Recent content by gavmen

10% of NSW electricity is produced by the Snowy Mountains Hydro Electric Scheme http://www.greenpeace.org.au/climate/solutions/renewables/hydro.html mmm 10% = most so does 10% = your score = most? and an electrical power supply grid is SUPPLIED by the source i.e. hydro electricity...

wireless i said distance limitations because walls sap the energy out of the signal, but it can go around walls, and the power that you use in the transmitter of a headphones wireless is pretty low powered...

btw for question 7 i thought the answer was D because for hydro electrictiy it is more efficient than all the other methods because its source, the water, is pushed by gravity though pipes (sometimes thinner to increase pressure) to turn a turbine where as all the other forms of electricity...