Advantages And Disadvantages Of Solar Energy

CHAPTER 1

INTRODUCTION

1.1 Introduction

The use solar energy in our life in different ways. Solar energy can be used for heating as well as cooling purposes the solar energy for cooling can be either provide refrigeration for food preservation & comfort cooling.

We can store solar energy for air conditioning in two different ways like thermally and in storage batteries with the help of photo voltaic panels. In photovoltaic system we use photo voltaic panels to convert the solar radiations in DC electricity. Photo voltaic panels have two main advantages. First it can use as utility grid for backup power in cloudy days. Second are they can use as conventionally electrically driven air conditioning system which is widely available and inexpensive.

In there are three major disadvantages attributes of the photovoltaic system that are First is electricity from the solar cells are very expensive because of the high cost of the solar panels. Second are space needed for required air conditioning system is large. Third is the panels provides no energy storage that creates problem in night and cloudy days. There is a mismatch between supply of needed and power of demand. The solar panels supplies peak load at noon & the demand of the air conditioning at peak is after several hours. This is also a negative point for the system. This point greatly reduces the value of the system in reducing peak power demand to the utility.

It can use batteries as the storage but they are