1. PDR: 2/21/08 Pinwheel Technologies (C3) Heather Blaha Matt Fuxa Joey King Michael McConnell Domenic Tassoni

2. Action Items Decide on Turbine Material Decide on Turbine Material Likely Al alloy Likely Al alloy Lightweight & Inexpensive Lightweight & Inexpensive Rigid, Durable, & Shapable Rigid, Durable, & Shapable Investigate Circuitry Investigate Circuitry Possibility of high complexity Possibility of high complexity Black Box? Black Box? Create Bill of Materials Create Bill of Materials Begin CAD Model Begin CAD Model Image: www.xantrex.com

3. Action Items Bill of Materials: Bill of Materials: Battery Battery Generator Generator Microcontroller Microcontroller LCD LCD Drive Shaft Drive Shaft Shaft Bearing Shaft Bearing Plastic for base Plastic for base Outlet / Light Bulb Outlet / Light Bulb Aluminum?-Fins/Blades Fin Support Structure Stakes Gearing/Chain Transmission Shaft Pin Sandwich wood/plastic Hardware

4. Action Items

5. Current Status Finishing Trade Studies Finishing Trade Studies Turbine Blades Turbine Blades Drive Shafts Drive Shafts Product Dimensions Product Dimensions Electronics/Battery Electronics/Battery On-schedule - No “Show Stoppers” On-schedule - No “Show Stoppers”

6. Next Week’s Action Items Decide what prototype will demonstrate Decide what prototype will demonstrate Physical Properties / Embedded Intelligence Physical Properties / Embedded Intelligence Group meetings to discuss: Group meetings to discuss: Which constraints we are capable of satisfying Which constraints we are capable of satisfying What novel solutions we want to showcase What novel solutions we want to showcase Dimension Turbine Geometry Dimension Turbine Geometry Height and Diameter Height and Diameter Based on the results of trade studies Based on the results of trade studies

7. Questions? Questions?