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Properly Planning a PV System: Step by Step Careful planning is the cornerstone of any successful photovoltaic installation. From the initial roof measurement to the final cable routing, numerous d...

PV System on "Frankfurter Pfanne" Tiles: Planning Cable Routing Correctly The "Frankfurter Pfanne" (Frankfurt Tile) is one of the most commonly installed roof tiles in Germany. Accordingly, solar i...

Clay Roof Tiles and Roof Bushings: What Matters Most Clay roof tiles are among the most popular roofing materials in Germany. Their natural surface structure, thermal expansion, and glazed or engob...

Protecting Solar Cables from Marten Bites — Here's How Martens are an underestimated threat to photovoltaic systems. These nocturnal animals effortlessly climb onto roofs and bite into solar cables...

EEG 2026: What's changing for photovoltaic installers? The Renewable Energy Sources Act (EEG) will be adjusted again in 2026. For PV installers and specialist companies, this means new framework co...

Two products keep reappearing when it comes to PV roof penetrations: NEXCAPE and Klöber Venduct Solar. But which solution offers the better value for money? Price Comparison: Factor 3 to 10 NEXCAPE...

Solar roof penetrations compared: Tile, flat & metal roofs. Which PV cable penetration fits? Practical knowledge for solar installers. Find the right PV cable roof penetrations for mechanical a...

Every PV system on a tiled roof has a critical weak point: the spot where the solar cables are routed from the roof into the building's interior. Why Roof Penetration is So Crucial The DC cables of...

Why the correct number is crucial Too few penetrations force multiple cables into a single opening — increasing the risk of insulation damage and making a clean seal impossible. Proper planning sav...