11. Renewable Product Comparison at 1kW System – Mariah is lowest price by far Phoenix Energy Windspire Propeller Based Photovoltaic (PV) Type Vertical Axis Wind Horizontal Axis Wind Solar Size 30 Ft Tall 57 Ft Tall 105 Sq Ft Noise < 44 [email_address] > 85 dB None Safety Low Speed Simple electronics High Speed Chem based Unit Price $4,995 $6,619 $5,500 Installation $1,000 $2,552 $5,674 Total Cost $5,995 $9,171 $11,174
12. Life Cost of Electricity Generated 1 kW system, no subsidies Phoenix Propeller PV Installed Cost $5,995 $9,129 $11,174 kWh Generated 50,000 50,000 35,680 Cost per kWh 12.0 ¢ 18.3 ¢ 31.3 ¢
20. Rotor Dynamics Texas A&M University Cantilever bearing system - Solution to first conical whirl mode
21. Power Curve Fig. 5.22 Power coefficient vs TSR of the three-bladed rotor without and with blade struts corrections Design guidance and real world expectations
![Phoenix Energy Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Introducing the Windspire® Wind to Power ~ Power to Inspire Wm. David Hamilton – President, Phoenix Energy Systems 972-814-3283 J. Matthew Hamilton – Vice President, Phoenix Energy Systems 512-246-9195](https://image.slidesharecdn.com/phoenixenergysystemsonlydavidandmattnoteam-090524173520-phpapp01/85/Phoenix-Energy-Systems-1-320.jpg)
![Renewable Energy Problems ,[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)