your PV system

Mounting solar modules on a rooftop done by the Solarzentrum Stuttgart

The steps to your PV system

Step 1: First conversation

The first appointment takes place at your premises with one of our experienced project managers. We will measure your roof and talk to you about your requirements and general conditions.

Step 2: Offer

After the initial consultation, we draw up an individual system plan with various configuration options and battery storage sizes and their cost range. We work with you to develop your desired system and prepare a detailed offer for you.

Step 3: Planning

After you place the order, we schedule the installation date with you and make all the necessary inquiries with the network operator. If necessary, we request external expert opinions, e.g. on statics.

Step 4: Installing

For the grid-compliant electrical installation of your PV system, we attach particular importance to proper and safe cable routing and good lightning protection.

Step 5: Commissioning

For commissioning with all measurement protocols and a folder with data sheets, planning documents and official documents, we will thoroughly instruct you in the function of your PV system.

Ready!

Even after commissioning, we are available to answer any questions or queries you may have.

Several Rooftop pv systems build by the Solarzentrum Stuttgart
103
Installed PV systems
1281
Installed PV power [kWp]

PV Installation FAQ

FAQ about Photovoltaic Installation

Are you planning to install your own solar system and want to know what matters during planning and installation? The following questions about photovoltaic systems are frequently asked by our customers:

Do you offer complete solutions including battery storage and wallboxes?

Yes. Upon request, we install battery storage systems and wallboxes. To optimize self-consumption, we ensure communication between the inverter, battery, wallbox, and heat pump. This makes your solar system the central component of a sustainable energy concept.

How long does it take to install a PV system?

The actual installation phase — including the substructure, modules, and inverter — usually takes between two and four days, depending on the roof type and system size.

Please note: The grid connection request must be submitted to the utility company approximately one full month before commissioning.

Do you also provide maintenance for the PV system?

We are always available for our customers, even without a formal maintenance contract. Thanks to the notification features of modern inverters, we are automatically informed of any faults and can often perform remote diagnostics quickly. This ensures your solar system remains efficient over the long term.

What are the requirements for my roof?

Your roof should have sufficient load-bearing capacity and be in good structural condition. Ideally, it should face south or east/west, or be a flat roof. Any existing shading (e.g., from trees or chimneys) will be considered during the planning process.

Who is allowed to install a photovoltaic system?

Installation should only be carried out by qualified professionals. The electrical connection in particular must be completed by a certified electrician. Self-installation is not recommended for safety and warranty reasons.

Do I need a permit or registration for the system?

In most cases, registration with the local grid utility company and entry into the "Marktstammdatenregister" is sufficient. A building permit is typically not required for residential homes — except for listed buildings or special structures.

We handle the grid connection request and assist you with all required documentation.

What funding options are available in Stuttgart?

The City of Stuttgart's Solaroffensive currently supports mainly accompanying measures for new PV systems, such as electrical work and meter cabinets, scaffolding, structural checks, necessary roof work, lightning protection, and ripple control receivers. PV modules, mounting systems, inverters, and their installation are not eligible according to the funding guideline.

Eligible accompanying measures can receive up to 50% of net costs: up to €300/kWp for rooftop PV and up to €400/kWp for facade systems or PV over green roofs, with a maximum of €30,000 per application. Battery storage installed with a new PV system is funded at €100/kWh of usable storage capacity; up to 1 kWh of storage capacity per kWp of PV capacity is eligible. Important: the application must be submitted before commissioning the work. We are happy to explain the current funding conditions and support you with the application.

Do I have to install a new PV system when renovating my roof?

In Baden-Württemberg, a PV Obligation applies for major roof renovations. Such renovations include projects where the roof covering or waterproofing is completely renewed. The prerequisite is a suitable solar surface for PV use. We recommend reading the Practical Guide to the PV Obligation for detailed information.

Interested?

Please contact us if you are interested.We will be happy to advise you!

Find out more about our activities in our blog

See all blog entries »

Our blog contains various entries on the subject of photovoltaics. Take a look and find out more.

Drone flying above a photovoltaic module

First Successful Drone Test Flights for EL & PL Inspection

From backyard tests to PV power plants: Solarzentrum Stuttgart has successfully completed the first drone test flights for electroluminescence (EL) and photoluminescence (PL) inspection under daylight conditions – including meaningful PL results during cloudy winter weather.

PV plant in Spain during EL inspection after module delivery

EL inspection in Spain

Solarzentrum Stuttgart inspects modules after delivery at four 50 MWp PV sides in Spain.

DaySy Rover performing daylight electroluminescence inspection on a ground-mounted PV system

DaySy Rover

Solarzentrum Stuttgart develops and tests the new fully automated daylight electroluminescence robot for inspecting ground-mounted systems.