# Over Easy Solar Switzerland

> Vertical bifacial photovoltaic mounting systems for flat roofs, green roofs and gravel roofs — fully ballast-free, prefabricated for fast installation, no roof penetration, lightweight at 12 kg/m².

Over Easy Solar designs and manufactures vertical PV mounting systems built around bifacial modules that capture sunlight on both sides. The system is fully **ballast-free** (no concrete blocks, no welded rails) and ships **prefabricated**, so installation on existing flat, green and gravel roofs is fast and gentle on the building structure and roof membrane.

The Swiss site serves building owners, planners, architects and local installation partners with technical information, project references and subsidy guidance in German, French and Italian.

## Pages

- [Homepage](/): Overview of vertical PV for Swiss flat, green and gravel roofs. Explains the ballast-free, prefabricated mounting concept, key advantages over conventional tilted systems (lower weight, no roof penetration, snow-free operation, morning/evening yield aligned with grid peak prices), product range, target roof types, and how to get in touch with a local installation partner.
- [Photovoltaik Flachdach](/photovoltaik-flachdach): Vertical PV for flat roofs. Covers why the system suits existing buildings with limited load reserves (12 kg/m², no ballast, no roof penetration), wind load behaviour, fire safety with open construction and glass-glass modules, compatibility with bitumen and PVC membranes, and reference projects including the Hinwil shopping mall (155.6 kWp, 2026, Planeco GmbH).
- [Photovoltaik Gründach](/photovoltaik-gruendach): PV mounting system for green roofs. Explains how vertical, ballast-free rows preserve the substrate and vegetation, support biodiversity, avoid shading and overheating of plants, and combine with extensive green roof build-ups. Includes a slideshow of the Oldenzaal Sempergreen reference and guidance for green roof planners.
- [Vertikale Photovoltaik](/vertikale-photovoltaik): Deep dive into vertical bifacial PV. Compares vertical orientation against tilted systems on yield curves (morning/evening peak alignment with Profilwerte), winter performance without snow cover, albedo gains on bright/cool roofs, the Swiss Neigungswinkelbonus subsidy (CHF 200/kW for tilt ≥75°), and technical specifications of the mounting system.

## Optional

- [French homepage](/fr): Full French version of the site (Photovoltaïque toit plat, toit végétalisé, photovoltaïque vertical).
- [Italian homepage](/it): Full Italian version of the site (Fotovoltaico tetto piano, tetto verde, fotovoltaico verticale).