Products and rates

Products and rates

Electricity connection rate

You need an electricity connection to connect to the electricity network, for the network to extend to the border of your plot, and to use an electric meter. Your connection fee covers the costs incurred from the construction of medium or low voltage networks and secondary substations up to the connection point of the distribution network. The connection point is determined in the connection contract, and is usually located on the border of the plot or construction site.

Other factors affecting the connection price include the main fuse size and the connection zone, i.e. the distance to the nearest 20 kilovolt cable or secondary substation.

Please see below for information on how connection zones are determined. For electricity connection prices, see the rates at the bottom of this page. Choose your rates according to the network area where your metering point is located: Caruna Oy or Caruna Espoo Oy.

Delivery times when you receive a connection quote

Our Customer Service department can give you a connection quote over the phone for most of the areas where a zone rate has been set.

If we require further information about your site, however, you will normally receive a quote within a month. For example, we may need information on the connections, medium voltage connections, and industrial connections located on zones 2+ and 3 (see the zoning below), or situations where long sections of the network must be strengthened.


We use zone pricing to set the electricity connection rates. A connection zone is determined by the distance to the nearest 20 kilovolt line or secondary substation.

Detailed information about zoning criteria and descriptions of each zone can be found below.

Connection zones in Caruna Espoo Oy's network area:

Connection zones in Caruna Oy's network area:

More information about the zones

Zone 1

  • Maximum distance of 300 metres measured in a direct line from the connection point to the constructed 20 kilovolt (kV) cable (excluding underwater cables).
  • Zone 1 always applies to urban areas covered by a city plan. On shore plan areas, the zone pricing is based on distance.

Zone 2

  • Maximum main fuse size of 3x63 A.
  • Distance of 300 to 600 metres measured in a direct line from the connection point to an existing 20 kilovolt (kV) cable (excluding underwater cables).

Zone 2+

  • Only applicable to Caruna Oy’s network area.
  • Maximum main fuse size of 3x35 A.
  • The distance from the connection point to an existing 20 kilovolt (kV) cable is over 600 metres measured in a direct line, but not more than 800 metres from an existing secondary substation.
  • Zone 2+ pricing is not applicable if the usual network solutions are not available for building the network. Such situations include having to cross railways and motorways, factories, underwater cables or other difficult waterway crossings, and similar obstructions.

Zone 3

  • Zone 3 pricing is applied to low voltage connections that do not meet the criteria for zones 1, 2, or 2+.
  • In zone 3, the connection fee is determined on a case-by-case basis, and in the case of more than one customer being connected at the same time, an area price is quoted.

Electricity distribution rates 

Caruna Oy and Caruna Espoo Oy network area rates

Caruna is comprised of two electricity distribution companies: Caruna Oy and Caruna Espoo Oy. Caruna Oy is responsible for electricity distribution in its network areas in South, West, and Southwest Finland, and in the regions of Satakunta and Koillismaa. Caruna Espoo Oy operates in Espoo, Kauniainen, Kirkkonummi, and Joensuu. For the more specific details, please see our network area map.

Caruna Oy and Caruna Espoo Oy are two separate companies with separate pricing policies. Each company sets its electricity distribution rates independently, and their rates are affected by factors such as local network conditions.

The majority of Caruna Oy’s network is situated in rural areas, while Caruna Espoo Oy’s is in urban areas. Urban conditions are generally favourable to electricity distribution because of higher population density, meaning that there is less electrical network construction required per customer. In towns, the electrical network is largely placed underground, which means it is better protected from weather damage and reduces network repair and maintenance needs. In rural conditions, the length of electrical network per customer is considerably higher. The network is also very exposed to natural phenomena, significantly increasing maintenance and repair costs.

Electricity distribution products

A distribution product refers to a tariff which the electricity distribution company collects to cover electricity distribution costs and other fees related to network services.

Your distribution product is stated in the electricity network contract you signed with Caruna when your electricity supply was connected. The distribution product depends on the fuse size in your property. Caruna currently offers the following distribution products: General, Night-time, Seasonal, and Power tariff.

In the area covered by Caruna Oy, apartments and terraced houses are subject to a basic fee per fuse. Your electricity distribution contract is drawn up for a metering point. For the metering point to be entitled to the basic fee for apartments and terraced houses, the connection must be fitted with at least three electric meters.

Read more about our products:

General distribution for low electricity usage

  • General distribution is our most common electricity distribution product. With this product, there is one meter in use. General distribution is the best product for you if you don’t use a lot of electricity.
  • General distribution is often used in apartments and terraced houses.
  • In most cases, General distribution is also the most cost-efficient choice for detached houses and holiday homes without electric heating. The General distribution tariff does not change according to the time of the day or the season.

Night-time distribution for electric storage heating

  • Night-time distribution is your best choice if your property has an electric heating system that stores heat. For example, you may have storage heaters or a central heating system with thermal storage, such as underfloor heating or radiators using hot water circulation. In that case, your water boiler is only heated at night.
  • Night-time distribution offers a reduced price for electricity used during the night (10 pm to 7 am).
  • With Night-time distribution you pay two rates, and your electric meter shows two meter readings. One is for daytime use and the other for night-time use.

Seasonal distribution for direct electric heating

  • Seasonal distribution is best suited for direct electric heating (heaters, direct underfloor heating, ceiling heating, and heat pumps). This distribution product is particularly effective if you can use alternative forms of heating in winter.
  • With Seasonal distribution you pay two rates, and your electric meter shows two meter readings. One is for winter use and the other for any other times.
  • With Seasonal distribution, you will benefit from a cheaper rate throughout the summer (1 April to 31 October) and at night (10 pm to 7 am) during the winter.

Power distribution for high-use customers

  • Power distribution products are designed for our high-use customers. In medium voltage distribution, electricity is supplied with a medium voltage of 20 kilovolts. Customers who wish to use medium voltage distribution must own a secondary substation and must be responsible for its use and any related installations.
  • The metering unit for the power fee is one hour. Caruna Oy’s and Caruna Espoo Oy’s power fee is decided according to the monthly peak power. The power fee is charged at the minimum level of 40 kW for low voltage and at the minimum level of 200 kW for medium voltage.
  • The reactive power fee is based on the monthly reactive peak power, less 20% of the amount of active power during the same month.
Change your distribution product

Changing your distribution product

You should choose the distribution product that best meets your needs and consumption. You can, however, change the product after you have used it for a year.

You may need to change the product if there has been a marked change in your electricity consumption habits. For example, you may have extended or renovated your property, or purchased several new devices that significantly increase your consumption. Changing your heating system may also make it necessary to change the form of metering. If you use less electricity, for example, you may no longer need Night-time or Seasonal distribution.

When your distribution product changes, your electric meter will be updated to reflect the new product. If you would like to benefit from the cheaper Night-time distribution, your meter reading centre must be altered. Please contact your electricity contractor for further information.

Changing your fuse size

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The right fuse size ensures that the fuse will not blow unnecessarily, even when all your electrical devices are switched on at the same time. An electricity contractor will be able to determine the right fuse size for your property, change the fuse holders and fuses as necessary, and contact your electricity distribution company on your behalf. When we receive notice of any fuse size change, we will be able to set a new distribution product for your contract.

The main fuse size cannot exceed your connection rights. To check your connection rights, see your connection contract or contact our Customer Service department.

If your fuse size increases, you should check whether your connection rights also need to be changed. If the fuses you currently have are too large for your electricity use, you should consider swapping them for a smaller size. You will also notice the change in the distribution price you pay.

If your electricity connection has to be increased, please contact your electricity contractor.

Generating your own electricity

Price list, production

Connection and network service fees for electricity production

Normally, microgeneration of less than 100 kVA can be connected to an existing point of delivery, and there will be no cost for connecting the production equipment to the electrical network. If the size of production equipment is below 2 MVA, its connection to the electrical network is determined on a case-by-case basis, depending on the construction and connection costs. For production facilities exceeding 2 MVA, the connection price depends on the construction and connection costs, and an area-based capacity reserve fee where applicable.

If the nominal output of the facility’s generator is over 1 MVA, a set consumption fee is collected for self-generated and consumed electricity. For further information about the rates for self-generated electricity, please consult our rates.

Production and consumption metering

Caruna is responsible for metering electricity supplied both by and to the grid. Caruna then sends the metering data to the electricity sales company. Consumption of self-generated electricity refers to the amount of electricity the customer has generated and then used at their own property. The customer is responsible for metering the consumption of self-generated electricity if the facility’s nominal output is between 100 kVA and 1 MVA. If the facility's nominal output is over 1 MVA, Caruna is responsible for metering the consumption of self-generated electricity.

Electricity tax on production

As an electricity producer, you must find out whether you are liable to pay electricity tax, and pay the tax for any electricity produced accordingly. The liability depends on the nominal output of the production facility and the amount of your annual production (per calendar year). For more information, see the rates at the bottom of this page.

Temporary distribution rate

We collect a fee for a temporary electricity connection in accordance with our rates. The fee covers metering, as well as the connection and disconnection of a site/temporary centre (one cable).

For temporary distribution, you will be using the General distribution product, and your normal basic fee will be doubled. A temporary connection is always made for a fixed term, without a separate connection contract. The maximum contract term is two years.

How the rates are calculated

Electricity is always distributed from the producer to the user by a distribution service operator (DSO). Your electricity distribution rate consists of the basic fee and the cost of electricity use. Distribution fees cover distribution from the electricity generator to the user, building and maintenance of the electricity network, metering, and 24/7 fault reporting.

In addition to the electricity distribution fee, electricity distribution companies’ bills include electricity tax and value-added tax.

For our current electricity distribution rates, please see the network service charges link below. Choose your rates according to the network area where your metering point is located: Caruna Oy or Caruna Espoo Oy.

Electricity tax

The taxes included in your electricity bill are the electricity tax and value-added tax, which the DSO, such as Caruna, will collect at the same time as the electricity distribution rates. The electricity tax makes up roughly 30% of the total in your electricity bill.

Tax categories

Our customers are automatically placed in electricity tax category 1, unless they have told us otherwise.

Companies must contact the Tax Administration to find out whether their operations are entitled to tax category 2. Tax category 2 is meant for industrial companies and the growing of commercial greenhouse crops that comply with the Act on excise duty on electricity. If the Tax Administration has confirmed that you are entitled to the lower tax category 2, please inform us in writing.

Electricity tax as from 1 July 2018

Tax category 1: 2.79372 cents/kWh (incl. VAT at 24%)
Tax category 2: 0.87172 cents/kWh (incl. VAT at 24%)

More information on electricity taxation can be found on the Tax Administration’s website.

Contract terms and conditions

We comply with the contract terms and conditions recommended by Finnish Energy. The contract terms and conditions recommended by Finnish Energy provide clear guidelines for agreements between a customer and an electricity distribution company. We always comply with the contract terms and conditions provided when concluding connection and network service contracts.

Terms and conditions for network service

If your metering point is located within Caruna's network areas, we conclude an electricity distribution network service contract.

Terms and conditions for network connections

If you own an electricity connection within Caruna's network areas, the terms & conditions for network connections are applicable to your connection contract.

Terms and conditions for electricity production

The terms and conditions for electricity generation connections are attached to the connection contract. The terms and conditions are applicable in a situation where electricity generation equipment owned by the connecting party or a third party on the side of the connecting party is connected to the electricity network and operates in parallel with the distribution network in such a way that the electricity generated can in part or in full be fed into the distribution network. In the above-mentioned cases, an electricity generation network service contract concerning the supply of electricity must be concluded and a separate contract concluded for possible purchase of electricity.

  • Terms and conditions for electricity production connection TLE 2014 available in Finnish and Swedish on the Energy Authority website
  • Appendix for terms and conditions for electricity production network service TVPE11 available in Finnish and Swedish on the Energy Authority website

Terms and conditions for connection and network service for a high-voltage distribution network

These terms and conditions are appended to a connection and network service contract for a high-voltage distribution network.