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Redflow, which listed in 2010 and is yet to make a profit, says zinc bromine battery technology is superior for stationary, heavy usage in tough conditions because it can be fully discharged and recharged repeatedly without losing capacity


With their commercial zinc bromide "flow" batteries - there have been few big orders for its grid-scale battery systems because of utilities are wary of technology that's unproven at an industrial scale. A few have been sold to telecommunications companies overseas and one commercial customer has a dozen. In Australia, Queensland's Ergon Energy is trialling a unit and there is potential to sign a couple of other customers.


Now moving to sell to residential scale 10kWhour battery pack, which will be delivered from mid 2016 to compete with conventional lithium ion batteries such as Tesla's Powerwall.


Recently, the Redflow LSB (large Scale Battery), using 60 11kW-hour batteries in a shipping container-sized housing to deliver 660kW hours over a full discharge, has been bought by Simon Hackett, to power the Kent Town business park he owns. This LSB can provide power for four days of typical usage by the 50 people who work there. Cost is $730,000, and Hackett ÃÆâ€â„¢ÃƒÆ’ƒâہ¡ÃƒÆ’‚¢ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â€š¬Ã…¡Ãƒâ€šÃ‚¬ÃƒÆ’…¡Ãƒâہ¡ÃƒÆ’‚¬ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã‚¡ÃƒÆ’‚¬Ãƒâ€Â¦ÃƒÆ’¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã¢â‚¬Å“ the executive chairman and largest shareholder ÃÆâ€â„¢ÃƒÆ’ƒâہ¡ÃƒÆ’‚¢ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â€š¬Ã…¡Ãƒâ€šÃ‚¬ÃƒÆ’…¡Ãƒâہ¡ÃƒÆ’‚¬ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã‚¡ÃƒÆ’‚¬Ãƒâ€Â¦ÃƒÆ’¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã¢â‚¬Å“ hopes his act of faith will convince others to buy.

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On March 30th, RedFlow launched a 10kWh battery for residential use under the banner:

Launch of ZCell home energy storage system

We expect the fully installed cost of a 10 kWh ZCell-based energy storage system will start from $17,500 - $19,500 including GST.

Sounds all very good - except where they qualify:

Robust performance in even hot and demanding remote locations without the need for external cooling until an ambient outside temperature of at least 45 degrees Celsius

The chart suggests that the market may be warming to the company - quite a lot of which may have to do with the recent 23c Entitlement offer, which was oversubscribed.



It's on my watchlist, but not in my portfolio yet.

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without the need for external cooling until an ambient outside temperature of at least 45 degrees Celsius


- but this surely negates the possibility of supplying non-diesel power to 50% of telecommunications towers in isolated areas in this country - which was the primary target market.


And no doubt, the cost of having to install external cooling would be a 'hidden extra" that is neglected in cost comparisons?

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On second thoughts, it may not be a problem. Consider this:

If it's 45 degrees-plus, you won't need to draw power from the battery, but happily live off the SPV.

When the sun doesn't shine, temperatures are unlikely to stay above 40.


That leaves the question: Do higher temperatures cause any lasting damage to the battery? Or is it only rendering charging/ discharging processes ineffective? Maybe worth asking if an opportunity presents itself.

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  • 2 weeks later...

Break Alert.

This morning, RFX broke out of the latest Darvas Box, cracking 47.5c. Assuming there is more behind it than today's hike across the Energy sector, I give it a good chance to break above the multi-year High at 52c. And using the Fibonacci Analysis as per the chart, that would give me a target around 69c.

I'm buying; stop level 47c.



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Thanks arty, there is quite a bit about this sector in the news. The AGL boss is banging on, and some visiting 'spurt talking electricity grid/ power in forms other than renewables down.


I'll try and dig something out.

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Batteries will 'change the world', says AGL chief


AGL Energy chief executive Andy Vesey has singled out the advance in battery storage as the factor that will "change the world" of energy investment over the next few years, with a significant impact on both businesses and individual consumers. Speaking at The Australian Financial Review and J.P Morgan Chanticleer lunch in Sydney, Mr Vesey said AGL was expecting a 60 per cent reduction in the cost of batteries over the next five years, while performance would improve as investment poured into the chemistry and material science underpinning the technology.


"If I was going to say one thing as to what's going to change this whole world both in terms of large-scale investments and consumer investments it's going to be the radical change you're going to see in batteries," he said.


Mr Vesey said the adoption of battery storage, both grid-scale and in the home, would "change the nature of these other investments" in large-scale renewable energy such as wind power and solar...

'It's the end of energy and transportation as we know it': Tony Seba

Within just 15 years conventional energy production and transport will have been rendered obsolete by the revolution taking place in batteries, solar power and electric cars.


The startling thesis by energy disruption guru and Stanford University lecturer Tony Seba has been around for a couple of years but after originally being dismissed as crazy, is now catching serious attention from investors.


There is "no excuse" for any board of a utility in Australia not to know what's coming, he says, outlining a world with little centralised power generation, 100 per cent electric vehicles and minimal private car ownership.


​"It's the end of energy and transportation as we know it, and it's coming very quickly," Mr Seba said at the start of a week of investor meetings in Australia...


Mr Seba's theory is based on the assumption that energy storage costs ÃÆâ€â„¢ÃƒÆ’ƒâہ¡ÃƒÆ’‚¢ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â€š¬Ã…¡Ãƒâ€šÃ‚¬ÃƒÆ’…¡Ãƒâہ¡ÃƒÆ’‚¬ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã‚¡ÃƒÆ’‚¬Ãƒâ€Â¦ÃƒÆ’¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã¢â‚¬Å“ for lithium-ion batteries for example ÃÆâ€â„¢ÃƒÆ’ƒâہ¡ÃƒÆ’‚¢ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â€š¬Ã…¡Ãƒâ€šÃ‚¬ÃƒÆ’…¡Ãƒâہ¡ÃƒÆ’‚¬ÃƒÆ’¢Ã¢Ã¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã‚¡ÃƒÆ’‚¬Ãƒâ€Â¦ÃƒÆ’¢Ã¢Ã¢â‚¬Å¡Ã‚¬Ãƒâ€¦Ã¢â‚¬Å“ continues to drop at about 16 per cent a year, driving a replacement of power plants on the grid by energy storage and plunging prices for electric vehicles.

Read more: http://www.afr.com/business/energy/electri...m#ixzz49d9kpe00

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  • 3 weeks later...

made it to the 60's, then stalled


battery developer Redflow has linked with start-up Redback Technologies in an alliance it expects to smooth the path to market for its ZCell home battery and help overcome the greater popular recognition for rival lithium-ion batteries such as Tesla's Powerwall. It confirms that Redflow's 10 kilowatt-hour ZCell battery is compatible with the Redback inverter, as well as with the product from Netherlands-based Victron Energy, which it is already working with.


"Our aim is to make sure our battery is highly compatible with industry in general," Redflow chairman and technology entrepreneur SImon Hackett said in advance of the announcement. "Redback has worked with us to ensure that their firmware in their device is compatible with our battery, knows it's there, knows how to make the best use of it."


The link-up underscores how the future development of the solar and storage space will be facilitated by software-based technology alliances that will allow batteries, rooftop solar panels and devices to be inter-connected in a "smart" system that maximises the benefits for each household depending on their energy use patterns.

interesting development; it's not just buying a battery and bunging it against the wall

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