for the incubation and promotion of scientific and technological achievements in the solid waste industry.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Dongfang Electric Corporation: Major Chinese power equipment manufacturer and EPC contractor specializing in thermal, nuclear, hydro, and gas turbine projects. Comparable as a vertically integrated Chinese state-owned power construction player with overlapping utility customer base.
• Harbin Electric Company Limited: Major Chinese power equipment manufacturer and EPC contractor with strong position in ultra-supercritical and gas turbine technology. Comparable to SEPCO1 in serving state-owned utilities with thermal and gas-fired power projects.
• China Gezhouba Group Corporation: Large Chinese state-owned EPC contractor with extensive power plant, hydropower, and infrastructure capabilities. Competes with SEPCO1 for utility-scale power projects and shares similar SOE customer relationships.
• China State Construction Engineering Corporation (CSCEC): Largest Chinese construction SOE with significant power and industrial infrastructure EPC capabilities. Overlaps with SEPCO1 on municipal, infrastructure, and industrial construction projects beyond pure power plant work.
• China Energy Engineering Corporation (CEEC): Largest Chinese power EPC group formed from the merger of CGGC and GEDI; offers full-scope power plant, transmission, and infrastructure EPC. Competes head-to-head with SEPCO1 for major thermal, gas, and renewable projects across China and overseas.

Regional players

• TBEA Co., Ltd. Major Chinese power transmission and transformer equipment manufacturer expanding into power plant EPC. Comparable as a Chinese player expanding from transmission equipment into broader power infrastructure, with overlap in transmission substation work.
• Beijing Energy International: Beijing-based power developer and investor active in Chinese and overseas power projects. Comparable as a counterparty/partner profile and gas-fired cogeneration interest (Beijing Gaojing project) overlapping with SEPCO1's CHP franchise.

Direct peers

• SEPCO III Electric Power Construction Corporation: Sister subsidiary of SEPCO1 within POWERCHINA, performing similar EPC services for thermal, gas, and renewable power plants globally. Closest comparable given shared parent, similar qualification profile, and overlapping customer base of state-owned power generators.
• China Machinery Engineering Corporation (CMEC): Chinese SOE EPC contractor focused on international power, energy, and infrastructure projects, particularly Belt & Road markets. Directly comparable to SEPCO1's overseas EPC ambitions in Southeast Asia and Central Asia.
• Shanghai Electric Power Construction: Chinese state-owned power EPC contractor with capabilities across thermal, gas, and renewable energy projects. Direct competitor for large-scale utility EPC contracts and similar customer segments to SEPCO1.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/powerchinasepco1
• LinkedInlinkedin.com/company/sepco1

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 SEPCO1