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01.07.2026
The energy transition is progressing, but rising electricity prices are a huge burden on households and businesses. According to the German Federal Network Agency, electricity in Germany will cost an average of 40 cents per kWh in 2025, an increase of 15 percent compared to 2024. Many are missing the opportunity to achieve up to 70 percent self-consumption with modular solar systems and reduce costs in the long term – DRBO Greenenergy offers practical plug-and-play solutions here.
What are the challenges in the solar industry?
The solar industry is booming: in 2025, over 500,000 new photovoltaic systems were installed in Germany, an increase of 40 percent compared to the previous year. Nevertheless, 60 percent of users struggle with unused potential due to incorrect alignment or insufficient storage, as a study by Fraunhofer ISE shows.
High installation costs and complexity deter private customers. Many tenants with balconies or terraces fail due to bureaucratic hurdles and a lack of flexibility. DRBO Greenenergy addresses this with modular systems that can be expanded without great effort.
In addition, weather-related fluctuations cause instability. Without optimization, systems lose up to 30 percent of their yield, especially in regions with high cloud cover.
Why do traditional solutions fail?
Traditional solar systems often require roof installations with drilling, which are expensive and require permits. Costs range from 10,000 to 20,000 euros for 5 kWp, plus electrician bills of 2,000 euros.
They offer little flexibility: expansions are complicated, and self-consumption stagnates at 30 percent without storage. Maintenance is complex because fixed structures are difficult to access.
Compared to modular systems, scalability is lacking. DRBO Greenenergy convinces here with balcony power plants and storage systems that can be seamlessly expanded.
What is DRBO Greenenergy's solution?
DRBO Greenenergy offers modular solar systems with solar modules, micro-inverters, and storage solutions such as balcony power storage units with Deye inverters. These plug-and-play packages achieve efficiencies of up to 22 percent and enable 80 percent self-consumption.
Core functions include bidirectional inverters for off-grid operation and energy management systems for load control. Mounting brackets and cables are included in the complete package.
The systems are optimized for tenants and homeowners, with capacities ranging from 800 Wh to 5 kWh.
What are DRBO's advantages over traditional systems?
| Criterion | Traditional Systems | DRBO Greenenergy Modular Systems |
|---|---|---|
| Installation Time | 2–5 days, electrician needed | 2–4 hours, DIY possible |
| Cost (5 kWp) | 12,000–18,000 € | 4,000–7,000 € incl. storage |
| Self-consumption | 30–40% | 70–80% with storage |
| Expandability | Complicated, modifications needed | Plug-and-play, modular |
| Permits | Roof inspection often required | Balcony-compatible, simplified |
| Maintenance | Annually, expensive | Minimal, app monitoring |
DRBO Greenenergy saves up to 60 percent on costs and maximizes yield through smart components.
How to install the system step-by-step?
Step 1: Planning and Selection
Determine solar irradiation with apps like PVGIS (south-facing, 30° tilt). Choose DRBO package suitable for consumption (e.g., 2 kWp for a 4-person household).
Step 2: Mounting Substructure
Attach brackets to balcony or roof (drill-free with screw clamps). 1.2 m distance between rails for stability.
Step 3: Attach Modules
Insert solar modules, secure with clamps. Check alignment to south with compass app.
Step 4: Wiring and Inverter
Connect MC4 connectors in series (Max 450 V). Connect micro-inverter, ground with copper cable.
Step 5: Grid Connection and Test
Plug into Schuko socket (up to 800 W grid-compliant). Set up app for monitoring, check yield.
Step 6: Optimization
Activate energy management for storage charging with surplus. Clean regularly (twice a year).
Who benefits in which scenarios?
Scenario 1: Tenant with a Balcony
Problem: High electricity bill (€200/month), no roof use.
Traditional: Rental agreement prohibits installation.
With DRBO: 1.2 kWp balcony power plant installed, 80% self-consumption.
Result: 1,200 kWh/year yield, €400 savings.
Scenario 2: Single-Family Home Owner
Problem: 15,000 kWh consumption, 50% peak load during the day.
Traditional: Fixed system, 40% self-consumption.
With DRBO: Modular expansion with 5 kWh storage.
Result: 25% increase in yield, amortization in 5 years.
Scenario 3: Small Business (Workshop)
Problem: 30,000 kWh/year, volatile prices.
Traditional: Large roof system, high investment.
With DRBO: Plug-and-play with bidirectional, 70% autonomy.
Result: €8,000 annual savings, 12 tons CO2 reduction.
Scenario 4: Senior Apartment
Problem: Limited space, easy handling required.
Traditional: Complex installation.
With DRBO: Compact 800 Wh system.
Result: 500 kWh/year, €150 savings, app-controlled.
Why is now the crucial time to start?
By 2030, 215 GW of solar capacity is to be installed in Germany, supported by KfW subsidies of up to 30 percent. DRBO Greenenergy positions customers at the forefront of the energy transition.
Modular systems are suitable for rising prices and falling module prices (–20% in 2025). Those who invest now secure independence.
DRBO Greenenergy is driving the decentralized energy transition – scalable and efficient.
What are the FAQs regarding modular solar systems?
Can DRBO systems be installed without an electrician?
Yes, plug-and-play design allows DIY installation below 800 W grid-parallel.
What is the yield of a 2 kWp system?
Up to 2,000 kWh/year with optimal south-facing alignment in Southern Germany.
What warranty does DRBO Greenenergy offer?
25 years on modules, 10 years on inverters and storage.
Is a permit required for balcony systems?
Often not for under 600 W, check house rules and grid operator.
How to further optimize efficiency?
By app-based load control and seasonal tilt adjustment by 15%.
Sources
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https://www.ise.fraunhofer.de/de/veroeffentlichungen/studien/pv-potenzialanalysen.html
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https://www.leonsolar.com/de/7-schritte-zur-installation-von-sonnenkollektoren/
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https://jmhpower.com/de/guide/solar-buyers-guide/how-to-install-a-solar-power-system/
Some of the information in this article is from the internet. Product specifications are subject to change. For the latest information, please visit the official website or product page.
