For residential customers in Western Australia, buying power from Synergy is going to cost a lot more very soon -
A1 Tariff plan (most residential customers) currently $0.1394/KWhr, then in April $0.1532/KWhr and finally in July $0.1761/KWhr. A massive 26.32% increase in the space of a few months.
To give an idea of the new cost -
A 100Watt light bulb left on for a year -
Use this online energy convertor tool
The cost benefit of solar power will soon start to look very attractive.