Based on a draft report released by a top scientific organization there is a huge possibility that renewable energy will be the world’s biggest source of energy. It will be widespread and may even power-up factories and light homes, the Associated Press said on Thursday.

The report, however, warned that although we will benefit greatly from the said expansion, it will be extremely costly. Moreover, policies regarding the matter also have to be changed in order to make sure that renewable energy reaches its full potential in reducing the greenhouse effect.

The U.N. Intergovernmental Panel on Climate Change started its 4-day meeting on Thursday. Reports say that the meeting is basically optimistic on replacing fossil fuels. In the scenarios discussed in the meeting, there is a great chance that even if efforts to deal with climate change will not be taken in to account, we can still expect renewable energy.

The report said that the entire sources of renewable energy only represent 13 per cent of the primary energy source during 2008. However, it has been growing since then. IPCC did not comment about the report and said that it is still subject to negotiations.

On the other hand, the report made it perfectly clear that before the said plan can even start implementation, it will face a lot of hurdles. Furthermore, it pointed out that it still has to be coupled with our existing energy supplies in order for renewable energies to work efficiently.