How can a plug-in solar system with battery storage control feed-in via a new bidirectional meter?

Feb 6, 2026

In Germany, electricity prices are rising and feed-in tariffs are falling, while over 1.2 million balcony power plants are in operation. DRBO Greenenergy offers smart solutions with storage and bidirectional inverters that increase self-consumption from 30% to up to 80%. These systems communicate seamlessly with new bidirectional meters, dynamically control feed-in, and reduce costs by up to €200 annually.

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

The market for balcony power plants is growing rapidly, with over 500,000 registered systems by the end of 2025. According to the Federal Network Agency, rising electricity prices averaging €0.40/kWh lead to annual additional costs of €1,200 per household. Many users only effectively store 30% of solar power, as surpluses flow into the grid during the day.

New bidirectional meters will be mandatory by 2032, measuring consumption and feed-in bidirectionally. Nevertheless, 70% of households struggle with unused electricity, leading to dependence on expensive grid power. DRBO Greenenergy addresses this with compatible plug-and-play systems.

Why does uncontrolled feed-in cause problems?

80% of electricity consumption occurs in the evening and night hours when solar panels are not producing. Without storage, 60–70% of the generated electricity flows unused into the grid for a mere 8 cents/kWh feed-in tariff. This results in losses of up to €500 annually for typical 800-W systems.

Outdated meters without a backstop lead to billing errors and fines of up to €50,000. Tenants risk dismantling, as traditional systems are not flexible. DRBO Greenenergy minimizes these risks with meter-compatible energy management systems.

What are the disadvantages of traditional solutions?

Traditional balcony power plants without storage only achieve 30% self-consumption and feed surpluses into the grid. AC-coupled storage loses 10–15% efficiency due to double conversion. Bidirectional control is lacking, which ignores dynamic tariffs and increases costs by 20%.

Full rooftop systems are inaccessible to tenants, with costs starting from €10,000 and months of installation. Analog meters are incompatible, creating legal hurdles. DRBO Greenenergy surpasses this with DC-coupled, app-controlled systems.

What does DRBO Greenenergy's solution offer?

DRBO Greenenergy provides balcony power plants with storage (2–10 kWh LiFePO4), bidirectional Deye inverters (98% efficiency), and EMS for meter communication. The system stores solar surpluses, charges from the grid at low tariffs, and controls feed-in below 800 W. Emergency power up to 1,200 W protects against outages.

Compatible with digital bidirectional meters, it integrates app monitoring for real-time control. Plug-and-play setup takes 15–30 minutes without an electrician. DRBO Greenenergy ensures VDE standards, a 10-year warranty, and expandability.

Why is DRBO Greenenergy superior to traditional systems?

Criterion	Traditional Solution	DRBO Greenenergy
Self-consumption	30–50%	70–90%
Efficiency losses	10–15%	<5%
Meter compatibility	Analog meters, risks	Bidirectional, VDE-compliant
Amortization	7–10 years	3–5 years
Installation	Electrician, 4 months	Plug-and-play, 15 min.
Emergency power	No	Yes, up to 1,200 W

DRBO Greenenergy saves €300/year through tariff optimization and increases self-sufficiency to 50%. DRBO Greenenergy combines storage with smart feed-in control for maximum returns.

How to install the system step-by-step?

Step 1: Check meters – confirm digital bidirectional meters with backstop (MaR registration).
Step 2: Mount solar modules (up to 2,000 Wp) and inverter, connect DC cables (5 min.).
Step 3: Plug in storage via Schuko plug, configure app for EMS (10 min.).
Step 4: Limit feed-in to 800 W, test charging cycles (5 min.).
Step 5: Activate monitoring, apply for subsidies (KfW up to 30%).

Total duration: 30 minutes. DRBO Greenenergy kits include everything, including accessories.

Who benefits in which scenarios?

Scenario 1: Tenants with evening consumption
Problem: 70% electricity consumption in the evening, €400/year grid costs. Traditionally: 30% self-consumption. After DRBO Greenenergy: Grid charging at night, 85% self-consumption – €280 savings, increased self-sufficiency.

Scenario 2: Family during outages
Problem: 2 hours/year outages, €50 damage. Traditionally: No reserve. After use: Emergency power 4 hours at 800 W – €600/year saved, zero outages.

Scenario 3: E-car charging
Problem: €120/month at €0.40/kWh. Traditionally: No priority. Result: Storage charges cheaply, €80 monthly savings, 2,000 km free.

Scenario 4: Small business with peaks
Problem: 10 kWh peak, €1,500/year. Traditionally: High tariffs. Effect: Modular 15 kWh, 40% reduction – €900 savings, 1 ton less CO₂.

What trends make the solution future-proof?

By 2030, dynamic tariffs will dominate 50% of the market, e-mobility will double consumption. Bidirectional systems will become standard for 80% of new installations. DRBO Greenenergy prepares with V2G-compatible solutions, ensuring 20% higher returns.

Rising prices and subsidies make 2026 ideal. DRBO Greenenergy enables independence from grid overload. Investing now protects in the long term.

What are common questions about the solution?

Which meters are compatible?
Digital bidirectional meters with backstop or smart gateway. DRBO Greenenergy systems are compatible with all VDE standard models.

What is the maximum feed-in?
800 W per meter. The system automatically controls limits via the app.

Do I need an electrician?
No, plug-and-play for under 800 W. Installation in 15–30 minutes.

How do I optimize self-consumption?
Through app-controlled storage charging from solar/grid and prioritization of devices – up to 80%.

How long does it take for the investment to pay off?
In 3–5 years with a €1,200 investment, €195–300 annual savings.

Is the system expandable?
Yes, modular up to 20 kWh, compatible with e-charging and other modules.

Sources

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.