TREFOR
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.
- Company typePrivate
- Founded-
- HeadquartersKolding, Denmark
- Headcount101–250
- GTM typeB2B
- OfferingServices
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.
TREFOR firmographics
Firmographics- 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
TREFOR industry classification
Industry- 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
Where TREFOR is headquartered
LocationHeadquarters
- HQ city
- Kolding
- HQ country
- Denmark
- HQ region
- Europe
Offices1 record
Markets served
TREFOR business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- 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.
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | TREFOR El-net C-prices (Residential/Small Commercial): Net subscription 465 kr/year, no differentiation between weekdays and weekends, seasonal variation (winter Oct-Mar, summer Apr-Sep) |
| Subscription | Annual | TREFOR El-net B-prices (Medium Commercial): Bhøj (high load) net subscription 3,273 kr/year; Blav (low load) net subscription 729 kr/year |
| Subscription | Annual | TREFOR El-net Øst C-prices (Bornholm): Net subscription 576 kr/year (higher than Trekantområdet due to infrastructure costs) |
| Unit Pricing | One time | Connection fees by geozone (from Jan 2025): Prices depend on geographic zones (red, yellow, green) reflecting actual infrastructure costs. Capacity availability per zone is published. |
| Transaction based/ take rate | Pay-as-you-go | Service fees (excerpt): Payment agreement: 260/325 kr (excl/incl VAT), Reconnection: 680/850 kr, Meter removal: 960/1,200 kr, Failed visit: 720/900 kr, Meter replacement: 1,250/1,563 kr |
Distribution channels4 records
Marketing channels5 records
TREFOR product offering
Product offeringCore 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
Companies that use TREFOR
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles4 records
TREFOR technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
Feature4 records
TREFOR partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered moderate and core.
- Center DenmarkmoderateCollaboration 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.
- EnerginetcoreTransmission 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 DenmarkcoreIndustry 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)coreTREFOR 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)coreFramework 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)coreNetwork 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
TREFOR competitors and assessment
Company assessmentDirect 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
TREFOR social profiles
Digital presenceTREFOR financial estimates
Financial estimateRevenue estimate
Valuation estimate
TREFOR leadership team
Management profileNumber of profiles
Profiles3 records
TREFOR subsidiaries and ownership
Company hierarchySubsidiaries1 record
TREFOR funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
TREFOR 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 TREFOR
What does TREFOR do?
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.
Is TREFOR a public or private company?
TREFOR is a private company. It is classified as corporate owned and is currently operating.
When was TREFOR founded?
TREFOR was founded in -1. It employs 101 to 250 people.
Where is TREFOR based?
TREFOR is headquartered in Kolding, Denmark, in the Europe region.
How does TREFOR make money?
Three revenue lines are on record. Network Tariffs (Nettariffer) is the primary driver. The others are connection Fees (Tilslutningsbidrag) and service Fees (Gebyrer).
Who are TREFOR's main competitors?
Direct peers on record are Hofor, Norlys (formerly Eniig), Aalborg Elnet, Radius Elnet, Andel (formerly SE/ NRGi) and Cerius. EWII Group (parent) is listed as a broad incumbent. Energinet is listed as an others.
Does TREFOR have an API?
No public API is recorded for TREFOR.
What industry is TREFOR in?
TREFOR's product category is Electricity Distribution Network Services. Its primary akta.pro industry code is EUADAAAI, Interconnection & Grid Access Services (Connection Agreements, Queue Mgmt). Its NAICS code is 221122 and its SIC code is 4911.