The short version is that for power you consume as it is produced, you save buying power from the grid.
So, you could say that the power you produce is worth to you the prevailing rate that you pay for power. When you export power over and above your instantaneous consumption, you are paid between 0c / kWh or 8c / kWh. In other words, you are not paid a great deal for power exported. So, you are advised to choose a system that allows you to use all the power, but not extra.
So, what a lot of people have been waiting for is an update on the feed in tariff which is being investigated by iPart.
While their full report is not due until around April 2012, they have released a preliminary report which indicates the direction they will go.
It is not inspiring for solar!
Their brief, handed to them by the new O’Farrell State Government in the middle of 2011 is a tough one. They need to make recommendations on a system for a feed in tariff so that it does not cost existing power users or tax payers ANYTHING. This is all a knee-jerk reaction to the blow out over the admittedly generous 60c / kWh feed in tariff offered until October 27 2010. This explains why there was such a reaction to the 60c feed in tariff.
iPart is indicating a tariff of 8-10c per kWh. See a version of events here.Many are saying they are ignoring some good options available…