E-Mobility:

Everything you need to know about e-charging stations

Although charging via a household socket is possible in principle, it is not recommended - it is slow, inefficient and, in the worst case, can overload the electrical installation. A wallbox (wall charging station), on the other hand, offers

faster charging (3x as fast or more)
more safety thanks to integrated protection mechanisms
more convenience, e.g. through app control or charging management

Power connection: A three-phase power connection (400 V) is ideal. The electrical installation must be sufficiently dimensioned.
Fuse protection: A separate fuse protection with residual current circuit breaker (FI type A-EV or B) is required.
Space and installation: The wallbox should be installed protected from the weather (e.g. in the garage or under a carport). There must be enough space for the vehicle and the charging cable.
Ownership or tenancy: If you are planning to install charging points for electric cars in an apartment building, you must observe both technical and legal requirements. As a rule, the owner's consent is required. Depending on the canton, owners may require a building permit or a formal resolution by the condominium owners' meeting. Tenants, on the other hand, must obtain the written consent of the landlord before implementation. It is advisable to coordinate the project with the management or owners' association at an early stage, especially in the case of shared parking spaces.
Technical notification obligation (TAG): Regardless of ownership, the electrical installer is obliged to notify the grid operator of the planned charging infrastructure. This requires a technical connection application (TAG) and an installation notification. Installation may only begin once the grid operator has checked and approved the installation.

The most common wallboxes offer charging capacities from 3.7 kW to 22 kW. The power that makes sense for you depends on several factors:

Vehicle type: How much charging power can your electric car take? The charging capacity that an electric car can accept depends on the vehicle model and the charging system used. For most e-cars in Europe and Switzerland, 11 kW is the standard (e.g. for an ID.4). If in doubt, you can quickly find this out on the respective manufacturer's website.
Usage behavior: Do you charge overnight or do you need quick intermediate charges? If you mostly charge overnight, an 11 kW wallbox is perfectly adequate; a normal battery will be fully charged in 6-8 hours. In addition, a home installation is usually easier and cheaper to purchase. If you charge more often in between (e.g. during the day, shorter charging windows), a 22 kW wallbox can be useful.

1. How strong is your house connection?

Most single-family homes have a three-phase connection with 400 V voltage. The current (amperes) determines the maximum power:

If your house is fused with 3 × 16 A (very common), you can operate an 11 kW wallbox - without any major changes.
for 22 kW you may need new cables, this can be quickly requested from an electrician or directly from us.

2. Other electricity consumers in the house

If you have a heat pump, sauna, instantaneous water heater or PV system with storage, the total load can increase quickly.

In such cases, load management is useful or necessary - so that you don't have to charge your car and run the oven at full throttle at the same time, for example.

Tip: For individual advice, please get in touch with us using our contact form. We will be happy to help you quickly and without obligation.

Modern wallboxes often offer more than just electricity. These features may be of interest to you:

Load management (prevents overloading with multiple consumers)
PV surplus charging (can be ideally combined with a solar system)
App control and consumption overview
RFID access (e.g. for billing or for multiple users)
Bidirectional charging (vehicle to grid): Please note that bidirectional charging is only possible with certain vehicle models. In Switzerland, only a few electric cars currently support this function, for example the Honda e, the Nissan Leaf and Mitsubishi i-MiEV.

Subsidy: In our store you will find a large selection of tested and efficient wallboxes and e-charging stations - suitable for every living situation and every e-car. Benefit now from the full subsidy at the click of a mouse.

Conditions: All grid connection customers - whether households (private individuals), companies or public institutions - in the Primeo Energie grid area can benefit from the promotion. A subsidy can only be claimed in the store during the official promotion period. There is no entitlement to subsequent payment.

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Technical information on wallboxes

What is the MID meter?

The MID (Measurement Instruments Directive) is a directive that was passed by the EU Parliament in March 2004. Energy meters bearing the MID conformity mark can be used for billing energy costs. This enables, for example, the separate billing of a company car.

What does RFID activation mean?

Activation via RFID (Radio-Frequency Identification) enables charging processes to be controlled using an RFID card and authentication at the wallbox. It is also possible to assign charging processes to the respective charging card. An RFID-secured wallbox is a modern, contactless and user-friendly activation option.

Do wallboxes have an integrated circuit breaker?

Wallboxes normally have internal protective functions (e.g. residual current protection = residual current device or DC residual current monitoring), but no replacement for an external circuit breaker. This means that a separate circuit breaker for the charging station circuit must be installed in the fuse box upstream of the wallbox. Typically suitably dimensioned, e.g. 16 A or 20 A, depending on the wallbox power and cable cross-section. In Switzerland, an RCD type A EV or type B (for DC residual currents) is usually also required.

Checklist for installation

1. Select charging station according to individual requirements

Charging capacity: How many kW can your vehicle take and what charging behavior do you have?
Check conformity with calibration law

Is the station charged with household electricity or the solar system?

2. Where should the wallbox be installed?

3. What power do I want to charge with?

4. Power connection checked for suitability?

5. Do you need a separate electricity meter?

6. Do you have to register your wallbox with the grid operator?

In Switzerland, you do not have to register your charging station with the energy supplier.

7. How would you like to insure the wallbox?

Most liability insurance policies (usually home or building liability insurance) allow the wallbox to be co-insured. For example, you would be liable if a third party were to be injured due to a fault with the wallbox.
With homeowners' insurance, it is often necessary to explicitly notify the insurer after installation. This is useful for possible damage to the charging station caused by fire, lightning, vandalism, etc.

For high-priced charging stations with battery storage or PV interfaces, electronics insurance can be useful.

Please note: This information is not a substitute for insurance and financial advice and no liability is accepted. It is best to ask your insurance company directly.

E-Mobility:

Everything you need to know about e-charging stations

Why have your own wallbox?

Checklist: Requirements in the house or apartment

What charging power do I need?