How Much Does a 10 kWp PV System with Storage Cost in Total?

How Much Does a 10 kWp PV System with Storage Cost in Total?

In an era where sustainable living transitions from a choice to a necessity, the adoption of solar energy has skyrocketed, driven by its promise of a cleaner, more sustainable future. At the heart of this green revolution lies the potential of photovoltaic (PV) systems, particularly those equipped with storage capabilities to ensure a continuous energy supply.

A 10 kWp PV system with storage emerges as a popular choice for many, balancing capacity, efficiency, and affordability. But one pivotal question remains at the forefront of many minds: How much does a 10 kWp PV system with storage cost?

This comprehensive exploration dives deep into the financial, technical, and practical aspects of owning a complete 10 kWp PV system with storage, guiding you through the intricate web of investment and considerations that accompany the adoption of such a system. Let's dive in!

Who Is a Complete 10 kWp PV System with Storage Suitable For?

Though popular, a complete 10 kWp PV system is not a one-size-fits-all solution. Understanding who stands to gain the most from this system is crucial in making an informed decision. Here's a look at the specific situations in which a PV system of 10 kWp with storage can really shine.

Residential Homeowners with High Energy Demands:

For families with ample roof space and living in areas with abundant sunlight throughout the year, a 10 kWp PV system with storage complete package can significantly reduce, if not completely cover, their electricity bills. This system is especially suitable for homes with high energy consumption due to air conditioning, electric heating, or the use of numerous electrical appliances. The addition of storage capabilities ensures that excess energy generated during the day can power your home at night or during cloudy days, maximizing self-sufficiency.

In contrast, for apartment dwellers or those with limited space, a balcony power plant is more suitable. These compact plug-and-play systems, like the Anker SOLIX balcony power plant, can be easily installed on balconies or small outdoor areas, making solar power accessible even in urban environments.

Small to Medium Enterprises (SMEs):

Businesses with moderate energy needs, such as small offices, workshops, or retail stores, can find a 10 kWp system an ideal match. For SMEs aiming to cut operational costs and showcase their commitment to sustainability, this system offers a balance between size and functionality. It not only reduces electricity bills but also can serve as a statement of corporate social responsibility, enhancing the business's image among eco-conscious consumers.

Agricultural Operations & Remote locations

Farms and agricultural operations that require a constant power supply for irrigation, lighting, and machinery can benefit greatly from a 10 kWp PV system with storage. This system can provide a reliable energy source, reduce reliance on diesel generators, and lower operational costs. In remote areas, where grid electricity is unreliable or unavailable, solar power with storage becomes not just an option, but a necessity.

On-Grid Electricity Price for PV System with 10 kWp Storage

Understanding the on-grid electricity price is crucial as it directly influences the return on investment (ROI) and operational savings of a 10 kWp PV system with storage. As of February 2024, the average electricity price in Germany stands at €0.06 /kWh, and the head of the German grid agency has signaled that electricity prices are expected to remain high throughout the year.

For prospective and current system owners, these high electricity prices underscore the value of generating and storing your own power. By reducing reliance on grid electricity, you can shield yourselves from the volatility of energy prices. Additionally, these high on-grid prices make the prospect of selling excess energy back to the grid through feed-in tariffs more financially rewarding.

Cost of a Complete PV System with 10 KWP Storage

Here's a detailed breakdown of how much a 10 kWp PV system with storage costs before installation, providing a clear picture of the investment required:

PV Modules

The heart of any solar power system lies in its PV modules, or solar panels, responsible for capturing sunlight and converting it into electricity. For a 10 kWp system, the cost of PV modules ranges from €1,500 to €4,500. This price variation accounts for differences in module efficiency, brand, and warranty conditions, allowing for flexibility in balancing cost and performance.


The inverter plays a pivotal role in converting the DC electricity generated by the PV modules into AC electricity that can be used by household appliances or fed into the grid. The cost for an inverter suitable for a 10 kWp system falls between €1,750 and €2,000. This range reflects the various features inverters may offer, including efficiency, reliability, and smart-grid compatibility.


Wiring, including both AC and DC cables, connectors, and protections, is essential for the safe and efficient operation of a solar PV system. The cost for wiring a 10 kWp system ranges from €2,750 to €3,500. The price variation here can be attributed to the quality of materials used and the complexity of the system's design.

10 kWh Battery Storage

Storage solutions are integral for those seeking energy independence and the ability to use solar power on demand, regardless of sunlight availability. The cost for adding a 10-kWh battery storage system to a 10 kWp PV setup is between €8,000 and €10,000. This investment not only enhances the system's utility by providing backup power during outages but also maximizes the financial benefits of solar energy by storing excess production for later use.

Taking into account all the components necessary for a functional 10 kWp PV system with storage, the total cost before installation can range from €14,000 to €20,000. Here's a table outlining the financial outlay required to procure the core components of a complete 10 kWp PV system with storage:

System Components

Cost per kWp (€)

Total Costs (€)

PV Module

150 – 450 €

1,500 - 4,500 €


175 – 200 €

1,750 - 2,000 €


275 – 350 €

2,750 - 3,500 €

10 kWh Battery Storage


8,000 - 10,000 €

Total (with storage)

1,400 – 2,000 €

14,000 - 20,000 €

Installation and Maintenance Costs of 10kWp PV System with Storage

After delving into the financial investment required for the components of a 10 kWp PV system with storage, it's essential to consider the next critical steps: installation and ongoing maintenance. These phases are integral to ensuring your solar power system not only gets off to a good start but also continues to operate efficiently over its lifespan.

Installation Costs:

The installation process of a PV system is intricate, involving not just the placement of panels but also ensuring their optimal operation through correct setup and connectivity.

  • Mounting System:The foundation of any robust PV system lies in its mounting structure, which secures the panels in place and aligns them for maximum sunlight absorption. For a 10 kWp system, the cost for the mounting system ranges from €1,000 to €1,500. This variance accounts for different roofing materials and structures, as well as the complexity of the installation.
  • Installation Labor Costs: Professional installation is essential for the efficient and safe operation of a solar PV system. Labor costs for installing a 10 kWp system with storage can vary between €2,500 and €4,000, depending on the complexity of the system, the expertise of the technicians, and geographical location.

Combining the expenses for both components and installation, the overall investment for a complete 10 kWp PV system with storage spans between €17,500 and €25,500. In contrast, for those looking for a more affordable and less complex option, a compact balcony power plant with storage presents a viable alternative.

Take, for instance, the Anker SOLIX balcony power plant with storage, featuring a 1600Wh battery, is priced at only €2,198.00. Notably, its user-friendly Plug & Play setup allows for a straightforward installation process that you can typically complete on your own in approximately 2 hours, eliminating installation costs.

Maintenance Costs

Maintaining a PV system in top working condition is essential for maximizing its energy output and lifespan. While solar systems are generally low maintenance, periodic checks and upkeep are necessary. The annual maintenance costs for a 10 kWp PV system with storage are estimated to be between 1% to 2% of the total system cost. This translates to approximately €175 to €510 annually. These costs cover routine inspections, cleaning of solar panels to ensure maximum efficiency, and the replacement of any worn components over time.

Subsidies Available for 10kWp PV System with Storage

Investing in a complete PV system with 10 kWp storage is a sustainable choice and can be financially supported by various subsidies and incentives. Understanding these incentives can significantly reduce the initial investment and enhance the system's overall value.

Low-Interest KfW Loans

For homeowners and businesses in Germany looking to install a complete 10 kWp PV system with storage, one of the most compelling forms of support comes from the Kreditanstalt für Wiederaufbau (KfW). This state-owned development bank offers low-interest loans designed to make the transition to solar energy more accessible and affordable.

Specifically, if your 10 kWp PV system with storage has a self-consumption rate of at least 30%, you are eligible for a subsidy of up to €7,700, making the initial investment more manageable and appealing. To qualify for a KfW loan, it's essential that the PV system is connected to the public power grid, ensuring that any excess energy produced can be shared with the wider community.

Feed-in Tariff

In addition to financial assistance for purchasing and installing the system, system owners are entitled to a feed-in tariff for the solar power they generate and feed back into the grid. This scheme compensates you for the renewable energy your system contributes to the national network, creating a continuous income stream over the years. As of March 2024, the feed-in tariff for PV systems up to 10 kWp stands at € 0.0811 per kWh.

Local Subsidies

Beyond federal support, many local municipalities recognize the value of renewable energy and encourage their residents to install photovoltaic systems and battery storage through local subsidies. These incentives can vary widely depending on your location, so it's beneficial to research and reach out to your local government or energy office to explore any additional financial support available for your solar energy project.

How Much Power Does a Complete 10 kWp PV System with Storage Have?

A complete PV system with 10 kWp storage generates a substantial amount of power, making it a reliable source for meeting energy needs.

The power output of a 10 kWp PV system can be estimated by multiplying the nominal output of the system by the average peak sun hours it receives per day. This calculation provides a straightforward way to understand the system's daily energy production potential:

  • Nominal Output:The 'p' in kWp stands for 'peak', referring to the maximum output a system can produce under ideal conditions. For a 10 kWp system, this means up to 10 kW under optimal sunlight and temperature conditions.
  • Average Peak Sun Hours:In Germany, the average peak sun hours can vary significantly across different regions and seasons, ranging from about 2 to 4 hours per day. For calculation purposes, let's use an average value of 3 peak sun hours, which is a reasonable estimate for much of the country on an annual basis.

Given these parameters, the daily energy output can be calculated as follows:

10kWp × 3 average peak sun hours = 30kWh per day

Annual Energy Production:

To extend this calculation to an annual figure, assuming 365 days in a year:

30kWh/day × 365days = 10,950kWh/year

This estimation highlights that a complete 10 kWp PV system in Germany can potentially generate around 10,950 kWh of electricity annually.

However, the actual output is influenced by several key factors:

  • Geographic Location:Solar irradiance varies across Germany, with southern regions generally receiving more sunlight than northern areas.
  • System Orientation and Installation Angle:Optimal alignment and inclination of solar panels can maximize sun exposure.
  • Seasonal Variations:During the summer months, when days are longer and sunlight is more abundant, a 10 kWp system will produce significantly more electricity compared to the winter months.

The Process of Planning a Complete PV System with Storage

Planning a complete 10 kWp PV system with storage involves a systematic approach requiring various key elements. Each step plays a part in ensuring the efficiency, reliability, and longevity of the solar energy solution.

1. Energy Audit and Consumption Analysis

Conducting a thorough energy audit and consumption analysis involves evaluating your current energy consumption patterns and understanding your unique needs.

  • Analyze historical energy bills to identify consumption patterns.
  • Consider potential energy-efficient upgrades to reduce overall demand.
  • Estimate future energy needs to determine the appropriate system size.

2. Site Assessment

A comprehensive site assessment is needed to optimize the placement and efficiency of the PV system. This phase involves evaluating the physical characteristics of your location, such as sunlight exposure, shading, and available space.

  • Determine the solar potential of the site by assessing daily sunlight hours.
  • Identify and mitigate any potential shading obstacles, such as trees or structures.
  • Optimize panel placement for maximum exposure and energy production.

3. System Design

Once the energy audit and site assessment are complete, the focus shifts to meticulous system design. This includes determining the appropriate system size, selecting high-quality components, and ensuring the overall compatibility of the system.

  • Choose reliable solar panels and inverters from reputable manufacturers.
  • Size the storage system appropriately to meet your specific energy storage needs.
  • Consider future expansion possibilities when designing the system.

4. Permitting and Regulations

Handling the permitting and regulatory side of things involves obtaining the necessary approvals and adhering to local building codes and zoning requirements.

  • Start by understanding the specific requirements set by the Federal Network Agency and local building codes.
  • Early engagement with your local municipality and the relevant utility company is essential. These entities can provide specific guidelines on zoning, building permits, and grid connection requirements.
  • Ensure compliance with all safety and environmentalstandards set by the German Electrical and Electronic Equipment Act (ElektroG) and the Renewable Energy Sources Act (EEG).

5. Installation

Hiring experienced installers ensures a safe and efficient setup, with adherence to safety standards and best practices.

  • Select qualified and certified installers with experience in solar PV systems.
  • Confirm that the installation team follows safety protocols during the entire process.
  • Conduct a thorough inspection and testing after installation to guarantee system functionality.

6. Monitoring and Maintenance

Implementing a robust monitoring and maintenance plan allows for maximizing the lifespan and efficiency of the PV system. Regular monitoring allows for proactive identification of issues, and maintenance ensures optimal performance.

  • Invest in a reliable monitoring system to track energy production and system health.
  • Schedule routine maintenance checks, including cleaning panels and inspecting electrical components.
  • Address any issues promptly to prevent potential performance degradation.


So, how much does a 10 kWp PV system with storage cost? As we've explored, the estimated is around €17,500 to €25,500, including installation. This figure is subject to variation based on factors such as geographical location, energy prices, the brand of solar equipment chosen, installation method, and available incentives or rebates. We hope this guide has provided actionable knowledge about the nuanced costs and processes involved to help you make an informed decision. As the sun continues to rise on a world embracing solar power, investing in a PV system with storage stands out as a beacon of hope and a step towards a brighter, greener future.


Does the PV system with 10 kWp storage need to pay tax?

No, operators of a 10 kWp PV system with storage installed on private single-family homes in Germany do not need to pay sales or income tax on the electricity generated. According to the German Renewable Energy Sources Act (EEG) 2023, private PV systems with a nominal output of up to 30 kWp are exempt from these taxes.

How much electricity can a 10kWp photovoltaic system generate?

A 10kWp photovoltaic system typically generates 30 to 45 kWh daily, translating to approximately 10,000 to 17,000 kWh annually. Actual production may vary due to factors like geographic location, weather conditions, and system efficiency.

How many kilowatts is needed for a single-family home?

On average, a single-family home in Germany requires about 3,000 kWh (kilowatt-hours) of electricity annually. The actual electricity needs can vary significantly based on factors such as the size of the home, the number of occupants, and the types and usage of electrical appliances.