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Beijing Poly Longshang Luxury Villa: BIPV Integration on Complex Roof Geometry

Exterior view of a luxury villa in Beijing featuring the Sunlit Lumina Slate invisible BIPV solar roof.
Project Type

High-end residences

Project Date

January 2, 2025

Project Address

China

Product Type

Lumina Slate Series

  • Complex Roof Geometry & Obstacles: The villa features a highly sophisticated multi-hip roof design, punctuated by chimneys and large skylights. Traditional rectangular solar panels cannot efficiently cover these irregular trapezoidal roof faces without leaving awkward gaps and wasting valuable space.
  • Aesthetic Preservation: Located in a high-end residential community, the client demanded a 13kW high-capacity solar system but absolutely refused the visually disruptive, bulky metal frames of traditional BAPV systems.
  • Edge-to-Edge Modular Fit: We deployed the Lumina Slate (Pro+) series. Its modular design and custom flashing allowed our installation team to navigate seamlessly around the chimneys and skylights. By covering the irregular facets edge-to-edge, we maximized the active roof area to 255 sq.m.
  • The Invisible Solar Roof: The finished roof maintains a sleek, modern, flush aesthetic that perfectly matches the villa’s high-end architectural style, while seamlessly generating 15,600 kWh annually.
Product Gallery
Technical Highlights& Components
  • System Type: Grid-Tied Residential
  • Solar Tiles: Lumina Slate Series 
  • Installed Capacity: 13 kWp
  • Active Roof Area: 255 sq.m
  • Annual Estimated Output: 15,600 kWh
  • Annual Environmental Impact: Reduces CO2 emissions by 12.7 tons, equivalent to planting 707 trees annually.
Project Log

“This project proves that complex roof geometries are no longer a barrier to high-capacity solar. With Lumina Slate, every slope, corner, and skylight is an opportunity for seamless power generation without aesthetic compromise.” — Sunlit Engineering Team

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