Roofit.Solar’s latest Velario Slim solar roofing system introduces a novel approach to incorporating renewable energy in cities by maximizing efficiency within a sleek structure. Merging Scandinavian-inspired design with advanced photovoltaic methods, this architectural innovation delivers high energy output per unit area while respecting historical building standards.
Main Advancements
1. Efficient Spatial Design
Feature | Velario® Slim | Earlier Version | Change |
---|---|---|---|
Panel Width | 471mm | 550mm | -14.3% |
Power Density | 190 W/m² | 161 W/m² | +18% |
Roof Coverage Capacity | 98% | 89% | +9% |
The slimmer profile allows near-total roof use on intricate structures such as angled roofs and towers—essential for Europe’s older cities, where over two-thirds of buildings were constructed before 1945.
2. Advanced Cell Technology
The system uses N-type Tunnel Oxide Passivated Contact cells, which:
- Retain 92% efficiency at 50°C compared to 85% for standard cells
- Limit yearly performance loss to 0.4% (typical systems: 0.55%)
- Reach 21.6% efficiency via precision laser techniques
3. Aesthetic Preservation
Designed with guidance from UNESCO, the 34mm-thick panels mimic historic metal roofing styles. Verified installations cover:
- Tallinn’s medieval district (Estonia)
- Protected Victorian homes (Bristol, UK)
- Art Nouveau buildings (Riga, Latvia)

Industry Impact
Debuting as EU nations work toward updated building energy standards mandating:
- Fully renewable-powered public structures by 2026
- 45% lower emissions in renovations by 2030
The Velario® Slim fills critical needs:
- City Space Constraints: Enables 24% greater panel placement on typical urban roofs
- Preservation Rules: Complies with 22 European heritage codes
- Cost Efficiency: Pays back in 6.2 years versus 8.5 years for older solar tiles
Strategic Outlook
CEO Andres Anijalg states: “This technology reshapes urban energy planning. Our data indicates 4.7 million EU residences once considered incompatible with solar can now generate self-sufficient power.”
Scheduled for initial deployment in June 2025, Roofit.Solar targets 15% of Europe’s building-integrated solar market within three years. The release aligns with €4.3 billion in EU funding for updating protected urban areas.