Will they scrap the Renewable Energy Target (and by extension the ‘Solar Rebate’) or won’t they?
The Australian newspaper has reported that a couple of Coalition MPs have said Australia should scrap its Renewable Energy Target (RET) if Donald Trump dumps the United States’ commitment to the Paris climate agreement. [Read more…]
Australian Premium Solar. Not made in Australia and not Premium. (Screenshot from now-deleted APS Youtube video: Caution-tape is mine)
Australian Premium Solar is a company that sells solar panels with a warranty that is truly exceptional and sets them apart from all other panels on the market. [Read more…]
I think fossil fuels are great. [Read more…]
The Silicon Valley Toxics Coalition should be a really useful tool for solar buyers. Unfortunately it isn’t.
The Silicon Valley Toxics Coalition, or SVTC to its friends, is an organisation that has been working hard for over 32 years to protect this life encrusted blob of nickel and iron spinning in space that we call Earth.
SVTC campaigns to promote both safe environmental practices and ethical behavior in high tech industries. Each year since 2009 they have released a report called the SVTC Solar Scorecard that ranks solar panel manufacturers on both their environmental sustainability and ethical behavior. [Read more…]
It has become fashionable to refer to 2016 as a horrible year. An annus horribilis.
If your personal annus has been horribilis, then you have my condolences. But I think, for most of the world’s population, it has actually been a pretty good year. An annus prettigoodis if you will. [Read more…]
Last night Channel Nine News in Sydney ran a short segment on how NSW’s high gross solar feed-in tariffs are ending in a few days time.
Many of the details in this segment were not correct. [Read more…]
Will a grid connected Powerwall 2 beat a term deposit as an investment?
Update: read about the newly arrived Powerwall 3 in Australia
Tesla has announced the impending arrival of the Powerwall 2 at a promised price point that, on the surface, looks very compelling: $10,150 fully installed1, or 23c per warranted kWh.
It seems particularly impressive when you consider that in Sydney and Perth, time-of-use tariffs can go to 50c per kWh during peak periods.
That’s 23c for electricity from a battery vs. 50c for grid electricity. Surely that makes the Powerwall 2 a no-brainer investment for people on such a tariff?
I decided to look a little deeper into the economics of using Australia’s cheapest battery2, on Australia’s highest grid tariffs. Unfortunately I found that high peak rates are not nearly as good for the economics of the Powerwall 2 as they seem.
Read on to discover why. [Read more…]
Installing more rooftop solar is a better investment than a Powerwall 2, so always rack up as much solar on your roof as you reasonably can first. Unlike this guy.
The Tesla Powerwall 2 is going to be big. Really big. I mean that literally and not figuratively. It’s going to be big as in 13.5 kilowatt-hours of storage big. From the point of view of most Australian households that is huge.
This large capacity presents households with two main problems:
So if the average Australian home buys a Powerwall 2 they will use it at less than its full capacity. As Tesla’s warranty is fixed at a maximum of 10 years, this increases the cost of each warranted kilowatt-hour substantially.
The obvious solutions are:
Thinking of getting a Powerwall 2 and taking yourself off grid? Then you need to read this first.
Note from Finn:
Since this post was published Tesla have canned the DC Powerwall 2 in Australia. We will now only be able to get an AC Powerwall 2. A regular AC coupled battery is no good for off grid because it can’t talk to the solar inverter to balance energy demand and supply. So if you live in Australia and want to go off grid do not use a Powerwall 2.
A long time ago, back in the days before we knew how lame the original Powerwall was compared to its hype or how good the Powerwall 2’s hype is compared to the original Powerwall, I wrote about whether or not my parents in sub-tropical Queensland could save money by going off-grid using lead-acid battery storage.
My conclusion was they could not save money even under almost ideal circumstances. The benefit of staying on-grid and receiving even a low feed-in tariff for surplus solar electricity was too great to make saying sayonara to the grid connection wire worthwhile. [Read more…]
The Tesla Powerwall 2 is now $800 cheaper in Australia.
Tesla appears to be unsure about how much to charge Australians for the Powerwall 2.
Or maybe they are sure, but confused about how the Australian dollarydoo works.
Perhaps they’ve been confusing it with the New Zealand doubloon or the Fijian guilder?
I know I often do.
“Crikey! 900 dollarydoos to the New Zealand doubloon and 6 centaroos to the Fijian guilder!”
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