Chapter 12

Electricity from Solar, Wind and Hydro 387

A. Introduction 387

B. Solar Cell Principles 390

C. Cell Manufacture 393

Solid State Components: Diodes

Semiconductors

Charge and Conduction

Covalent Bonding

Conduction

Relationship Between Conduction and Temperature

Doping

N-Type Materials

P-Type Materials

The PN Junction

D. Photovoltaic Systems and Economics 394

The Sun

E. Wind Energy 400

F. Horsepower 413

G. Solar Thermal Electric Facilities 417

H. Summary 420