Question: How long do you think it will take to make a clean renewable energy?

Upul Wijayantha answered on 17 Jun 2010:

We are making clean renewable energy right now with solar, wind, hydro, wave and tidal as the power sources. But if you mean get all our energy from these sources it will take a long time yet as governments would have to bring in new laws to make sure all energy companies used these sources. Also at the moment fossil fuels are cheaper and we also have the infrastructure to deal with fossil fuels, so it will cost a lot to change it. So it depends on science and manufacturing to make these opinions cheaper to make and run and it depends on companies and the government to pay for the change.