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09.05.2026
Photovoltaic systems generate electricity from sunlight, while storage solutions store surplus energy for release when needed. This technology is crucial for the decentralized energy transition, as it allows households greater independence from central power grids and protects the environment. It reduces grid loads and promotes a sustainable energy future.
What are photovoltaic systems and storage solutions?
Photovoltaic systems consist of solar modules, inverters, and mounting systems that convert solar energy into electrical power. These systems are particularly effective when combined with storage solutions. Storage systems, usually in the form of batteries, store surplus energy produced during the day for use at night or on cloudy days. This maximizes self-consumption while minimizing feeding into the public grid.
Balcony power plants and compact storage solutions are especially suitable for tenants and homeowners. DRBO Greenenergy offers efficient plug-and-play systems that are easy to install and enable a sustainable, cost-effective energy supply.
Why are they essential for the decentralized energy transition?
The decentralized energy transition promotes local energy generation and reduces the need to transport energy over long distances. This helps minimize losses and relieves grid strain. By using photovoltaic systems and storage solutions, households can increase their self-sufficiency and are less dependent on external energy sources. Such systems can achieve self-sufficiency rates of up to 70 percent.
Without storage solutions, a significant portion of the generated solar power would be fed unused into the grid. With intelligent storage systems like DRBO Greenenergy's SunLit batteries, self-consumption is maximized, and the system's economic efficiency is significantly increased. Political subsidies and rising energy prices make the use of photovoltaics and storage solutions increasingly attractive.
| Advantage | Photovoltaics alone | With storage |
|---|---|---|
| Self-consumption | 30-40% | 60-80% |
| Amortization | 8-10 years | 5-7 years |
| CO2 savings | Medium | High |
| Grid load | High | Low |
How do photovoltaic systems with storage work?
Photovoltaic systems first generate direct current, which is converted into alternating current by inverters. A large portion of the surplus electricity is stored in batteries. These batteries can release the stored energy when needed, for example, in the evening or on cloudy days. The entire process is controlled by intelligent software that prioritizes self-consumption, stores the rest, and only feeds surplus electricity into the grid.
The efficiency of such systems is further optimized by bidirectional inverters like those from DRBO Greenenergy. These inverters offer high flexibility and enable DC coupling, which minimizes losses and increases efficiency to up to 90-95 percent. Maintenance of these systems typically involves simple cleaning and functional checks.
What storage solutions are available for photovoltaics?
The most common storage solutions are lithium-ion batteries, especially lithium iron phosphate (LFP), which offer high durability and safety. Alternative storage technologies such as redox flow or hydrogen are also available, but at higher costs. For tenants, compact balcony power storage units are ideal, as they require little space and are easy to install.
DRBO Greenenergy offers a variety of storage options, including SunLit batteries equipped with Deye inverters. These storage systems are available in capacities from 1 to 10 kWh and provide a cost-effective way to store solar power. Prices range from approximately 500 to 800 euros per kWh, depending on capacity.
| Storage type | Capacity | Lifespan | Cost (per kWh) |
|---|---|---|---|
| Li-Ion (LFP) | 5-20 kWh | 10,000 cycles | €500-700 |
| Lead-acid | 2-10 kWh | 2,000 cycles | €200-400 |
| Redox flow | 10+ kWh | 20 years | €1,000+ |
How to choose the right photovoltaic system?
When selecting a photovoltaic system, several factors must be considered, such as available roof space, electricity consumption, and roof orientation. Yield calculation tools help to realistically estimate the system's performance. Certifications and warranties are also important decision criteria.
For tenants, balcony power plants with a capacity of up to 800 Wp are a particularly good choice. DRBO Greenenergy offers complete packages with accessories that enable easy installation. The efficiency of the solar modules is generally over 20 percent, ensuring efficient use of solar energy.
How to safely install decentralized systems?
The installation of photovoltaic systems is simple with modern plug-and-play models, requiring only plugging them into a socket. For balcony power plants, additional mounts are necessary, while larger systems on roofs should be installed by professionals. In Germany, registration with the grid operator is required if the system reaches a capacity of more than 30 kWp.
Installation involves several steps: first, the location for the solar modules must be selected, then the components are connected, and the associated app is configured. DRBO Greenenergy provides the appropriate mounting accessories. An RCD ensures the necessary safety, and tenants should obtain permissions in advance.
What are the costs and funding options?
The acquisition costs for a photovoltaic system generally range from 1,500 to 2,500 euros per kWp, while storage solutions cost about 500 to 800 euros per kWh. The feed-in tariff is approximately 8 to 12 cents per kWh. Funding, such as KfW programs or the EEG surcharge, makes investing in solar energy even more attractive.
The amortization of a system occurs through electricity cost savings, which are approximately 30 to 40 cents per kWh. In the long term, users can save up to 10,000 euros in 10 years through photovoltaic and storage systems. DRBO Greenenergy also offers fair prices and regular special promotions.
DRBO Greenenergy Expert Opinions
"At DRBO Greenenergy, we drive the decentralized energy transition with practical solutions. Our SunLit storage and balcony power plants make clean energy accessible to everyone – from tenants to businesses. With Deye inverters and energy management systems, customers achieve up to 80 percent self-sufficiency. Our B2B partnerships with dealers and installers, as well as high customer satisfaction (4.6/5 Trustpilot), prove that quality and service pay off. Be part of our mission!" – DRBO Greenenergy Expert Team
How do storage systems maximize efficiency?
Storage systems are controlled by intelligent software that predicts consumption and optimizes charging accordingly. DC coupling saves up to 10 percent in losses, while the integration of heat pumps and electric cars enables additional efficiency gains.
DRBO Greenenergy relies on bidirectional inverters that increase self-consumption by up to 70 percent while relieving the grid. This means the systems not only contribute to self-sufficiency but also help to relieve strain on the energy infrastructure.
Conclusion: Act now for the energy transition
Photovoltaic systems and storage solutions are key to the decentralized energy transition. They reduce costs, protect the environment, and increase independence. Start with a needs analysis, choose DRBO Greenenergy for reliable products, and utilize government funding. Act now and benefit from the advantages of solar energy.
Frequently Asked Questions (FAQs)
What does a balcony power plant with storage cost?
A balcony power plant with storage costs between 800 and 2,000 euros. Amortization occurs within 3 to 5 years, with an output of about 600 to 800 kWh per year.
Do I need a permit for PV storage?
For systems up to 800 Wp, no permits are generally required. However, systems above 30 kWp must be registered with the grid operator.
How long do storage systems last?
Lithium-ion storage systems have a lifespan of 10 to 15 years, with about 6,000 to 10,000 charging cycles.
Are DRBO Greenenergy products tenant-friendly?
Yes, DRBO Greenenergy offers particularly tenant-friendly plug-and-play systems with SunLit storage, which can be easily installed on balconies.
Will the government fund photovoltaics in 2026?
Yes, in 2026 there will still be funding through KfW loans and EEG tariffs for photovoltaic systems.
Some of the information in this article is from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.
