As solar adoption continues to grow, not every roof is created equal—especially when it comes to weight capacity, green roof compatibility, and space limitations. That’s where OverEasy Solar comes in.
PV Plus is proud to be one of the few approved OverEasy Solar installation partners in the UK, offering access to this groundbreaking technology for commercial and industrial clients. Whether you’re working with an existing green roof or a flat roof with tight structural load limits, OverEasy Solar provides a smart, lightweight, and space-efficient solution designed for modern building needs.
What Makes OverEasy Solar Different?
OverEasy Solar’s vertical PV systems are engineered specifically for flat rooftops, with a unique focus on biosolar integration and low structural impact. Unlike traditional panels that require angled mounting and heavy ballast, OverEasy panels stand vertically, taking up less space and dramatically reducing roof load.
Key Features:
- Lightweight Design: Each unit weighs just 26kg, with a system weight of ~11 kg/m².
- No Roof Penetration Required: Units sit freely on the roof membrane or green roof substrate—no fixings needed.
- Wind-Tested Stability: Designed to withstand strong wind loads without lifting, thanks to their vertical orientation and interconnected layout.
- Bifacial Panels: Each panel captures light on both sides, increasing energy yield—especially effective in northern climates and light-colored rooftops.
Why Choose OverEasy for Green Roofs?
Traditional PV systems can be incompatible with existing green roofs. They typically require the vegetation layer to be removed for installation. OverEasy Solar overcomes these issues with:
- Minimal Shading: Their vertical layout ensures more even light distribution to the vegetation below.
- Retrofitting Made Easy: Units can be placed directly on existing green roofs, avoiding disruption to the ecosystem.
- Accessible Maintenance: The open layout makes it easier to perform both solar system checks and green roof upkeep.
Perfect for Lightweight and Complex Roofs
OverEasy is especially valuable for buildings that:
- Have low structural load capacities
- Already have or plan to install green roofs
- Are located in urban areas with rooftop obstacles
- Experience heavy snowfall or wind (thanks to the self-cleaning, vertical setup)
While conventional PV mounts such as Optigreen or Bauder may yield more per m² on large, open rooftops, OverEasy wins out in complex scenarios where space, weight, or vegetation are limiting factors.
OverEasy Solar – Frequently Asked Questions
1. Do vertical solar panels generate as much energy as traditional flat-mounted panels?
OverEasy’s vertical panels are bifacial, meaning they generate electricity from both the front and rear surfaces by capturing direct and reflected light—especially effective in northern climates with low-angle sunlight. Per kWp installed, they can often produce more annual energy than conventional systems.
However, to avoid shading between rows, vertical panels must be spaced further apart. This means that fewer kWp can be installed per square metre compared to traditional flat-mounted systems. On large, unobstructed rooftops, conventional solar systems may therefore deliver higher total output due to their greater system density. But on weight-limited, shaded, or green roofs, OverEasy’s design offers a more practical and efficient alternative.
2. What is the expected output and efficiency?
The specific yield depends on several factors: latitude, orientation, and roof reflectivity (albedo). OverEasy uses high-efficiency bifacial cells with a bifaciality factor of 95.7%, significantly higher than the market standard of 75–85%. This makes both sides of the panel highly productive.
3. How heavy is the system?
Each unit, including feet and cable tray, weighs about 26kg, with a system load of around 11 kg/m²—making it ideal for roofs with tight weight constraints.
4. How is the system mounted?
OverEasy systems are ballast-free and non-invasive. They sit on the surface of the roof or green roof without fasteners. The unique design resists lift from wind, requiring only minimal horizontal stabilisation. Once interconnected in arrays, their combined weight and friction keep them in place.
5. Is it certified for wind loads?
Yes. OverEasy systems have undergone extensive wind tunnel testing by the Institut für Industrieaerodynamik (IFI)in Aachen. They meet EN 1991-1-4 guidelines across Europe and have a detailed wind load calculation tool for project-specific assessments.
6. Will ballast ever be required?
For very small or exposed sites—like buildings near the coast or rooftops under 30 units—ballast may be required.
7. Can it be installed on all types of flat roofs?
Yes, the system works on most flat roofs (≤5° slope) and some slightly pitched ones (up to 7° for part of the system). It’s also compatible with various membrane and green roof types.
8. Is it suitable for all green roofs?
Not quite. The standard system allows for 12cm clearance, so it’s best suited to low-growing sedum or moss roofs. Taller vegetation may shade the panels and reduce efficiency.
9. How does it affect roof maintenance?
OverEasy systems are designed with open, walkable layouts that allow easy access for both solar and green roof maintenance.
10. What’s the long-term performance like?
OverEasy guarantees that their panels will retain at least 80% of their original output after 25 years, offering excellent durability and performance.
Ready to Bring OverEasy Solar to Your Project?
As one of the UK’s approved OverEasy Solar installation partners, PV Plus is uniquely positioned to help you design, supply, and install this innovative system. Whether you’re working on a green roof retrofit, a low-load commercial site, or a sustainability-focused new build, we’ll guide you through every step—from design and compliance to installation and long-term performance.
