
Solar PV system in Neuss – planning, installation and storage
Solar PV system in Neuss and nearby: planning, installation, commissioning, battery storage and energy management. Registration and VAT rules explained.

ServiceEnergy & e-mobility
For a wallbox installation, Kara Elektrotechnik, your electrician in Neuss, first checks the house connection, meter cabinet and cable route, then plans charging power and protection. The wallbox is then installed on its own circuit, put into operation and measured. We install wallboxes from common manufacturers in houses, apartment buildings and businesses in Neuss and the surrounding area.

A professional wallbox installation is more than mounting a box on the wall. A wallbox draws a high continuous load for hours, and the house connection, meter cabinet and cable must be designed for it. That is why every installation starts with a survey of the existing setup and ends with measurements that show the protective measures work.
Which wallbox it ends up being depends on your car, parking space and preferences: with a fixed cable or a socket, with or without an app, with surplus charging for a solar PV system. We advise independently of manufacturers and install wallboxes from common brands.
It starts with a short enquiry: which car do you charge, where should the wallbox go and what charging power do you have in mind? Photos of the meter cabinet and the planned mounting spot help us assess the situation in advance.
At the on-site visit we check the house connection, the meter cabinet and the route the cable has to take. That route often decides the scope of the work: if the garage is right next to the house, it is short; if the cable has to run through several rooms, along an outside wall or under the driveway, the installation becomes more extensive. You then receive a quote for your situation.
During the installation, the cable, protection and wallbox are mounted. Finally we measure the protective measures, create a test report and show you how to operate the wallbox and set up charging.
Every wallbox must be reported to the grid operator before it is put into operation; if the total of all charging equipment in an installation exceeds 12 kVA, the operator must also approve it (§ 19 NAV). We clarify which documents are needed during planning.
In practice this means: anyone with two electric cars planning two 11 kW wallboxes ends up above 12 kVA and needs the grid operator's approval, just as with a single 22 kW wallbox. This should be settled before the wallboxes are ordered.
Since 2024, wallboxes above 4.2 kW count as controllable consumers: the grid operator may reduce their consumption to as little as 4.2 kW when needed, and in return grid fees are reduced (Federal Network Agency). Whether 11 or 22 kW makes sense for you is explained in our article Wallbox 11 kW or 22 kW.
What matters in planning depends on where the wallbox is installed and how many vehicles charge.
| Situation | What matters |
|---|---|
| Detached house | Space in the meter cabinet and cable route to the garage or parking space |
| With solar panels | Wallbox with surplus charging, connected to the inverter or energy manager |
| Two wallboxes at one house | Together above 12 kVA: plan for the grid operator's approval, consider load management |
| Rented flat | Tenants can ask the landlord to permit a charging point unless it is unreasonable for the landlord (§ 554 BGB) |
| Apartment building, underground car park, business | Several charging points with load management so the house connection is not overloaded |
In apartment buildings and businesses, several vehicles often want to charge at the same time. Load management shares the available power between the charging points, so the house connection is not overloaded and full power does not have to be reserved for every point. If you start with one charging point today, cable routes and the meter cabinet can be planned so that more can be added later without major rework.
With a solar PV system, the car can be charged with your own solar power. The wallbox must support surplus charging and be connected to the inverter or an energy manager. It then charges mainly when the system produces more power than the house is using at that moment.
This pays off most when the car is at home during the day, for example at weekends, when working from home or for a second car. How we plan PV systems and connect them with storage and a wallbox is described on our solar PV system page.
In older houses the meter cabinet is often the bottleneck. A wallbox needs space for its own protection with a circuit breaker and residual current protection, and if the cabinet is modified it must meet the grid operator's technical connection conditions (TAB). If there is no space or the cabinet is outdated, there are several options depending on its condition: an extension, an additional sub-distribution board near the parking space or a new meter cabinet.
Which option makes sense can only be judged on site. It is worth settling this question early, because a new meter cabinet also makes room for other plans such as a solar PV system, battery storage or a heat pump.
We install wallboxes all over Neuss, whether in a detached house in Holzheim or Rosellen, in the underground car park of an apartment building in the city centre or on a company car park in Hammfeld. We also work as your wallbox electrician in Kaarst, Meerbusch, Dormagen, Grevenbroich and Korschenbroich as well as in Düsseldorf, Duisburg and Cologne.
For a first assessment, your car, parking space and a photo of the meter cabinet are enough.
You can find every place we work in on our service area page.
Wallboxes from common manufacturers. We advise you which model suits your car, house connection and, if you have one, your solar system.
Every wallbox must be reported. The grid operator's approval is needed if the total of all charging equipment in the installation exceeds 12 kVA, for example at 22 kW or with two 11 kW wallboxes.
It depends on cable length, the condition of the meter cabinet and the wallbox model. After the on-site visit you receive a quote for your situation.
Not in every case. During the on-site visit we check whether there is enough space and whether its condition allows the additional protection.
Not necessarily. A separate meter is needed if you choose module 2 under § 14a EnWG, which reduces the grid energy price by a percentage.
Under § 554 BGB, tenants can ask the landlord to permit the structural change for a charging point unless it is unreasonable for the landlord. The permission should be in place before installation.
Kara Elektrotechnik
Send us your car, parking space and a photo of the meter cabinet. We will get back to you to arrange an on-site visit.