I have recently been thinking of trying to start to convert my house from being on the normal electricity grid (the one where you pay a company for the privilege of them providing you with electricity to your home). The alternative is having your house generate its own power either through solar panels or if you're in the right location wind power from a turbine within your garden. The power is then generated by these energy sources and then you have a bucket load of batteries storing the power and you then access when you need it. To undertake such a move can be expensive (initial investment) and require some replacement of appliances depending on how much electricity you generate.
However, I heard recently that perhaps it is 'better' just to pay the 'premium' for Green Power through your electricity provider. The reasons as it was explained why this might be better, is because such an investment by yourself through your electricity provider means that your provider has to put this money into renewable energy sources. In turn, you provide direct investment into the renewable energy sector and ensures that there is an overall investment in this technology in Australia, leading to greater resourcing (financial commitment) of this sector and renewable energy becoming cheaper and more accessible to a broader cross-section of people within the community. Overall, this might mean that there will be less investment in non-renewable energy sources and less pollution.
Definitely food for thought. Currently, I have a 25% investment of the overall value of my electricity bill each quarter directed to Green Power, but certainly haven't made the financial leap to the 100%. Reason being, I haven't considered it a priority in the financial juggling that is undertaken in my household. However, I will certainly be considering the possibility in the future.