Breaking Down Expenses: Solar System with Storage Costs

Breaking Down Expenses: Solar System with Storage Costs

In the quest for sustainable and reliable energy solutions, the adoption of a solar system with storage has surged, offering a beacon of hope for environmentally conscious homeowners and businesses alike. This innovative technology not only heralds a new era of energy independence but also introduces an intriguing discussion around the solar system with storage costs. As we delve into the multifaceted benefits of these systems, including their ability to significantly reduce electricity bills and minimize environmental impact, it becomes essential to understand how their costs are structured and, importantly, when such an investment will begin to pay for itself. Through this blog, we will navigate the economic landscape of solar systems with storage, shedding light on the initial outlay, operational savings, and the journey to achieving a return on your green investment.

Benefits of Solar System with Storage

Here are some of the benefits of a solar system with storage:

  1. Energy Independence:Solar systems with storage empower homeowners by providing energy independence. By generating and storing your own electricity, you are less reliant on the grid and can mitigate the impact of power outages and electricity price fluctuations. This autonomy is especially beneficial in areas prone to power outages or where electricity costs are high.
  1. Reduced Electricity Bills:These systems can significantly lower electricity bills since they allow you to use stored solar energy during peak tariff times. Instead of drawing expensive grid electricity when the rates are high, you leverage your stored power, leading to considerable savings.
  1. Renewable Energy Usage Maximization:Solar storage enables the maximization of renewable energy usage by storing excess generation during sunny periods and using it when solar production is low. This ensures more efficient use of the generated electricity, reducing the wastage that occurs when solar energy generated exceeds immediate demand.
  1. Lower Environmental Impact:By optimizing the use of solar energy, these systems reduce reliance on fossil fuels, decrease carbon footprint, and contribute to a cleaner environment. The ability to store and use solar electricity directly translates to fewer emissions and a sustainable, green energy solution.
  1. Increased Grid Stability:Solar systems with storage can contribute/put up to the stability of the energy grid. During times of high demand, stored energy can be fed back into the grid, alleviating pressure on the grid and greatly reducing the likelihood of blackouts. This not only ensures a more reliable electricity supply for everyone but also allows solar storage owners to potentially benefit from feed-in tariffs or other incentives.

How the Costs of Solar Systems with Storage are Structured

Here's how solar system costs with storage are structured:

Electricity Storage Cost

The financial commitment for solar system storage costs varies significantly, ranging from €9,000 to €20,000. When bundled with a complete photovoltaic system for a single-family residence, the price marginally rises to approximately €20,400. The variance in solar systems with storage costs is attributable to factors such as size, performance, and storage technology employed by the system. Notably, the initial purchase price does not directly indicate cost efficiency. Instead, discerning buyers evaluate the price per kilowatt-hour of storage capacity, which typically falls between €700 and €2,400. This metric offers a clearer perspective on storage value, distinct from the overall longevity cost per stored kilowatt-hour.

Solar Module Cost

In Germany, the cost of solar panels averages €3 per watt, slightly higher than the US average of $2.66 per watt. For a typical 7.5-kilowatt system, the installation cost rounds off to about €17,915, factoring in the solar tax credit, this cost can ascend to €25,618. However, these figures are merely estimations, with actual costs subject to variability based on individual energy needs and choice of contractor. Despite the steep initial outlay, the average German household stands to save approximately €13,000 in power bills over two decades, underscoring the financial viability of solar investments.

Installation Cost

The complexity of installing the system, which includes tasks like cabling and calibration, significantly influences the final cost. The quoted figures usually encompass installation charges, but generally speaking, installation costs between €900 and €2,300. Although costs exceeding €4,000 are rare, they can arise if unique requirements are specified.

When will a Solar System with Storage Pay For Itself?

The payback period for a solar system with storage varies significantly based on several key factors, including the initial installation cost, annual savings, energy production, and utility costs. Generally, for a 4kW system costing around £4,800, homeowners can expect savings between €90 and €240 per year. Factoring in the average installation cost and potential annual savings, the payback period ranges from 12 to 26 years. This period could be shorter or longer depending on specific variables like local electricity rates, the amount of sunlight received, and whether the system is eligible for Smart Export Guarantee tariffs, which allow for selling excess energy back to the grid. Furthermore, incorporating battery storage may extend the payback period due to higher upfront costs, despite potentially increasing the system's utility by enabling energy storage for use during peak times or selling back to the grid.

Given these considerations, the concept of a balcony power plant emerges as an intriguing and accessible alternative for urban dwellers or those with limited space. Check out these two options from Anker!

  • Anker SOLIX Balcony Power Plant (2× RS40P Panel 445W, Micro Inverter 600W/800W, Balcony Brackets)

The Anker SOLIX balcony power plant is a sleek, black solar solution equipped with two RS40P panels that produce 445W. This balcony power plant includes a high-performance micro-inverter that can be selected in either 600W or 800W models. Tailored for balcony installation, it offers potential electricity cost savings of up to €4272 over 30 years, thanks to its top efficiency rate of 25%. The system is backed by a robust 30-year performance guarantee, ensuring a minimum efficiency of 88.8%. It's designed for easy DIY setup in about 2 hours, making it highly accessible. Enhanced by real-time data monitoring via the Anker app, it provides users with detailed control and insights into their energy consumption.

  • Anker SOLIX Balcony Power Plant (890W PV) with Storage (1600Wh) and Balcony Brackets

The Anker SOLIX balcony power plant with storage is a game-changing solution for boosting your energy savings. It features an 890W PV array and a 1600Wh storage capacity, promising to cut down your electricity bills by up to €9,612 over 30 years. This balcony power plant with storage is built to last, with a storage battery that supports 6,000 charging cycles. Installation is a breeze, taking just 2 hours, and its flexible design allows for adjustments to ensure optimal power generation. With the Anker app, you'll have access to real-time energy data, giving you insights into your power usage and production at your fingertips.


Indeed, investing in a solar system with storage costs is a smart move for anyone looking to reduce their energy costs and help the environment. While the upfront cost can be high, the long-term savings and benefits make it worthwhile. Plus, as the cost of these systems continues to go down, you'll be on your way to becoming more self-sufficient. This choice not only saves you money but also supports a greener lifestyle.


Here are some commonly asked questions about solar system with storage costs.

How Many kWp Do I Need for a Single-Family Home?

The kWp (kilowatt peak) needed for a single-family home varies widely based on several factors such as location, energy consumption, and solar insolation. Typically, a home might require a system ranging from 3 to 8 kWp. An average household may opt for 5 kWp system to cover a big portion of the electricity needs, depending on the efficiency of the panels and the household's energy consumption patterns.

How Long Does a 5 kWh Storage Device Last?

A 5 kWh storage device's duration depends on the power demand. For instance, if an average home uses about 1 kW per hour, the device could potentially last for 5 hours. This duration decreases with higher consumption rates. For essential loads like LED lights and a fridge, it could last longer. However, the duration would be significantly shorter with heavier consumption, such as running an HVAC system.

How Big Should a Battery Storage Unit Be for a Solar System?

The appropriate size for a battery storage unit in a solar system depends on the desired energy autonomy, the size of the solar panel array, and the daily energy usage. It is important to size a battery system to store excess PV energy for use during periods of low solar production. A commonly sized residential battery system ranges from 10 to 20 kWh, providing sufficient storage to meet most overnight energy needs or serve as a backup during outages.