Death Match: Origin Solar Flex Leasing Vs. Buying Your Own System

lease vs cash - Origin Solar Flex review

Solar power for $0 upfront sounds tempting. But is it a good deal?

This is Thunderdome.

Two methods of putting solar on your roof enter.

One method leaves.

Today’s deathmatch is between Origin Energy’s Solar Flex leasing agreement and Private Ownership! [Read more…]

SunTenants: A Simple Way To Get Solar On Rented Roofs?

tenant and landlord looking at returns

Suntenants offers simple solar for renters.

Almost one-third of Australians live in rental properties.  This is a problem because tenants don’t like paying their own money to put solar panels on their landlord’s roof and few landlords see solar power as a good investment.  Because of this, lots of the population are missing out on the savings solar slathers all over electricity bills.  It also prevents the world benefiting from the extra clean energy that would be generated. [Read more…]

Solar Payback Time For Each Australian Capital

Simple solar payback

The cost of rooftop solar continues to fall despite the fact that the Australian dollar has been falling too.  It has been a while since I’ve harped on about how cost effective rooftop solar is, so I stayed up all night to make beautiful graphs of the simple solar payback time in every capital city.  In other words I will show you how many years it will take the savings on your electricity bills to cover the cost of your solar power system. [Read more…]

Should you scrap your 1.5kW solar and replace it with a bigger system?

solar rag and bone man

Should you bite the bullet and scrap your 1.5kW solar system so you can fit a bigger system on your roof?

Five to eight years ago, just as the Australian solar industry was getting underway, many people locked in high feed in tariffs for their new, cutting-edge solar power systems.  For example, many people in Victoria with systems installed before 2012 are now getting 71.3 cents per kilowatt-hour of solar electricity exported into the grid.  And they will continue to receive this for almost 7 more years. [Read more…]

Why It Makes Sense To Fill Your Roof With Solar

roof full of solar

Q. How much solar should you install on your roof?

A. As much as you reasonably can.

[Read more…]

What Does The Reduced STC Price Mean For Solar?

Solar salesperson

STC prices dropping means solar prices have risen. What has that done to solar payback times?

We were warned.

We all knew this was coming.

But who among us was prepared for the recent tumble in the price of STCs that lower the cost of rooftop solar?

Well, I was. [Read more…]

Solar Owners Secure As Electricity Prices & Solar Feed-In Tariffs Rise

solar owner

If you own a good-sized solar power system, rising electricity prices are not a worry, in fact some solar owners will see their bills decrease thanks to rising feed-in-tariffs.

Australians don’t pay the highest electricity prices in the world, but we’re working on it.  [Read more…]

Solar Air Conditioning Vs. Heat Reflective Paint

heat reflective paint vs solar

If your house is getting too hot should you invest in heat reflective paint or solar panels?

It can get bloody hot in summer thanks to the sun blazing down on our roofs and making them hot enough to not only fry an egg, but some bacon as well.

This post is about stopping the summer sun heating your roof, turning your home into a metaphorical oven. [Read more…]

How GST On Solar Is Calculated

get on solar

How to charge GST on solar is not obvious. Read on to discover why…

Let’s say you have just been quoted a nice round $7,000 for a brand spanking new rooftop solar system with 5 kilowatts of panels.  With Australia’s 10% Goods and Services Tax, you might expect the GST portion of that quote to come to $700.

Or, if you didn’t go to school in Toowoomba like I did, you might actually think GST would be $636.36 because that would be 10% of $6,363.64 which would then add up to a nice round $7,000.  (Remember kids, always pay attention in math class if you don’t want to end up as a lowly solar blogger.) [Read more…]

SunPower And SMA Choose To (Very Discreetly) Manufacture In China


sma sunpower Chinese welcome

High end manufacturers SunPower And SMA have chosen to manufacture in China. But they aren’t exactly advertising the fact.

China produces far more solar panels, far more solar inverters, and god knows how many more batteries than any other country in existence.  China has been called the workshop of the world1 and has repeatedly shown itself to be capable of producing high quality, reliable goods. [Read more…]


  1. The United States has been called the arsenal of democracy.  I can’t deny the US appears to have more than its fair share of arsenals.