GrønGas

What GrønGas does

GrønGas A/S is a Danish privately-held renewable energy operator that produces biomethane and liquid biomethane (LBG) from agricultural and food-industry organic waste through anaerobic digestion. The company runs two production facilities in North Jutland, Denmark: the Vrà plant (established 2016, on ~10 hectares, processing ~400,000 tonnes of biomass annually and injecting ~14 million Nm³ of biomethane into the national Danish gas grid), and the Hjørring plant (established 2001 and recently modernised, processing ~100,000 tonnes of biomass annually and producing LBG at -160°C for export to German heavy-duty trucking fleets, equivalent to 5–6 million litres of diesel per year). The Hjørring site is operated as Denmark's only functioning energy island, co-locating wind turbines, biogas production, and hydrogen generation with two partner companies, enabling e-methane synthesis from CO2 byproduct.

The company's revenue model is B2B and asset-based, with three primary streams: (1) volumetric gas sales into the Danish national gas grid from Vrà, (2) export of LBG to German transport companies without public subsidies (a unique position in Denmark), and (3) processing fees and circular-economy returns of nutrient-rich digestate fertiliser to approximately 50 supplying farmers. Secondary revenue includes district heating supply to Vrå Varmeværk and food-industry waste processing enabled by Fødevarestyrelsen hygienisation approval. Customers are concentrated in agriculture (suppliers), German heavy logistics (off-takers), and Danish energy infrastructure operators. The company is structured as a Danish public limited company (A/S) with multiple CVR-registered entities, ~11–50 employees, no disclosed funding rounds, and an independently-held ownership structure.

Name

GrønGas

Legal name

GrønGas A/S

Website

https://grongas.dk

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

GrønGas A/S is a Danish privately-held renewable energy operator that runs two anaerobic digestion plants in North Jutland, converting agricultural manure and food-industry waste into biomethane for the Danish gas grid and liquid biomethane exported to German heavy-duty trucking fleets.

Ownership category

akta.pro rank

Product category

Biogas and Biomethane Production

NAICS

Biomass Electric Power Generation (221117)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH)

akta.pro secondary industries

RNG Liquefaction & Compression (Bio-LNG, Bio-CNG) (EUAAAEAF), Digestate Processing, Nutrient Recovery & Fertilizer Products (Struvite, Ammonia, Compost) (EUAAAEAL), Manure & Organic Residuals Feedstock Supply (Farm Organics for AD/RNG) (EUAAAFAK), Renewable Natural Gas (RNG) & Biomethane Trading (EUAGAGAI)

Keywords

• Biogas production
• Biomethane generation
• Renewable natural gas
• Anaerobic digestion
• Waste-to-energy facilities

Headquarters

HQ city

Vrå

HQ country

Denmark

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Biomethane/Green Gas Sales to Gas Grid: Production and sale of purified biomethane (bionatural gas) injected directly into the national Danish gas network. The Vrå facility produces approximately 14 million Nm³ metan annually, equivalent to heating needs of about 8,300 households. Revenue is generated from gas sales to energy distributors and consumers replacing fossil natural gas.
2. Liquid Biomethane (LBG) Export to Germany: Hjørring facility produces liquefied biomethane (LBG) sold to Germany for use as fuel in German heavy-duty trucks. Annual production equivalent to 5-6 million litres of diesel. This stream operates without government subsidies, making it unique in Denmark.
3. Agricultural Input Processing: Processing of biomass including livestock manure, agricultural residues, and food industry waste from approximately 50 farmers and industrial partners. Returns processed, nutrient-rich digestate to farmers as fertiliser, creating a circular economy revenue loop.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

GrønGas produces and sells biomethane (green gas) and liquid biomethane (LBG) by converting agricultural manure, food industry waste, and biomass residues through anaerobic digestion at its Vrå and Hjørring facilities in North Jutland, Denmark. The Vrå plant injects ~14 million Nm³ of biomethane per year into the national gas grid, while the Hjørring plant produces and exports LBG to German heavy-duty trucking customers. The company also generates hydrogen from wind power, supplies excess heat to Vrå district heating, and returns processed digestate fertiliser to its farmer suppliers.

Product overview

GrønGas operates a portfolio of biogas and biomethane production facilities in North Jutland, Denmark. The company operates two main facilities: the Vrå plant (established 2016) producing pipeline-quality biometan (~14 million Nm³/year) and the Hjørring plant (established 2001, recently upgraded) producing liquefied biomethane (LBG) for German heavy transport (~100,000 tons biomass/year). Both facilities convert agricultural and industrial organic waste streams into renewable energy through anaerobic digestion. GrønGas also produces hydrogen from wind power at the Hjørring site for e-fuel synthesis. Supporting services include an odor warning SMS system (Lugtvarsel), a safety check-in platform (Safetymaps), and a public biogas data analytics dashboard (PowerBI).

Differentiator

Problem solved

Functional benefit

Products and services

• Biogas/Biometan Production (Vrå) Produces approximately 14 million Nm³ of biomethane (bionatural gas) annually from ~400,000 tonnes of biomass, consisting of livestock manure, agricultural residues, and food industry by-products. The purified biomethane is injected directly into the Danish national gas grid, replacing fossil natural gas for residential, commercial, and industrial consumers.
• Liquid Biomethane (LBG) Production (Hjørring) Produces liquefied biomethane (LBG) from approximately 100,000 tonnes of biomass annually, cooled to -160°C for liquefaction. The LBG is sold to German heavy-duty trucking companies as a replacement for diesel, generating fuel equivalent to 5-6 million litres of diesel per year. This is the only Danish biogas plant producing and selling LBG without public subsidies.
• Hydrogen Production (Hjørring) Produces hydrogen at the Hjørring facility from wind turbine electricity, in collaboration with two partner companies. The hydrogen can be used to produce e-methane (e-fuels), leveraging the CO2 byproduct from biogas production as feedstock.
• Digestate Fertiliser Return to Farmers Processed, nutrient-rich digestate fertiliser is returned to ~50 farmer suppliers as a circular economy output of the anaerobic digestion process. The digestate offers improved nutrient utilisation compared to raw manure, supporting agricultural productivity.
• District Heating Supply (Vrå) Excess heat from the Vrå biogas facility is supplied to Vrå Varmeværk (Vrå district heating company) for distribution to Vrå city residents, maximising resource utilisation of the biogas production process.

Quantifiable outcome

• Processes ~500,000 tonnes biomass annually (400,000 tonnes at Vrå + 100,000 tonnes at Hjørring)
• +3 more outcomes

Named customers3 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

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Landmænd (Farmers) - ~50 supplierscoreStrategic or Co-development PartnerApproximately 50 local farmers in the Vrå area supply livestock manure and other agricultural biomass to GrønGas Vrå facility. In return, farmers receive processed digestate back as nutrient-rich fertiliser with improved nutrient utilisation compared to raw manure. This creates a circular economy partnership where both parties benefit from waste-to-resource conversion.
• Food Industry PartnerscoreStrategic or Co-development PartnerFood industry companies supply vegetable waste and animal by-products to GrønGas facilities. The Vrå facility holds Fødevarestyrelsen approval for hygienisation of biomass containing animal by-products, enabling processing of food industry waste streams in compliance with food safety regulations.
• Hydrogen Production Partners (2 companies)coreStrategic or Co-development PartnerIn collaboration with two other companies, GrønGas Hjørring produces hydrogen from windmill electricity. This hydrogen can be used for e-methane (e-fuels) production, creating a unique integrated energy system that utilises CO2 byproduct from biogas production. This partnership enables the energy island concept at Hjørring.
• Vrå Varmeværk (Vrå District Heating)minorStrategic or Co-development PartnerExcess heat from GrønGas Vrå biogas facility is supplied to Vrå Varmeværk (local district heating company) for distribution to Vrå city residents, creating a local energy partnership that maximises resource utilisation.
• Biogas DanmarkminorStrategic or Co-development PartnerBranch organisation (industry association) for the entire biogas sector in Denmark. GrønGas participates and refers suppliers and stakeholders to biogas.dk for industry knowledge, statistics, regulatory updates, and sector collaboration.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• PlanET Biogas: German full-service biogas plant builder and operator (planning, EPC, service) with European presence. Comparable as a peer AD/biomethane operator; relevant for benchmarking operational and digestion technology choices.
• Verbio: Germany-based producer of biomethane (Bio-LNG/CNG), biodiesel and bioethanol from agricultural residues. Highly comparable on the LBG side of GrønGas — same end market in German heavy-duty trucking, same feedstocks, same large-scale AD-and-upgrading architecture.
• Weltec Biopower: German manufacturer, developer, and operator of biogas plants with multi-country footprint and multi-feedstock approach. Comparable in operational scale, AD technology choice, and agricultural/manure feedstock profile to GrønGas's Vrå facility.
• Nature Energy: Denmark's largest independent biogas and biomethane producer with multiple AD plants across Denmark and beyond, now under Shell ownership. The closest direct peer: same geography, same anaerobic-digestion asset model, same national gas-grid injection and transport-fuel use cases that GrønGas targets at smaller scale.
• BioCirc: Danish biomethane developer and operator with multiple AD sites processing agricultural and industrial organic waste into green gas for the Danish grid. Directly comparable operating model and customer segments (farmers, gas utilities, transport) to GrønGas.
• EnviTec Biogas: German-based developer and operator of biogas and biomethane plants with own EPC, operation, and grid-injection capability. Comparable in asset ownership of AD plants and offtake into national gas networks — directly analogous to GrønGas's Vrå model.

Broad incumbents

• Neste: World-leading renewable fuels company with biogas operations (Neste Engineering Solutions, dairy/biogas acquisitions) and dominant renewable diesel footprint. Overlaps with GrønGas on biogas upgrading technology and on serving heavy-duty transport customers with renewable fuels.
• Shell: Global energy major that acquired Denmark's Nature Energy in 2024, becoming the largest biomethane producer in Europe. Sets the competitive ceiling for GrønGas on LBG offtake prices to German truck fleets and on Danish/European gas-grid renewable supply.
• Ørsted: Danish-headquartered renewable-energy major with growing biogas/biomethane operations across Denmark and the US. A broader incumbent in Danish green gas: same national gas-grid off-take markets and same green-transition narrative, but at vastly larger scale and capital base.
• Equinor: Norwegian energy major with renewable-gas/biogas investments and hydrogen ambitions in Denmark and Northern Europe. Comparable as a broad incumbent evaluating the same gas-grid and transport-fuel decarbonisation opportunity as GrønGas.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/gr%C3%B8ngas

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 GrønGas