TREFOR

What TREFOR does

TREFOR is a regulated electricity distribution network operator (netselskab) in Denmark, operating as two entities: TREFOR El-net serving the Trekantområdet (Triangle Region around Kolding, Vejle, and Fredericia) and TREFOR El-net Øst serving Bornholm island. Both are wholly-owned subsidiaries of EWII A/S within the EWII Group conglomerate. The company maintains and develops the physical electricity distribution grid across three voltage levels (0.4 kV, 10 kV, and 60/10 kV) and serves over 137,000 net customers with reported uptime of 99.996% in the Triangle Region. Grid losses are 3% in Trekantområdet and 6% on Bornholm, reflecting the island grid's renewable mix and consumption profile.

The core technology stack includes remotely-readable smart meters from Kamstrup (Omnipower) and Landis+Gyr, integrated with the national Danish DataHub and the Eltilmelding.dk electrician platform. TREFOR operates under Tarifmodel 3.0, a Forsyningstilsynet-approved time-of-use pricing system with three price tiers (low, high, peak), and from January 2025 introduced dynamic geozone-based connection pricing for electricity-producing facilities. A public Data Portal exposes aggregated consumption data by municipality, customer type, and season. The company holds HAN-port integration capability on Bornholm for third-party device connectivity.

Revenue is generated entirely through regulated mechanisms: recurring network tariffs (subscription, energy, and power-based), one-time connection fees, and regulated service fees. Customer segments are tiered by connection voltage — C-kunder (residential/small commercial at 0.4 kV, the primary segment), B-kunder (medium commercial at 10 kV), A-kunder (large industrial at 60 kV), plus own-producers (solar, wind, battery). TREFOR holds monopoly concessions in its territories and is benchmarked for efficiency by Forsyningstilsynet, ranking in the top third of Danish grid companies.

Name

TREFOR

Legal name

TREFOR El-net A/S

Website

https://trefor.dk

Company type

Private

Operating status

Operating

Headcount range

101–250 employees

Short description

TREFOR is a regulated Danish electricity distribution network operator serving 137,000+ customers across Trekantområdet and Bornholm under monopoly concessions, operating as a subsidiary of EWII Group.

Ownership category

akta.pro rank

Product category

Electricity Distribution Network Services

NAICS

Electric Power Distribution (221122), Electric Power Transmission, Control, and Distribution (22112)

SIC

Electric Services (4911), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Interconnection & Grid Access Services (Connection Agreements, Queue Mgmt) (EUADAAAI)

Keywords

• Electricity distribution networks
• Regulated utility services
• Smart metering infrastructure
• Grid connection services
• Network tariff management

Headquarters

HQ city

Kolding

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Network Tariffs (Nettariffer): Revenue from regulated network tariffs charged for electricity transmission through the distribution grid. Tariffs are regulated by Forsyningstilsynet and vary by customer category (A, B, C), time of day, and season. Includes subscription fees, energy-based fees, and power-based fees.
2. Connection Fees (Tilslutningsbidrag): One-time fees for new connections and capacity upgrades, calculated based on geozones and customer category. From January 2025, pricing depends on geographic zones to better reflect actual costs.
3. Service Fees (Gebyrer): Various service fees including payment agreements, late payments, reconnection, temporary connections, meter removal/installation, and administrative services. Fees are regulated and published in fee schedules.

Pricing tiers

Distribution channels4 records

Marketing channels5 records

Core offering

TREFOR operates two regulated electricity distribution network companies (TREFOR El-net and TREFOR El-net Øst) that maintain, develop, and operate the electricity grid at 0.4 kV, 10 kV, and 60/10 kV levels in the Trekantområdet region and on Bornholm island, Denmark. The company provides remote-readable smart metering, regulated network tariffs (including Tarifmodel 3.0 time-of-use pricing), connection services for new installations and electricity-producing facilities, geozone-based connection pricing, and a public Data Portal for grid consumption analytics. TREFOR serves as the regulated monopoly network operator (netselskab) under Forsyningstilsynet oversight, while electricity retail sales are handled by separate electricity suppliers.

Product overview

TREFOR operates two electricity distribution network companies: TREFOR El-net (Triangle Region) and TREFOR El-net Øst (Bornholm), responsible for maintaining and developing the power grid for approximately 154,000 and 32,000 customers respectively. The core offering is electricity distribution infrastructure and related services including smart metering (quarter-hourly settlement on Bornholm, hourly for Triangle Region), connection services for new installations and electricity-producing facilities (solar, wind, battery storage), network data portal, and grid development planning. TREFOR supports HAN-port integration on Bornholm for external device connections and provides various digital services for customers, electricians, and energy suppliers through integration with market platforms like DataHub and Eltilmelding.dk.

Differentiator

Problem solved

Functional benefit

Products and services

• TREFOR El-net (Electricity Distribution Service - Trekantområdet)

Quantifiable outcome

• 99.996% uptime for residential customers
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature4 records

Partnerships

Six partnerships are on record, tiered moderate and core.

• Center DenmarkmoderateTechnology or IntegrationCollaboration on open data platform development. TREFOR works with Center Denmark to create a shared data platform enabling collaboration with other stakeholders and finding new ways to create value for customers, business, and environment through data sharing.
• EnerginetcoreStrategic or Co-development PartnerTransmission network operator (TSO) responsible for the national transmission grid. TREFOR works with Energinet on capacity planning and grid development. Energinet's transmission capacity constraints are affecting TREFOR's ability to connect new large electricity consumers. TREFOR is helping gather demand forecasts to submit to Energinet.
• Green Power DenmarkcoreImplementation/ SI/ Consulting PartnerIndustry association representing Danish wind and solar organizations. TREFOR follows Green Power Denmark's standards for connection of electricity-producing facilities, including technical requirements, connection agreements, and producer payment methods. Uses Green Power Denmark's guidelines for geozone pricing.
• EWII Group (Parent Company)coreOthersTREFOR El-net and TREFOR El-net Øst belong to EWII Infrastruktur, part of the EWII Group. EWII operates websites and handles some group functions. The Group includes water, district heating, and fiber divisions alongside electricity grid operations.
• All Electricity Suppliers (Elleverandører)coreChannel Partner/ Reseller/ DistributorFramework cooperation with all electricity suppliers operating in Denmark. Customers freely choose their electricity supplier while TREFOR handles grid infrastructure. Cooperation governed by Standardaftalen (standard agreement) and service level terms approved by Forsyningstilsynet.
• Authorized Electricians (Autoriserede el-installatører)coreChannel Partner/ Reseller/ DistributorNetwork of authorized electricians who act as the customer-facing channel for all new installations, connections, and modifications. Electricians submit applications on behalf of customers via Eltilmelding.dk and are responsible for compliance with technical standards.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Hofor: Hofor is a Copenhagen-area utility operating electricity distribution alongside district heating, water, and gas. As a multi-utility DSO serving a defined Danish territory under the same regulatory regime, it is directly comparable to TREFOR's combined electricity, water, and heat mandate.
• Norlys (formerly Eniig): Norlys is a large Danish consumer-owned energy group operating electricity distribution grids in Jutland and Funen alongside energy supply and fiber. Its DSO business is directly comparable to TREFOR's regulated network operations under the same Forsyningstilsynet framework.
• Aalborg Elnet: Aalborg Elnet is the local electricity distribution grid operator in the Aalborg area of northern Jutland. As another Danish municipal-scale DSO under Forsyningstilsynet regulation, it provides a directly comparable operational benchmark for TREFOR's distribution activities.
• Radius Elnet: Radius Elnet is the electricity distribution network operator for the greater Copenhagen area, serving several hundred thousand customers. As a fellow Danish regulated DSO operating under Forsyningstilsynet, it is the most direct structural and operational comparable to TREFOR El-net.
• Andel (formerly SE/ NRGi): Andel is a Danish consumer-owned energy company with electricity distribution grid operations in the Zealand region. As a cooperative-owned DSO with similar monopoly concessions and Forsyningstilsynet oversight, it is a direct peer to TREFOR.
• Cerius: Cerius operates the electricity distribution grid on Zealand and surrounding islands in Denmark under similar Forsyningstilsynet regulation. It is a directly comparable Danish DSO with the same monopoly-concession model, regulated tariff structure, and smart-meter rollout as TREFOR.

Broad incumbents

• EWII Group (parent): EWII Group is the parent conglomerate of TREFOR El-net and TREFOR El-net Øst, also operating water, district heating, and fiber businesses. It serves as the group-level context for TREFOR and is structurally similar to other diversified Danish utility groups (e.g., Norlys, Andel) that own DSOs.

Others

• Energinet: Energinet is the Danish national transmission system operator (TSO) that operates upstream of TREFOR's distribution grid. While not a competitor, it is the critical counterpart in TREFOR's value chain, and its transmission constraints directly affect TREFOR's ability to connect new customers.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/trefordognvagt
• LinkedInlinkedin.com/company/trefor

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

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 TREFOR