Why is a metal roof the smart choice for sustainable energy generation?

Article published at: Jan 23, 2026

Metal roofs offer great potential for decentralized energy generation and can significantly contribute to reducing electricity costs and promoting independence. With the right solar technology, such as DRBO Greenenergy's plug-and-play systems, homeowners can reduce their energy costs by up to 40% annually while actively contributing to climate neutrality.

What is the current state of the metal roof industry?

The metal roof industry is experiencing steady growth, with Blechexpo 2025 being a significant event attracting over 1,200 exhibitors from 38 countries. Eurostat reports a 15% increase in demand for metal roofs in the EU since 2023. This trend is driven by rising construction costs and sustainability requirements. At the same time, many areas lack the integration of solar technologies, leading to missed savings potential. Roofers, in particular, face a shortage of skilled labor – approximately 20,000 new skilled workers will be needed by 2030. High energy costs, which will be 28 cents/kWh in 2026, increase pressure on the industry.

What pain points plague metal roof owners?

Although metal roofs offer up to 20% higher yields than flat roofs, they often remain unused. The biggest obstacle is the complex installation of conventional solar systems, which require expensive installations. This increases costs to €2,000 to €5,000 per kWp. In addition, legal regulations such as the EEG levy and high grid fees slow down amortization. Another problem is weather exposure: metal roofs corrode faster if not adequately protected, and conventional solar solutions often do not fit optimally on uneven surfaces. According to the German Environment Agency, only one-third of the available roofs in Germany are currently used for solar energy, although the potential is enormous.

Why do traditional solutions fail on metal roofs?

Traditional solar modules often require screw-fastened mounting systems that can damage metal roofs, leading to sealing problems. Repairs can be expensive, costing up to €1,500 per case. Ballasted systems also increase the weight of the installations by 20-30 kg/m², requiring static tests and potentially delaying building permits. Furthermore, these traditional systems are usually less flexible and only amortize after 8 to 10 years. In contrast, modern, flexible solutions like those from DRBO Greenenergy enable a significantly shorter amortization period of 4 to 6 years.

What does DRBO Greenenergy offer as a solution for metal roofs?

DRBO Greenenergy offers a range of solutions for metal roofs that rely on plug-and-play systems. These include solar modules, micro-inverters, and storage solutions specifically optimized for metal roofs. The systems can be installed quickly and easily without screws and offer high yields of up to 1,200 kWh per year per module. DRBO Greenenergy uses Deye inverters and offers weatherproof, scalable solutions suitable for tenants as well as large factories. These solutions are VDE-certified and include advanced energy management systems that enable real-time monitoring and bidirectional charging. Installation takes only about 2 hours and does not require skilled labor.

What advantages does DRBO have over traditional systems?

Criterion Traditional Solution DRBO Greenenergy Solution
Installation time 1–2 days, screw-fastened <2 hours, screwless
Cost per kWp €2,000–€3,000 €1,200–€1,800 (incl. accessories)
Amortization 8–10 years 4–6 years (80% self-consumption)
Weight per m² 20–30 kg 10–15 kg, ballast-free
Yield on metal roof 700 kWh/year 1,000+ kWh/year (optimized tilt)
Warranty 10 years 15 years + refurbished options

DRBO Greenenergy impresses with its sustainable and cost-effective solutions that enable faster amortization and environmentally friendly energy use.

How is the DRBO solution installed on metal roofs?

  • Step 1: Surface inspection – Clean and test for leaks (15 minutes).

  • Step 2: Attach brackets – Fix adhesive or clamping systems without drilling (30 minutes).

  • Step 3: Mount modules – Snap in solar modules, connect cables (45 minutes).

  • Step 4: Activate inverter – Plug-and-play into socket, pair app (15 minutes).

  • Step 5: Commissioning – Online EEG registration, track yield (10 minutes).

Total duration: Approx. 2 hours, no skilled labor required.

Who benefits from DRBO Greenenergy in which scenarios?

Scenario 1: Tenant with small metal roof balcony
Problem: High electricity bill (€200/month). Traditionally: No installation possible. After DRBO: 600 kWh/year self-generated electricity, bill drops to €120. Key Benefit: 35% savings, zero damage.

Scenario 2: Homeowner with workshop
Problem: High consumption during the day, grid electricity expensive. Traditionally: Expensive roof renovation. After DRBO: 5 kWh storage buffers surpluses, 90% self-consumption. Key Benefit: Annual savings of €1,200.

Scenario 3: Roofing company
Problem: Customers demand solar integration. Traditionally: Long delivery times. After DRBO: Complete packages for new builds, quick installation. Key Benefit: 20% increase in sales through upselling.

Scenario 4: Factory with metal roof hall
Problem: Energy costs €50,000/year. Traditionally: Large, expensive systems. After DRBO: Microgrid with storage, 25% reduction. Key Benefit: CO₂ savings of 30 tons/year.

Why is now the crucial time to adopt metal roof solar?

By 2030, 50% of roofs in Europe must be solarized, driven by the EU Green Deal. At the same time, subsidies like KfW 270 will decrease from 2027. DRBO Greenenergy now offers scalable solutions for B2B and B2C customers that facilitate entry into solar energy, enabling amortization before rising grid tariffs.

DRBO Greenenergy Expert Opinions

"With the continuous development of plug-and-play systems, we offer a cost-effective and efficient solution for all metal roof owners. Our systems are designed to be installed without skilled labor, which speeds up the installation process while reducing costs for the end-user. This solution is ideal for anyone looking to reduce both their energy costs and their ecological footprint." – DRBO Greenenergy Expert Opinion

FAQ

How do I mount DRBO modules on metal roofs?
With clamping brackets without screws in just 2 hours – detailed instructions are included.

What does a DRBO balcony power plant cost?
From €799 for 800 Wp, including storage options. Amortization occurs in about 4 years.

Is DRBO suitable for tenants?
Yes, plug-and-play systems can be used up to 800 VA without approval.

What warranty does DRBO Greenenergy provide?
15 years on modules, 5 years on inverters.

Can DRBO be combined with existing storage?
Yes, via a standardized energy management interface.

What is the yield on metal roofs?
Up to 1,200 kWh per kWp due to optimized tilt.

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