P3 energy resources Flashcards
examples of renewable energy
wave, tidal and geothermal
examples of non-renewable (finite) energy
oil, gas, coal and nuclear
how to wind turbines operate?
they use wind and a generator to generate electricity
advantages of wind turbines
wind is free, no CO2 released while producing electricity
disadvantages of wind turbines
expensive, not windy all the time (dependent on the weather), production releases CO2
how do hydroelectric power stations work
they use falling water to turn turbine blades, the turbines turn generators to generate electricity
advantages of hydroelectric power stations
rain is free, renewable, no CO2 released while producing electricity
disadvantages of hydroelectric power stations
expensive to build, doesn’t rain everywhere and all the time (dependent on the weather), production releases CO2, damage ecosystem
what is a biofuel
any fuel taken from living or recently living organisms (renewable and carbon-neutral)
how do wave energy converters work
they are machines that convert wave power into usable electrical energy
advantages of wave energy converter
cost efficient
disadvantages of wave energy converter
it is easier to work on land than it is in water
how does wind energy work
kinetic energy is converted into electrical energy as the movement of the turbines activates the generator
advantages of wind energy
free, renewable, unlimited
disadvantages of wind energy
not all areas are windy all the time (not reliable)
