Solar thread

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drew
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Solar thread

Postby drew » Tue Oct 17, 2017 11:27 am

Long story short; I'm about to get solar for my house. Any recommendations from you knowledgeable lot? I'm sure there's an expert in here somewhere. Effectively my only comments are that I want my install to be "battery ready" so I can plug a PowerWall 2 into it once they finally arrive down here in reasonable numbers.

I'm completely uninterested in building my own battery pack despite knowing there's a huge community down here built around that. I'm more interested in reasonably costed commercially available residential solutions that have a good lifespan and reliability.

So, any comments?
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Re: Solar thread

Postby CATO » Tue Oct 17, 2017 12:16 pm

Hi Drew,

Tesla PowerWall 2's are very expensive (14kWh, $10k~$12k), also the link below indicates that a Powerwall 3 is on the cards. Good luck mate, keep us updated...

https://www.savingwithsolar.com.au/tesla-powerwall-3-release-date-cost/
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Re: Solar thread

Postby drew » Wed Oct 18, 2017 10:26 am

CATO wrote:Tesla PowerWall 2's are very expensive (14kWh, $10k~$12k)


My power bills average $600 to $700 per 60 days. That's f'n ridiculous and stupidly expensive. So back of the envelope, say if I drop my power bill to somewhere around $200 per bill I'd save ~$3,700 per annually. So I'd pay off the PowerWall 2 in ~4 years. PowerWall 2s have a lifespan of 15 years. Also, from what I've read the PowerWall 2 should be ~$8k, not $10-$12k.

Early days, but it certainly makes financial sense to me.
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Max V - 2,488 ft/s, ~Mach 2.2 - M2250 - THUNDA 2015

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Re: Solar thread

Postby CATO » Fri Oct 20, 2017 7:26 am

drew wrote:
CATO wrote:Tesla PowerWall 2's are very expensive (14kWh, $10k~$12k)

Also, from what I've read the PowerWall 2 should be ~$8k, not $10-$12k.


Good to see that they are cheaper in WA, I might get one shipped from there, I have seen these advertised for over $12K in NSW, still early days and there might be a few opportunist installers about... My bill is about $800 per quarter, but I'm installing a 12.5kw Diakin ducted A/C system in the next 2 weeks so I'm guessing that the fee will most likely double :shock: .
"In thrust we trust"

AMRS 21 L3

Impulse:
2017: 5,973 Ns (13.14% M)
Ns 16: 34,558; 15: 35,955; 14: 6,016; 13: 10,208
PB - Gorilla N2717WC, H: 10,260', S: 1.14M

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Re: Solar thread

Postby OverTheTop » Fri Oct 20, 2017 7:49 am

I run an 18kW ducted aircon system. You should see the summer bills for that :shock:
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Re: Solar thread

Postby Oldboy » Fri Oct 20, 2017 11:32 pm

In a perfect world solar would be great, if savings would recoup your outlay as predicted .
Weather patterns ,global warming (scare mongers) and mother nature will always be a big factor .
Have you looked at your house and thought about ways to make it more efficient thermally both in winter and summer.
If you live in the bush source more firewood in the summer (won't need air con if your out on the chainsaw )
Or if you do it in winter use an axe, good exercise and you'll be "HUGE" :D
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Re: Solar thread

Postby Oldboy » Fri Oct 20, 2017 11:39 pm

OverTheTop wrote:I run an 18kW ducted aircon system. You should see the summer bills for that :shock:

"Its only money "
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Re: Solar thread

Postby OverTheTop » Sat Oct 21, 2017 10:03 am

[youtube]"Its only money "[/youtube]

I see where you get this from :) , but it is out of context in this discussion. Since it isn't rocketry I am quite a bit more careful with spending it since it is a recurrent expense.

Rocketry also has a combination of capital (hardware) and recurrent expenses (fuel and other consumables). The capital expenses are really minimal, regardless of the seemingly large number at purchase, due to re-use and the amount of time the builds take and entertainment provided, hence the quote above. Much more fun than feeding an aircon.
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Re: Solar thread

Postby Rex Fynns » Sat Oct 21, 2017 9:36 pm

My power bills average $600 to $700 per 60 days. That's f'n ridiculous and stupidly expensive


Luxury.....we would dream of a power bill, all we had was old broken bicycle with dynamo to run a house with 12 children and we lived in North Adelaide.

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Re: Solar thread

Postby Oldboy » Sun Oct 22, 2017 9:19 pm

OTT, glad I wasn't taken out of context.
We are all over a barrel going forward with the fees for our power usage /consumption no matter what state we live in.
If you can go off grid all well and good ,but will it mean the users remaining have to pick up the shortfall (pensioners ,etc).
We have enough resources we export (give away) that going forward we could be self sufficient.
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Re: Solar thread

Postby OverTheTop » Mon Oct 23, 2017 8:22 am

The energy supply in this country is going to the dogs. Gas prices are up 400% over the past decade, for what used to be a cheap alternative for heating. Now electric heat pumps are in front I think for $/kw.

Not helping things is that the gas suppliers have contracted to export enormous amounts of gas overseas for very long contract durations. Gas would be the ideal transition fuel as we go from coal to more renewables, but there is a shortfall in the amount available if the current contracts are held.

Seems to be two options: screw the consumer or regulate the industries. Whatever happens we get screwed while the powers-that-be vacillate.
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