The winners and losers in Tesla’s battery plan for the home

rpm

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The winners and losers in Tesla’s battery plan for the home

Tesla’s plans to use its new battery storage system to power homes will provide households with more opportunities to reduce bills. But it will also cause headaches for the electricity distribution companies.

The company’s founder, Elon Musk, announced last week that it had developed the Powerwall batteries that could store electricity generated from solar panels.

The idea is to store the energy generated during the day, when demand is relatively low, that can then be used to power a home during the evening when the demand is higher. It can also act as a backup supply during any power cuts.
 

Drifter

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Ouch


The Powerwall battery packs come in 7kWh or 10kWh units and cost US$3,000 or US$3,500 respectively. Up to nine units can be stacked together to give a maximum 90kWh.
 

LazyLion

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So my house will need at least two, maybe three of the 10KWh units.
Or 3 of the 7KWh units if I go by the average.

So I am looking at R100,000 to R105,000 just for the batteries.
 

genetic

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So my house will need at least two, maybe three of the 10KWh units.
Or 3 of the 7KWh units if I go by the average.

So I am looking at R100,000 to R105,000 just for the batteries.

And batteries only last a few years.
 

zeridine

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I think the powerwall is still cheaper and easier than trying to wing it all by yourself (especially if you dont have the know how). I would definitely get one or even two of the 7kWh powerwalls, if its available in SA later in the year.
 

Charlie00

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And apparently SARS is going to tax these things like crazy, apparently its going to work out around R50k for the 7kwh once it arrives here

You will be able to get something better for R50k that is local
 

LazyLion

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And apparently SARS is going to tax these things like crazy, apparently its going to work out around R50k for the 7kwh once it arrives here

You will be able to get something better for R50k that is local

Source?
 

furpile

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The original article states that imported batteries are taxed at 30%.

In the other thread about this it was stated the 30% only applies to lead acid car batteries, not these Li-Ion batteries. These have 15% import tax.
 

Charlie00

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but this isnt just batteries, it could be classified as an electronic device? Becasue there is a charge controller, battery management, and more inside it?
 

Nerfherder

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So my house will need at least two, maybe three of the 10KWh units.
Or 3 of the 7KWh units if I go by the average.

So I am looking at R100,000 to R105,000 just for the batteries.


Think of this in terms of financing a car.

Lets say its R200 k for the full solution, panels, batteries, inverters. You get 10 years usage out of it (at least)
You wont pay a cent for electricity and you have no downtime. Plus if you have a smart meter you could even get money back from excess production.

I financed a R200 K car for R3k a month.... period is 5 years. Between the electricity saving and excess production this is starting to become a viable option.
 

Charlie00

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But when will we get money back (or even credit) from excess production - Eskom doesnt allow that now

And this tesla system does need power to charge - either solar or normal eskom, so you need to factor in the installation of the panels as well.
 

furpile

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But when will we get money back (or even credit) from excess production - Eskom doesnt allow that now

And this tesla system does need power to charge - either solar or normal eskom, so you need to factor in the installation of the panels as well.

His 200k included the panels, and Durban has already started the process to allow people to sell excess generation capacity to the municipality. There was an article 2 or 3 weeks ago.
 

furpile

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Sorry, didnt see the article

It's going to take quite a while for them to get the legislation through and everything sorted, and their prices are not very attractive, but at least it's a first step. Hopefully Eskom takes this up as well, otherwise it will take forever for each municipality to go through the same process.
 
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