Seoul Energy

What Seoul Energy does

Seoul Energy Corporation (서울에너지공사) is a public enterprise wholly owned by Seoul Metropolitan Government, established in 1985 as Korea's first district heating operator. The company supplies collective/district heating, hot water, and cooling to 263,511+ residential households and 455+ commercial buildings across two designated service zones in Seoul — the western Yangcheon/Gangseo/Guro area (133,553 households, 411 buildings, 784 Gcal/hr capacity) and the eastern Nowon/Dobong/Jungnang area (129,958 households, 44 buildings, 426 Gcal/hr capacity). Operations are built around combined heat and power (CHP) facilities fueled primarily by LNG, with on-site turbine generators of 30.2MW (Yangcheon) and 37MW (Nowon), supplemented by waste heat recovery (13% of supply as of 2021) and supported by 119.1km and 84.5km of dual-pipe distribution networks in the western and eastern zones respectively.

Beyond district heating, Seoul Energy operates three additional business lines: solar power generation across 15 plants in Seoul totaling 7,165kW (including installations at Seoul Metro depots, expressway sites, and transit hubs); EV fast-charging infrastructure for public facilities, anchored by a 2026 Korea Environment Corporation contract covering 249 chargers and a Seoul Metropolitan Government contract for 12 dual-type fast chargers plus 8 canopy structures; and energy welfare programs (On-tong Welfare Service, Energy Voucher) providing subsidized heating to low-income, disabled, veteran, and multi-child households.

Revenue is generated primarily through a regulated subscription model combining fixed monthly basic charges (scaled to contracted area) and usage charges (metered consumption), with seasonal winter/summer/spring-fall pricing and LNG-indexed adjustment mechanisms capped by government oversight. The 2025 heat fee freeze at 0% under Article 57 of heat supply regulations illustrates the regulatory ceiling on pricing power. Distribution occurs through owned pipe infrastructure for heating, government procurement contracts for EV charging, and grid-sale arrangements for solar generation. The company is not listed, has no disclosed funding rounds, and operates as a local public corporation under municipal government oversight rather than as a market-rate enterprise.

Name

Seoul Energy

Legal name

Seoul Energy Corporation

Website

https://i-se.co.kr

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

251–500 employees

Short description

Seoul Energy Corporation (서울에너지공사) is a Seoul Metropolitan Government-owned public utility providing district heating, district cooling, solar generation, and EV fast-charging services to 263,511+ households and 455+ buildings across designated Seoul service zones under Korea's Collective Energy Business Act.

Ownership category

akta.pro rank

Product category

District Energy Services

NAICS

Steam and Air-Conditioning Supply (221330), Solar Electric Power Generation (221114), Electric Power Generation (22111), Electric Power Generation, Transmission and Distribution (2211), Electric Power Transmission, Control, and Distribution (22112)

SIC

Cogeneration Services & Small Power Producers (4991), Electric Services (4911), Electric, Gas & Sanitary Services (4900), Electric & Other Services Combined (4931)

akta.pro primary industry

District Energy & Community CHP (District Heating/Cooling Networks) (EUACAKAH)

akta.pro secondary industries

District Energy & CHP-Based Microgrids (Thermal Networks + Power) (EUACALAL), Solar Project Development & IPP (Utility-Scale & Rooftop) (EUAMABAA), Distributed Generation (DG) Solar & Small Wind (EUAMAJAD), Onsite Low-Carbon Heat & CHP (Electrified CHP, Fuel Cells, Renewable CHP) (EUABAJAI)

Keywords

• District heating services
• District cooling services
• Combined heat and power
• Solar power generation
• EV charging infrastructure

Headquarters

HQ city

Yangchongu

HQ country

South Korea

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. District Heating Supply: Revenue from supplying heating and hot water to residential apartments and commercial buildings. Pricing consists of basic charges (fixed monthly based on contracted area) and usage charges (based on metered consumption)
2. EV Charging Infrastructure: Operation and management of EV fast charging stations for public facilities, including dual-type fast chargers and canopy structures
3. Solar Power Generation: Generation and sale of solar power from 15 operational plants across Seoul including rooftop installations at Seoul Metro facilities, expressway areas, and public facilities
4. Energy Welfare Services: Subsidized heating support programs for vulnerable populations including basic livelihood security recipients, disabled persons, and multi-child households, funded through government support mechanisms

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Seoul Energy Corporation is a Seoul Metropolitan Government-owned public utility that supplies centralized district heating, district cooling, and hot water to approximately 263,000 households across western and eastern Seoul via owned pipe networks and combined heat and power (CHP) plants fueled by LNG. Beyond core thermal energy, the company operates 15 solar PV plants totaling 7,165kW, deploys and manages public EV fast-charging infrastructure under government contracts, and runs subsidized Energy Welfare programs for vulnerable populations.

Product overview

Seoul Energy Corporation operates as Seoul Metropolitan Government's energy utility providing district heating, district cooling, and renewable energy services. The company's core portfolio consists of: (1) Collective Energy/District Heating - the foundational service supplying heating and hot water to 133,553 households and 411 buildings in western Seoul (Yangcheon, Gangseo, Guro districts) plus 129,958 households in eastern Seoul (Nowon, Dobong, Jungnang districts); (2) District Cooling for summer air conditioning; (3) Solar Power Generation with 15 operational plants totaling 7,165kW; (4) EV Charging Infrastructure for eco-friendly vehicles; and (5) Energy Welfare Programs including On-tong and Energy Voucher services for eligible citizens. The company also offers customer services including heat bill inquiry, leak reporting, and facility tours.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Waste heat utilization at 13% of district heating supply (2021 baseline)
• +1 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• CHAEVI (차가Ev)coreChannel Partner/ Reseller/ Distributor · 25 June 2026CHAEVI, Korea's largest public EV fast-charging infrastructure operator, awarded government contracts for EV charger manufacturing and installation. Seoul Energy awarded contract for 12 dual-type fast chargers and 8 canopy structures. Technical specifications require 95% energy conversion efficiency, 20,000 insertion cycle durability, and OCPP 1.6 cybersecurity certification.
• Korea Environment Corporation (K-eco)coreStrategic or Co-development Partner · 25 June 2026Government environmental agency awarding EV charging infrastructure contracts. Seoul Energy won Zone 4 of the 2026 Public EV Fast Charger Manufacturing and Procurement Project, covering southern regions with 136 standalone 100-kW chargers and 113 simultaneous 200-kW chargers.
• Korea District Heating Corporation (한국지역난방공사)minorStrategic or Co-development PartnerRelated state-owned energy company sharing district heating expertise and industry best practices
• Seoul Metropolitan Government (서울특별시)coreGTM or Marketing PartnerParent municipality providing strategic direction, funding for energy welfare programs, and public facility access for EV charging and solar installations

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Korea District Heating Corporation: National Korean district heating company (한국지역난방공사) operating across Korea. Seoul Energy explicitly references KDHC as a strategic partnership for shared expertise and best practices, and both operate under the same Collective Energy Business Act with CHP-based district heating as core business.
• CHAEVI: Korea's largest public EV fast-charging infrastructure operator and Seoul Energy's named partner on the 2026 government EV charging contract. Direct overlap in public-sector EV fast charging deployment with OCPP 1.6 certified hardware.
• SK Signet: Korean EV charging hardware manufacturer and operator serving public charging networks. Competes for the same government EV charger procurement contracts (2026 Public EV Fast Charger Manufacturing and Procurement Project) that Seoul Energy won Zone 4 of.

Broad incumbents

• SK E&S: Korea's largest private LNG supplier and district energy operator, providing combined heat and power, district heating, and LNG city gas services. Operates on a much larger scale than Seoul Energy across multiple Korean regions with broader energy portfolio including renewables.
• Korea Electric Power Corporation (KEPCO): Korea's national electric utility and Seoul Energy's partner for electricity supply and CHP turbine operations. KEPCO provides the grid backbone that Seoul Energy's solar plants feed into and supports CHP power generation. Overlapping in electricity generation/transmission/distribution.
• Korea Gas Corporation (KOGAS): Korea's state-owned LNG importer and distributor, supplying natural gas infrastructure used in Seoul Energy's CHP operations. Direct upstream fuel supplier relationship and parallel role as a government-owned energy utility serving Korean end-users.
• POSCO International (formerly POSCO Energy): Operates LNG combined-cycle power plants and district heating in Korea with broader energy trading and infrastructure portfolio. Direct overlap with Seoul Energy's CHP-based district heating model but at larger scale across multiple regions.
• GS Energy: Korean energy company with power generation, district energy, and renewable energy operations. Operates GS Power and affiliated district heating businesses, overlapping with Seoul Energy's CHP/heat/power business model across Korea.
• Korea South-East Power (KOEN): State-owned Korean power generation company under KEPCO umbrella operating thermal, combined heat and power, and renewable generation. Comparable CHP and renewable generation capability to Seoul Energy at larger national scale.

Emerging players

• Hyundai E-Pit: Hyundai Motor Group's EV ultra-fast charging network. Direct competitor in Korea's public EV charging market with strong brand and OEM backing, competing for the same charging infrastructure deployments Seoul Energy pursues.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCMMp6lsHULBQ-813IMmnuNg
• Facebookfacebook.com/SeoulEnergy
• Instagraminstagram.com/seoulenergy.official

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Seoul Energy