Dr Martin Gill recommends treating the installation of domestic solar system as a long term financial investment. This reveals that for each household there is an optimum solar size. The following articles present some of the analysis he has undertaken.
Choosing the highest feed in credit is generally not good advice
Advice available from online forums suggests consumers with a solar system should look for tariffs offering the highest solar feed in credit. This is generally not a good strategy for reducing electricity costs.
Checking Solar System Performance
Solar system performance varies significantly, even for households located in the same suburb. Poor solar system performance may result in the household failing to recover the cost of their solar system. Here we discuss simple checks of solar system performance.
Return on Investment for Sydney Solar Systems
Analysis reveals only 9% of households will recover the real cost of a solar system