Articles by James Martin

Sonnen’s ‘free’ / flat-rate electricity plan looks great. Is it worth it?

How does Sonnenflat stacks up against the alternatives, like doing nothing; going solar, or; going with another solar & battery system without a custom-made electricity plan?

Why a 5kW solar system probably isn’t ‘too big’ for your home

Two of the most popular residential solar PV system sizes in Australia are 3kW and 5kW. Which system size is the better investment – and why?

2017: The year battery storage started to make sense

To be ‘worth it’ or to ‘break even’ – that is the question around residential battery storage at the moment. Here’s a look at payback by system size.

Is battery storage worth it in your city?

Which Australian capital cities currently have the best conditions for home solar battery storage? We’ve crunched the numbers and ranked them below.

A quick guide to energy management systems

Home energy management systems are fast becoming a popular way to get the most out of solar and batteries. Here’s a side-by-side comparison of the various offerings currently available in Australia.

How low do battery prices need to go?

Early adopters are already getting their batteries installed around the country, and it’s only a matter of time before more solar homes do the same. How much further do battery storage prices need to fall before they make sense as an investment?

Solar Choice PV price index: Why bigger could be better

Average solar system prices for Australia’s capital cities rose slightly between September and October, mostly among smaller systems.

Residential rooftop solar PV prices at record lows in Australia

Average residential solar system prices for September 2016 have matched the all-time low seen in December of last year.

The fall and fall of rooftop solar prices: four years of data

After four years of tracking Australia’s rooftop solar system prices, we take a look back over our data at some of the noteworthy trends that have emerged over this period.

Solar Choice PV price index: August 2016

This August marks four full years of Solar Choice’s PV Price Index. Here are some charts following the changes in average solar PV system prices from 2012.