Soderenergi
Söderenergi AB is a municipally-owned Swedish district heating and CHP producer operating Igelstaverket — Sweden's second-largest biomass-fired combined heat and power plant — and three additional facilities, supplying approximately 2,500 GWh of heat to 300,000 residents and 500 GWh of electricity annually in southern Stockholm.
- Company typePrivate
- Founded1990
- HeadquartersSödertälje, Sweden
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Soderenergi does
Söderenergi AB is a Swedish municipally-owned district heating and combined heat and power (CHP) production company, established in 1990 and headquartered at Igelstaverket in Södertälje. It operates Sweden's second-largest biomass-fired CHP plant (210 MW heat, 85 MW electricity) alongside the Fittja plant (380 MW heat), Igelsta heating plant, and Skogås heating plant, converting approximately 1 million tonnes of residual waste from forest and recycling industries into roughly 2,500 GWh of district heating per year for ~300,000 residents in Södertälje, Huddinge, Botkyrka, Salem, and Nykvarn, plus ~500 GWh of electricity sold to Nord Pool and high-quality steam to industrial customers including AstraZeneca. Its technology stack centers on circulating fluidised bed combustion optimised for high-moisture biomass, three-stage flue gas cleaning, flue gas condensation for energy recovery, and an R1 efficiency factor of 1.19. Heat is sold wholesale to two municipally-owned sister/sibling distributors — Telge Nät and Södertörns Fjärrvärme — under an integrated regional production partnership with Stockholm Exergi and Norrenergi covering ~100 facilities across Greater Stockholm.
Söderenergi runs a production-only ("renodlat produktionsbolag") model with no direct consumer-facing marketing; revenue flows from wholesale heat contracts, Nord Pool electricity sales, industrial steam agreements (notably AstraZeneca), waste handling fees, electricity certificates, and minor metal/ash valorization. The company is wholly owned by Södertälje municipality (via Telge AB) and Huddinge/Botkyrka municipalities (via Södertörns Energi AB), which together also own the distribution off-takers. Infrastructure includes a Baltic Sea port at Igelsta handling ~50% of fuel and an 8-hectare rail terminal at Nykvarn. The company pursued a Bio-CCS carbon capture project (HPC technology, up to 500,000 tonnes/year capacity, with an AstraZeneca off-take agreement signed August 2025) but paused it in February 2026 due to financing and risk constraints. In 2026, parent entities initiated an investigation into merging district heating operations across the three municipalities into a common company. All facilities are certified to ISO 14001 and ISO 45001.
Soderenergi firmographics
Firmographics- Name
- Soderenergi
- Legal name
- Söderenergi AB
- Website
- https://soderenergi.se
- Company type
- Private
- Founded year
- 1990
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Söderenergi AB is a municipally-owned Swedish district heating and CHP producer operating Igelstaverket — Sweden's second-largest biomass-fired combined heat and power plant — and three additional facilities, supplying approximately 2,500 GWh of heat to 300,000 residents and 500 GWh of electricity annually in southern Stockholm.
- Ownership category
- akta.pro rank
Soderenergi industry classification
Industry- Product category
- District Heating / District Energy Services
- NAICS
- Biomass Electric Power Generation (221117), Steam and Air-Conditioning Supply (22133)
- SIC
- Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Biomass CHP & Cogeneration Plants (Industrial & Utility) (EUAAAGAA)
- akta.pro secondary industries
- Biomass Plant Operations, Maintenance & Performance Services (O&M) (EUAAAGAI), Biomass Combustion & Boiler Island Technology (Grates, Fluidized Bed, Burners) (EUAAAGAG)
Keywords
Where Soderenergi is headquartered
LocationHeadquarters
- HQ city
- Södertälje
- HQ country
- Sweden
- HQ region
- Europe
Offices4 records
Markets served
Soderenergi business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Others
Revenue model
- District Heating Sales: Heat production sold to end customers through owner municipalities. Telge Nät distributes and markets district heating in Södertälje and Nykvarn; Södertörns Fjärrvärme (SFAB) distributes in Huddinge, Botkyrka, and Salem. Produces approximately 2,500 GWh of district heating in a normal year.
- Electricity Sales: Electricity produced from the CHP plant goes directly to Nord Pool, the Nordic power exchange. Produces approximately 500 GWh of electricity in a normal year. Electricity certificates are also sold.
- Steam and Hot Water for Industry: Production of steam and hot water for industry in Södertälje, including supply to AstraZeneca. The steam generator at Igelsta heating plant delivers high-quality steam to local manufacturing industry.
- Negative Emissions / Carbon Dioxide Removal Certificates: Planned revenue stream from certified carbon dioxide removal certificates (negative emissions) via bio-CCS. Customers are climate-conscious companies that purchase carbon credits to compensate for emissions they cannot avoid. Bio-CCS project currently paused. AstraZeneca agreement signed for first negative emissions from planned facility.
Go-to-market motion1 record
Distribution channels5 records
Marketing channels6 records
Soderenergi product offering
Product offeringCore offering
Söderenergi is a municipal, pure production company that generates and wholesale-supplies district heating (approximately 2,500 GWh per normal year), electricity (approximately 500 GWh per normal year), and process steam and hot water for industry from biomass and recovered fuels across its Igelsta CHP plant, Igelsta heating plant, Fittja plant, and Skogås heating plant. It additionally markets an Environmental Service (Miljötjänst) for waste customers, quantifying the climate and resource benefits of delivering residual waste to its facilities, and had been developing a bio-CCS carbon capture offering that has been paused.
Product overview
Söderenergi is a district heating and power production utility that operates as a single unified product portfolio centered on energy production and distribution. The core offerings include district heating (fjärrvärme) delivered through multiple facilities—primarily the Igelsta Combined Heat and Power Plant (Sweden's second-largest biomass-fired CHP), the Igelsta Heating Plant, Fittja Plant, and Skogås Heating Plant—all working together to supply approximately 300,000 residents and industrial customers in southern Stockholm. Supporting infrastructure includes the Igelsta Port and Nykvarn Fuel Terminal for logistics. A notable paused initiative is the Bio-CCS project for carbon capture and storage. The company also offers an Environmental Service Verification Tool for waste customers to track climate benefits. Production is coordinated with Stockholm Exergi and Norrenergi partners for optimized system-wide operations.
Differentiator
Problem solved
Functional benefit
Products and services
- District Heating (Fjärrvärme) Wholesale production and supply of district heating from biomass and waste fuels, delivered through the southern Stockholm district heating network to approximately 300,000 residents and offices/industries in Södertälje, Huddinge, Botkyrka, Salem, and Nykvarn via sister distribution companies.
- Electricity from Igelsta CHP Combined heat and power generation at the Igelsta CHP plant (210 MW heat, 85 MW electricity) producing approximately 500 GWh of electricity per normal year, sold directly to the Nordic power exchange Nord Pool.
- Steam and Hot Water for Industry Direct supply of high-quality process steam and hot water to industrial customers in Södertälje from the steam generator at Igelsta heating plant, most notably to AstraZeneca's manufacturing facility.
- Environmental Service (Miljötjänst) Verification Tool A verification service for waste customers that documents and quantifies climate and environmental benefits — including heat/electricity produced, recovered metals, and heavy metals handled — for specific amounts of waste delivered to Söderenergi's plants.
- Bio-CCS / Carbon Dioxide Removal Certificates (paused) Planned production and sale of certified carbon dioxide removal certificates (negative emissions) through bioenergy carbon capture and storage at Igelstaverket using Hot Potassium Carbonate (HPC) technology, targeting up to 500,000 tonnes of permanent biogenic CO2 storage annually starting 2030. AstraZeneca had signed an offtake agreement for the first negative emissions. Project currently paused.
Quantifiable outcome
- 159,000 tonnes CO2e avoided emissions in 2025
- +4 more outcomes
Companies that use Soderenergi
Customer profileNamed customers3 records
Segments5 records
Ideal customer profiles4 records
Soderenergi technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Soderenergi partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- AstraZenecacoreHistoric agreement where AstraZeneca reserved the first negative emissions from Söderenergi's planned bio-CCS facility. From 2030, Söderenergi would deliver up to 500,000 tonnes of permanent biogenic CO2 storage annually. The deal demonstrates confidence in Söderenergi's bio-CCS project and contributes to building the negative emissions industry. Project currently paused due to high risk exposure and lack of financing.
- Stockholm ExergicoreProduction partnership agreement for joint optimization of district heating production for Greater Stockholm. Together with Norrenergi, approximately 100 facilities are optimized in an interconnected network. The collaboration strengthens heat production and sales while enabling more efficient use of the shared production system.
- NorrenergicoreProduction partnership agreement for joint optimization of district heating production alongside Stockholm Exergi. Enables more efficient use of the shared production system across the Greater Stockholm area.
- EFO (Egen Försörjning och Omsorg?)coreEFO is a purchasing company owned by Söderenergi and six other municipal energy companies. EFO provides market expertise and competence outside Sweden, actively finding new markets and cheaper alternatives with good environmental performance. EFO secures that high demands on quality, certifications, traceability, self-monitoring, and ethics are followed. EFO manages the entire chain from purchasing to sea freight for fuel.
- RagnSellsminorAsh from Söderenergi's combustion plants is handled by RagnSells at Högbytorp facility north of Stockholm. Different ash classes are managed based on what was combusted. Some ash becomes part of soil production or construction material for roads, while contaminated ash with heavy metals is safely disposed.
- Kuusakoski RecyclingminorMetal scrap from Söderenergi's combustion and sorting processes is handled by Kuusakoski Recycling. Approximately 900 tonnes of scrap per year is converted to new raw material at their facility in Gävle, Sweden's steel belt.
- Hector RailminorRail transport provider responsible for railway transports from sending terminals to Söderenergi's fuel terminal in Nykvarn.
- Ahréns ÅkareminorTransport company handling all transports from the fuel terminal in Nykvarn to Igelstaverket. All machines and vehicles at the terminal are powered by 100% biofuel. Electric shuttle truck handles fuel transport.
- Tom Tits ExperimentminorCollaboration with Sweden's largest science center to create an educational experiment show about carbon, the greenhouse effect, and bio-CCS technology. Launched autumn 2025, targeting children and families to strengthen public understanding of climate issues and the green transition.
- Städa SverigeminorLong-running collaboration with Städa Sverige (Idrottens miljöorganisation) for environmental cleanup days. Several times per year, Söderenergi and Städa Sverige welcome youth and coaches from local sports clubs for cleanup days around Igelstaverket, combining environmental awareness with support for youth sports.
- Campus TelgeminorSöderenergi participated in the design of a new national drifttekniker (operations technician) training program starting autumn 2026 in Södertälje. Initiative aims to meet the growing demand for operations technicians in the energy sector. Söderenergi continues to contribute to creating the best conditions during the training.
Scale indicators13 records
Recent moves6 records
Expansion highlights6 records
Soderenergi competitors and assessment
Company assessmentDirect peers
- Stockholm Exergi: Stockholm's largest district heating and CHP producer with biomass and waste-to-energy operations. Direct comparable as a Swedish municipal/CVC-owned biomass-fired CHP utility serving the Greater Stockholm region, with whom Söderenergi has a production partnership agreement.
- Norrenergi: District heating producer in the Solna/Sundbyberg area north of Stockholm. Comparable as a regional CHP and district heating producer in the Greater Stockholm region, partnering with Söderenergi and Stockholm Exergi for integrated heat optimization.
- Göteborg Energi: Major Swedish municipally-owned energy company providing district heating, electricity, and gas in Gothenburg. Comparable as a Swedish municipal utility with biomass-based district heating and CHP production at comparable scale.
- Mälarenergi: Municipal energy company in Västerås providing district heating, electricity, and waste-to-energy services. Comparable as a Swedish municipal utility with combined heat and power operations and circular waste-to-energy services.
- Tekniska Verken: Municipally-owned energy company in Linköping offering district heating, electricity, biogas, and waste management. Comparable as a Swedish municipal utility with biomass CHP and integrated circular waste-to-energy services.
Broad incumbents
- E.ON Sverige: Major European energy incumbent with district heating, electricity, and gas operations across Sweden. Comparable as a broad energy provider overlapping in district heating and power generation, but operating at much larger scale and across multiple geographies.
- Vattenfall: Swedish state-owned major European energy company with district heating, CHP, and biomass operations across Sweden and the Nordics. Comparable as a large-scale biomass and district heating operator, but operates across multiple countries and energy segments.
Regional players
- Öresundskraft: Regional energy company in southwestern Sweden (Skåne) providing district heating, electricity, and gas. Comparable as a Swedish regional district heating producer, but operates in a different geography than Söderenergi.
- Jämtkraft: Regional energy company in Jämtland providing district heating, electricity, and fiber. Comparable as a Swedish regional utility with district heating operations, though smaller scale and in a different geography.
- Affärsverken: Municipally-owned energy company in Karlskrona providing district heating, electricity, and fiber. Comparable as a Swedish municipal district heating utility, though smaller in scale and in a different geographic market.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat6 records
Key risks5 records
Key highlights6 records
Customer concentration
Soderenergi social profiles
Digital presenceSoderenergi compliance and trust
Trust signalCompliance2 records
Soderenergi financial estimates
Financial estimateRevenue estimate
Valuation estimate
Soderenergi leadership team
Management profileNumber of profiles
Profiles9 records
Soderenergi funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Soderenergi M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Soderenergi
What does Soderenergi do?
Söderenergi is a municipal, pure production company that generates and wholesale-supplies district heating (approximately 2,500 GWh per normal year), electricity (approximately 500 GWh per normal year), and process steam and hot water for industry from biomass and recovered fuels across its Igelsta CHP plant, Igelsta heating plant, Fittja plant, and Skogås heating plant. It additionally markets an Environmental Service (Miljötjänst) for waste customers, quantifying the climate and resource benefits of delivering residual waste to its facilities, and had been developing a bio-CCS carbon capture offering that has been paused.
Is Soderenergi a public or private company?
Soderenergi is a private company. It is classified as state government owned and is currently operating.
When was Soderenergi founded?
Soderenergi was founded in 1990. It employs 51 to 100 people.
Where is Soderenergi based?
Soderenergi is headquartered in Södertälje, Sweden, in the Europe region.
How does Soderenergi make money?
Four revenue lines are on record. District Heating Sales are the primary driver. The others are electricity Sales, steam and Hot Water for Industry and negative Emissions / Carbon Dioxide Removal Certificates.
Who are Soderenergi's main competitors?
Direct peers on record are Stockholm Exergi, Norrenergi, Göteborg Energi, Mälarenergi and Tekniska Verken. Broad incumbents are E.ON Sverige and Vattenfall. Regional players are Öresundskraft, Jämtkraft and Affärsverken.
Does Soderenergi have an API?
No public API is recorded for Soderenergi.
What industry is Soderenergi in?
Soderenergi's product category is District Heating / District Energy Services. Its primary akta.pro industry code is EUAAAGAA, Biomass CHP & Cogeneration Plants (Industrial & Utility), with a secondary code of EUAAAGAI, Biomass Plant Operations, Maintenance & Performance Services (O&M). Its NAICS code is 221117 and its SIC code is 4991.