Grid connection: Information for specialist partners

Planning & connection capacity

Connect customers’ buildings to the grid

This is a standard step in the construction process when building a new property. However, for existing buildings too, it is crucial to check at an early stage whether the existing connection capacity meets the new requirements. BKW supports you with these clarifications and with planning the appropriate grid connection.

Grid connection capacity enquiry

Are you an electricity customer and would like to connect your building, construction site, event or similar to the grid?

Here you will find more information

Step by step

Grid connection with BKW in five steps

The grid connection follows a clearly regulated process. As a specialist partner, you take care of planning and submission. BKW provides the grid and ensures safe operation.

Depending on the type of installation, additional requirements must be taken into account: Q(U) control for inverters, external grid and system protection, emergency control, metering concept, instrument transformer metering, medium-voltage connection or specifications for ZEV/vZEV and feed-in systems.

Step 01

Building permit

You submit your application for connection to the electricity grid to the municipality together with the client’s building application.

Step 02

Technical connection request

If a system with grid impact is installed, a Technical Connection Application (TAG) is also required.

Step 03

Application via notification form

As a specialist partner, you apply for the grid connection with BKW and order the necessary components.

Step 04

Quote and order

You will receive our offer and confirm your order by means of the form and signature.

Step 05

Installation and commissioning

As a rule, the property can be connected to our grid within a few weeks of receipt of the signed grid connection order.

Details

All information about the individual steps

The answers are deliberately formulated in technical terms and are aimed at electrical installers, planners and other specialist partners.

Downloads

Documentation for grid connection projects

Guides and technical documents for planning, registration and implementation.

Information sheet about your grid connection

Download

Carry out work near cables safely

Download

“Electricity Connection” form (Canton of Bern)

Download

“Application for electrical energy connection” form (cantons of JU, BL and SO)

Download

Fact sheet: connection of energy generation systems >= 500 kW

Download

Requirements for the telecontrol connection of EEA ≥ 500 kW

Download

Order form for remote control component EEA

Download

Technical connection requests in the BKW grid area

Download

Inverter - Q(U) control setting (PDF, 100 kB)

Download

Technical connection requirements for medium-voltage installations (PDF, 1.2 MB)

Download

BKW grid connection tariffs

Tariffs for installations on low voltage within the building zone (PDF, 83 kB)

Download

Tariffs for installations on low voltage outside the building zone

Download

Tariffs for installations at medium voltage (PDF, 64 kB)

Download

Tariffs for grid connection accessories

Download

Tariffs for connecting distribution system operators

Download

How much does the grid connection cost at BKW?

The costs for a grid connection with BKW are made up as follows:

Grid connection: The so-called grid connection contribution charged by BKW covers part of the costs for your grid expansion. The contribution is payable once only and depends on the cable cross-section of the connection you have ordered.
Grid costs: The grid cost contribution covers part of the costs of the existing distribution grid and is charged depending on the rated current of the connection overcurrent circuit-breaker. The rated current of the connection overcurrent circuit-breaker is the maximum permissible current that the fuse can carry under normal operating conditions.
House connection box: The house connection box is usually attached to the outside wall of your building. Both the box and the installation can be ordered from BKW.
Surcharge for the house connection box inside the building: If you would like to have the house connection box (or the connection overcurrent circuit breaker) installed inside the house, a surcharge of CHF 400.- will be charged. The connection overcurrent circuit breaker is the fuse installed in the house connection box.
Cable sealing element: The cable sealing element seals the inside of the cable protection pipe and is charged at a flat rate of CHF 200.-.

Examples

BKW grid connection [CHF]

Grid costs [CHF]

House connection box [CHF]

Total excl. VAT [CHF]

Single-family house with heat pump (40 amperes)

5'100

40 × 150 (6'000)

316

11'416*

Small business / agriculture (100 amperes)

5'100

100 × 150 (15'000)

366

20'466*

Commercial business (160 amperes)

6'100

160 × 150 (24'000)

366

30'466

*Calculation examples are intended as a guide. Calculation excludes the surcharge for installing the house connection box inside the building, as well as the cable sealing element.

FAQ

Frequently asked questions about grid connection at BKW

For project-specific questions about grid connection, connection capacity, TAG, notification forms, equipment orders, metering or commissioning, the BKW grid connection team can help.