Frequently Asked Questions

According to DIBt regulations, PV modules are not classified as construction products (CP) unless they replace the roof or have specific fire resistance or structural functions. However, individual German states, such as Baden-Württemberg (B-W), may impose additional requirements.

·         As per TÜV Nord and DIBt, the following PV modules do not require additional approval:

·         Glass-covered PV modules ≤ 2.0 m² installed on roofs with a tilt angle ≤ 75°.

·         PV modules without glass covers in roof areas.

·         Glass-covered PV modules ≤ 2.0 m² in freestanding, restricted-access installations.

These modules are not classified as CP and do not require further approval.

The Over Easy Solar VPV unit meets international standards and holds the following certifications:

·         IEC / EN 61215-1:2016

·         IEC 61215-2:2016 / EN 61215-2:2017

·         IEC 61730-1:2016 / EN IEC 61730-1:2018

·         UL 61730-1:2022

·         IEC 61730-2:2016 / EN IEC 61730-2:2018

·         UL 61730-2:2022

·         IEC 62790:2020 / UL 3730:2014

·         CE certification

·         Wind load calculations: EN 1991-1-4, ASCE 7-22, NBCC 2020

In conclusion, Over Easy Solar units are fully certified and comply with key international safety and performance standards.

Our system has been tested to meet EN 1991-1-4 Wind Actions standards, in partnership with the I.F.I. Institute for Industrial Aerodynamics, ensuring wind resistance up to 47 m/s.

Yes, our High Mount system is specifically designed to perform optimally on both green roofs and snowy roofs, ensuring ideal energy production in these diverse conditions. For example, in our specialized winter project in Trondheim, we focused on ensuring optimal winter performance and efficient snow clearance, addressing these unique challenges with a tailored solution.

Our panels are designed for flat roofs with a maximum tilt of 10 degrees. If your roof has a tilt greater than 10 degrees, a special solution could be applicable. Contact our team at info@overeasy.no for more information.

Over Easy Solar’s VPV units are distributed through our trusted partners. You can find an overview of our partners here.

If you are a private or commercial building owner and there is no partner in your region yet, don’t worry—we’d be happy to help you find one. Simply get in touch with our team via Request Offer.

Interested in becoming a partner? We are continuously expanding our network and are looking for partners who share our vision. Read more about becoming a partner here.

PV Sol and similar systems are not optimized for vertical solutions, so we’ve developed our own planning tool. However, if you’re using PV Sol or similar, our team can provide you with a PAN file to assist in your planning.

Over Easy Solar offers the VPV Planner, our custom planning tool designed to simplify the planning of vertical systems. It enables our partners to quickly assess a project’s potential in the initial stages, providing a plan in just 5 minutes.

Bifacial means that the panels generate power from both sides of the glass. Our panels are optimized for east-west installations, where their industry-leading bifaciality of 96% maximizes energy production during peak demand hours.

We typically recommend against using optimizers, as our specially developed and patented bypass diode is integrated into each panel to ensure optimal performance, even in shaded conditions. However, if required, our system is also compatible with optimizers.

We offer a 15-year product warranty and a 25-year performance warranty, so you can trust in long-term reliability. 

Exceptionally well! They capture more sunlight during the lower sun angles of winter. Additionally, they stay snow free on more days and benefit from the reflected sunlight from the snow layer. Read more about this in our blog post about winter performance.

Vertical Solar Panels and Snow

Yes, but we’re especially interested in partnering with companies and professionals who see the potential of our technology and are committed to transforming urban spaces. This means actively promoting our solution through marketing initiatives such as social media, websites, and industry events.

Absolutely! Our systems are fully compatible with standard solar inverters, provided they are correctly sized. The recommended inverter size will be detailed in the installer report provided by us or your trusted Over Easy Solar partner.

Our solar systems require minimal maintenance. Periodic visual inspections are recommended to check for any damage to the panels, such as broken glass, corrosion, or moisture. Also, ensure the mechanical stability of the units by inspecting the beams, friction pads, and tilt angles. If damage is found, please email a description and photo to info@overeasy.no for further assistance.

Yes, our system is designed for easy retrofitting onto existing green roofs without disturbing the plants. The free-standing design means you don’t have to tear up or remove your green roof to generate energy. In fact, our system benefits from the cooling effect of the plants, helping the panels maintain an optimal temperature and operate more efficiently.

For the best performance, we recommend installing our system in an east-west facing orientation. This setup works perfectly with our bifacial panels, taking advantage of the unique double energy peak to capture more energy. It helps generate power during the high-value periods—like early morning and late evening—when electricity prices are at their peak. Plus, vertical bifacial solar panels offer much higher capture rates, which means better financial returns, especially as dynamic pricing becomes more common. In the long run, this setup can give you up to 50% higher returns per installed kWp compared to traditional panels.

Learn more about capture rates in our blog post: Increased Value of Power from Vertical Bifacial Solar Panels

Thanks to the vertical orientation of our units, our system completely eliminates "lift force." The only wind force we need to address is the horizontal force, which we neutralize through our specially designed feet. These ensure our panels have a secure grip on both flat and green roofs. Additionally, all units in the array are interconnected for enhanced stability.

Each project is meticulously calculated, taking into account wind zones, terrain types, building dimensions, and the size of the PV array. Most of our systems are ballast-free, thanks to their inherently wind-resistant design. For projects that require ballast, we offer a specially designed ballast saddle. This saddle fits over the beams and accommodates standard ballast stones, ensuring seamless integration and added stability.

Yes, and in some cases, it produces even more due to its bifacial design that captures light from both sides. The vertical panels of Over Easy Solar systems generate more energy in specific conditions, such as during winter or in regions with low-angle sunlight. For instance, in Tromsø (NO), our units achieved a specific yield of 747 kWh/kWp per year, compared to 485 kWh/kWp per year from conventional systems—representing a 54% improvement. In Oslo (NO), the improvement was still 27%.

However, the advantage decreases as you move further south. In Alicante (ES), Over Easy Solar achieved a specific yield of 1186 kWh/kWp, while conventional systems produced 1448 kWh/kWp. That said, combining our systems with an existing white roofing membrane can boost the yield by up to 40%, making our solutions competitive with conventional systems. To learn more about how this works, read our blog post on How to Create an Energy-Efficient Building with Vertical Solar Panels and Cool Roofs.