Powerwall 2 Full Spec Released: Low cost but ‘unlimited cycles’ warranty has limits.

November 25, 2016 2024-10-01T10:42:42 by 79 Comments
powerwall 2 spec

The full spec and warranty of the Powerwall 2 reveal a cost per warranted kWh almost half that of its nearest rival.

[Update March 13: Tesla has cancelled sales of the DC Powerwall 2 in Australia and the first installations of the AC version of the Powerwall 2 will now apparently be done in April.]

Yesterday, Tesla kindly sent me the Powerwall 2’s full data sheet and warranty. We already knew the headline specs:

Storage: 13.5kWh

Power: 5kW steady, 7kW Peak

Price: AUD$8,000 + GST and Installation

But there were lots of questions over the exact configuration and warranty details that could make or break Tesla’s shiny new battery. Most of these questions have now been answered.

Here’s what the new specs reveal: [Read more…]

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Tesla Quietly Release New Powerwall Warranty: But There’s One Big Problem…

July 13, 2016 2017-04-18T17:33:36 by 15 Comments
powerwall warranty

The new Powerwall warranty quietly introduced into Australia last month says you are not covered for ‘normal degradation’. Whatever that means.

Can I interest you in buying a revolutionary new energy storage system? It is called the Brakulator 7000. It has a usable storage capacity of 6.4 kilowatt-hours with a continuous power output of 3.3 kilowatts.  And the great thing is it comes with a 10 year warranty.

Are you interested? [Read more…]

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ZCell Battery Review: Better Than Lithium-ion?

June 1, 2016 2024-10-02T11:19:35 by 104 Comments
redflow zcell vs powerwall etc

How does the Aussie Redflow ZCell compare to lithium ion batteries?

Note: the Cell battery has been superseded as Redflow continuously improves its product. The latest version of Redflow’s battery is called the ZBM3.

The Australian company Redflow is accepting pre-orders for its new home energy storage system, the ZCell battery.  It has a 10 kilowatt-hour usable storage capacity, can provide 3 kilowatts of continuous power, and is suitable for on-grid and off-grid use.  Deliveries will begin in August 2016.

In this Z-Cell battery review I go deep into the zinc bromide technology’s pros and cons compared to its main challenger: lithium ion batteries.

While there are many lithium-ion storage systems on the market, the Redflow ZCell stands out as the only zinc bromide flow battery.  Its unique chemistry gives it several advantages over lithium-ion systems.  One is it can lie dormant for long periods at any level of charge without suffering from deterioration.  And another is its storage capacity will never decline over its over its entire lifespan.  [Read more…]

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How The Cost Of Powerwall Storage Doubled In 11 Months

March 31, 2016 2024-10-01T10:01:16 by 39 Comments
cost of powerwall

The cost of a storing each kWh in a Tesla Powerwall is much more than you might think.

 

[Update: on Aug 16 2024 Tesla announced the Powerwall 3 ]

[Update: on Oct 28 2016 Tesla announced the Powerwall 2 ]

[Update: In June 2016 Tesla updated the Powerwall warranty – details here]

11 months ago Elon Musk jumped on stage and announced the Powerwall.  The Tesla data sheets released after Musk’s presentation proclaimed we would soon be able to buy a 7kWh daily cycling Powerwall for US$3,000. It would be guaranteed for 10 years with an optional 10 year warranty extension available. Treehouse, one of the companies who Tesla announced would be first to sell it in the US declared that $3,000 was the retail price – not the wholesale price and we all went “Wow! Cheap batteries have finally arrived.”. [Read more…]

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Powerwall Alternatives That You Should Consider as Tesla Battery Hype Reaches Fever Pitch

February 4, 2016 2024-10-01T11:00:16 by 67 Comments
powerwall alternatives

Just 3 of the Powerwall alternatives now available in Australia.

Manufacturers of Powerwall alternatives struggled to be heard last week as the mainstream media went crazy over the beautifully stage managed, first residential Powerwall battery storage installation in Australia. 

The mood was one of expectation and excitement — mixed with a tinge of dread in fossil fuel circles – as it heralded the advent of affordable home batteries from Tesla and its many competitors in the home battery market. [Read more…]

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Interview: Finn Peacock talks solar battery storage in Australia (and more)

July 7, 2015 2017-10-25T09:34:41 by 24 Comments
finn peacock

Finn Peacock talks shop with Rich Bowden

It’s been a big year for news on solar battery storage in Australia. With the imminent release of Tesla’s Powerwall onto the market and influential reports predicting a new way of accessing energy, the trend has not been “if” but “when” renewables will end up dominating new energy takeup in the country.

But how much of this is kosher and how much wishful thinking? Are we on the cusp of a solar battery storage revolution? Can we start tearing up our electricity bills? To find out the answers we asked Finn Peacock, SolarQuotes founder (and professional cutter through bullshit), his opinion on exactly what has made 2015 so important in solar power and what his predictions are for the near future.

His frank analysis is fascinating, sometimes controversial and may surprise some. [Read more…]

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