Proyecto solar BIPV en edificio comercial de Chongqing Mountain City (5000 kW)

Proyecto solar BIPV en un edificio comercial de Chongqing Mountain City

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5MW Ultra-Large Scale Commercial Building Integrated Solar System
Southwest China’s largest commercial building BIPV project transforming 6 high-rise buildings into power-generating intelligent business complexes. Features three-dimensional solar integration across facades, rooftops, and skylights adapted for Chongqing’s unique mountain topography.
Especificaciones principales:
5,000kW installed capacity over 38,000㎡
≥21.2% commercial-grade module efficiency
6.5 GWh annual generation capacity
85% self-consumption, 15% grid sales
Grade 16 wind & Grade 8 seismic resistance
25 años de garantía de generación de energía
Benefits: $450,000 annual savings, 35% operational cost reduction, 15-20% rental premium, 6.8-year payback, 3,250 tons CO₂ reduction annually.
Applications: High-rise commercial complexes, urban business districts, green finance demonstration projects.

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Detalles de la solución y la aplicación

Nombre del proyecto: Proyecto solar BIPV en un edificio comercial de Chongqing Mountain City 

Tipo de proyecto: Ultra-large Scale Commercial Building Integrated Photovoltaics 

Capacidad instalada: 5000KW

Resumen del proyecto

Located in Chongqing’s core business district, this project provides comprehensive
BIPV solutions for large commercial building complexes, covering building facades,
rooftops, and skylight systems. The project fully integrates Chongqing’s unique
“Mountain City” topographic features and subtropical monsoon climate conditions,
employing our most advanced ultra-large commercial building BIPV technology to
achieve a “three-dimensional power generation, intelligent business” green building
model, becoming the largest single commercial building BIPV project in Southwest
China and providing typical demonstration for Chongqing’s construction of National
Green Finance Reform and Innovation Pilot Zone.

Especificaciones técnicas

• Project Scale: 5000KW installed capacity
• Building Coverage: 6 high-rise commercial buildings (30-50 floors)
• Application Area: 38,000㎡ building surface
• Facade Application: 28,000㎡ photovoltaic glass curtain wall
• Rooftop Application: 10,000㎡ photovoltaic roofing system
• Power Generation Efficiency: Commercial-grade module efficiency ≥21.2%
• Annual Power Generation: Approximately 6,500,000 kWh
• Carbon Emission Reduction: ~3,250 tons CO₂ annually
• Self-consumption Ratio: 85% building complex self-use, 15% grid sales
• Wind Resistance: Grade 16 strong wind resistance (≥70m/s)
• Seismic Resistance: Grade 8 seismic fortification (adapted to Chongqing geological conditions)
- Vida útil: 25 años de garantía de generación de energía

Proyectos destacados

• Three-dimensional Integration: Comprehensive BIPV application across facades + rooftops + skylights
• Mountain City Adaptation: Technical solutions specifically designed for Chongqing’s topography and climate
• Smart Business: Integrated building automation and energy management systems
• Financial Innovation: Chongqing’s first commercial real estate green finance BIPV project
• Aesthetic Value: Perfect integration of modern commercial architecture with photovoltaic technology
• Demonstration Effect: Leading new trends in Chongqing’s commercial building green development

Commercial Building Complex Benefits

• Power Revenue: Total annual electricity cost savings of ~\$450,000
• Operating Costs: 35% reduction in overall building complex operating costs
• Rental Premium: Green building rental premium of 15-20%
• Carbon Asset Value: Annual carbon trading revenue of ~\$22,500
• Investment Returns: Overall project payback period of 6.8 years
• Brand Value: Creating landmark green commercial building complex in Chongqing

Commercial Tenant Benefits

• Electricity Costs: Average 30% reduction in tenant electricity costs
• Work Environment: Photovoltaic glass regulating indoor lighting, enhanced comfort
• Corporate Image: Green building tenancy enhancing corporate ESG ratings
• Policy Support: Access to Chongqing green building preferential policies
• International Certification: Building achieving LEED green building certification
• Business Value: Becoming preferred location for high-end business offices in Chongqing

Testimonio de un cliente

This ultra-large BIPV project has completely transformed our perception
of commercial buildings. Not only has it significantly reduced operating costs,
but it has also made our commercial building complex a new landmark in Chongqing.
Chongqing is vigorously developing the photovoltaic industry and creating a green
and low-carbon development highland. Jia Mao’s technology has given us a first-mover
advantage in this trend. Now tenants take pride in occupying green intelligent
buildings, which has tremendously helped enhance our commercial value.

Innovaciones técnicas

• Mountain city topography adaptation: Inclined installation technology for Chongqing’s unique terrain
• High-rise building specialization: Structural design of photovoltaic systems for super high-rise buildings
• Intelligent shading adjustment: Smart light transmission adjustment based on mountain city sun angles
• Anti-fog and moisture-proof technology: Special treatment adapted to Chongqing’s high humidity climate
• Three-dimensional microgrid system: Intelligent power dispatch and energy storage configuration between buildings

Impacto de la demostración

• Became benchmark BIPV application project for commercial buildings in Southwest China
• Drove 20+ commercial real estate projects in Chongqing to initiate BIPV renovations
• Achieved dual certification as “Chongqing Green Building Demonstration Project” and “Green Finance Innovation Project”
• Responding to Chongqing’s “Million Kilowatt Rooftop Solar” construction plan, providing typical cases for Chengdu-Chongqing Economic Circle green development
• Promoted local Chongqing BIPV industry chain development, supporting Southwest China photovoltaic industry center construction

Valor medioambiental y social

• Ecological Benefits: Annual emission reduction equivalent to carbon sequestration of 13,000 trees
• Aligns with Chongqing’s diversified energy system development of “wind, solar, water, thermal, and storage”
• Employment Promotion: 100 green building professional employment positions for Chongqing
• Industrial Upgrade: Promoting Chongqing’s transformation from traditional manufacturing to green intelligent manufacturing
• City Image: Enhancing Chongqing’s brand image as an international landscape smart city
• Financial Innovation: Contributing to Chongqing Green Finance Reform and Innovation Pilot Zone construction

PREGUNTAS FRECUENTES

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The pre-stressing force used to improve the mechanical resistance of the panel toward horizontal forces due to winds and earthquakes guarantees structural integrity. The project employs specialized inclined installation technology adapted to Chongqing’s mountainous terrain, with anti-fog and moisture-proof technology addressing the city’s high humidity subtropical monsoon climate. The intelligent shading adjustment system optimizes light transmission based on mountain city sun angles, while Grade 8 seismic fortification specifically adapts to Chongqing’s geological conditions.

Building Facade Integrated Photovoltaic, however, focusing mainly on thermal performance, which fails to ensure seismic safety of high-rise buildings integrated photovoltaic represents a significant challenge. Our project addresses this through structural design of photovoltaic systems specifically for super high-rise buildings, with Grade 16 strong wind resistance (≥70m/s) and coordinated three-dimensional microgrid systems enabling intelligent power dispatch between buildings across the 38,000㎡ application area.

The latest curtain walls reduce building heating requirements by 40.8% compared to ordinary glass. Curtain walls also improve the efficiency of lighting and thus reduce lighting costs, contributing to tenant electricity cost reductions of 30% on average. The high self-consumption ratio maximizes economic benefits by offsetting expensive commercial electricity during peak business hours, while photovoltaic glass regulates indoor lighting for enhanced comfort, creating a 15-20% green building rental premium.

 There are no clear guidelines for issues like required ventilation shafts, hurricanes, or severe wind resistance requirements for a roof, making professional maintenance critical. The 28,000㎡ photovoltaic glass curtain wall and 10,000㎡ rooftop system require quarterly visual inspections, semi-annual professional cleaning, and annual electrical system testing. The integrated building automation system provides predictive maintenance alerts, while the Grade 16 wind resistance design minimizes weather-related maintenance needs.

The 6.8-year payback period is competitive for ultra-large BIPV installations considering the dual benefits of building envelope replacement and power generation. With annual electricity cost savings of ~$450,000 and 35% reduction in overall building complex operating costs, the project generates multiple value streams including carbon trading revenue (~$22,500 annually) and green building rental premiums, creating substantial long-term economic benefits beyond the payback period.

As Chongqing’s first commercial real estate green finance BIPV project, it provides practical demonstration for the National Green Finance Reform and Innovation Pilot Zone construction. The project has driven 20+ commercial real estate projects in Chongqing to initiate BIPV renovations and promotes local Chongqing BIPV industry chain development, supporting Southwest China photovoltaic industry center construction while creating 100 green building professional employment positions.

The comprehensive BIPV application across facades + rooftops + skylights creates a three-dimensional power generation matrix that maximizes energy capture throughout the day. The intelligent power dispatch system coordinates generation from different building orientations and elevations, while the energy storage configuration between buildings optimizes power distribution. This approach achieves 6.5 million kWh annual generation from the 38,000㎡ application area with commercial-grade module efficiency ≥21.2%.

The project prevents approximately 3,250 tons of CO₂ emissions annually, equivalent to the carbon sequestration of 13,000 trees, contributing significantly to Chongqing’s diversified energy system development. As a new landmark in Chongqing’s core business district, it enhances the city’s brand image as an international landscape smart city while promoting traditional manufacturing transformation toward green intelligent manufacturing, supporting Chongqing’s “Million Kilowatt Rooftop Solar” construction plan and Chengdu-Chongqing Economic Circle green development.

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