3.2a Energy from wind LO’s:

Slides:

Advertisements

Similar presentations

12.4 Sustainable Sources of Electricity (Pages )

Advertisements

EE535: Renewable Energy: Systems, Technology & Economics Tidal (1)

Gabriella Badurek Sabrina Tan. Tides vs. Waves Alternate rising and falling of the sea Occurs twice in each lunar day Controlled by the moon Kinetic energy.

Growth that doesn’t cost the earth. Renewable Energy.

Earth’s Natural Resources

EE535: Renewable Energy: Systems, Technology & Economics

Renewable energy How can we also get energy from rubbish?

Hydro Electricity Generation What is Hydroelectricity?  the production of electrical power through the use of the gravitational force of falling.

Jl. What are Tidal Turbines? Tidal turbines are the latest water power TECNOLOGY used in tidal areas. They look like wind turbines that are lined together.

Hydro-Electric Power. Worldwide, Hydro-Electric Power plants produce about 24 percent of the world's electricity and supply more than 1 billion people.

Water Energy Energy – It’s Everywhere!. 2 Water Energy Solar energy creates the water cycle (see next slide). The water cycle is a renewable and sustainable.

WHAT IS IT?  It is a type of energy that takes advantage of the energy of the tides. There uses the difference of height between the tide and the low.

Renewable Forms of Energy (Also called Alternative Energy or Sustainable Energy)

Powered by Rock Dr Liam Herringshaw Earth's Energy Systems.

Convection currents (wind and ocean waves), W Evaporation of water, heating of water & ice W Photosynthesis on land and sea, 98.

♡ Hydroelectric Power ♡ Allyson Rosell, Danielle Pierre.

Green Energy Water. Definition of Green Energy Renewable energy is generally defined as energy that comes from resources which are naturally restocks.

Alternative Energy. Do Now 1/10/14 List as many things as you can that your household re-uses. Example: My husband reuses glass jars to hold his nails.

Power Stations Water power stations. Introduction  Hydroelectricity - electricity generated by hydropowerelectricityhydropower  Production of electrical.

Power for the People Learning objectives: Know different ways of producing electricity Know different ways of producing electricity Understand the difference.

For the instructor Energy part 2 covers alternative energy for generating electricity using hydro-power and stored energy start slide show with next slide.

Tidal Energy! Created by: Sarah Williams And Kevin Breen!

Renewable Forms of Energy (Also called Alternative Energy or Sustainable Energy)

Tidal Energy. Contents : Renewable Energy : Renewable energy is generally defined as energy that comes from resources which are naturally replenished.

Alternate Energy Sources Chapter 4, Section 2. Solar Energy Every second, the total energy Earth receives from the sun amounts to more than 10,000 times.

Power Generation

Sophia Puertas Maria Vila. Introduction The production of electrical power through flowing water Mountains, streams, rivers, clear lakes.

Lesson 9: Renewable Energy Sources.  MUST understand that some renewable sources of energy drive a turbine directly  SHOULD understand that while technology.

How would you define energy? Energy: a force of power that makes things happen.

4.2 – Alternate Energy Sources

SECTION 4.1 AND 4.2 Renewable Resources. Renewable Resource A resource that can be replenished over a fairly short time period such as months, years,

Energy Resources Oliver Headlam-Morley. Non-Renewable Energy Resources  These are forms of energy that can not be used again and mainly come from fossil.

PHYSICS – Energy Resources. LEARNING OBJECTIVES Energy resources Core Describe how electricity or other useful forms of energy may be obtained from:

Hydroelectric power Yul van der Stap. What is…  Hydroelectric power  power generated through the energy of flowing water.

 Hydroelectric power. Nuclear power Chain reaction Shoot neutron Uranium splits into lighter nuclei releasing heat and neutrons Neutrons hit other uranium.

Hydro-Electric Ashfield Direct Learning Zoe Taylor Ks4 Energy.

Renewable Energy.

Geothermal Energy – energy from the Earth

Natural Sciences Grade 7

3.1 Energy demands: (a) Generating electricity

Using Water to Create Power By: Ibrahim Kmaiha

Alternate energy sources are safe and most are renewable.

3.2 Energy from water LO’s:

Wind power Windmade want to build a wind farm.

Renewable energy Alternatives to fossil fuels.

3.4 Energy and the environment

Disadvantages Inefficient (only 30% efficiency).

Disadvantages Inefficient (only 30% efficiency).

D64 Electricity Generation

ENERGY SUSTAINABILITY

Energy Sources.

Energy Geography of Canada.

3.3b Geothermal power LO’s:

Common tidal energy system is a barrage system as shown in the following slide.

By Marisol Avelar Valeria Ledezma

Hydroelectric Damming of rivers and utilizing the potential energy store in the water. Eventually the stored water is released under pressure whereby.

Energy Sources.

Tidal (Wave) Power.

Energy Resources.

Warm up #19 What are some advantages and disadvantages of using renewable energy resources?

3.3a Energy from the sun LO’s:

Alternate energy sources are safe and most are renewable.

Energy, Power, and Climate Change 8.6 Hydroelectric Power

Renewable Energy Resources

Disadvantages Inefficient (only 30% efficiency).

Nonrenewable Resources

Alternate energy sources are safe and most are renewable.

Earth’s Natural Resources

Renewable Energy Resources

Presentation transcript:

3.2a Energy from wind LO’s: Describe the construction of a wind turbine. Describe how waves can be used to generate electricity. Describe the type of power station that uses water running down hill to generate electricity. Explain how tides can be used to generate electricity 4-6 4-6 4-6 6-8 Keywords Wind turbine hydroelectric Tidal scheme MW Cost per MW Starter Show clip 2 ‘How Wind Turbines Generate Electricity’ Demo the wind turbine ( techs to set up with big demo 0-5V meter) Main Activity Work through the PPT on wind turbines Build a model wind turbine ( connect blades to a small electric motor) Plenary Summarise adv and disadvantages of wind power PHYS FDN WSHEET ‘generating electricity with wind’ Homework: Kerboodle Follow up section of Wind and wave power

Q1a. Renewable energy resources can never be used up because they are always being replenished by natural processes. Q1b. i) Tidal power does not need energy from the sun ( gravitational attraction of Moon and sun create tides) Q1b. ii) Wind power does not need water, but it is unreliable.

Q2a (i) n x 2 MW = 2000 MW n = 2000 MW 2 MW n = 1000 Mountain areas Estuaries Coastline Hilly or coastal n km x 20 MW = 500 MW km n = 500 20 ANS = 25km = 25 Q2a (ii)

Q3a. A tidal power scheme is very expensive to build because: * construction occurs under water with strong tidal flows * materials must be highly resistant to corrosion and be very strong * the length of a tidal scheme is much longer than a hydroelectric dam. Q3b(i) The resource with the lowest total cost per MW is the hydroelectric scheme. (ii) Hydroelectic schemes need a large dam to collect a large reservoir of water. Steep sided valleys in mountain regions are often the most economical locations. A constant supply of water is also required.

Q4a. A pumped storage scheme: * pumps water up to a top reservoir when electricity is cheap ( at night) * water flows though turbines when electricity is required (at peak times). Q4b. Main benefit of a pumped storage scheme: * start up time is very rapid * energy is stored until required * renewable resource – provided pumps can be run from a renewable supply.