2. ONYX Solar BIPV (building integrated photo voltaic)
are used for the replacement of conventional
construction materials in different parts of building
exterior - roof, skylight, curtain wall, facade, car
park, canopy, pergola, etc.
ONYX Solar BIPV can turn these structures into a
complete, multifunctional, high-performing, Solar
Energy Power Plant.
The design approach consists of developing unique and
elegant solutions with improved AESTHETICS. for
architectural integration, by combining both thermal
optimization and photovoltaic generation.
* Established in 2004
* HQ at Avila, Spain
* Preferred by Top-Ranked Architects
* Many Iconic Projects
* World's FIRST multi-functional BIPV
* Patented Coloured Transparent BIPV
* Comply to Construction Standards
* Present in more than 20 Countries
* Double & Triple Glazing
* "Most Innovative Glass Product - 2015" -
Glass Magazine WINNER
3. Power Gen-Solar, a Partnership
Company, Headquarterd at Chennai, is in
its Second Year of Operation, as the "Sole
National Distributor" for ONYX Solar
Energy, Avila, Spain.
Has Pan-India presence, through Branch
Sales Offices, Accredited Retail Resellers
and Accredited Associates - Chennai,
Bangalore, Cochin, Hyderabad, Mumbai,
Ahmedabad, New Delhi, Kolkata.
Already received Orders -
"Agastha Software - Chennai -
Crystalline Panels - 4.2 kW - Curtain
Wall",
"Healthcentre - Kanpur - Amorphous
Silicon - 10 Panels - 20 %
Transparency",
"Perfect Engineering - Coimbatore -
120 kW - Crystalline Panels - Skylight
/ Rooftop",
"Mr. Rajnikanth's Residence,
Chennai - Skylight - 6 Panels - 30 %
Transparency",
"Sierra ODC, Coimbatore - East &
West Elevation - 30 % Transparency -
116 Panels"
* Amorphous Silicon BIPV
* Crystalline BIPV
* Structural * Electrical
* Solar Inverters * Consulting
4. View from Interior side - Amorphous Silicon BIPV
30 % transparency - Neutral Colour
5. View from Interior side - Amorphous Silicon BIPV
10 / 20 / 30 % transparency - Neutral Colour
6. * "Best Project in Colorado in 2015" - Awarded by the ENR Magazine for "Denver Science Pyramid"
* Kuwait Award for "Excellence in Sustainable Energy 2015" - for the "Most innovative sustainable technology"
* Best of "What's New Award 2015" by the Popular Science Magazine for the "Best Engineering Product"
* Best Turnkey Project 2015 in the Solar Industry International Awards
* Best Outdoor Product 2015 - by the Architect's Newspaper Magazine for the "Photovoltaic Floor"
* The Most Innovative Glass Product 2015 - awarded by the National Glass Association and Window &
Door, for Low-e Photovoltaic Glass
* Best Innovative Project 2015 - by El Mundo for the Photovoltaic Floor
* Innovative Company 2015 - P Promecal Awards
* We are Sustainable 2015 - "We are a company" awards, by the "Popular" Bank.
* Best Project in the New York area 2014 - awarded by the ENR Magazine for the Novartis Project
* Finalist for the "Most Innovativve Project 2014" in the European Awards for Regional Innovation.
* "Best Entrepreneurial Project in 2013" in the V Energen-National Energy Awards "from the idea to the
company".
* Finalist for the "Best Construction Material 2013" in the VII NAN Architecture and Constuction Awards, in
the Walkways & Facade Category
* "Best Revelation Enterprise in Castile & Leon 2012" by Actualidad Economica Magazine
* Ist Red Emprendeverde Awards 2012, Biodiversity Foundation
* "Best Entrepreneurial Company 2011" in the XXI Entrepreneur Awards, by La Caixa & ENISA
* "Sapere Aude" for Innovation and Sustainability 2010 Award by Avila Town Council
* "Commitment to Innovation 2010" award by CONFAE
* "Best Start-up 2010" in the Ist Castile & Leon Awards for Innovation
* "Award for Market Feasibility" in the European Solar Decathlon 2010 for the SML HOUSE
* Finalist for innovation in the "European Venture Contest 2010"
* "European Commission Official Partner 2010" for "Sustainable Energy for Europe" for the San Anton
Market Project
* "Company with the Greatest Growth Potential in Europe 2010" in the Europe Entrepreneurial Awards
* XI "Young Entrepreneur Award 2010"
7. The exponential growth in world population necessitates to create a NEW MODEL OF CLEAN ENERGY and a sensible use of alternate RENEWABLE ENERGIES.
Buildings alone consume over 40 % of power generated, and additionally 15 % energy is lost in distribution to the building. So it is necessary to save energy, efficiently use
power and also generate power at the site itself.
The term building-integrated photovoltaics (BIPV) refers to the concept of integrating photovoltaic elements into the building envelope, establishing a symbiotic
relationship between the architectural design, structural and multi functional properties of the building materials and renewable micro energy generation.
The ratio of façade surface area to roof surface area increases along with the building height. In addition, the available roof area is often reduced due to the installation
of facilities and superstructures, which means that BIPV façades are of particular value in highdensity urban centres.
It is important to consider the potential cost benefits of off setting the use of traditional building materials (e.g., asphalt shingles) in the areas where BIPV is installed.
Also BIPV installations in the Curtain Wall, Facade, Skylights and other Vision Light Transmission (VLT) areas, offers 30 to 40 % heat reduction, approx. 10 % lighting
energy reduction, and also generates power from these areas.
Why BIPV
8. Crystalline BIPV - Canopy - 600 sq mtrs
Mohammed VI University, Moracco
626 Wp, 152 nos, 95 kWp
17. Photovoltaic glass with crystalline silicon technology is made
up of an external layer of glass and an internal layer of glass
or other TEDLAR materials, there being crystalline cells
laminated between both layers, according to the size of the
glass. The power will be defined by the number of cells and
their technology.
Thus, there are monocrystalline silicon cells (formed from a
single silicon crystal) and polycrystalline cells (formed by
different macrocrystals that are formed from different
crystalline seeds in vertical growth ovens). These cells can in
turn be either 6” or 5”.
Crystalline glass usually has power values of around 100 –
170 Wp per square meter, depending on the technology, the
separation between the cells and efficiency of these cells.
In constructive solutions where electricity generation takes
precedence over aesthetic appearance, such as pergolas, brise
soleils or canopies, it is usual to choose crystalline silicon
technology.
Crystalline BIPV Modules
Advantages of Crystalline Cell based BIPV :
* Applicable to Rooftop, Canopy, Power Farms &
Spandral Areas
* Higher Nominal Power per sq mtrs
* Lesser installation area required for equal power
(compared to thin film)
* Higher Efficiency - 15 to 17 %
* Easier Installation - electrically & structurally
* Proven Technology
* Easier to Maintain & Service
* Wide range of Size & Power range
26. Design Challenges
in BIPV Solar Modules
in Buildings
* Installation of BIPV in the South, North & West
orientation of buildings offers more power generation -
for Crystalline BIPV Panels. East is the highest power
generation direction for Amorphous Silicon BIPV
Modules.
* Amorphous Silicon based - partial transparency - BIPV
for vertical tilt areas like Facade, Curtain Wall, and
other areas like Skylight
* Crystalline BIPV - partial transparency - BIPV for
horizontal areas like Rooftop, Braise-Soleil, Pergoals,
Canopy, Car-Park, Swimming Pool-Side Canopies etc
* even roofs, skylights, canopy - will need NEWER
structural design
* NO NEED for sheeted structure on the rooftops -
substitute with BIPV (glass + glass) which can power
the entire area (& more)
* SPANDRAL AREAS too can be thought of power
generating area - by not putting ACP or other cladding
materials (just because they are cheaper)
* possibility of TILT in some areas on elevation - to
give 30 % MORE POWER generation with the
same initial costs
* vision area can give Natural Light, Protection from
Thermal, and a good amount of Electric power
generation
* can have COLOURED interiors and TINTED
exteriors
* only building material which gives 40 %
ACCELERATED DEPRECIATION and 33 %
SAVINGS IN CORPORATE TAX
27. Increase in
Building Real Estate Value,
Resale Value, Occupany Rate
In the real estate sector, energy performance may be a new
asset valuation tool. This is being aided by mandatory
certification and disclosure policies in several large cities in
the United States, in Australia, and in Europe, along with
voluntary programs like ENERGY STAR and LEED,
Australia’s Green Star and NABERS ratings, and Energy
Performance Certificates (EPC) in Europe. The 2012 GRESB
survey from the Global Real Estate Sustainability
Benchmark offers early evidence that performance
certification is an emerging trend in evaluating a real estate
portfolio.
For a number of years, advocates of green buildings have
stated that efficient, green buildings not only have lower
energy bills, but their design and features improve the
occupants’ experience and worker productivity. And by
extension, these green attributes should increase the value of
a building in the real estate market.
In the 2012 global Energy Efficiency indicator (EEI) survey
conducted by the Johnson Controls Institute for Building
Efficiency, 44 percent of building executives (versus 35
percent in 2011) said their organizations planned to pursue
voluntary green building certifications for existing buildings
in the next year. A good percentage of respondents said they
had at least one certified green building. There, some
buildings are experiencing “brown discounts” for poor energy
efficiency ratings.
Buildings with NABERS ratings of less than 3 stars
reported significant discounts in value 10% in Sydney and
13% in Canberra. (Newel 2011) These findings may have
global implications and may be indicative of the future of
the real estate market where the value of buildings will be
discounted for low energy performance rating.
A report published by the RICS, concluded that a clear “link
is beginning to emerge between the market value of a
building and its green features and related performance”
(RICS, 2005, p.3). Studies done by Miller and Fuerst and
McAllister found that green buildings had a positive impact
on rents and values. Though there were variances in the
extent of the relationship, a positive effect of the Energy Star
certification was common among the three. They found that
the average LEED impact on sales price per square foot is
9.94%, while the Energy Star impact on sale price is 5.76%.
Energy Star certification achieved more than 3% rental per
square foot with increment selling prices as high as 16 per
cent. The results suggested a premium for Energy Star
buildings, but not LEED certified buildings . Fuerst and
McAllister (2007) analysed transaction prices for 292 Energy
Star and 30 LEED certified buildings. A 10% price
premium was found for Energy Star and 31% price premium
for LEED certified buildings as compared to non-certified
buildings within the vicinity.
In Singapore, Deng analysed the economic returns of
energyefficient investments in the local housing market. The
study looked at 62,434 transactions of Green Mark certified
and noncertified residential units, using a 2-stage design in
its empirical analysis. The research concluded that the
Green Mark price premium commanded about a 6%
premium over comparable noncertified dwellings, with
higher premiums for higher certifications, i.e. up to 14%
premium for a Green Mark Platinum certification.
* Increased resale value (2-17%)
* Increased rental rates (5.8-35%)
* Higher occupancy rates (0.9-18%)
* Lower operating expenses (30%)
* Higher net operating income (5.9%)
* Lower capitalization rates (50-55 basis
points)
* Productivity gains (4.8%)
28. The expression GREEN building and SUSTAINABLE
building are often used interchangeably, though these terms
can have different meanings too.
Green buildings can be expected to consume less energy
and thus consequently generate lower CO2 emissions.
The definition of a Sustainable building, according to
Lutzkendorf and Lorenz (2007, p.60), “goes far beyond the
narrower concept of lowering a building’s energy
consumption”, as sustainable buildings are constructed
with a higher urban planning, creative, functional and
technical quality.
However, in this context ‘green building’ has been used and
can be defined as those which have low environmental
impact throughout the various phases of a buildings’ life
cycle, that is; in their design, construction and operation and
a building that offers health and well being for occupants
Environmental characteristics generally include resource
efficiency (water, energy), design and use of materials and
resources, indoor environmental quality and innovation etc.
Social factors would look at health and safety, including
compliance with legislation, occupant satisfaction and
productivity. A balance of economic, social performance
together with environmental protection factors should be
evaluated assessment of built assets.
In addition to environmental benefits it also places a strong
focus on health and productivity. Some of the common
attributes found to promote healthier working environments
include improved comfort and better ventilation,
significantly better lighting quality; i.e. more day lighting
and greater occupancy control over light levels, much lower
source emissions from building material etc. However it also
understood that the relationship between worker comfort,
productivity and building design is complicated.
Measuring the financial impact of greener more
comfortable buildings on the value of property would
be difficult. Incorporating green design into an
organisation’s building may also improve its image and
visibility and thus generate intangible benefits.
According to Wasiluk (2007), sustainable commercial
buildings have a competitive advantage over
conventional buildings and are able to attract higher
profile tenants, command above market rentals and
thus increase capital values. These findings have been
supported by Miller et al. (2008), who conclude that Energy
Star and LEED certified office buildings in the US
have a competitive advantage over their nonrated
counterparts.
Quatifying the Benefits Some links are beginning to emerge
between market value of a building, its sustainable features
and financial performance. This was based on case studies
in Australia that identify the economic value of certification
of sustainable buildings. The Green Building Council of
Australia (2008) reported that sustainable buildings in
Australia commanded 5% to 10% higher rents and had
higher relative investment return and asset values of 10%.
Key factors considered included the tenure, age of property,
location, size, Green Mark award rating and year of award
and energy consumption figures (before and after retrofit)
and capital expenditure for the retrofit project. The study
concluded that retrofitting can lead to an increase in the
property value of about 2%, with an average expected
savings in operating expenses of 10%.
Through extensive research, market studies and
industry reports in this area, it can be said that
there is a general consensus that sustainable
buildings: -
* are more energy efficient
* have lower operating and maintenance costs
* provides better comfort and well-being for
occupants
* are more marketable than conventional
buildings
* have lower risk potential
* reduced negative impact on the environment
Green Building
and
Sustainable Building
29. Studies have clearly demonstrated the nonenergy related
benefits of daylighting, in addition to energy savings.
The Wavelengths of Lights and the effects of Day Light on
the body has impact on building occupants psychologically
and physiologically. Different wavelengths or spectral
distributions of light have different effects on the human
body.
Most electrical light sources lack the spectral distribution
needed for complete biological functions, although full
spectrum fluorescent lighting does come close to that of
natural light. Cool white fluorescent lights, Incandescent
lamps, energy-efficient fluorescent lighting (Except LED)
lack the blue portion of the color spectrum, which is the most
important part for humans and is best provided by natural
light.
The majority of humans prefer a daylit environment because
sunlight consists of a balanced spectrum of color, with its
energy peaking slightly in the bluegreen area of the visible
spectrum, natural light also has the highest levels of light
needed for biological functions.
The photobiologic action spectra of greatest importance to
humans ranges from 290 to 770 nanometers. Skin reddening
and vitamin D synthesis occurs in the range of 290 to 315
nanometers. Tanning or pigmentation of the skin and
reduction of dental occurs in response to band light in the
band from280 to 400 nanometers.
Vision is the most sensitive to light in the 500- to 650-
nanometer range (yellowgreen light). Billirubin degradation
occurs in response to light in the 400- to 500-nanometer
range (blue light). The human eye functions at its best when
it receives the full-spectrum of light provided by daylight.
Many fluorescent lights are concentrated in the yellow-green
portion of the spectrum to obtain the most lumens per watt;
this unbalanced, narrow spectrum limits the blue in the
source, which leads to improper functioning of the eye.
Therefore, the superior spectral content of natural light
makes it the best light for the eye Both the central nervous
system and the neuroendocrine hormonal system are inf
luenced by the powerful stimulus of light - claimed that
light has biological effects important to health and that
some of these effects could be measured in a laboratory. The
effects of light fall into two categories: those modifying
individual endocrine, hormone, and metabolic state by light
reaching the retina and those resulting from light on the
skin. Some effects of light on the skin are vitamin D
production, skin tanning, and dissociation of bilirubin.
Other studies have also supported the possibility of
physiological benefits from light. Light falling on the retina
and being transmitted to the hypothalamus controls our
circadian rhythms, which are responsible for synchronizing
our internal clock to 24 hours. The effects of light on
circadian rhythms can be studied using physiological
variables such as the daily patterns of core body temperature,
levels of melatonin, urine production, cortex activity, and
alertness.
Occupants in daylit and full-spectrum office buildings
reported an increase in general well being. Specific benefits
in these types of office environments include better health,
reduced absenteeism, increased productivity, financial
savings, and preference of workers. Benefits to the office
worker are so great that many countries in Europe require
that workers be within 27 feet of a window.
Now, Daylighting is often integrated into a building as
an architectural statement and for energy savings.
However, benefits from daylighting, extend beyond
architecture and energy on the psychological and
physiological aspects the occupants of the building.
The comforting space and connect to the environment
provide benefits to occupants as significantly as the
energy savings to building owners and managers.
Benefits of Natural Lighting
and
Hazards of Artificial Lighting
30. Architecture is a design process which involves planning,
designing, creating, erecting, constructing and executing
construction of various types of buildings that are
functionally efficient, economically viable and
aesthetically pleasing.
The two most important factors in the design of a
building are Form and Function. Functionality is the
most important aspect of building design. The other aspect
is building form or aesthetics.
Aesthetics is the branch of philosophy that deals with the
nature and expression of beauty.
Aesthetics is one of the major principle of Architecture
that students and professionals alike have to worship. It
concerns beauty or appreciation of beauty. In other words,
it is a philosophy behind a pleasing appearance. A set of
principles followed by the Architectural designers or any
designers for that matter for the evolution of the end
product that is aesthetically pleasing to the eye, is called
aesthetics. It is directly influenced by the artistic taste of
an individual.
When a building is designed, the aesthetic aspects can be
satisfied using elements such as sloped roof, decorative
columns, roofs for window elements, and semicircular
and segmental arches. Color is an element of our visual
perception that is related to how our eyes perceive light.
We differentiate these perceptions and name them red,
blue, yellow, etc.
Architects use color in the choice of materials used to construct
a building. These color choices can be quite subtle, such as
using a warm, yellow toned concrete instead of a cold gray
base, or using a brownish brick instead of the traditional red.
However, the architect must consider the color effect of every
element of a building’s construction, from the earthy colors of
primary construction materials like wood, stone, brick and
marble, to the expansive variety of colors available for paint,
doors, windows, siding, and trim.
Light and dark are relative perceptions of light. Architects use
the concept of light and dark as they create visual interest on
a building by choosing shapes that create a sensation of depth.
When some shapes stick out, they leave others in shadow.
Narrow openings often appear dark, as in a tunnel, and
broad, flat spaces look light.
Materials can be used to vary the light quality of a building.
For instance, a band of tinted windows gives the illusion of a
dark space wrapping around a building.
Space is the relative position of one three-dimensional object to
another. Space is one of the most important considerations an
architect must think about while designing a building,
because the sizes of rooms and hallways, the height of ceilings
and the ease of entering and exiting each living area must
carefully match the function of the building.
Architects chose dimensions of rooms to match the number of
people who will occupy the space and the amount of activity
that will occur in it. To make a building more interesting,
architects will experiment with aesthetic qualities of space by
varying the width and height of rooms through which people
will move. Architects also speak of space as the amount of
land that will be occupied by a building on a site. The
remaining area is called open space.
In much of contemporary architecture, the notion of expressive
exteriors becomes tempered by new materials such as: high
performing glass that conveys literal openness in an age of
digital communication via the Internet or alternative roofing
technologies that can extend the livable areas to the top of
buildings proving a green space that can hold storm water
and offer new amenities.
Aesthetics
the art of
Beautifying
31. Onyx Solar have developed a unique construction
material that combines active and passive properties in
a single element. This is why the main characteristic that
defines ONYX Solar’s photovoltaic glass its
MULTIFUNCTIONALITY. There is no direct exclusive
correlation between a type of glass and an integration, since
this depends on many factors.
Onyx Solar photovoltaic glass behaves like any other glass
used in construction. The big difference is the ability to
generate power. Have a wide range of glass formats,
sizes, thicknesses suitable for every need, depending on
the impact resistance values or any other values that are
necesary in order to comply with local regulations, the
project’s technical requirements, etc.
Colour
In line with the customisation criteria that make ONYX
unique and through the use of colored PVB sheets, Onyx
Solar is able to offer a full range of color options that will
vary depending on the transparency degree. It is a product
patented by Onyx Solar and This range of colors does not
prevent the glass from maintaining its photovoltaic or
luminous properties, which is a clear example of Onyx
Solar’s multi-functionality.
The BIPV constructive solutions recommended for the
incorporation of color into the glass are skylights and
curtain walls, since the color goes onto the inner player of
the glass and will be seen in their exact tone from the
inside. However, the tone will be much darker from the
outside of the building due to the natural color of the
amorphous silicon.
Amorphous Silicon (Thin Film) The Thin Film or
amorphous silicon technology which is formed by depositing
different kinds of treated silicon onto a glass substratum,
followed by laser etching to establish the edges of the cells
(and, if applicable, of the transparency). In constructive
solutions where the aesthetic appearance and the
transparency and/or homogeneity of the glass take
precedence, such as curtain wall or skylight, it is usual to
select amorphous silicon technology.
Transparency
One of the most important characteristics of Onyx Solar’s
photovoltaic glass is its range of transparencies. It
manufactures photovoltaic glass that enables the passage of
natural light into the interior of buildings and does not
reduce indoor habitability.
Onyx Solar recommends different transparency degrees
depending on the climate and geographical conditions of the
facility, as well as the location and tilt of the photovoltaic
glass in the building.
In glass with amorphous silicon technology, transparency is
achieved through the removal of amorphous silicon layers
using a laser etching process, in other words, part of the
silicon deposit is removed through a controlled process,
thereby gaining a degree of semi-transparency.
Logically, when transparent gaps are made in the glass
removing some of the active photovoltaic layers, the
generation is reduced in proportion to the degree of semi-
transparency achieved, therefore, a compromise must be
found between the desired passive properties and expected
active properties.
Advantages of A-Si (Thin Film)
* Greater Energy production (kWh) at the
same installed power (kWp)
* Low Temperature Coefficient. The yield of
A-Si PV glass module is better under
Higher Temperature than with Crystalline
PV Modules. (In Singapore, a 10 kWp - a
Crystalline Module glass gives around
11,000 to 12,000 kWh only, whereas A-Si
Module gives 12,400 to 14,000 kWh, with
the same 10 kWp System - at around 40
deg C)
* Better behavious in the presence of
SHADOWS
* Less Dependance on TILTS
* Enable a more AESTHETIC Integration
* Shorter amortization period
Amorphous Silicon Thin Film
54. The appearance of the amorphous silicon glass is
different from the exterior and the interior side of the
PV glass.
Viewed from the distance the exterior side is similar to
the TINTED GLASS, whereas from the interior, the
views outside are clear & unobstructed, which ever side
is brighter will be more visible from the opposite side.
Taking an example of an Office building with an
A-Si curtain-wall :
* you will have a clearer view of the outside from
the office during the daytime, when the light is
more on the exteriors than the interior whereas,
* during the night time, the opposite is true when
the office spaces are lit in the evening / night
and the exterior are lit low.
* Useful for Restaurent, Show rooms etc....