Topics or ideas

Below is some inspiration and ideas for your entry - or do you own research and find something that you like best!

HYDRO-POWER

Hydro-electricity is generated by using the energy created by falling water. When water travels down the tunnels into the power station, the potential (stored) energy changes to Kinetic energy - the energy of motion. In a hydro-power station, the water is directed through a turbine which drives the generator, usually mounted on a vertical shaft above the turbine.

Electricity is generated by rotating a magnet inside a wire coil. In a power station, this process is maximised by an electromagnet or ‘rotor’, spinning inside the fixed coils or ‘stator; of the generator. Next, the generated electricity is boosted by transformers. Then transmission lines carry it over long distances to centres to centres that distribute it to homes, schools, hospitals, factories, shops, and offices.

Do your own research but you can start here

SNOWY 2.0

Snowy 2.0 will act like a giant battery, storing water which can be used as energy at times of high demand. Pumped hydro operates like a conventional hydroelectric scheme; in periods of high demand, electricity is generated by releasing water from an upper reservoir and into a lower reservoir. However, instead of releasing the water after energy has been generated, a pumped hydro scheme 'recycles' or pumps water back to the upper reservoir during times of low energy demand, so it can be used again.

Find out more here - Snowy 2.0

SOLAR POWER

Solar energy is energy created by the heat and light of the sun. Solar power is produced when this energy is converted into electricity or used to heat air, water, or other substances. There are two main types of solar energy technology:

  • Solar Photovoltaic (‘photo’ means ‘light’ and ‘voltaic’ means ‘electricity’): This technology converts sunlight directly into electricity using photovoltaic (PV) cells. The solar PV cells are combined in panels, and are usually made from silicon. They can be put on rooftops, integrated into building designs and vehicles, or installed by the thousands across fields to create large-scale solar power plants.
  • Solar Thermal:This technology converts sunlight into thermal energy (or heat). It uses a field of mirrors to reflect sunlight onto a thermal receiver, which transfers the heat to a thermal energy storage system. Energy can then be released from storage as required, day and night.

Do your own research but you can start at ARENA's website here.

WIND ENERGY

Used for thousands of years, wind power is generated by converting the kinetic energy of the wind into electricity with wind turbines. Wind turbines convert the force of the wind into a torque (rotational force), which is then used to propel an electric generator to create electricity. Wind energy power stations (known as wind farms) commonly draw on the output of multiple wind turbines through a central connection point to the electricity grid. Across the world there are both on-shore (on land) and offshore (out to sea) wind energy projects.

Do your own research but you can start at ARENA’s website, here.

OCEAN ENERGY

Ocean energy is classified as:

  • Wave energy: This is generated by converting the energy within ocean waves (swells) into other forms of energy (currently only electricity). There are many different wave energy technologies being developed and trialled to convert wave energy into electricity.
  • Tidal energy: This is generated by harnessing the movement of tides. Tides contain both potential energy, related to the vertical fluctuations in sea level, as well as kinetic energy, related to the horizontal motion of the water.
  • Ocean thermal energy: This is generated by converting the temperature difference between the ocean’s surface water and deeper water into useful energy. Ocean thermal energy conversion (OTEC) plants may be land-based as well as floating or grazing. This has a range of applications for Australia, including electricity generation.

Do your own research but you can start at ARENA’s website, here.

GEOTHERMAL

Geothermal energy can be drawn from the hot water circulating among rocks below the earth’s surface, or by pumping cold water into the hot rocks and returning the heated water to the surface. This water can be released from the ground as steam or hot water, the high pressure steam can be used to drive turbines to produce electricity.

Do your own research but you can start at ARENA’s website, here.

OR FIND YOUR OWN!

There are so many ways to make energy, and we’re sure you will be able to discover a few of your own. Make sure your entry explains how the energy generation works.

Do your own research, have some fun and see what you come up with!