{"id":5736,"date":"2016-05-17T20:07:03","date_gmt":"2016-05-17T10:37:03","guid":{"rendered":"http:\/\/www.solarquotes.com.au\/blog\/?p=5736"},"modified":"2024-06-04T15:38:47","modified_gmt":"2024-06-04T06:08:47","slug":"gcls-e-kwbe-battery-something-similar-will-change-world","status":"publish","type":"post","link":"https:\/\/www.solarquotes.com.au\/blog\/gcls-e-kwbe-battery-something-similar-will-change-world\/","title":{"rendered":"GCL’s E-KwBe Battery, Or Something Similar, Will Change The World"},"content":{"rendered":"
\"gcl

The GCL E-Kwbe battery may be unpronounceable – but it may also save the world. Kind of.<\/p><\/div>\n

GCL<\/a>, a large Chinese company, has unveiled a new lithium-ion energy storage system at a price point that some consider to be shocking. Called the EKwBe<\/a>, it has a seven year warranty, a ten year expected lifespan, and comes in two varieties. A 2.5 kilowatt-hour system that wholesales excluding GST for $1,499 and a larger 5.6 kilowatt-hour system that wholesales for $2,999.\u00a0 This is the lowest price that has been offered for any comparable energy storage system and I believe that it, or something similar, has the potential to change the world.<\/p>\n

Update: <\/strong><\/em>1st December 20016.\u00a0 The GCL EKWBE battery currently appears to be retailing\u00a0for around $3,600 inc GST.\u00a0 This doesn’t give it a cost per warranted kilowatt-hour as low as the announced Tesla Powerwall 2<\/a>, but it will be interesting to see if GCL will cut its price further in response once the Powerwall 2 is actually available for installation. <\/em><\/p>\n

[wpdtable id=”5918″]<\/p>\n

Why Chinese Made Energy Storage Will Dominate The Market<\/h2>\n

For those of you who are currently saying I am crazy, and possibly swearing at me, for stating that a new energy storage system no one has even installed yet and which might go nowhere, could change the world, I need you to just shush for a moment while I serve up a big steaming pile of nuance.<\/p>\n

I wrote the E-KwBe has the potential to change the world, or something similar. And by something similar I mean low cost Chinese energy storage. Because most of the energy storage that is going to be installed across the world, and particularly in Australia, over the next 7 or so years is going to come from China.<\/p>\n

This fact has nothing to do with who has the best technology, or the best marketing, or even what’s right and what’s wrong. It is just reality. It’s because China is big. Let me emphasize that – China is really big. If you thought Woolloomooloo had a lot of people in it, that’s just peanuts compared to China. The nation produces more engineering graduates each year than the US, Japan, and South Korea combined, and they know what they want.\u00a0 They are expanding the production capacity required for a renewable future like greased lightning – China’s production, it’s multiplying, and they’re improving quality control, and the energy storage they’re supplying, it’s electrifying.<\/p>\n

China has developed a massive amount of battery storage production capacity and is rapidly building more. They have well over 100,000 electric buses in service. They have and build more electric cars than any other nation. And they have installed large quantities of stationary energy storage in factories and other facilities across the Middle Kingdom. China leads the world in sheer quantity of battery production and they are likely to maintain their lead as their government provides industry with low cost loans funded by siphoning away worker’s savings through inflation that is higher than bank interest rates.<\/p>\n

And don’t feel too smug about that.\u00a0 It’s not as if Australian taxpayers have never subsidized industry through a variety of methods of varying dodginess.<\/p>\n

China leads the world in battery production and they are extremely likely to maintain that lead. I don’t know what will happen in the long term, maybe in 20 years most energy storage will be made in India and Nigeria. But over the medium term, for at least the next 7 years, China will produce most of the world’s battery storage. If the quality of what they produce isn’t high enough, they will raise it. If their technology isn’t good enough, they will improve it. If their marketing doesn’t dazzle the punters, they will win on price.<\/p>\n

China will produce the majority of the world’s energy storage and a lot of the time people won’t even realize the batteries in their energy storage systems were made there. It will also turn out to be true that in the future Chinese made batteries will be the ones you will hear the most complaints about and will have the most faults and cause the most fires, but this will simply be because more batteries will come from China than anywhere else. Or at least I hope that will be the reason.\u00a0 China has little to gain and plenty to lose from selling shoddy goods and they have come a long way, with the best of what they produce on par with high quality production from other nations.<\/p>\n

Of course, it is still possible to find Chinese products that are complete rubbish<\/a>.<\/p>\n

Who The Hell Is GCL?<\/h2>\n

I’ve explained how and why China is going to produce most of our energy storage, but what about this company called GCL<\/a>? Do they have the capacity to be a major player in the home energy storage market on their own? Well, apparently the company has around $20 billion in assets, 20,000 workers, they produce around 68,000 tonnes of polysilicon used in solar cells and electronics annually, and currently they have the manufacturing capacity to produce 6 gigawatts of solar PV a year which is more PV than the entire continent of Australia has. Also, they’ve been around for 26 years, which isn’t bad seeing as China only decided to give this whole capitalism thing a whirl less than 40 years ago.<\/p>\n

It’s all here in this pamphlet they gave me, and if you can’t trust a pamphlet put out by a Chinese company, what can you trust? But for those of a suspicious nature, a quick search online shows that GCL-Poly Energy Holdings Ltd. has a market capitalization of around $3.7 billion. That’s not the same thing as assets, but it does show they are a large company. And they appear to have moved into batteries in a big way. They have had experience with large scale battery installations for industrial use and small scale off-grid systems for remote communities with the solarcube<\/a>.<\/p>\n

Is The E-KwBe A Tesla Powerwall Killer?<\/h2>\n

My friend Feng-li, or Pineapple as we call her, says the E-KwBe is a Tesla Powerwall killer.<\/p>\n

Yes, Feng-li means pineapple in Chinese. No, I don’t know why her parents called her Pineapple. My only guess is when they named her they were both very hungry.<\/p>\n

However, I disagree with Pineapple, as the Tesla Powerwall basically topped itself by failing to live up to expectations. And you can’t kill something that’s already dead. Fans of zombie movies, feel free to disagree with me in the comments.<\/p>\n

And before I go too far, I will point out that the Tesla Powerwall itself isn’t dead, just the dream that it would lead us into our home and business energy storage future. The system is still around and may have a niche roll to play among those who like the word Tesla, but it is now just one system among many<\/a> and, apart from the recognizable name, it does not stand out from the pack. It would be great if Tesla turned that around, and as soon as I see they have done that, I will let you know. Until then, if you want to hear me say hopeful, optimistic things about the Tesla Powerwall, I suggest you travel back in time.<\/p>\n

If The Tesla Powerwall Isn’t Dead, Why Is The E-KwBe Wearing Its Skin?<\/h2>\n

What GCL has borrowed from the Powerwall is the appearance of the E-KwBe, as both the 2.5 and 5.6 kilowatt-hour ones basically look like smaller versions of it. And like the Powerwall, they come in a variety of not at all exciting colours.<\/p>\n

But borrowing the Powerwall’s shape is not a huge steal from Tesla, as form does follow function. If one is making an energy storage system designed to hang on a wall, one is unlikely to shape it like a muscle ball. And we will have to wait to see if they have also borrowed the idea from Tesla of keeping bad news about its warranty a secret until it actually starts being installed in Australia.<\/a><\/p>\n

The front of the E-KwBe is plastic, while the back is cast aluminium that is ribbed, not for pleasure, but for heat dissipation. (Although I am sure we could find some people who would find it pleasurable.)\u00a0 The system has no active cooling. This is one of the reasons why it is cheaper than the competition and one reason why its warranty is 7 years, rather than the more common 10 years.\u00a0 It also means the unit will be completely silent – with only a remote chance of a crackling sound if things go seriously wrong.<\/p>\n

I actually find the shorter 7 year warranty reassuring. Clearly it is easier to get an energy storage system to work reliably for 7 years than 10 years and we won’t have to wait quite as long to be confident it does work as intended.<\/p>\n

No, You Probably Can’t Get A 2.5 Kilowatt-hour E-KwBe Installed for $2,500<\/h2>\n

Both versions of the E-KwBe come with great wholesale prices. But when estimating the total cost it is not enough to simply tack $1,000 onto that to cover installation and GST. For one thing, you will need a compatible hybrid inverter and an extremely limited number of existing rooftop solar installations have one of them. Or you will need to buy a compatible battery inverter to wire in to your solar inverter, and they start at about $2,000. \u00a0And then there is the fact that these E-KwBe systems are new and unproven and the installers who first offer them are going to be taking on a fair bit of risk and the smart ones\u00a0are going to want to be compensated for that.<\/p>\n

If the systems have a high failure rate it is going to hurt the installer’s reputation and they will have to do a lot of extra work to either replace them or get them working again. And if GCL turns out to be a bitch to work with, not that I’m saying they will be, I’m sure that in reality they’re complete pussy cats, but just hypothetically speaking, if they were really bitchy, installers could waste literally scores of hours trying to get them to live up to their warranty obligations.<\/p>\n

In the future, if the E-KwBe proves itself to be reliable, GCL demonstrates that it is easy to work with, and installers become more experienced and faster at connecting the system, then we can expect installation costs to come down. Until then you can shop around to see who will give you the best price, but I strongly recommend going with someone you are confident will have your back if something goes wrong.<\/p>\n

Does It Make Economic Sense To Install An E-KwBe?<\/h2>\n

It very unlikely to make economic sense to install an E-KwBe at the moment for on-grid energy storage. And if that doesn’t pay for itself then using it to take an on-grid home off-grid<\/a> is not likely to pay either. It could be worthwhile for situations where being off-grid is the only option, but even then people would have to be okay with using a system without a proven track record. But while it doesn’t really pay for itself yet, provided it works as promised, it is a big step forwards.<\/p>\n

The great news about both the 2.5 and 5.6 kilowatt-hour versions is the nominal storage<\/a> is their actual usable capacity<\/a>, so there is none of this nonsense where a system that was marketed as being 7 kilowatt-hours somehow manages to shrink down to 5.4 kilowatt-hours in real life, like when you kill a spider the size of your hand and it shrivels down to the size of a sultana so you can’t boast about it to your mates.\u00a0 I certainly think that when companies are selling energy storage systems rather than just batteries, the nominal size should be equal to its usable capacity in order to make things easier for consumers.<\/p>\n

While the E-KwBe doesn’t cheat you out of usable storage from the get go, it will gradually degrade over time and lose capacity.\u00a0 I don’t currently have the warranty information for it so I can’t know how much it is likely to degrade, but I would expect it to be operating at around 80% of capacity after 10 years and 86% after seven years.<\/p>\n

Allowing for the degradation, over seven years a 5.6 kilowatt-hour E-KwBe should provide an average of around 93% of its full capacity as usable stored energy, which would come to 5.2 kilowatt-hours. If it provides this once a day for its entire warranty period of seven years and then dies, then the wholesale cost of $2,999 divided by the total number of stored kilowatt-hours provided will come to 22.5 cents a kilowatt-hour. If it lasts for its expected 10 year lifespan it would come to 16.3 cents per kilowatt-hour.<\/p>\n

Now 16.3 cents a kilowatt-hour might seem great because there are people in NSW on time of use tariffs who are paying 40 cents or more for electricity in the evening and only receiving 6 cents for electricity sent into the grid\u00a0 from their rooftop solar system. If they can store electricity for less than 34 cents a kilowatt-hour then they could save money. But it is not that simple.<\/p>\n

First of all, the E-kwBe would have to be completely charged with solar electricity everyday, no matter what the weather was like or how high daytime electricity demand was, and all the usable stored energy would have to be used each evening. Most households would be unlikely to use it at such a high capacity. Additionally, it will need a compatible hybrid inverter in order to operate and while the premium required for one has been rapidly falling, it will still cost more than an ordinary solar inverter.\u00a0 The cost of capital also has to be accounted for, which is how much it costs to borrow money or how much return the money spent on a system could have earned if it had been invested elsewhere.\u00a0 And finally the cost of installation has to be accounted for. To install an E-KwBe with a wholesale price of $2,999 into a system which already has a compatible hybrid inverter\u00a0may cost around\u00a0$6,000. If you need a battery inverter, then add a couple of thousand to that price. If that seems too much to you, then don’t be an early adopter and see if the price comes down.<\/p>\n

For a household that uses their energy storage at a capacity factor of 80%, pays 40 cents for electricity in the evening after the usual discounts are applied, has a 5% cost of capital, receives a 6 cent feed-in tariff for electricity they send into the grid, and didn’t have to pay anything extra to get a compatible hybrid inverter, then a 5.6 kilowatt-hour E-KwBe that works flawlessly for 10 years would have to be installed for under $3,850 just to break even. And that fully installed\u00a0price is not a realistic\u00a0possibility at the moment. But provided the cost of the E-KwBe and the cost of installation fall, it is a possibility in the future.<\/p>\n

Canberra And Adelaide CBD Battery Subsidies<\/h2>\n

Both Canberra and Adelaide City Council offer subsidies for energy storage systems.\u00a0 Adelaide’s subsidy is available now, while Canberra’s is currently in a trial period and will be open for new applicants next year.<\/p>\n

Even with a subsidy, battery systems have a very hard time paying for themselves in Canberra, as it has the lowest electricity prices in Australia, which is not good for the economics of home energy storage.\u00a0 People on a time of use tariff there will typically pay about 21 cents a kilowatt-hour for electricity in the evening.\u00a0 This means that if the subsidy paid for half the installed cost of a 5.6 kilowatt-hour E-KwBe that operated flawlessly for 10 years, was used at 80% of capacity, with a cost of capital of 5%, a solar feed-in tariff of 6 cents, and no need to pay extra for a compatible hybrid inverter, then the total cost of installation before subsidy would have to be under $3,400 for a household to save money.\u00a0 And that is definitely not likely to happen any time soon.<\/p>\n

The Adelaide City Council subsidy is only available in the Central Business District and Northern Adelaide, which is the small area above it.\u00a0 Energy storage connected to rooftop solar there can receive a subsidy of half the installed cost, to a maximum of $5,000.<\/p>\n

Electricity prices are much higher in Adelaide than Canberra and solar feed-in tariffs tend to be higher also.\u00a0 A household on a fixed tariff will pay around 28 cents a kilowatt-hour and currently there are no time of use tariffs that are more suitable available in the area.\u00a0 So given a 50% subsidy and the same conditions as in the Canberra example, except for an 8 cent solar feed-in tariff, the total cost of installation before subsidy would have to be under $4,540 for a household to save money.<\/p>\n

I’m Tellin’ Y’all It’s Arbitrage<\/h2>\n

Currently I have received no indication that the E-KwBe will come with software from Reposit that will enable it to engage in electricity arbitrage.\u00a0 That is, sell and potentially buy electricity at wholesale market prices, within limits, rather than retail prices.\u00a0 And I am assuming it doesn’t to save on cost.\u00a0 But there is no reason why it could not be used for this purpose, although it would make it much easier and cheaper if it was a standard feature.\u00a0 Just how much money a household could make from electricity arbitrage is not clear at the moment.\u00a0 Personally, I don’t think it would be a very large amount, and it will decline over time as more people install energy storage, but it could help offset some of its cost and make energy storage more affordable.<\/p>\n

The E-KwBe For Non-Voluntary Off-Grid Use<\/h2>\n

Whether or not the E-KwBe is worthwhile for people who have no choice other than to be off-grid will depend upon their situation and what their tolerance for risk is with regard to relying on a system that is new and untried. For those who’d like to give it a go, the good news is that up to eight E-KwBes can function together as a unit which should provide a maximum of around 44.8 kilowatt-hours of storage.<\/p>\n

The Non-Economic Case For Installing An E-KwBe<\/h2>\n

I’ve covered why installing an E-KwBe is very unlikely to save you money at the moment, but if you want to install one for non-economic reasons, then please feel free to go for it. You will give the rest of us valuable information on how they function and bring the day closer when we more tight fisted people loosen our vice like grip on our dollars and shell out for a system.<\/p>\n

Our Energy Storage Future Is Not Here Yet, But It Is A Lot Closer Than It Was<\/h2>\n

While GCL’s E-KwBe is very unlikely to pay for itself yet in Australia even under the most favorable of circumstances, it is the lowest cost energy storage system I know of. Provided it works as promised, it definitely brings the day that on-grid energy storage is economically worthwhile closer. I don’t find it at all difficult to believe that within a few years, with continued declines in price helped along by some adventurous early adopters with more money than sense, on-grid energy storage could fall in cost to a level where it clearly pays for itself for a significant portion of Australian households.<\/p>\n","protected":false},"excerpt":{"rendered":"

GCL, a large Chinese company, has unveiled a new lithium-ion energy storage system at a price point that some consider to be shocking. Called the EKwBe, it has a seven year warranty, a ten year expected lifespan, and comes in two varieties. 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We already knew the\u2026","rel":"","context":"In "Battery Storage"","block_context":{"text":"Battery Storage","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/battery-storage\/"},"img":{"alt_text":"powerwall 2 spec","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/11\/powerwall2-full-spec.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/11\/powerwall2-full-spec.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/11\/powerwall2-full-spec.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/11\/powerwall2-full-spec.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":26648,"url":"https:\/\/www.solarquotes.com.au\/blog\/gcl-panels-delisting-mb0869\/","url_meta":{"origin":5736,"position":3},"title":"GCL Solar Panels Struck From CEC Approved Products List","author":"Michael Bloch","date":"December 19, 2018","format":false,"excerpt":"Australia's Clean Energy Council has announced all GCL System Integration solar panel models will be removed from its Approved Products List today. 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