Building-integrated photovoltaics (BIPV) represents a significant advancement in the quest for sustainable and renewable energy solutions. By integrating photovoltaic systems directly into building structures, BIPV systems serve dual purposes: they generate renewable energy while simultaneously serving as building materials. In India, the adoption of BIPV is gaining momentum across various types of buildings, from commercial data centers to residential villas. This article delves into notable BIPV projects across the country, showcasing the diversity and technological innovation in this sector.


1. CTRLS Data Center, Mumbai

Location: Mumbai

Technological System: Rainscreen

Nominal Power: 863 kWp

Constructed By: U-Solar

Type of Building: Commercial

Panels Used: Mono c-Si frameless modules

Energy Production: 593,014 kWh/Year

Payback Period: 4.3 Years

Year of Construction: 2020

The CTRLS Datacenter in Maharashtra, renewed in 2020, features BIPV glazed modules on all four facades, covering 51,505 square feet. This installation, realized by U-Solar, is the largest vertical solar PV system in India, with a capacity of 863 kWp. The system utilizes mono c-Si PV frameless modules, resulting in an energy production of over 590 MWh per year, which exceeds initial expectations by 7%. Despite the high energy demand of the datacenter, the installation achieves a 100% self-consumption rate.


2. Rupa Renaissance, Mumbai

Location: Mumbai

Technological System: Canopy

Nominal Power: 300 kWp

Constructed By: Aelius Turbina

Type of Building: Commercial

Panels Used: Mono PERC cells

Energy Production: 405,000 kWh/Year

Payback Period: 3 Years

Year of Construction: 2021

At Rupa Renaissance in Mumbai, a 300 kW solar plant was installed using Mono PERC cells, which offer 21.2% efficiency. This rooftop installation not only generates substantial energy but also integrates seamlessly with the building’s design, providing additional benefits like savings on metal roofing and mounting structures. The system, which produces 405,000 kWh annually, demonstrates the potential of BIPV to deliver high energy yields and cost savings.


3. Festo Building, Noida

Location: Noida

Nominal Power: 180 kWp

Constructed By: Tata Power Solar

Type of Building: Commercial

Panels Used: 1280M Tata Power Solar – 80 Wp

Energy Production: 17,000 kWh/Year

Year of Construction: 2011

In 2011, the Festo administrative building in Noida incorporated a 20 kWp solar shading device by Tata Power Solar. This multifunctional installation protects the building from overheating and direct solar radiation while generating about 17,000 kWh of renewable electricity annually. It also helps avoid 1.3 tonnes of CO2 emissions each year. The south-oriented system, mounted on a stainless-steel structure, maximizes energy production, reduces cooling energy demand, and enhances user comfort.

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4. Institute of Maritime Studies, Pune

Location: Pune

Technological System: Facade

Nominal Power: 100 kWp

Type of Building: Educational

Panels Used: Translucent and opaque facades

Year of Construction: 2007

The Institute of Maritime Studies in Pune, established in 2007, is one of India’s early adopters of BIPV technology. This educational institution benefits from an integrated solar power system that aligns with its mission of sustainability and energy efficiency. The implementation of BIPV at this institute underscores the role of educational buildings in leading by example in the adoption of renewable energy technologies.

5. Malabar HQ, Kozhikode

Location: Kozhikode

Technological System: Canopy

Nominal Power: 60 kWp

Type of Building: Administrative

Panels Used: Semi-transparent glass/glass modules (PERC, bifacial modules)

Energy Production: 89,060 kWh/Year

Year of Construction: 2019

The project constituted of more than 180 highest quality PERC solar panels installed as canopy over the building. The solar power plant installed at the site helps to produce about 89,000 kWh per year and thus annually saving around Rs 7,12,480. The solar power plant helps to reduce around 44 tons of carbon dioxide and helps to save around 2,013 trees. The installation of the solar power plant required a completion time of two weeks.

6. Atal Akshaya Urja Bhavan, New Delhi

Location: Delhi

Technological System: BIPV facade and roof

Nominal Power: 47 kWp

Type of Building: Office

Year of Construction: 2016

Atal Akshaya Urja Bhavan in New Delhi, completed in 2020, incorporates BIPV technology as part of its sustainable design. This government building serves as a model for integrating renewable energy solutions in public infrastructure. The BIPV system here not only reduces the building’s carbon footprint but also enhances its energy independence, illustrating the potential for BIPV to transform public sector buildings into green, energy-efficient landmarks.

7. Residential Building, Idukki, Kerala

Location: Idukki, Kerala

Technological System: Canopy

Nominal Power: 18 kWp

Constructed By: Aurial Solar, Greentech

Type of Building: Residential

Energy Production: 23,725 kWh/Year

Year of Construction: 2021

This residential project in Idukki, Kerala, demonstrates the applicability of BIPV systems in residential buildings, using a canopy system to produce significant energy for household use.

8. Ponnore Group (Aqua Star), Kerala

Location: Kerala

Technological System: Curtain Wall

Nominal Power: 12.2 kWp

Type of Building: Administrative

Panels Used: Mono PERC double glass semi-transparent BIPV facade

Energy Production: 17,000 kWh/Year

Payback Period: 4.3 Years

Year of Construction: 2020

This administrative building is covered with high efficiency mono PERC double glass semi-transparent BIPV facade facing the south and west orientation. The solar power plant transforms the Ponnore Group Construction in a low energy building. Indeed, the energy production, estimated in about 17,000 kWh/yr, generates 50% of the energy requirement of the building. Considering the high yearly solar horizontal irradiation of the location (about 2,000 kWh/m2/yr) and according with the calculation of the facade manufacturer, the payback time of the investment in the solar power plant is only 4.3 years by including a 40% tax depreciation.

9. Desai Brothers Ltd, Sahakarnagar

Location: Sahakarnagar

Technological System: Discontinuous Roof

Nominal Power: 5 kWp

Type of Building: Commercial

Panels Used: BIPV Roof Tiles

Energy Production: 6,300 kWh/Year

Payback Period: 5-6 Years

Year of Construction: 2019

This administrative building is covered with high-efficiency mono PERC double glass semi-transparent BIPV facade facing the south and west orientation. The solar power plant transforms the Ponnore Group Construction in a low-energy building. Indeed, the energy production, estimated in about 17,000 kWh/yr, generates 50% of the energy requirement of the building. Considering the high yearly solar horizontal irradiation of the location (about 2,000 kWh/m2/yr) and according with the calculation of the facade manufacturer, the payback time of the investment in the solar power plant is only 4.3 years by including a 40% tax depreciation.

10. Sierra E-Facility HQ, Coimbatore

Location: Coimbatore

Technological System: Curtain Wall

Nominal Power: 4.3 kWp

Type of Building: Commercial

Panels Used: Transparent glass modules

Energy Production: 1,476 kWh/Year

Payback Period: <16 Years

Year of Construction: 2018

The facade of the building in Coimbatore is fitted with amorphous silicon BIPV modules that produce solar power energy in conditions of low light. The curtain wall facade combines transparent photovoltaic glass with conventional glass, achieving an aesthetic and functional result. Has been calculated that the yearly energy production is about 1,200 kWh. The PV glazing solution is a laminated safety glass with modules used in standard size (4.1×6.1ft2) with medium transparency. The solar capacity of the building has been completed with further PV installation on the roof. The Sierra E-Facility uses environmentally friendly building materials and high-performance glass. It scored 103 points in the LEED-NC rating system.


Conclusion

The adoption of BIPV systems in India is on the rise, driven by the need for sustainable and renewable energy solutions. These projects, spanning commercial, educational, administrative, and residential buildings, illustrate the versatility and efficiency of BIPV technology. As more buildings integrate these systems, India moves closer to a greener and more energy-efficient future.

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