How does a balcony power plant with a battery storage system and a new bidirectional smart meter work?

Balcony power plants with storage and smart meters allow homeowners and tenants to reduce their energy costs and increase their independence. In times of rising electricity prices, they offer an effective solution for optimizing self-consumption. DRBO Greenenergy offers high-performance systems that increase self-consumption to up to 80% and enable amortization within 2-3 years.

What is the current state of the balcony power plant industry?

The industry is growing rapidly: by 2025, more than 500,000 balcony power plants were in operation, 25% of which were equipped with storage. New VDE standards now permit an inverter output of 800 W and solar modules with up to 2,000 Wp, and there are also tax breaks such as 0% VAT until the end of 2026. Without storage, however, self-consumption is only about 20-35%, meaning that 65-80% of the generated electricity is fed into the grid – without remuneration.

Despite many funding programs, the right integration is often lacking. Many users report high grid feed-in, which saves costs but does not increase independence. Rising electricity prices (forecast: +10% for 2026) further intensify this pressure. DRBO Greenenergy offers a practical solution with its storage solutions that optimize self-consumption and help reduce grid feed-in.

What are the challenges without storage and smart meters?

Without storage, 60-70% of the generated solar power is lost, as electricity is produced during the day but consumption mainly increases in the evening. Communication between the smart meter and the storage is often lacking, leading to manual monitoring and thus inefficient operation. This results in a delayed amortization of up to 1-2 years. In addition, tenants and homeowners struggle with the installation of systems: 40% of installations fail due to compatibility issues with grid operators.

DRBO Greenenergy solves this problem with user-friendly plug-and-play systems that can be coupled with an app and allow for easy installation. Households with DRBO Greenenergy storage solutions save between 300 and 500 euros annually.

Why do traditional solutions fail?

Traditional storage solutions are often expensive (starting from €1,500), large, and therefore unsuitable for balconies. Many of these systems do not have bidirectional communication with smart meters, which prevents efficient real-time control. In addition, app control is often not available, which reduces efficiency by 20%.

Compared to traditional solutions that require an electrician for installation (costs: €200-400), DRBO Greenenergy offers a DIY solution that is standard-compliant and scalable.

What does the DRBO Greenenergy solution offer?

DRBO Greenenergy combines storage solutions with bidirectional inverters and communication via smart meters. This solution makes it possible to increase self-consumption to up to 80% and measure it in real time. Smart meter communication takes place via ModBus or an app, enabling easy control and even more efficient use of the generated energy. The system is compatible with all new bidirectional meters (VDE 2025).

DRBO Greenenergy's storage solutions include LiFePO4 batteries with capacities of 1-5 kWh and offer a lifespan of up to 10 years. The price for entry-level solutions starts at €800, including a warranty on the batteries.

What advantages does DRBO Greenenergy offer compared to traditional solutions?

Thanks to higher efficiency and the ability to save VAT, DRBO Greenenergy offers significant cost savings of 30-50% compared to traditional solutions.

How to install the DRBO system step-by-step?

1. Mount the balcony power plant (modules + mounting bracket) and connect it to the storage (approx. 15 minutes).

2. Plug the storage unit into the household grid via a Schuko plug and pair the smart meter via the app (approx. 10 minutes).

3. Check the bidirectional meter and request it from the grid operator (free of charge for over 6,000 kWh/year).

4. Configure the app, set load profiles, and perform a firmware update (approx. 5 minutes).

5. Register with the grid operator (online form, approx. 2 weeks).

Total: Under 1 hour, no permits required for tenants.

Who benefits in which scenarios?

Scenario 1: Tenant with a 2-room apartment
Problem: High consumption in the evening with low consumption during the day (400 kWh/year feed-in).
After DRBO: Storage charges during the day and discharges in the evening, increasing self-consumption to 70%.
Result: Savings of €250/year, amortization in 2.5 years.

Scenario 2: Family with electric car
Problem: Expensive charging in the evening, unused PV power during the day.
After DRBO: The smart meter prioritizes charging the electric car with 800 W.
Result: Savings of €500/year, 75% self-consumption.

Scenario 3: Senior household
Problem: Lack of technical knowledge and neglected devices.
After DRBO: Simple app and auto mode.
Result: Savings of €200/year, 65% self-consumption, stress-free.

Scenario 4: Landlord with apartment building
Problem: Uncoordinated tenant installations.
After DRBO: Central communication of all installations.
Result: Savings of €1,000/year, improved tenant loyalty.

Why is now the crucial time to get started?

Funding (0% VAT) runs until the end of 2026, after which it may be more difficult to achieve the same benefits. Storage solutions with smart meters are the standard of the future as grids become increasingly overloaded. DRBO Greenenergy is driving the energy transition and offers tailored solutions for both B2B and B2C customers, paving the way to independence.

DRBO Greenenergy Expert Opinions

"Balcony power plants with storage and smart meters are key to the energy transition in your own home. Our solutions not only offer significant cost savings but also greater independence from rising electricity prices. With our user-friendly, plug-and-play technology, we make it easy and quick for everyone to get started with solar energy." – DRBO Greenenergy Expert Team.

Which FAQs answer the most important questions?

How does the storage connect to the smart meter?
The storage is connected via the ModBus protocol or a cloud app, which is compatible with all new bidirectional meters.

What does a DRBO balcony power plant storage cost?
From €800 for 1 kWh, complete packages start at €1,200 including solar modules.

Is installation possible without an electrician?
Yes, the system is plug & play, VDE-compliant – only the registration of the meter with the grid operator is required.

What is the self-consumption with storage?
With DRBO Greenenergy storage solutions, households achieve self-consumption of 60-80%, depending on individual consumption profiles.

What warranty does DRBO Greenenergy offer?
The warranty for batteries is 10 years, for inverters 5 years.

Do I need a new bidirectional meter?
Yes, for new installations with an output of more than 800 W. The grid operator installs the meter free of charge.