Jason HegedusGreg MikusJosh MillerEvan Schwartz12/10/2008

Problem Statement

Conceptualization: assessment of customer needs and the resulting weight of importance

Preliminary Design: brainstorming, sketches, re-design concepts

Detailed Design: CAD drawings, detailed sketches and dimensions

Production: bill of materials, engineering analysis

BIPV is the future of solar electricity and buildings. Rather than having separate elements for electricity production and building envelope (the roof, walls, windows, and doors), BIPV reduces cost and improves designer creativity by combining functions. Although the Solar D building envelope is still being conceived, this project can provide strategic information and support for the architectural design team. Emphasis in this project is on a thorough review of the literature and characterization of the kinds of BIPV systems that have already been developed, followed by the creation of new combinations or radically new ideas. Physical models, CAD drawings, wiring details, and performance analysis are all important aspects of this project.

(from SEDTAPP website)

An effective BIPV system combines functional aspects of architecture with energy collection. BIPV systems primarily rely on the solar power. To accurately design a BIPV system, our team must use CAD to draft a model of the house, and create in it a BIPV system. The focuses of our project are to create a design that is aesthetically pleasing. The second need is to make a final product which is efficient in collecting light from the sun, which will reduce (if not eliminate) the use of external electricity. The third and final aspect of the customer needs is to make the design cost efficient and easy to produce.

Aesthetically pleasingEfficientCreativeInnovativeProperty AlignedCost-efficientEasy to produceSuitable for existing “Solar D” house

•Solar panels Roof Siding Overhangs/Awnings Shutters Lawn Gnomes

•Solar capacitors Basement

•Solar water heaters Along siding Along gutters

An awning over the porch be built• Optimization of solar collection• The inclination of the house does not

accommodate the direction of the sun during its most brilliant stages

The gutter system contains panels which collect sun and transport water.• Convenient and necessary

location• Dual-purposed• Makes direct contact with

the sun over a large surface area during its most brilliant stages

• Connected to the house, so wiring can be easily managed.

Solar lawn gnomes (and other lawn accessories)• Can be placed in

open space and re-routed to areas outside the house

• Could be self powered (i.e. lamp post)

• Very radical

FUNCTION ART

Shingle Panels Bracket Rectangular frame elements

Rail/Tracks

Systems 5497587

Solar Cell 4040867 4336413

Mounting 6959517

Framing System 7012188

Module Positioning 7260918

Function

Shingle Panels Bracket Rectangular Frame Elements

Rail/Tracks

Systems 5497587

Solar Cells 4040867

4336413

Mounting 6959517

Framing System 7012188

Module Positioning

7260918

Cost Aesthetics Efficiency Lifespan Total WeightCost 1 3 1/4 1 5.25 .198Aesthetics 1/3 1 1/6 ¼ 1.75 .066Efficiency 4 6 1 2 13 .491Lifespan 1 4 1/2 1 6.5 .245

Cost Aesthetics Efficiency Lifespan Value RankWeights .198 .066 .491 .245Awning B A S E 0 2Pillars -1 0 0 1 0.047 1Gutter -1 -1 -1 -1 -1.000 5Walkway -1 1 0 0 -0.132 3Lawn Gnome 0 1 -1 0 -0.425 4

Cost Aesthetics Efficiency Lifespan Value RankWeights .198 .066 .491 .245Awning 1 0 1 1 0.934 1Pillars 0 0 0 1 0.245 3Gutter -1 -1 0 -1 -0.509 5Walkway B A S E 0 4Lawn Gnome 0 1 0 1 0.311 2

Cost Aesthetics Efficiency Lifespan Value RankWeights .198 .066 .491 .245Awning 1 0 1 1 0.934 1Pillars 1 0 0 1 0.443 2Gutter 0 -1 -1 -1 -0.802 5Walkway 0 0 0 -1 -0.245 4Lawn Gnome B A S E 0 3

Cost Aesthetics Efficiency Lifespan Value RankWeights .198 .066 .491 .245Awning 1 0 1 0 0.689 1Pillars B A S E 0 3Gutter -1 0 0 -1 -0.443 5Walkway 0 1 0 0 0.066 2Lawn Gnome -1 1 0 -1 -0.179 4

Cost Aesthetics Efficiency Lifespan Value RankWeights .198 .066 .491 .245Awning 1 1 1 1 1.000 1Pillars 1 1 0 1 0.509 2Gutter B A S E 0 5Walkway 0 0 1 0 0.491 3Lawn Gnome 1 1 0 0 0.264 4

Back-Contact Silicon PV Panels• All electrical components on back of cell –

leaves more exposure to the sun

Microinverters• All BIPV panels produce DC current – we

need AC• A more compact, cost effective, and

inexpensive way to produce AC

Light-Concentrating PV Panels• Uses lens technology to concentrate

sunlight onto panels• Increases power output to the equivalent of

326 suns

Thin Film Panels• Silicon is expensive• Other materials are also expensive, but

require much less material and are thus less costly.

Solar Thermal Storage• AKA “Solar Capacitors”• Instead of selling electricity when you no

longer need it anymore, you can store it• Still early on in research

Item Cost

2.28 kW Solar System $14,257.57

Lawn Gnomes 4 x $15 = $60Awning material and Assembly

$3,000 est

Total (including tax rebates)

$10,160 to $13,040

Our decision is to go with a complete system from Alter Systems.

The cost of an entire system is currently $14,257.57.

The final cost will range from $7,100 to $9,980 including tax credits and incentives.

http://www.altersystems.com/catalog/228-kw-gridtied-solar-system-with-evergreen-190-watt-solar-panels-and-fronius-ig-2000-p-1702.html

We as the united team of America feel that we have successfully designed a BIPV System which effectively accomplished our main goals:

• Aesthetically appealing• Reduced external electricity• Cost effective• Easy to produce

We were able to incorporate our ideas and concepts into an appealing, multi-functional, green house.