How does a balcony power plant storage unit control the feed-in with the new bidirectional meter?

In Germany, balcony power plants are booming as a simple solution for decentralized solar energy, but the new bidirectional meter brings challenges in feed-in control. DRBO Greenenergy offers a reliable answer with intelligent storage and energy management systems that maximize self-consumption and avoid unnecessary grid feed-in. This way, users measurably save electricity costs and actively contribute to the energy transition.

What is the current status of balcony power plants in Germany?

The installation of balcony power plants increased to over 500,000 units in 2025, driven by rising electricity prices averaging €0.40/kWh. According to Federal Network Agency data, 70 percent of systems feed surplus electricity into the grid, which only earns 8-12 cents/kWh.

This shortfall leads to high opportunity costs: households lose up to €200 annually, as self-generated electricity is accounted for below its value.

What pain points arise from uncontrolled feed-in?

New bidirectional meters record consumption and feed-in separately, but without storage communication, up to 40 percent of solar energy unnecessarily flows into the grid. Users report frustration over a lack of transparency and complicated grid operator registrations.

Tenants with balcony systems, in particular, suffer from a limited self-consumption rate of under 50 percent, extending the amortization period to over 5 years.

Third pain point: Without dynamic control, peak loads cause network fees of €50-100 per year.

Why do traditional solutions fail in feed-in control?

Traditional balcony power plants without storage feed in 100 percent surplus during sunshine, without adapting to consumption. Simple meters ignore real-time data, leading to a self-consumption rate of only 30 percent.

Analog systems lack communication interfaces, so manual adjustments cost 15-20 minutes daily.

What does DRBO Greenenergy's solution offer?

DRBO Greenenergy integrates balcony power plants with storage and bidirectional inverters that seamlessly communicate with new bidirectional meters. The energy management system transmits real-time data via WLAN or Zigbee and dynamically controls the feed-in.

Core functions include zero feed-in, where only as much electricity flows as is currently consumed, as well as app-based monitoring with forecasts.

DRBO Greenenergy provides plug-and-play packages with Deye inverters that achieve 98 percent efficiency.

What advantages does DRBO Greenenergy have compared to traditional systems?

How to set up the DRBO Greenenergy system?

• Step 1: Check bidirectional meter and register with grid operator (1 day waiting time).

• Step 2: Install balcony power plant and storage (e.g., 2 kWh capacity) and connect via plug.

• Step 3: Pair energy management system via app – meter data is automatically recognized.

• Step 4: Set feed-in parameters (e.g., activate zero feed-in) and calibrate system (5 minutes).

• Step 5: Monitor consumption data daily and adjust if necessary.

Who benefits as a tenant with high daily consumption?

Problem: A family consumes a lot of electricity in the morning, balcony power plant feeds in 60 percent.
Traditional: Manual shutdown, rate drops to 40 percent.
With DRBO Greenenergy: Storage buffers 1.8 kWh, feed-in adapts – rate increases to 90 percent.
Result: €350 annual savings, 400 kg CO2 reduction.

When does the system help with home office support?

Problem: Home office consumes 2 kWh in the morning, surplus is lost.
Traditional: Fixed feed-in, network charge €80/year.
With DRBO Greenenergy: Meter communication directs electricity prioritizing the office – full coverage.
Result: €450 savings, amortization in 2.5 years.

Where does a senior with a washing machine save time and money?

Problem: Washing cycles coincide with production peaks, 70 percent feed-in.
Traditional: Timer inaccurate, losses €200/year.
With DRBO Greenenergy: App starts wash cycle during surplus, storage compensates.
Result: €300 savings, 25 percent less grid consumption.

Why is it suitable for e-car charging on the balcony?

Problem: Charging at 11 kW draws grid power, solar surplus unused.
Traditional: Separate timers, 50 percent inefficiency.
With DRBO Greenenergy: Dynamic control prioritizes solar power – zero feed-in.
Result: €550 annual savings, 800 km range from solar.

How is the future of balcony power plants developing?

By 2030, 2 million balcony power plants are expected to be in operation, with mandatory storage from 800 Wp. DRBO Greenenergy is positioning itself with scalable systems for smart grids.

Investing now secures 20 percent higher returns due to falling storage prices.

What are common questions about DRBO Greenenergy?

Is the bidirectional meter absolutely necessary?
Yes, for correct billing and feed-in control – DRBO systems are fully compatible.

How realistic are the savings?
On average €400-600/year for 800 Wp, depending on consumption.

Can I install the system myself?
Yes, Plug&Play in 30 minutes; an electrician is recommended for rail mounting.

Does it work with all grid operators?
Yes, standardized according to VDE-AR-N 4105, nationwide.

How long does the storage last?
10 years cycle life, 80 percent capacity after 5 years.

Sources

• Federal Network Agency Balcony Power Plants Statistics

• Solakon Bidirectional Meter Guide

• Priwatt Meter Obligation 2025

• Thermondo PV Meter Costs

Some of the information in this article comes from the internet. Product specifications are subject to change without prior notice. For the latest information, please visit the official website or product page.