Presentation on theme: "…. ELECTRICITY & RENEWABLE RESOURCES Part 1: Electricity and Renewable Energy Most electricity sources have three main parts –The fuel source –The."— Presentation transcript:
ELECTRICITY & RENEWABLE RESOURCES
Part 1: Electricity and Renewable Energy Most electricity sources have three main parts –The fuel source –The turbine –The generator
Part 1: Electricity and Renewable Energy A simple generator Larger generators use the same principle * Pictures from * *
Part 1: Electricity and Renewable Energy COAL, OIL OR GAS –Fuel burnt to turn water to steam –Steam turns turbine –Turbine turns generator *
Part 1: Electricity and Renewable Energy HYDRO-ELECTRIC POWER –Lots of water dropped through large wheel –Wheel turns generator *
Part 1: Electricity and Renewable Energy NUCLEAR POWER –Fuel of radioactive uranium –Uranium atoms are split, creating radiation and heat –Heat used to make steam *
Part 1: Electricity and Renewable Energy BIOMASS POWER –Burn trees, shrubs, manure, rubbish; or burn gases from these –Creates steam *
Part 1: Electricity and Renewable Energy GEOTHERMAL –Uses steam from hot water reservoirs deep below the Earth *
Part 1: Electricity and Renewable Energy SOLAR POWER –Uses special panels called “photovoltaic cells” –Cells produce electricity when sunlight falls on them *
Part 1: Electricity and Renewable Energy TIDAL AND WIND TURBINES –Wind or ocean tides rotate blades which turn generator * *
Part 1: Electricity and Renewable Energy Electricity generation is a major CO2 emissions culprit Some methods produce more than others Some produce no CO2 at all
Part 1: Electricity and Renewable Energy RENEWABLE –Fuel won’t run out –Most don’t produce greenhouse gases NON-RENEWABLE –Fuel will run out –Most produce greenhouse gases
WELCOME TO THE UNITED NATIONS CLIMATE CHANGE ASSEMBLY
SAY ANY LINE! Nuclear Power! Oil Power! Coal Power! Coal Power! Coal Power! Solar Power! Solar Power! Hydro Power! Hydro Power! Biomass Power! Wind Power!
WHICH ONE IS BEST?
Case Study from an EWB Project – Sustainable Energy Options for the Uluru Children’s Home (that’s Uluru in India, not Australia!!)
Uluru Children’s Home – Project Introduction AIMS: –Reliability of Power Supply –Undertake Energy Audit –Identify Sustainable Energy Options
Information gathering Overall Energy breakdown (MJ/yr)
UCH Cooking Gas Options
UCH - Sustainable Cooking Options Community Solar Dish Cooker
UCH - Sustainable Cooking Options Biogas system Cooking gas can be produced from food scraps, cow dung and other agro-waste
UCH Electricity options
UCH - Electricity breakdown 36kWh/day average electricity demand36kWh/day average electricity demand Cost of electricity per year Rs. 58,072 or AUS $1760Cost of electricity per year Rs. 58,072 or AUS $1760
Energy Efficiency Options Replace remaining incandescent bulbs with energy efficient fluorescent lights 70% reduction in lights left on at night Reduce water pumping by fixing leaking bore water tank Replace the fridge seal in UCH kitchen
Sustainable Electricity Options Two power sources were suggested, to power electricity use at the Uluru Childrens’ Home: Solar Wind
UCH Transport options
Transport use breakdown
Transport -Diesel & Petrol reduction options Children bike to school Coordinate activities to reduce trips Purchase an auto-rickshaw
The Assignment: Calculate your carbon footprint! Calculate your carbon footprint! –Go to –Do the quiz –Record your footprint and bring it to the next climate change session –Set a new goal for your future carbon footprint
The Assignment: Calculate your carbon footprint! Due date for the assignment is the next and final climate change presentation. Some of you may be asked to show the class what you’ve done so be thorough! There may be prizes!
Next time… We will discuss the findings of your assignment The Great Global Warming Quiz Game Show More tips for how you can help combat climate change
Thanks for your attention! Remember to turn off electrical appliances when they aren’t being used, walk or ride a bike instead and be emissions aware!