--- title: Smart PV Mounting for Flat Roofs - PowerEdge AG description: Boost PV installation speed by up to 70% with PowerEdge Solar. Lightweight, ballast-free flat roof mounting system. Easy, safe, and efficient. image: https://poweredge.energy/hubfs/emotional_CGF3548.jpg --- [Skip to the main content.](https://poweredge.energy/solar#main-content) [![PowerEdge Color logo](https://poweredge.energy/hubfs/PowerEdge%20Color%20logo.svg "PowerEdge Color logo")](https://poweredge.energy/) [![PowerEdge Color logo](https://poweredge.energy/hubfs/PowerEdge%20Color%20logo.svg "PowerEdge Color logo")](https://poweredge.energy/) - [Battery Storage](https://poweredge.energy/en/battery-storage) - [PV Mounting](https://poweredge.energy/solar) - [BESS Projects for Investors](https://poweredge.energy/energy-storage-for-investors) - [About us](https://poweredge.energy/en/about-us) - [Team](https://poweredge.energy/en/about-us) - [Blog](https://poweredge.energy/blog) - [English](https://poweredge.energy/solar) - [Deutsch](https://poweredge.energy/de/solar) Search [Ask for an offer](https://share-eu1.hsforms.com/1TDQlFScoTWao6zbwSk5XFA2dle64) Toggle Menu - [English](https://poweredge.energy/solar) - [Deutsch](https://poweredge.energy/de/solar) Search Toggle Menu [Ask for an offer](https://share-eu1.hsforms.com/1TDQlFScoTWao6zbwSk5XFA2dle64) - [Battery Storage](https://poweredge.energy/en/battery-storage) - [PV Mounting](https://poweredge.energy/solar) - [BESS Projects for Investors](https://poweredge.energy/energy-storage-for-investors) - [About us](https://poweredge.energy/en/about-us) - [Team](https://poweredge.energy/en/about-us) - [Blog](https://poweredge.energy/blog) [Facebook](https://poweredge.energy/solar#0) [Instagram](https://poweredge.energy/solar#0) [Linkedin](https://poweredge.energy/solar#0) [X](https://poweredge.energy/solar#0) [YouTube](https://poweredge.energy/solar#0) [Medium](https://poweredge.energy/solar#0) # **Smart Mounting System for Flat Roofs** **The PowerEdge Solar System is an innovative substructure for the professional and secure installation of photovoltaic systems on flat roofs.**   [Download Product Sheet](https://app-eu1.hubspotdocuments.com/documents/143765500/view/1062182305?accessId=f92948) [Enquire now](https://share-eu1.hsforms.com/1CONiOOwlTIiSys5E0NTCBA2dle64) ![Flat Roof Solar Installation](https://poweredge.energy/hs-fs/hubfs/_CGF3548.jpg?width=2000&name=_CGF3548.jpg) ### **PowerEdge Solar - One System – Fits All Roof Types, Without Extra Costs.** ##### **Substrate** With or without vegetation protection **Option:** Thin metal trays in the maintenance lanes to prevent overgrowth Very cost-effective solution if no elevated mounting is required ##### **Green roof** Same product + elevation tanks 46 cm to the lower edge of the module Percentage-wise still much faster than other elevated mounting systems ##### **Common Roof Types** **Gravel, bitumen, membrane, concrete** Just place the tanks on top No extra costs for gravel, etc. No extra ground work needed ### **PV Mounting & Ballasting on Flat Roofs** #### **Easy Handling** ##### Low empty weight, approx. 7 kg #### **Fast Installation** ##### 70% less time required   #### **Reduced Roof Load** ##### 50% less ballast needed   ![PowerEdge Solar](https://poweredge.energy/hubfs/PowerEdge%20Solar.png) [Enquire now](https://share-eu1.hsforms.com/1CONiOOwlTIiSys5E0NTCBA2dle64) #### **Your PowerEdge Contact Person** Linus Richter | Sales Manager [linus.richter@poweredge.energy](mailto:linus.richter@poweredge.energy) +41 782 62 3505 ## Flat Roof Solar Installations - References   Watch the **product video** and see how fast and easy the installation is. Listen to a **solar installer’s testimonia**l on how the product **cut his installation time in half** and what his overall experience with PowerEdge Solar has been.   ##### PowerEdge Solar - **Product Video** ##### PowerEdge Solar - Solar **Installer Testimonial** ![151 kWp PV instalation, Hunzenschwil](https://poweredge.energy/hubfs/Bild%2017%20von%2013%20M%C3%A4rz%202025.jpeg) ###### 151 kWp PV installation, Hunzenschwil ![11 kWp solar installation Aargau](https://poweredge.energy/hubfs/Bild%2020%20von%2013%20M%C3%A4rz%202025.jpeg) ###### 11 kWp PV installation, Aargau ![14.2 kWp PV installation, Menzikon, Switzerland](https://poweredge.energy/hubfs/PowerEdge%20Solar%20Family%20home.png) ###### 14.2 kWp PV installation, Menzikon ![38 kWp PV School Winterthur](https://poweredge.energy/hubfs/WhatsApp%20Bild%202025-07-24%20um%2009.23.58_669c45c7.jpg) ###### 38 kWp PV installation on School, Winterthur ![45 KWP PV installation Schaffhausen](https://poweredge.energy/hubfs/Schaffhausen%2045%20KWP.png) ###### 45 KWP PV installation on a 6% **Pitched roof,** Schaffhausen ## Practical Benefits ##### Easy Handling Low net weight, approx. 4-7 kg. No ballast stones required. ##### **Cost-Effective** 70% faster installation. Plug-in connections, no screwing. Less transport required.   ##### **25-Year Warranty** UV- and frost-resistant. Self-regulating water level. ##### **Lower Roof Load** 50% lighter with reduced point load thanks to high contact surface and interlinked design. | Product Specifications | Values | | --- | --- | | **Permissible Roof Slope** | 0° - 6° | | **Module Orientation** | East / West | | **PV Module Width** | 1.129 - 1.136 mm | | **PV Module Height** | 29-30 mm | | **Tilt Angle** | 15° | | **Material** | Plastic (HDPE with UV protection) | | **Empty Weight** | Approx. 7 kg | | **Max. Total Weight** | Approx. 47 kg | | **Ballasting Medium** | Water | | **Temperature Resistance** | -30°C to +80°C | | **Manufactured According to Standard** | ISO 9001:2015 Quality Management System | | **Warranty** | 25 years (prerequisite: professional installation and documented system maintenance) | | **Application Area** | Flat roofs with: bitumen, membrane, green roofs, or gravel; balcony systems for terraces and garden installations |   ### **Frequently Asked Questions (FAQ)** - #### Can I use PowerEdge Solar on membrane roofs? **Yes, absolutely!** For membrane roofs, there are special aluminum-laminated protection mats that prevent the diffusion of plasticizers from the roofing material. - #### Can I place PowerEdge Solar on gravel? On a green roof? Yes, PowerEdge Solar can be placed directly on gravel. This saves the cost of gravel cleaning and new roof fleece. Even if the gravel is greened, that’s not a problem. We now also offer an overgrowth protection option for our tanks. This solution is significantly more cost-effective than conventional elevated substructures. - #### What is the tilt angle of the east-west modules? Are there tanks with other tilt angles available? **The tilt angle is 15°. Other angles will only be offered if there is sufficient demand.** However, 15° is a well-balanced choice: it offers high energy yield with minimal shading, and dirt, rain, and snow are less likely to accumulate. With a 10° tilt, you can gain approximately 0.8% more energy output using the same number of modules, but you’ll also need about 2% more space. - #### How much space is there between the modules? Can I walk between them? When the adapters are connected, the distance between modules is 60 mm, which is too narrow to walk through. That’s why it is recommended to regularly insert spacer elements between rows, increasing the distance to 145 mm — sufficient for walking between the modules for maintenance and cleaning purposes. - #### Which PV module size fits on the PowerEdge Solar water tanks? With the standard adapter, standard modules with a height of 1129 – 1136 mm and a module thickness of 29 – 31 mm fit on the PowerEdge Solar water tanks. The width is not critical for compatibility, but it must be known for layout and ballast calculations. For modules with different heights, suitable adapters can be ordered. Please contact your advisor in advance to coordinate this. - #### How long is the warranty on the PowerEdge Solar modules? Does the substructure last as long as the PV modules? **A 20-year warranty is provided, under the usual conditions of professional installation and documented system maintenance.** PV modules typically come with a material warranty of 20–30 years. The expected lifespan of the PowerEdge Solar substructure, however, is significantly longer than that of the PV modules — and the system can be reused after module replacement. - #### Are the water tanks protected against frost? Yes, the tanks have been thoroughly tested at temperatures ranging from **–30 to +80 degrees Celsius** and **have passed the PV1200 climate test.** The tanks feature grooves that absorb expansion and are UV-stable. No antifreeze is required. - #### Does the water eventually evaporate or leak out? Evaporation is minimal, and the tank is designed with a funnel and channel system that refills it with rainwater up to the pre-drilled fill level. Any excess water is automatically drained off, maintaining the optimal water level. - #### What snow load can the system withstand? **The maximum certified load per tank is 1,200 kg.** This means that a system with standard modules can withstand up to **3,000 N/m²**. For alpine installations where higher snow loads are required, the maximum snow load can be increased to **6,000 N/m²** by adding an extra tank in the middle. **Please ensure that the PV modules themselves are rated for this load as well!** - #### What wind load can the system withstand? The PowerEdge Solar system has a closed side design, making it less sensitive to wind than many other substructures. It has been wind tunnel tested in accordance with **EN 1991-1-4**. For ballast calculations, this standard was supplemented with national annexes — in Switzerland, specifically **SIA 261**. The required ballast depends on several factors, including location, roof height, parapet height, friction coefficient, and the interconnection between modules. - #### How fast is the installation? **Installation time has been measured multiple times, showing a time saving of 50–70% compared to aluminum substructures.** With two people, it is possible to install **8 kWp of PV in just one hour**. - #### Are the tanks produced sustainably? **Yes, the tanks are certified according to ISO 9001:2015 and come with a 20-year warranty.** They are made from **100% recyclable HDPE plastic** and produced using **solar-generated energy**. Energy Storage Solutions Energy Storage Solutions - [Battery Storage Solutions](https://poweredge.energy/en/battery-storage) - [BESS for Investors](https://poweredge.energy/energy-storage-for-investors) - [Home & Residential BESS](https://poweredge.energy/home-battery) - [C&I BESS](https://poweredge.energy/en/commercial-battery) - [Utility Scale BESS](https://poweredge.energy/utility-battery) - [BESS for Farms](https://poweredge.energy/battery-storage-for-farms) - [BESS for Solar Installers](https://poweredge.energy/batteries-for-solar-installers) - [BESS for Project Developers](https://poweredge.energy/battery-for-developers) - [Battery Configurator](https://poweredgeconfigurator.lovable.app) PV mounting System PV mounting System - [PowerEdge Solar](https://poweredge.energy/solar) About Us About Us - [Team](https://poweredge.energy/en/about-us) - [Careers](https://poweredge.energy/careers) - [Contact us](https://poweredge.energy/contact-us) - [Blog](https://poweredge.energy/blog) [![PowerEdge Color logo-1](https://poweredge.energy/hubfs/PowerEdge%20Color%20logo-1.png)](https://poweredge.energy) - [Privacy Policy](https://poweredge.energy/privacy-policy) © 2026 PowerEdge [Linkedin](https://www.linkedin.com/company/poweredge-energy/)[YouTube](https://www.youtube.com/@PowerEdge-AG) PowerEdge AG, Baarerstrasse 55, CH-6300 Zug | UID: CHE-353.478.206 Return to top