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Building-Integrated Photovoltaic (BIPV) in Residential and

Commercial Sectors

Dr. Sanjay Vashishtha

CEO Firstgreen Consulting Pvt Ltd

Gurgaon

What is BIPV ? BIPV or Building Integrated Photo Voltaic, as the name suggests deals with integrating the Solar Photo Voltaic panels into building design. The can be used to replace proposed glazing areas without affecting the contemporary aesthetics of steel & glass or fixed on South façade as building cladding.

BIPV benefits:

•PV as part of building support structure

• Reduced Cost

• On-site generation of electricity

• Architecturally elegant

•Highly visible public expression

Building Integrated Photo Voltaic Systems ( BIPV)

Selection of PV modules for Façade

Colored photovoltaic glass

Source: Genyo Laboratories

Possible cell combination cell-type and cell

distances

Typical building applications of BIPV

Difference between PV on Roof and Facade

Difference between PV on Roof and Facade

Difference between PV on Roof and Facade

Photovoltaic's into facades

Ventilated Cladding facade / Cold Facade

•Profiles or brackets are mounted on the

main bearing wall. Cassettes or panels are

attached using cladding profiles rails and

hook on system.

•Easy wiring, the wires are running behind

the modules. Generally back junction boxes.

Somewhat back ventilation.

BIPV Mounting options

BIPV Mounting options : Sun screening components

Example of fixed sunscreens over the windows.

Malmö Stadsfastigheter - Sweden

Mounting Systems

Structural sealant glazing (SSG)

• With structural sealant glazing facades, the

solar modules are fixed in place on a metal

frame by means of circumferential load-

transferring bonds.

• This produces facades with a homogeneous

and smooth appearance.

• Furthermore, SSG facades have no external

protruding parts, which means that shading

and dirt traps are avoided.

Mounting Systems

Ventilated curtain wall systems

Mounting Systems

• Mullion-transom constructions

Mounting Systems

•Aluminum mullions and

transoms profiles system.

Module Installation

Module Installation

Module Installation

Selection of inverter

Reduced Effects of Shading

If the performance of one PV-

module drops, due to shading,

module mismatching, or snow or

dirt on modules for example, the

modules in the same string are

affected negatively. Through the

individual connection in PV-systems

using micro-inverters the PV

modules work independently, each

at their maximum performance.

Array wiring

Array Wiring

Grid connectivity BIPV without Battery

Grid connectivity BIPV with Battery

Case study-Ansal Experience center

PV on Facade

28

Preliminary Analysis For BIPV In

Ansal Experience Centre, Lucknow

Area required = 10m2/kw

Possible BIPV areas available include.

1. South façade Wall Area= 1000 sqm ( 100 KW

system)

2. Spandrel wall areas = 500 sqm ( 50 Kw system)

3. Pergola at Roof = 75 Sqm ( 8 Kw System)

4. Entrance Canopy= 75 Sqm ( 8 Kw System)

Façade wall area for BIPV

Entrance area Canopy on

ground floor

Pergola at roof

Spandrel area for BIPV

BIPV mounting options: Photovoltaic double glazed

insulating units

An external photovoltaic laminated glass

BIPV mounting options: Use of Transparent PV Panels in Building

Façade.

Integration of PV with other elements. Skylight in a PV

roof. As Pontes, Galicia. Source: ISOFOTON

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Use of Transparent PV Panels in Railings, Façade & Fence

Ökotec building in Berlin

Photovoltaic Modules with Vision

Light Integrated into a Skylight

Semitransparent modules in roof. Ministry of

Economic Affairs – Conference area. Right: inside

view. Tilted PV façade.

Source: Scheuten Solar

Building Integrated PV Technology

with – Canopies/Pergolas

ZICER Building, University of East Anglia. Semi-transparent PV modules

Building Integrated PV Technology

Spandrel Areas

Battery Park: USA largest BIPV

Double skin façade

Double-skin PV façade in an educational centre

(Barcelona) Universidad de La Salle.

Allows for interior vision.

Lifecycle benefits

BIPV systems also provide other benefits compared to

retrofitted systems:

• Additional energy savings. BIPV systems can

provide day lighting, shading, and increased

rooftop insulation. These benefits reduce lighting

and cooling requirements.

• Public relations and education. Because BIPV

system are integrated into a building they are

more visible from the street, while many

retrofitted systems are hidden on rooftops. Thus

BIPV systems can have a high profile, increasing

opportunities for education and marketing.

• Lower maintenance. Some BIPV systems can

increase the life of the roof.

PV ON THE JAALI

Using the jaali for the fixing of photovoltaics

First Green Consulting Private Limited Gurgaon:

First Floor, U – 28, A / 3, DLF Phase – III, Gurgaon – 122002, India Tel.: (+91) 124 406 3031 Web: www.firstgreen.co Email: sanjayvashishtha@gmail.com Mobile: +91 9899295854

Thank You