Building-Integrated Photovoltaics (BIPV)
Context: Building-Integrated Photovoltaics (BIPV) offer a space-efficient, aesthetic, and sustainable solution to urban solar energy generation by embedding solar elements directly into building materials, but require strong policy, incentives, and awareness to scale in India.
Important Pointers:
Definition: BIPV integrates solar panels into architectural elements like façades, roofs, windows, and railings, allowing buildings to generate electricity.
Dual Purpose: Acts both as a structural building component and as a power-generating surface, unlike traditional rooftop systems.
Space Efficiency: Ideal for densely populated urban areas with limited rooftop space; uses building surfaces more efficiently.
Energy Potential: A single building’s façade can generate 3–4 times more solar power than its rooftop (e.g., 150 kWp from a façade vs. 40 kWp from a roof).
Applications: Usable in residential, commercial, and public buildings—e.g., apartments, airports, and railway stations—without altering aesthetics.
Customisation: BIPV panels can be made in various colours, shapes, sizes, and transparency levels to match architectural design.
Notable Installations in India: CtrlS Datacenters (Navi Mumbai), Renewable Energy Museum (Kolkata), and Jindal Steel (Odisha) feature major BIPV systems.
Policy Support: Included in the PM Surya Ghar Muft Bijli Yojana for residential use with subsidies of up to ₹78,000 for 3 kW systems.
Barriers to Adoption: High upfront cost, policy gaps, limited awareness, and lack of indigenous manufacturing capacity hinder uptake.
International Example: Seoul subsidises up to 80% of BIPV installation costs; similar policy incentives are recommended for India.
Future Potential: India’s building-integrated solar potential is estimated at 309 GW, crucial for meeting the 300 GW solar target by 2030.