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On Friday, September 26, our customer service will exceptionally be open from 12:30 p.m. to 3:00 p.m.

Connection Price List

1 February 2025 Herrfors Nät-Verkko Oy Ab connection prices and
pricing principles in the electricity distribution network
incl. VAT 25.5%

General

The connection fee covers the cost of connecting electrical equipment to the distribution network up to the connection point, as defined in these application guidelines. The fees are based on the Energy Authority’s approved “Connection Pricing Methods” guidelines. For low-voltage connections, zone-based pricing is used, based on the direct distance to the nearest distribution transformer.

Connection Terms and Agreement

We follow the current connection terms. We prepare a connection agreement that defines the connection point, size, price, and connection time. We also verify the cable selection. The fee includes VAT (25.5%). Ownership may be transferred (e.g., in a property sale), but the connection itself cannot be relocated to another part of the distribution network. The fee is non-refundable in case of cancellation. The fee consists of capacity reservation and direct expansion costs to the connection point and includes metering.

Technical Principles

  • The zone is determined by the direct distance from the consumption site to the nearest transformer.
  • Typically, the conversion factor used is 1 kVA = 1.45 A.
  • The maximum main fuse size for low-voltage connections is 3 x 800 A.
  • According to the Electricity Market Act, the connection cable on the customer’s property is not included in the connection fee. The cable and its structure must meet the requirements of the network operator.
  • The customer’s electrician must perform an inspection and measurement before connection. Cable splicing is also done by the electrician. The inspection must comply with Electrical Safety Act 1135/2016 §43.
  • Maximum permitted consumption capacity for medium-voltage connection is 5 MVA when connected to a 20 kV cable network, and 10 MVA when connected to a substation bay.
  • Maximum permitted capacity for production connections is 2 MVA to the 20 kV network and 8 MVA to the substation.

Low Voltage Connections (0.4 kV)

Connection Price List by Zone

Fuse sizesZone 1Zone 2Zone 3
3 x 25 A3 287,07 €3 747,90 €4 770,35 €
3 x 35 A3 965,30 €4 426,14 €5 448,59 €
3 x 50 A4 982,66 €5 443,50 €6 465,95 €
3 x 63 A5 909,56 €6 415,57 €7 498,26 €
3 x 80 A7 164,22 €7 771,89 €
3 x 100 A8 558,35 €

Zones

Zone 1
Includes connections within town plan areas or outside such areas with a direct distance of up to 200 m to the nearest transformer. Does not include shoreline plans or old shoreline zoning, which fall under general zone or area pricing. For connections over 100 A, pricing is always case-specific.

Zone 2
Connections with a direct distance of 201–400 meters from the usage site to the existing transformer. Not applicable to transformers under area pricing. For connections over 80 A, pricing is case-specific.

Zone 3
Up to 63 A connections with a direct distance of 401–600 meters to an existing transformer. Not applicable to transformers under area pricing. Connections over 63 A are priced individually.

Area pricing

Primarily used in low-voltage networks. Applies to predefined areas outside zone pricing. Pricing assumes 60% of potential users join. If lower, higher area pricing applies. After 10 years, zone pricing applies.

Case-specific pricing

Used for medium- and high-voltage connections and low-voltage connections outside zones. The fee is based on network expansion costs and capacity reservation. Conversion: 1 kVA = 1.45 A.

Capacity reservation fee (KJ): €58.31/kVA / Capacity reservation fee (PJ): €98.30/kVA

Change of main fuse size

When increasing, pay the difference between new and old fuse size prices. If exceeding zone limits, additional capacity fee applies. No refund for downsizing. Connection rights remain unchanged unless separately agreed.

Changing single-phase to three-phase

Charged per zone. Outside zone pricing = case-specific.

Zone 1Zone 2Zone 3
Three-phase connection
(3x25A)
2 191,38 €2 498,60 €3 180,23 €
Three-phase connection
(3x35A)
2 643,54 €2 950,76 €3 632,39 €

Changing the connection point and voltage level

If the customer requests to change the connection point, a fee will be charged according to the service price list. Changing the connection’s voltage level terminates the existing agreement, and a new agreement is created corresponding to the new voltage and power. The previous connection fee is not refundable when changing voltage level.

Medium-voltage connections (20 kV)

The connection fee consists of direct network extension costs and a capacity reservation fee.

  • Connecting to a substation: €14.53/kVA + direct extension costs
  • Connecting to a 20 kV network: €58.31/kVA + direct extension costs

The customer acquires, owns, and pays for the transformer station and is responsible for its installation, use, and maintenance. The customer provides two disconnector modules for the network operator free of charge. Capacity can be increased within technical limits.

Production connections (0.4 kV and 20 kV)

For ≤ 2 MVA installations

Connection is made to either the 0.4 kV or 20 kV grid depending on installation size. If unsuitable, connection must be made to a higher-voltage network. Pricing follows zonal pricing, reduced by capacity reservation. Outside these zones, pricing is case-specific. If simultaneous consumption is ≤ 2 MVA, a capacity reservation fee may apply to consumption.

For > 2 MVA installations

If the installation size is too large for standard network connection, pricing is based on direct construction costs for the required infrastructure.

Second connection on same property

Normally one electrical connection is allowed per property. However, a second connection may be granted case-by-case if both parties benefit financially. If a third party manages it, proof (e.g., lease or power of attorney) is required. A second connection cannot be granted to an already connected building, as two separate connections cannot be safely isolated per SFS 6000 standard.

Connection maintenance

If the property doesn’t currently need electricity but the connection should be retained, it can be placed under maintenance. Power is disconnected, the meter removed, and the cable disconnected (charged per price list). Only a monthly maintenance fee remains based on the size of the connection.

Glossary

  • Connection point: The point where the customer’s electrical network is connected to the distribution network.
  • Main fuse: A protective device that limits the amount of current into the property, protecting from overload.
  • Connection agreement: A written contract specifying the connection point, connection size, price, and date of connection.
  • Connection cable: The cable linking the property to the general electricity distribution network.
  • Three-phase system: An electrical system using three conductors (phases) for power transmission.
  • Electrical connection size: Defines the maximum capacity (current and power) that can be transmitted to the customer’s installation.