Etelä-Savon Energia

What Etelä-Savon Energia does

Etelä-Savon Energia Oy (ESE) is a regionally licensed Finnish energy utility headquartered in Mikkeli, South Savo, in continuous operation since 1900. The company supplies district heating (kaukolämpö) and — through its wholly owned subsidiary ESE-Verkko Oy — operates the exclusive electricity distribution network for the Mikkeli region. A second wholly owned subsidiary, ESE-Tekniikka Oy, provides electrical contracting services spanning installation, maintenance, network construction, street lighting, traffic signals, and storm-damage repair. ESE also operates the Pursiala power plant (Pursialan voimalaitos), the core asset for local heat and power generation.

Revenue is generated through three primary streams: subscription-style district heating sales to residential and commercial customers under tiered products (Rento, Nuuka, Eko Alkuperätakuu, Eko Aurinko); regulated electricity distribution network fees collected by ESE-Verkko Oy; and professional-services revenue from ESE-Tekniikka Oy's contracting work. Customer interaction occurs primarily through the ESEOnline self-service portal (requiring strong bank authentication), a public electrical-disturbance map, online fault reporting, and dedicated service phone lines for electricity and district heating faults. Pricing is published on the company website and billed monthly, with electricity connection tariffs restructured effective 1 June 2026.

Ownership underwent a significant change in November 2023, when abrdn plc's Infrastructure team acquired a 49% stake from the City of Mikkeli with local authority approval. The capital is being directed toward the company's energy transition and grid modernization, including a new main automation system rollout at the Pursiala plant and a broader push into renewable-certified products, hybrid heating offerings for housing companies, and small-scale generation (pientuotanto) and energy-community (energiayhteisöt) models inside the existing DSO footprint.

Name

Etelä-Savon Energia

Legal name

Etelä-Savon Energia Oy

Website

https://ese.fi

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

51–100 employees

Short description

Etelä-Savon Energia Oy is a Finnish regional energy utility, founded 1900 and headquartered in Mikkeli, providing district heating and licensed electricity distribution to residential and commercial customers in the South Savo region via subsidiaries ESE-Verkko Oy and the Pursiala power plant.

Ownership category

akta.pro rank

Product category

Regional Energy Utility (District Heating & Electricity Distribution)

NAICS

Electric Power Distribution (221122), Steam and Air-Conditioning Supply (221330), Electric Power Generation (22111)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Distribution Network O&M (MV/LV Lines, Switchgear, Transformers) (EUAEAGAE)

akta.pro secondary industries

Thermal Power Plant O&M (Coal, Gas, Oil) (EUAEAGAA), Energy & Sustainability Management (Energy Audits/Optimization/Carbon & ESG Programs) (IMAIAAAM)

Keywords

• District heating services
• Electricity distribution
• Regional energy utility
• Electrical contracting
• Power plant operations

Headquarters

HQ city

Mikkeli

HQ country

Finland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. District heating sales: Sale of district heating (kaukolämpö) to residential and commercial customers in Mikkeli.
2. Electricity distribution (network) fees: Charges for electricity transmission and distribution through ESE-Verkko Oy's distribution network.
3. Electrical contracting services: Electrical installation, maintenance, and construction services through ESE-Tekniikka Oy, including street lighting and traffic signals.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Etelä-Savon Energia Oy (ESE) is a regional energy company that produces and distributes district heating (kaukolämpö) and operates the local electricity distribution network through its subsidiary ESE-Verkko Oy in the Mikkeli area of Finland. The company also delivers electrical installation and contracting services via ESE-Tekniikka Oy, and produces heat and power at the Pursiala power plant. Customers access these services through the ESEOnline portal, fault-reporting channels, and dedicated service numbers.

Product overview

Etelä-Savon Energia Oy (ESE) is a regional energy company based in Mikkeli, Finland, operating primarily as a utility provider. The company has delivered energy, heat, and wellbeing to the Mikkeli region for over 125 years. The product portfolio centers on two core infrastructure services: Kaukolämpö (district heating) distribution and Sähköverkko (electricity grid) distribution through subsidiary ESE-Verkko Oy. Supporting services include Sähköurakointi (electrical contracting) for installation and maintenance, ESEOnline customer portal for energy consumption monitoring, and fault reporting systems. The company also operates the Pursialan voimalaitos (Pursiala power plant) for energy and heat production. Recent investment from abrdn (49% stake acquisition in 2023) aims to support the company's transition to renewable energy and sustainable growth.

Differentiator

Problem solved

Functional benefit

Brands

• ESEOnline: Customer portal service providing comprehensive information about customer's own energy usage. Service requires registration and strong authentication with bank credentials.

Products and services

• Kaukolämpö (District Heating) Centralized district heating service providing heat to residential and commercial properties connected to the ESE heating network in the Mikkeli region. Available in four pricing tier products (Rento, Nuuka, Eko Alkuperätakuu, Eko Aurinko) with publicly published price list.
• Sähköverkko (Electricity Distribution Grid) Electricity grid distribution and management services delivered through subsidiary ESE-Verkko Oy, serving the Mikkeli region as the local distribution system operator. Includes grid connections, network transfer within ESE-Verkko area, electricity metering, and support for small-scale production and energy communities.
• Sähköurakointi (Electrical Contracting Services) Electrical installation, maintenance, and construction services delivered through subsidiary ESE-Tekniikka Oy. Includes maintenance of electrical equipment, network construction, area lighting, event and area electrification, connection cabling, street lighting and traffic signals, storm damage repairs, and substation work.
• Hybridi-kaukolämpö (Hybrid District Heating) Hybrid district heating product designed for housing companies (taloyhtiöt), combining traditional ESE district heating with additional features for property-level heating optimization.
• ESEOnline Customer Portal Customer self-service portal providing comprehensive information about individual energy usage. Registration requires strong authentication using bank credentials; subsequent access uses email and password.
• Vikatilanteet (Fault Reporting Service) Service for customers to report fault situations within the ESE service area, including electricity distribution faults, heating distribution faults, and street/park/traffic light faults, via online forms and dedicated 24/7 telephone numbers.
• Sähkönjakelun häiriökartta (Electricity Distribution Disturbance Map) Real-time public map service showing regional distribution disruptions in the electricity network operated by ESE-Verkko Oy in the Mikkeli area.
• Pursialan voimalaitos (Pursiala Power Plant) Owned power plant located in Pursiala, Mikkeli, used for combined energy and heat production to supply the ESE district heating network and the wider electricity system.

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/eseoy
• LinkedInlinkedin.com/company/ese-finland

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 records

Funding overview

Funding rounds1 record

Investors1 record

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 Etelä-Savon Energia