Capacity: 60KW

Location: Bulgaria

Mounting System: Enerack ballasted-ULT & PRO system

Roof Type: Concrete Flat Roof

Application: Commercial Rooftop Solar Farm

The Challenge: Efficiency Without Penetration

For this 60kW project in Bulgaria, the client required a solar mounting solution that prioritized roof integrity and installation speed. Since the installation took place on a high-quality industrial concrete flat roof, a traditional penetrating mounting method was not an option due to potential water leakage risks. Furthermore, the local climate in Bulgaria demands a structure capable of withstanding significant snow loads during winter and high wind speeds in open areas.

The Solution: Enerack ULT-Pro Ballasted System

Enerack provided the ULT-Pro Ballasted System, a non-penetrative mounting solution designed specifically for flat roofs. By using concrete blocks as ballast, the system secures the solar array firmly to the roof through gravity and friction, ensuring 100% waterproof protection.

Key Features of the ULT-Pro Solution:

Non-Penetrative Design: No drilling or roof damage. It preserves the original building’s insulation and waterproofing layers perfectly.

Aerodynamic Engineering: The system features integrated wind deflectors to reduce uplift forces, allowing for a more stable structure with less ballast weight required.

Superior Corrosion Resistance: Constructed from high-strength AL6005-T5 Aluminum and SUS304 stainless steel fasteners, the system is built to last 25+ years in outdoor environments.

Quick Installation: Thanks to the pre-assembled components and the simple ballasted structure, the installation team was able to complete the 60kW array significantly faster than traditional rail systems.

Results and Performance

The 60kW solar farm in Bulgaria was successfully commissioned and is now providing clean energy for the commercial facility. The client reported high satisfaction with the Enerack ULT-Pro system, specifically noting the ease of alignment during the layout process and the rock-solid stability of the ballasted structure.

This project serves as a perfect reference for solar EPCs (Engineering, Procurement, and Construction) in Eastern Europe looking for reliable, cost-effective, and roof-friendly mounting structures.

Looking for a Professional Solar Mounting Solution?

Enerack provides customized layout designs (AutoCAD) and structural calculations for projects of all sizes. Contact us quickly!