Energy efficiency -Ashwin Upadhyaya

What is Energy? Lifting an apple from the ground requires energy

What are the forms of energy? Mechanical Electrical Energy Gravitational

What is electricity? It is the same way a dynamo light switches on in a bicycle How does a bulb glow when you switch it on?

What is electricity How does a bulb glow when you switch it on? Huge turbines rotate at power stations to create electricity

How does electricity travel to your house?

In what ways do we generate electricity? Coal Hydro Wind

What happens when we waste electricity? When you leave a bulb on for 1 hour, you are responsible for burning approximately 30-40 gms of coal at the power plant

Activity 1 Time : 20 minutes Make groups of 5 Each group should make a list of 25 different electrical items used in houses (example: bulb, tv etc)

Time : 20 minutes

Make groups of 5

Each group should make a list of 25 different electrical items used in houses (example: bulb, tv etc)

How do we save electricity? Fridge insulation Defrost regularly Keep the back surface clean Solar Water heater Switch off lights always X √ Use CFLs, not incandescent bulbs Remove mobile phones & adapters when not charging

Planting trees to save energy

Saving other forms of energy Inform corporation if a street light glows all day Save water Fill vehicle tyres with air at least once every month, save fuel Walk where it is possible, Save fuel Send letters to government to use energy efficient lights

Activity 2 Home activity Make a table as shown below and bring it to the next class Each group should mention 10 places where we waste electricity Each group should suggest 3 ideas to save electricity (which are not shown in the slides) Geyser – 1000W Bulb – 40W Bathroom Fan – 100W Tubelight – 26W Room 2 Fan – 100W Tubelight – 40W Room 1 Fan – 100W TV – 200W Bulbs – 60W 5hours/day Hall Mixer – 400W 15min/day Bulb – 60W 3hours/day Kitchen

Home activity

Make a table as shown below and bring it to the next class

Each group should mention 10 places where we waste electricity

Each group should suggest 3 ideas to save electricity (which are not shown in the slides)