The modular construction sector is booming. With demand growing for faster, greener, and more cost-efficient ways to deliver housing, education, and commercial infrastructure. But integrating solar PV into modular buildings has traditionally been a sticking point. Roof load limits, waterproofing concerns, and on-site complexity have often made solar a design and logistical headache.
That’s why at PV Plus, we’re proud to be one of the only approved UK installation partners for OverEasy Solar — a revolutionary, prefab PV solution that solves all these challenges in one go.
A plug-and-play PV system made for modular
OverEasy Solar’s xM-2 QUATTRO-200S is a fully integrated solar unit combining vertical bifacial solar panels, mounting frame, and cabling — preassembled and delivered to site ready to go. This system installs in just 15 minutes per kWp, compared to the 1.5–3 hours typical for traditional systems. One pallet contains 33 units and covers 80 m², generating up to 6.6 kWp — perfect for streamlined offsite logistics.
This approach aligns perfectly with modular construction’s DfMA principles. Reducing on-site works, simplifying planning, and accelerating project timelines.
No ballast. No fixings. No compromises.
One of the biggest challenges in adding solar to modular buildings is the roof. Many modular units have strict structural limits or use membrane-based roofing systems that cannot be penetrated without voiding warranties. Traditional PV setups often require heavy ballast or intrusive fixings — neither of which is viable here.
OverEasy’s solution changes the game:
- Weighs just 11kg/m², including panels, mountings, and cabling
- No ballast required — tested and certified for wind resistance under EN 1991-1-4
- Zero roof penetration — avoids risk of leaks or future maintenance issues
- Fire-safe design — vertical layout prevents spread beneath panels, maintaining membrane fire resistance
In other words: OverEasy Solar delivers all the benefits of a rooftop PV system without the weight or risk — making it ideal for modular buildings, even those with tight load limits. In some cases, a minimal amount of ballast may still be required depending on factors like building height, location, and the overall size of the PV array. However it’s still significantly less than what a traditional flat roof system would need, keeping weight and structural impact to a minimum.
Smarter energy performance
The xM-2 QUATTRO-200S features vertical bifacial panels, meaning they capture solar energy from both sides — including reflected light from the roof. This produces a unique double-peak energy profile with stronger generation in the morning and evening, when energy use and grid demand are often highest.
This smarter energy curve improves self-consumption — a key goal for commercial and public sector clients trying to reduce energy bills and reliance on the grid. It also performs better than traditional flat panels in winter, cloudy conditions, and on reflective roof surfaces like white membranes (with up to 30–40% more yield thanks to increased albedo effect).
Trusted supply and installation by PV Plus
At PV Plus, we’re not just familiar with OverEasy Solar — we’re one of the very few UK-approved installation partners. That means we’ve been trained and vetted by the manufacturer and can offer full system design, supply, and install with confidence.
We specialise in delivering solar for commercial buildings, schools, public sector estates, and retrofit projects — and we’re already supporting modular contractors and main contractors to integrate OverEasy Solar into upcoming schemes.
In summary: Why OverEasy is the modular solar solution
- ✅ Lightweight (11kg/m²) and no ballast = suitable for almost any modular roof
- ✅ Zero fixings = protects waterproofing and membrane systems
- ✅ Fast install (15 mins/kWp) = ideal for tight programmes and factory-built modules
- ✅ Higher yield, especially in winter and low-angle light
- ✅ Fire safe, wind tested, MCS-compliant, and easy to maintain
- ✅ Available now through PV Plus — one of the only UK-approved partners
Want to discuss your modular project?
We’d be happy to help — whether you’re still in design, looking at structural options, or ready to go to site.
Drop us a message, and we’ll show you how OverEasy Solar can make modular PV simple, safe, and sustainable.
