Integrating Organic Photovoltaics and Tension Membrane Fabrics
-
Upload
california-center-for-sustainable-energy -
Category
Technology
-
view
1.725 -
download
1
description
Transcript of Integrating Organic Photovoltaics and Tension Membrane Fabrics
IntegratingOrganic Photovoltaics
&Tension Membrane Fabrics
Diego VillamizarPrincipalSKYShades of Southern California
Overview
• Basics
• Applications
• Project Photos
• Solar Initiatives
SKYShades specializes in the design, engineering and installation of high-quality tension membrane fabric structures
We also offer exclusive SOLAR ROOFING FABRICS through our Integrated Building Organic Photovoltaic (OPV) Systems
About SKYShades
Applications
US Tensile BeginningsPTFE Fiberglass and NASA (1969)
First commercial projects (1972) Lightweight long-span roofs (Silver Dome - 1975)
Basics
Conventional structures:• Dependent on gravity and rigidity• Walls and framing working in compression
Tensile structures:• Anti-clastic (bi-axial) forms• Membrane and cables working in tension
Thus, the fifth building material:• Wood, stone, metal, glass, and . . . membrane
Sustainability• Green Building Attributes - LEED
Leadership in Energy and Environmental Design Lightweight materials - cuts down on support structure requirements Allows natural lighting while reflecting radiant heat – reducing energy requirements
and utility costs
• Efficient Engineering• Daylighting• Lighter Weight• Fabric recycling • Steel is recycled• New solar applications
Design Examples
Wolf Creek
Lake Eola
1,100 m² 11,840sqft PVC
Thowal Prince Palace Jeddah, Saudi Arabia
Raptis PlazaBrisbane, Australia
Atrium shade sails to reduce solar and heat glare in existing glazed atriums
PVC/Polyester fabric (1,500 m2 – 16,145sqft)
Edo Tokyo Museum
500 m² PTFE/Glass fabric
10.000 m² - Silicon/Glass fabric
Alexandra Palace
Sea World Australia
Brisbane “The Gabba”
Organic Photovoltaic Panels
OPV Applications
SKYShades Solarbrella
SKYShades Solarbrella
Solarbrella Specifications
General:• 13’ x 13’ coverage• Standard color is white /
additional colors available• 3 year warranty• PVC fabric• Aluminum body/pole• 4 power outlets (DC) with volt
meter• Power Plastic organic
photovoltaic panels• Battery bank in base of unit
Will generate enough clean energy to power 4 laptops for 9 hours
CNN Video - Solarbrellas:http://www.skyshades.com.au/news_and_media/media_releases/article/35/index.htm
OPV Car Port
OPV Car Port Structures
UCSD Canyon View Pool
Benefits of 3rd generation Solar Technology (OPV)
Versus Traditional Solar Panels
Environmentally
• Requires a huge amount of energy input
• Toxic gases and hazardous chemicals such as arsenic, cadmium, and titanium
• Larger carbon footprint; high disposal costs
Traditional PV
• Panels use the lowest carbon footprint of all solar panels and they are biodegradable
• Pose no threat to the environment
(OPV)
Economically
• Expensive due to the high production costs and the high price of silicon
• Extremely heavy
• Roofing systems require reinforcing to carry the extra load
Traditional PV
• Roll-to-roll manufacturing process
• Much lighter
• Eliminates extra load requirements
(OPV)
Efficiency
• Can never be more efficient than on the first day of installation
• Degrade at the rate of ~1% per year
Traditional PV
• OPV panels bonded to membrane
• Simple replacement when energy demands increase
• May be used effectively
indoors and outdoors
(OPV)
FAQs
How efficient are OPV panels?
• Currently, OPV panels have ~7% efficiency, with the theoretical limit in the region of 50-60%
• Since OPV panels generate energy from any light, they generate electricity from daybreak to sunset
FAQsWhat are the comparative costs between conventional PV and Power Plastic?
• OPV utilizes only ink-based materials on a plastic platform (vs. high cost traditional PV)
• OPV printing press manufacturing process is simpler and more cost effective
• Conventional panels repaid over 10-17 years (based on local electricity costs)
• Power Plastic expected to have 4-8 year payback period based on available lease options