Master electrician · Licensed electrical contractor · Compliant with ÖVE/ÖNORM
Photovoltaics & Battery Storage in Vienna
Whether you need a new PV system, battery storage, a battery retrofit or a later wallbox combination: Elektro Vienna plans photovoltaics and battery storage in Vienna professionally, cleanly and in line with your existing electrical installation.
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Master electrician & licensed electrical contractor
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For detached houses, townhouses and existing buildings in Vienna
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PV system, battery storage or battery retrofit possible
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Distribution board, cabling, connection and protection properly checked
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Support with grid connection, feed-in and Wien Energie / Wiener Netze topics
Response usually within 24 hours · Initial assessment based on photos, consumption data or site visit
What determines the cost of a PV system with battery storage?
The cost mainly depends on whether only a PV system is planned, whether battery storage is added, or whether an existing system should be expanded. Key factors are the roof, system size, annual electricity consumption, battery size, cable routes, distribution board, grid handling and clean electrical integration.
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PV system without battery
A simple PV system without battery storage is usually the most affordable option. It is most realistic when the roof, distribution board and cable routes are straightforward.
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Distribution board & cable routes
An old or crowded distribution board, long cable routes or difficult wall penetrations can significantly increase the required work.
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PV system with battery storage
A battery increases the investment, but can significantly improve self-consumption. The right size depends on consumption, daily usage profile, electric car, heat pump and desired independence.
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Grid handling & feed-in
Grid access, feed-in metering point, technical documents and commissioning must be prepared properly. In Vienna, this mainly involves Wiener Netze and, depending on the tariff, Wien Energie.
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Battery retrofit
For existing PV systems, the inverter, distribution board, available space, cable routes and protection devices must be checked before adding a battery.
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Wallbox optional
If an electric car is already available or planned, a wallbox can be included in the overall planning. For wallbox-only projects, there is a separate Wallbox page.
That is why a fixed package price is rarely credible. Two houses with the same PV capacity can require very different work if the roof, battery location, distribution board, metering area or cable routes are different.
Elektro Vienna provides a realistic assessment after reviewing photos, consumption data and the technical situation. Helpful information includes photos of the roof, distribution board, metering area, technical room and possible cable routes, as well as annual electricity consumption, electric car, heat pump and existing PV system details.
Request PV or battery storage project
We usually reply within 24 hours. Please send the most important details about your property. This helps us assess whether your project is about a new PV system, battery storage, a battery retrofit or a combination with a wallbox.
How does a PV or battery storage project in Vienna work?
1. Send your request
You briefly describe the property and whether you are planning a new PV system, battery storage, a battery retrofit or a combination with a wallbox. Photos of the roof, distribution board, metering area and possible cable routes are very helpful.
2. Technical initial assessment
We check whether the project looks like a straightforward standard case or a more technically demanding implementation. We also look at the existing electrical installation and assess the next sensible steps.
3. Planning, sizing and coordination
We clarify PV size, battery storage, inverter, installation location, distribution board, protection and cable routes. If wallbox, heat pump or smart home control are relevant, they are included in the planning.
4. Implementation, testing and commissioning
The system is installed, electrically connected and tested professionally. Afterwards, commissioning is carried out and the system is explained clearly. You receive a clean technical summary of what was implemented and what to consider during operation.
What is typically included in photovoltaics and battery storage?
The goal is not just to install individual components, but to create a technically feasible and practical energy solution. The exact scope depends on the property, the existing electrical installation and whether PV, battery storage or a combined solution is planned.
Technical assessment of the PV system
We check which solution fits the property, consumption and existing electrical installation. This includes not only the roof area, but also inverter, cable routes and connection options.
Cabling, protection and distribution board adaptation
A clean implementation requires suitable cables, protection devices and enough space in the distribution board. If the existing board needs adjustment, this is included in the planning.
Integration of battery storage
If battery storage is planned, we check battery size, installation location, inverter, distribution board and sensible integration into the household.
Grid and feed-in handling
We support the technical coordination around grid access, feed-in metering point, system data and commissioning, especially with Wiener Netze and, if relevant, Wien Energie.
Battery retrofit for existing PV systems
For existing PV systems, we check whether a battery can be added in a technically sensible way and which adjustments may be required.
Integration with existing systems
If wallbox, heat pump, smart home or prepared cable routes already exist, we include them in the planning. This prevents the PV system from becoming an isolated standalone solution.
When does a PV system or battery storage make sense?
Photovoltaics and battery storage make the most sense when electricity consumption, building, roof and electrical installation fit together. In Vienna, this can apply to very different property situations.
When you want to generate your own electricity
A PV system can help cover part of your electricity demand directly at your own home. This is especially interesting for detached houses, townhouses and buildings with usable roof area.
When an electric car is planned
A wallbox can be included if an electric car is already available or planned. The actual wallbox installation remains a separate topic with its own dedicated page.
When you want to use more solar power yourself
Battery storage can store surplus solar power and make it available later. This is especially useful when there is relevant electricity consumption in the evening or at night.
When the electrical installation will be expanded
PV is often not the only change in a house. If distribution board, cabling, wallbox, heat pump or smart home are relevant, the expansion should be planned together.
When a PV system already exists
A battery can also make sense for existing PV systems. In that case, inverter, distribution board, available space and cable routes must be checked.
When the existing installation should be checked properly
Especially in existing buildings in Vienna, it is useful to realistically assess the distribution board, metering area, cable routes and protection before starting.
PV system, battery or full energy system — what makes sense?
The question is not whether the largest package is always necessary. In practice, the right solution depends on the building, electricity consumption, existing installation and your plans for the next few years.
PV system only
A PV system without battery storage can make sense if enough electricity is used during the day or if you first want a clear entry into self-generation.
PV with wallbox
If an electric car is already available or planned, a wallbox can be included in the energy planning. For charging-only projects, we refer to the dedicated Wallbox page.
PV system with battery storage
Battery storage becomes interesting when more self-generated electricity should be used in the home. Battery size and usage profile must realistically fit together.
Distribution board and connection
The additional work is often not in the panel or battery itself, but in cable routes, protection, distribution board and the existing connection setup.
Battery retrofit only
For existing PV systems, a battery retrofit can be useful. The key question is whether the existing system is technically compatible.
Elektro Vienna helps find the right expansion stage: not too small, but not unnecessarily oversized. The goal is a solution that technically fits the house.
PV battery retrofit in Vienna
If a photovoltaic system already exists, battery storage can often be retrofitted. Whether this is technically feasible and sensible depends on the existing inverter, distribution board, installation location and cable routes.
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Check existing PV system
We check which components are already installed and whether the existing system is suitable for battery retrofit.
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Distribution board & protection
Before retrofitting, we check whether the distribution board, protection devices and existing electrical installation are properly prepared.
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Inverter & compatibility
Not every battery fits every system. Depending on the existing setup, a compatible solution or an AC-coupled battery system may be more sensible.
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Space, installation location & safety
The battery needs a suitable installation location. Space, surroundings, cable routes and safe integration are taken into account.
For an initial assessment, photos of the existing inverter, possible battery location, distribution board, metering area and existing PV documents are very helpful.
Funding for PV systems & battery storage in Vienna
Depending on the project, different funding options may be relevant for photovoltaic systems and battery storage — for example the Austrian EAG investment subsidy at federal level or specific funding programmes by the City of Vienna.
Which funding option applies depends on the system size, the battery setup, the timing of the application and the technical implementation. That is why funding should always be clarified early, before ordering equipment or starting the installation.
Federal funding / EAG 2026
For the EAG investment subsidy 2026, fixed subsidy rates apply to smaller PV systems. According to the Austrian Economic Chamber, PV systems up to 10 kWp may receive 150 € per kWp, while systems above 10 and up to 20 kWp may receive 140 € per kWp.
For battery storage, the stated subsidy is 150 € per kWh. However, under the EAG scheme, battery storage is generally only subsidised in combination with a newly installed or expanded PV system.
Vienna battery storage funding
For stationary battery storage systems in Vienna, a separate funding programme by the City of Vienna may also be relevant.
The City of Vienna states 200 € per kWh of nominal storage capacity, or a maximum of 30% of eligible total costs. Funding is limited to a maximum subsidised storage capacity of 10 kWh.
Important: According to the City of Vienna, this funding cannot be combined with funding under the EAG or with funding from the Climate and Energy Fund.
Clarify funding before implementation
In many cases, funding applications must be submitted before ordering, construction, installation or commissioning. That is why we consider possible funding requirements early when planning PV and battery storage projects.
We can provide an initial technical assessment and point out which funding bodies may be relevant for your project and which technical documents may be needed for the next steps.
Please note: Funding conditions, budgets, deadlines and subsidy rates can change. The figures above are provided as general guidance, based on the information available in May 2026. The final assessment must always be based on the current guidelines of the relevant funding body.
Planning a PV system or battery storage solution in Vienna?
Send us photos of your distribution board, meter area, technical room and — if available — your inverter or existing PV system. We will provide an initial technical assessment and highlight which funding topics should be clarified early.
Häufige Fragen zu PV und Speicher
What you can rely on with Elektro Vienna
We do not plan PV and battery storage as generic packages, but according to the property, existing installation and actual electricity demand.
Technically sound assessment
We check whether PV system, battery storage or retrofit really make sense in your case and avoid unnecessary extra work.
Existing installation and cable routes are realistically considered
Especially in existing buildings in Vienna, distribution board, metering area, cable routes and installation locations are often decisive for effort and solution.
Planning, connection and commissioning from one provider
We consider PV, battery storage, distribution board, protection and possible future extensions as one connected electrical solution.
Have PV or battery storage in Vienna planned professionally
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For detached houses, townhouses and existing buildings in Vienna
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PV system, battery storage or battery retrofit possible
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Wallbox optional as an extension
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Photos and existing documents help with a faster initial assessment
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Support with electrical connection, feed-in and grid handling