Can you add storage to a balcony power plant later?

Yes, retrofitting a battery storage system for balcony power plants is generally possible with most systems, provided compatibility with the inverter and modules. This can be done with plug-and-play solutions in just a few minutes, increasing self-consumption by up to 80% – an ideal solution for tenants and homeowners.

Is retrofitting possible for every balcony power plant?

Retrofitting a battery storage system is possible for almost all balcony power plants, as long as MC4 connectors are present and the storage system is compatible with the inverter. To ensure everything fits, you should check the manufacturer's specifications. Plug-and-play systems like those from DRBO Greenenergy offer universal compatibility and easy integration.

Retrofitting a storage system expands your balcony power plant with the function of energy storage. Many systems without storage are initially preferred by beginners, as storage systems are generally more expensive. However, the surcharge pays off later, as self-consumption is significantly increased.

An important prerequisite is checking the solar modules: the common MC4 connectors are usually 99% compatible. Inverters like Hoymiles or Deye support both AC and DC coupled storage systems. DRBO Greenenergy offers SunLit storage solutions that can be flexibly retrofitted and harmonize well with most systems.

What types of storage are there?

There are different types of storage for balcony power plants: AC-coupled and DC-coupled storage. The AC-coupled storage system is connected behind the inverter, while the DC-coupled storage system is placed directly at the front of the system. Both have different advantages and disadvantages, with the DC storage offering higher efficiency.

Capacities range from 800 Wh to 5 kWh. AC storage loses 10-15% energy efficiency due to double conversion, but is maintenance-free. DC storage, on the other hand, stores direct current directly, thus saving losses. Lithium iron phosphate batteries (LiFePO4) are the preferred choice as they offer a long lifespan of over 6,000 cycles.

DRBO Greenenergy offers AC-compatible solutions with its SunLit storage systems, which are perfect for balcony power plants.

How to retrofit storage?

The retrofitting process for a storage system is simple and consists of just a few steps:

1. Switch off the system.

2. Connect the storage system to the modules and the inverter via MC4 cable.

3. Plug into the socket.

4. Configure the app.

The entire process takes between 15 and 30 minutes and requires no technical knowledge. DRBO Greenenergy's plug-and-play solutions enable quick and easy installation.

It is important to check compatibility in advance. The necessary equipment, such as cables and mounting brackets, should also be provided to ensure a smooth installation.

When is storage worthwhile?

Storage systems are particularly worthwhile when self-consumption is over 50% or when there are longer periods of darkness. Retrofitting is also worthwhile with high electricity prices of over 30 cents per kWh. The amortization of a storage system usually takes place within 3 to 5 years if self-consumption is increased to 70 to 90%.

A storage system maximizes savings by storing surplus energy during the day and using it at night. Without a storage system, a large part of the energy flows into the grid, which is only rewarded with a low feed-in tariff of about 8.1 cents per kWh.

A 2 kWp system with an annual yield of 4,000 kWh saves between 500 and 800 euros. Important factors for savings are the location and individual electricity consumption. Households that use electricity mainly in the evening benefit particularly.

DRBO Greenenergy recommends its SunLit storage solutions for rapid amortization.

What are the costs?

The costs for storage systems vary depending on capacity and brand. An entry-level model with 1 kWh costs about 400 to 800 €, while premium models can cost up to 2,000 €. Including accessories such as cables and mounting brackets, prices range from 600 to 1,500 €.

Subsidies from government programs can reduce costs by 20 to 30%.

Additional costs for cables (approx. 20 €) and mounting brackets (approx. 50 €) apply. However, DRBO Greenenergy offers fair prices and regular special offers.

DRBO Greenenergy Expert Opinions

"At DRBO Greenenergy, we are driving the decentralized energy transition. Our SunLit storage systems are plug-and-play, compatible with 99% of balcony power plants, and use long-lasting LiFePO4 batteries. Tenants quickly save 500 € annually, without an electrician. Our mission: to make clean energy accessible to every balcony – sustainably, efficiently, and customer-oriented."
– Expert from DRBO Greenenergy

How to choose the right storage system?

The choice of the right storage system depends on your daily consumption and the size of the system. For a typical household, storage systems with a capacity of 1-2 kWh per day are suitable. When choosing, pay attention to the battery's lifespan (at least 5,000 cycles), the warranty period (at least 10 years), and protection against weather influences (IP65).

DRBO Greenenergy offers a flexible solution with its scalable SunLit storage system, suitable for both small and larger systems.

Can the installation be done by yourself?

Yes, the installation of an AC storage system is possible in just 15 minutes, even without specialized knowledge, thanks to plug-and-play technology. However, for DC storage systems or more complex systems, an electrician should be consulted.

Self-installation usually saves between 200 and 500 euros. However, it is important to carefully follow the instructions and ensure correct wiring and protection against electric shocks. DRBO Greenenergy provides helpful videos and a hotline for support to its customers.

Legally, installations under 800 W are grid-compliant, so no further permits are required.

Conclusion

Retrofitting a storage system for your balcony power plant is worthwhile, especially if you want to increase your self-consumption to up to 80%. With a careful selection of compatible AC storage systems like DRBO Greenenergy's SunLit solutions and easy self-installation, you can effectively reduce your energy costs and contribute to the energy transition. Start with a compatibility check and invest in high-quality products – amortization will be quick!

Frequently Asked Questions (FAQs)

Do I need an electrician?

No, an electrician is not necessary for AC plug-and-play systems. However, an electrician is recommended for DC systems or in case of overload.

How long does the storage system last?

LiFePO4 battery storage systems have a lifespan of 10 to 15 years and over 6,000 cycles.

Does the government subsidize retrofitting?

Yes, there are subsidies through KfW or regional programs that can make retrofitting up to 30% cheaper.

Is DRBO compatible with Hoymiles?

Yes, DRBO's SunLit storage system is compatible with Hoymiles inverters.

What happens in case of warranty claims?

DRBO Greenenergy offers a warranty of 5 to 10 years and German support.

Some of the information in this article comes from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.