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@antipodean said in Solar Power and Storage - a nerd's view:
the engineers, testing tracks and experience in proving concepts
Interesting way to look at it.
I'd say Tesla have done something important in proving a concept: from the Roadster to now, and soon the Model 3, there doing OK.
Now every other manufacturer is getting in on the action. And who can blame VW after their publicised diesel scandals?
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@taniwharugby said in Solar Power and Storage - a nerd's view:
http://www.nzherald.co.nz/sponsored-stories/news/article.cfm?c_id=1503708&objectid=11821714
Jeebus, Nick's put on the beef. Nice sun tan though
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Sweet!
Out of interest, how much do you guys pay in NZ for electricity in terms of connection fee per day and per-kWh price? Is it mostly single-rate, or do you have access to time-of-use tariffs (off-peak/shoulder/peak) and controlled load for hot water?
The energy efficiency program they mention in the article is a key part - the best way to save on electricity is to not use it at all. But around these parts we're fairly shit at double glazing and thermal building materials. I look at some of the stuff they do on Grand Designs UK and am insanely jealous.
Need to get up in my roof space and cover the downlights, now I think of it.
Also the exhaust fans in the bathroom need a bit of this:
https://www.bunnings.com.au/builders-edge-draft-prevent_p0811059
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@NTA said in Solar Power and Storage - a nerd's view:
Sweet!
Out of interest, how much do you guys pay in NZ for electricity in terms of connection fee per day and per-kWh price? Is it mostly single-rate, or do you have access to time-of-use tariffs (off-peak/shoulder/peak) and controlled load for hot water?
Around $1-$2 per day for fixed use charges, 22-24c per kWh (NZ$) for fixed rates, more variable for night rates etc.
Most power companies offer a range of plans, so all options in your post are available.
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@NTA I rarely use mine for the air-con side, only the heating, and it isn't that bad, my bill probably migfht be an extra $80-$120 a month depending how much we use it in winter, but my wife being English likes to use it a lot as she thinks it is dumb being cold inside your house, and being cold to her is different to my being cold...
Think mine is about 9kw for heating which is slightly less for cooling.
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@NTA said in Solar Power and Storage - a nerd's view:
Wait is this just another name for reverse-cycle air con?
I thought we were talking about a thing that extracts heat from ceiling space and pushes it into the house.
Yeah, a heat pump is just an inverter air con over here.
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@Nepia said in Solar Power and Storage - a nerd's view:
@NTA said in Solar Power and Storage - a nerd's view:
Wait is this just another name for reverse-cycle air con?
I thought we were talking about a thing that extracts heat from ceiling space and pushes it into the house.
Yeah, a heat pump is just an inverter air con over here.
Reverse cycle air con is the term you are looking for. Inverter is the tech behind how it runs. Basically the old style would kick in and out triggered by the thermostat but inverters move to a trickle feed around the thermostat setting. It's a more efficient and temperature stable process
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@Nepia said in Solar Power and Storage - a nerd's view:
@Crucial Nerd.
I haveno idea what the tech is called, was just saying what people call it round here.
You should always take into account that the people around where you are are of a generally lower intellect. You are still in Sydney aren't you?
As for being a geek, AirCon was my old mans trade, he probably designed the units at your local mall our supermarket. I remember him building and installing a unit in our house with scrap parts back in the 70s when home aircon in NZ was unheard of.
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EDIT: THIS IS A SCAM.
If anyone in Oz is thinking about this, LG are having some ridiculous price cutting:
http://lgenergyaustralia.com/pdf/LG_Energy_Solutions_50percent_Off_Sale.pdf
Let's say you're spending $16k - which is Package #6 in the LG Chem doco:
Powerwall 2 for that money would include ~5kW of panels and 13.5kWh of battery storage.
LG Package package has 9.6kW of panels (+92%) and 19.6kWh of storage (+45% storage).
I'd say the panels are superior in LG's case, while the battery is slightly in favour of Tesla due to thermal profile.
BUT most households wouldn't need the Package 6 panels OR battery. Package 4 or 5 would kill it for most households.
If you worked out your average usage per day and then got a battery about 75% of that size, you'd be right.
e.g. I consume roughly 16-17kWh per day, so Package 5 would basically put me at a small profit on my power bill, based on the numbers I've run over the past 12 months.
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@NTA said in Solar Power and Storage - a nerd's view:
If anyone in Oz is thinking about this, LG are having some ridiculous price cutting:
http://lgenergyaustralia.com/pdf/LG_Energy_Solutions_50percent_Off_Sale.pdf
Let's say you're spending $16k - which is Package #6 in the LG Chem doco:
Powerwall 2 for that money would include ~5kW of panels and 13.5kWh of battery storage.
LG Package package has 9.6kW of panels (+92%) and 19.6kWh of storage (+45% storage).
I'd say the panels are superior in LG's case, while the battery is slightly in favour of Tesla due to thermal profile.
BUT most households wouldn't need the Package 6 panels OR battery. Package 4 or 5 would kill it for most households.
If you worked out your average usage per day and then got a battery about 75% of that size, you'd be right.
e.g. I consume roughly 16-17kWh per day, so Package 5 would basically put me at a small profit on my power bill, based on the numbers I've run over the past 12 months.
I just priced up the 3KWH system locally. As that is the most you can have on your house in France if you want to sell back to the grid without it being a major ball ache.
10275 Euros without installation
That deal from LG has it installed with a better inverter for 5600 Euros. Do you reckon they would come out to France for me?
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Sorta related.
Solar Power and Storage - a nerd's view