What Østfold Energi does

Østfold Energi AS is a publicly owned Norwegian regional energy company headquartered in Sarpsborg (Grålum), founded in 1988 with operational roots stretching back to the early 1900s. The company is owned by Østfold municipalities, with Østfold fylkeskommune as the largest shareholder at 45%, and operates under a profit-sharing mandate that returns approximately 65% of profits to public owners. With 68 employees, it runs a diversified renewable energy portfolio anchored by hydropower (eight wholly-owned plants producing approximately 1.5 TWh annually plus 50% of SISO Energi in Nordland, totalling ~2.2 TWh or ~96% of output), district heating from industrial waste heat supplied by Borregaard across multiple Østfold towns (~60 GWh thermal annually), wind power through joint venture Zephyr and 50%-owned Kvalheim Kraft, and solar power through Soleie AS and the Furuseth plant. Distribution and customer engagement run through the Nord Pool wholesale market for power, direct pipeline connections to buildings for heat, the MinSide customer portal, and municipal/developer partnerships for new connections.

The core technology stack combines run-of-river and reservoir hydropower infrastructure (Borgund kraftverk alone produces ~1 TWh/year and operates under a 1974 concession), SCADA/OT control systems for plant monitoring, and a reorganized power market division split into production planning and model/system development units that run proprietary optimization models for water release timing against spot prices. Revenue mechanics are split between wholesale power generation sold into the Nordic spot market (where Østfold Energi achieved 24% above NO5 average in 2025) and contracted district heating supply to residential, commercial, and industrial customers under Norway's Norgespris fixed tariff (50 øre/kWh from 1 October 2025). Strategic projects underway include Gravdalen kraftverk (60 GWh new capacity, completion autumn 2026), the Forsetlundgropa solar plant in Fredrikstad (3.4 GWh/year, NVE-approved June 2026), and Carbon Centric, in which Østfold Energi is the largest owner, building Norway's first full-scale carbon capture facility at Rakkestad (~10,000 tonnes CO2/year). Data center land development in Sarpsborg and Våler signals an adjacent infrastructure push.

The business model is a hybrid utility/development platform: spot-market electricity trading for the bulk of revenue (price-sensitive and cyclical), regulated-style district heating contracts for stable recurring cash flow, and project-development equity stakes (Zephyr, Carbon Centric, Soleie, Kvalheim Kraft) for option value on growth verticals such as offshore wind, carbon capture, and utility-scale solar. The municipal ownership model differentiates Østfold Energi from listed Nordic utilities by aligning capital allocation with regional energy security and community returns rather than shareholder returns, while the BBB+ credit rating (Scope Ratings, November 2025) and 61% equity ratio (H1 2025) support continued capex on hydropower and district heating expansion.

Name

Østfold Energi

Legal name

Østfold Energi AS

Website

https://ostfoldenergi.no

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

51–100 employees

Short description

Østfold Energi is a publicly owned Norwegian regional energy company producing ~2.2 TWh of mostly hydropower annually and district heating across Østfold, serving wholesale power markets, residential heating customers, and property developers under a municipal ownership model that returns ~65% of profits to public owners.

Ownership category

akta.pro rank

Product category

Hydropower and Renewable Energy Generation

NAICS

Hydroelectric Power Generation (221111), Electric Power Generation, Transmission and Distribution (2211), Steam and Air-Conditioning Supply (221330)

SIC

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

akta.pro primary industry

Pumped Storage Hydropower (PSH) (New Build, Expansion, Conversions) (EUAMADAJ)

akta.pro secondary industries

Ancillary Services Aggregation & Bidding Optimization (DER/VPP participation) (EUAFALAJ), Renewable Energy Infrastructure (FSAAAKAG), Hydronic/Baseboard Radiant Heating Service (HSAOACAE)

Keywords

• Hydropower generation
• District heating services
• Wind power development
• Solar power solutions
• Renewable energy production

Headquarters

HQ city

Sarpsborg

HQ country

Norway

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Hydropower production and trading: Østfold Energi generates the majority of its revenue from hydropower generation and trading in the Nordic wholesale power market. Approximately 96% of production comes from hydropower. The company optimizes production timing to maximize spot prices, achieving 24% above average NO5 spot price in 2025. Total annual production is approximately 2.2 TWh, including the 50% share in SISO Energi in Nordland.
2. District heating (fjernvarme): District heating delivered to residential and commercial customers across Østfold using waste heat from Borregaard and other sources. Revenue comes from heating delivery contracts with property developers, housing cooperatives, and industrial customers. The company delivers approximately 60 GWh of thermal energy annually from its district heating network.
3. Wind and solar power (via ownership in Zephyr, Soleie, Kvalheim Kraft): The company holds ownership stakes in wind and solar power developers: Zephyr (Nordic wind power developer), Kvalheim Kraft (50% ownership, Kinn municipality), Soleie AS (solar panel solutions on large roofs), and Furuseth solar power plant. These provide revenue through equity method results and project development.
4. Carbon capture (via Carbon Centric): Østfold Energi is the largest owner of Carbon Centric, which is developing the world's first full-scale carbon capture plant at the waste incineration facility in Rakkestad. The captured CO₂ (up to 90% of emissions, ~10,000 tonnes annually) is initially sold to industry before permanent storage solutions become available.
5. Data center land development: The company is developing land plots for data centers in Sarpsborg and Våler, a strategic initiative supporting digital industry infrastructure in Østfold.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Østfold Energi generates and sells renewable electricity and heat. The core portfolio is hydropower (~96% of production, ~1.5 TWh from wholly-owned plants plus SISO Energi), supplemented by district heating (~60 GWh/year) using waste heat from Borregaard, wind power (via Zephyr and Kvalheim Kraft), and solar power (via Soleie AS and Furuseth solkraftverk). Power is sold primarily on the Nord Pool wholesale market, and heat is delivered via piped infrastructure to residential, commercial, and industrial customers in Østfold.

Product overview

Østfold Energi is a Norwegian renewable energy company offering a diversified portfolio of clean energy products and services. The core offerings include hydropower (the company's foundation with major facilities in Lærdal including Borgund kraftverk), district heating (using waste heat from Borregaard across Østfold), wind power (through Zephyr and Kvalheim Kraft), and solar power (via Soleie AS). The company operates eight wholly-owned hydropower plants producing approximately 1.5 TWh annually, plus district heating infrastructure serving multiple locations. Key infrastructure projects include the Gravdalen kraftverk under construction and Dam Ørje reconstruction. The company serves both B2B and B2C customers through its MinSide customer portal for district heating services.

Differentiator

Problem solved

Functional benefit

Brands

• Zephyr: Nordic wind power developer, jointly controlled by Østfold Energi and Vardar.
• Soleie AS
• Furuseth solkraftverk
• Carbon Centric

Products and services

• Vannkraft (Hydropower) Foundation and largest production area for Østfold Energi. Operates eight wholly-owned hydropower plants with combined annual production of approximately 1.5 TWh, plus 50% ownership in SISO Energi in Nordland. Main facility is Borgund kraftverk in Lærdal (catchment area 404 km², ~1 TWh annually). Includes Borgund, Eldrevatn, and Øljusjøen power stations with Mørkedøla pump. Sold into the Nordic wholesale power market.
• Fjernvarme (District Heating) Environmentally friendly district heating delivered to parts of Østfold using hot water to transport energy for heating and cooling buildings in cities and towns. System utilizes waste heat from Borregaard and other sources. Multiple heating central stations operate across Østfold. Annual delivery of approximately 60 GWh thermal energy to residential, commercial, and industrial customers.
• Vindkraft (Wind Power)

Quantifiable outcome

• Achieved 24% higher spot price than NO5 market average in 2025 through optimized production planning
• +4 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eleven partnerships are on record, tiered minor and core.

• Sarpsborg 08 (Stolt Sarping)minorGTM or Marketing Partner · 1 January 2026Østfold Energi joined as partner in the 'Stolt Sarping' youth social inclusion program run by Sarpsborg 08 and Østfold county municipality. The program helps 18-21 year-olds with attendance, coping, and academic progress challenges return to education or work. Østfold Energi provides both financial support and opens doors to employment opportunities.
• Jefferson WellsminorChannel Partner/ Reseller/ Distributor · 1 January 2026Jefferson Wells is used as recruitment partner for specialized positions such as SHA/HMS advisor and OT system technician at the Borgund hydropower facility in Lærdal. Contact person: Veslemøy Selvik.
• Betongbygg EiendomminorChannel Partner/ Reseller/ Distributor · 1 January 2026Betongbygg Eiendom is the developer of the Byhaven residential project in Sarpsborg center (106 apartments). Østfold Energi supplies district heating to the development, with the building connected to the existing district heating pipe network.
• Inspiria science centerminorGTM or Marketing Partner · 20 June 2025Østfold Energi is main sponsor (hovedsponsor) of Inspiria science center's new energy exhibition opening June 2026. The exhibition fills the entire first floor with interactive energy-themed installations, including 'Vannorama' water installation. Østfold Energi provides financing and expert advice; Inspiria handles editorial and pedagogical design.
• Lærdal IdrettslagminorGTM or Marketing Partner · 2 June 2025Østfold Energi entered a new, expanded sponsorship agreement with Lærdal IL as one of the club's main partners. The agreement aims to give all children and youth opportunity to participate in sports regardless of financial circumstances, with focus on broad participation over elite development.
• VardarcoreStrategic or Co-development Partner · 1 January 2024Vardar is a long-term partner of Østfold Energi. Together they co-own Zephyr (wind power), Kvalheim Kraft (wind), and Carbon Centric (carbon capture). In 2024, both Østfold Energi and Vardar became partners in Startuplab, a leading tech startup incubator, to explore and integrate new Norwegian technology solutions.
• StartuplabminorGTM or Marketing Partner · 1 January 2024Østfold Energi and Vardar entered Startuplab as partners in 2024. The partnership provides access to early-stage tech startups for potential investments, suppliers, market insight, and technological guidance, particularly in AI solutions for power system balancing.
• Soleie AScoreStrategic or Co-development Partner · 1 January 2020Østfold Energi's primary solar power engagement is through Soleie AS, which offers solar panel solutions for large rooftops. Østfold Energi co-owns Soleie AS with Akershus Energi. Soleie supplied solar panels for Kalnes Videregående Skole's 'Varme med solstrøm' project.
• ZephyrcoreStrategic or Co-development PartnerZephyr is a Nordic wind power developer, and Østfold Energi's main vehicle for wind power development. In 2024, Zephyr received a concession for offshore wind power in Sweden and received a milestone payment related to the Vidar offshore wind project. Østfold Energi and Vardar co-own Zephyr.
• Kvalheim KraftminorStrategic or Co-development PartnerØstfold Energi owns 50% of Kvalheim Kraft located in Kinn municipality. This represents a partial ownership in an operating wind power asset alongside other co-owners.
• Carbon CentriccoreStrategic or Co-development PartnerCarbon Centric is developing the world's first full-scale carbon capture plant at Østfold Energi's waste incineration facility in Rakkestad. Østfold Energi is the largest owner, alongside Vardar and Obligo. The plant will capture up to 90% of CO₂ emissions (~10,000 tonnes/year).

Scale indicators9 records

Recent moves4 records

Expansion highlights6 records

Direct peers

• Lyse Energi: Norwegian regional energy company combining hydropower generation with district heating and telecom. Closely comparable business mix and ownership structure to Østfold Energi, operating in the same Nordic wholesale and retail energy markets.
• Akershus Energi: Norwegian regional energy company co-owned by Østfold Energi in ventures like Soleie AS. Comparable size, geography (Eastern Norway), and renewable generation profile; a known counterparty in joint solar developments.
• BKK: Norway's third-largest hydropower producer, owned by municipalities in Vestland. Comparable hydropower generation scale (~2 TWh class) and municipal ownership model, with similar exposure to Nordic spot prices.
• Skagerak Energi: Norwegian hydropower and grid company operating in southern/eastern Norway. Comparable regional hydropower operator with similar asset size, trading exposure, and publicly-influenced ownership.
• TrønderEnergi: Norwegian municipal-owned hydropower producer operating in Trøndelag. Comparable business model, scale, and municipal ownership structure, trading hydropower output into the same Nordic market.
• Agder Energi: Norwegian regional utility with hydropower as its core, owned by Agder municipalities. Highly comparable as a publicly-owned, regionally-rooted hydropower producer with trading and grid exposure on Nord Pool.
• Eidsiva Energi: Norwegian regional energy company combining hydropower, district heating, and grid operations in inland eastern Norway. Highly comparable mix of business areas and customer base to Østfold Energi.

Broad incumbents

• Hafslund: Norway's largest district heating operator and a major grid owner, with hydropower and renewable activities. Comparable for the district heating (fjernvarme) operations and broader renewable utility exposure, though substantially larger scale.
• Statkraft: Norway's largest state-owned hydropower generator and a major European renewable energy player. Comparable as the dominant Nordic hydropower operator with diversified renewable assets and trading operations across the same Nord Pool spot market.

Others

• Vardar: Long-term partner of Østfold Energi, co-owning Zephyr (wind), Kvalheim Kraft, and Carbon Centric. Included as an ecosystem partner rather than direct competitor, given shared investment vehicles and joint initiatives.

Market position

Weaknesses5 records

Competitive moat5 records

Key risks2 records

Key highlights7 records

Customer concentration

• Xx.com/ostfoldenergi
• Facebookfacebook.com/ostfoldenergi
• LinkedInlinkedin.com/company/ostfold-energi

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

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 Østfold Energi