Page 917 - Basic Electrical Engineering

• Kaiga, Karnataka 220 × 3 660

• Kakrapur, Gujarat 220 × 2 440

• Kalpakkam, Tamil Nadu 220 × 2 440

• Narora, Uttar Pradesh 220 × 2 440

• Rawatbhata (near Kota), Rajasthan 100 × 1 200 × 1 220 × 2 740
• Tarapur, Maharastra 160 × 2 540 × 2 1400

In total, 4120 MW nuclear power is being generated. Over 3000 MW
generating capacity projects are under construction.

13.7 NON-CONVENTIONAL OR ALTERNATIVE GENERATING STATIONS

Generation of electricity from energy sources like solar energy, wind energy,
ocean wave energy, geo-thermal energy, etc. are called non-conventional

sources of energy.
As these are renewable sources of energy, efforts are being made to

generate more and more electricity from these resources. These are being
described in brief in the following sections.

13.7.1 Solar Electricity Generation

Sun’s heat energy is the readily available energy that can be used for heating
water, cooking food, pumping water, and for generation of electricity. The

energy received from the sun on earth is so much that someone calculated it
as equivalent to about 15,000 times the world’s annual energy requirement.

In India solar energy is available for 300 to 330 days a year, and hence
should be utilized to the full through two different ways, i.e., for heating

purpose and for generation of electricity. For generation of electricity solar
photovoltaic cells are used. Solar photovoltaic uses sun’s heat to produce
electricity for lighting, running pump motors, and running of electrical

appliances. Solar cell, or photovoltaic cell converts sunlight directly into
electricity.

Photovoltaic (PV) is the technical term for Solar electric. PV cells are
made of silicon. Silicon releases electrons when exposed to light. The amount