Review

of Renew

able Energy

System

s

Dr. S

.Rajakaruna

Sem

ester 2, 2007

Energy T

ypes

1.M

icro-hydro2.

Wind

3.F

uel Cells

4.S

olar

Com

parison

F

uel cells and Solar cells also have som

e similarities.

They both convert available form

of energy to electrical form

directly without going through an additional stage.

This m

ake them sim

pler to control.

M

icro-hydro and wind have som

e similarities. T

hey first convert available form

of energy to mechanical

form. T

hen use one of the rotating electrical machines

to convert mechanical pow

er to electrical form.

Induction machine is the preferred type in both m

icro-hydro and w

ind.Micro-H

ydro

Large >

30 MW

; 2MW