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SteveMDFP

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Re: Batteries: Today's Energy Solution
« Reply #1100 on: May 14, 2019, 08:11:03 PM »
Re Zhang battery in seawater

Upon reflection, i think if this is done at scale in the ocean, that Prussian Blue electrode had better be very, very stable. Square kilometers of electrode shedding cyanide complexes into the sea is not nice.

sidd

Toxicologically, this seems unlikely to be a problem to me.  Although the cyanide ion is notoriously toxic, prussian blue has the cyanide complexed to iron quite tightly.  In this form, it is even administered as a medication.  It's the strong reactivity of cyanide that makes it both toxic on its own, and readily inactivated by metals.  See:
https://en.wikipedia.org/wiki/Prussian_blue

and

https://en.wikipedia.org/wiki/Cyanide_poisoning

"In medicine, orally administered Prussian blue is used as an antidote for certain kinds of heavy metal poisoning"

Archimid

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Re: Batteries: Today's Energy Solution
« Reply #1101 on: May 26, 2019, 04:46:49 PM »
8minutenergy: ‘We can do solar peaker plants at half the cost of gas’


https://www.energy-storage.news/news/8minutenergy-we-can-do-solar-peaker-plants-at-half-the-cost-of-gas

Quote
“However, to fill that evening peak, we need storage. You start looking at the economics and power prices in that evening peak can be very high, just because these peakers, typically gas peakers, are now pushed into a shorter period to recover their fixed costs. So pricing levels can be well over US$100 per MWh and we can build a solar plant with a four hour battery to service that peak – we can build that somewhere in the US$50 to US$60 per MWh range.”
I am an energy reservoir seemingly intent on lowering entropy for self preservation.

jai mitchell

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Re: Batteries: Today's Energy Solution
« Reply #1102 on: May 26, 2019, 06:21:22 PM »
U.S. Based Electric Power Research Institute

podcast on utility and distribution changes on the horizon with distributed battery, smart inverter, ancillary services (frequency and voltage control) benefits and the potential for using multiple platforms of home and car based batteries in a grid-battery configuration. 

This group is a leader in the u.s. utility development and so this podcast represents a strong signal of change adoption by the u.s. utility industry in the coming years.

https://www.blubrry.com/epri_unplugged_podcast_series/44177486/shifting-energy-across-time-and-space-batteries-on-the-grid/
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Archimid

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Re: Batteries: Today's Energy Solution
« Reply #1103 on: June 08, 2019, 03:06:21 AM »
New Argonne coating could have big implications for lithium batteries

https://www.anl.gov/article/new-argonne-coating-could-have-big-implications-for-lithium-batteries

Quote
“The coating we’ve discovered really hits five or six birds with one stone.” Khalil Amine, Argonne distinguished fellow and battery scientist.

In the research, Amine and his fellow researchers took particles of Argonne’s pioneering nickel-manganese-cobalt (NMC) cathode material and encapsulated them with a sulfur-containing polymer called PEDOT. This polymer provides the cathode a layer of protection from the battery’s electrolyte as the battery charges and discharges.

Unlike conventional coatings, which only protect the exterior surface of the micron-sized cathode particles and leave the interior vulnerable to cracking, the PEDOT coating had the ability to penetrate to the cathode particle’s interior, adding an additional layer of shielding.

In addition, although PEDOT prevents the chemical interaction between the battery and the electrolyte, it does allow for the necessary transport of lithium ions and electrons that the battery requires in order to function.

“This coating is essentially friendly to all of the processes and chemistry that makes the battery work and unfriendly to all of the potential reactions that would cause the battery to degrade or malfunction,” said Argonne chemist Guiliang Xu, the first author of the research.
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BenB

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Re: Batteries: Today's Energy Solution
« Reply #1104 on: June 11, 2019, 12:01:04 PM »
Scottish Power is adding a 50 MW battery lithium-ion to its Whitelee wind farm:

https://www.windpowermonthly.com/article/1587063/scottishpower-add-50mw-battery-539mw-whitelee

The battery will provide grid services and enable the wind farm to better match its supply with demand. It will be the biggest battery in the UK when it goes live in 2020.

Archimid

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Re: Batteries: Today's Energy Solution
« Reply #1105 on: June 20, 2019, 01:18:20 PM »
Australia’s biggest manganese metals project may go 90% renewables

https://reneweconomy.com.au/australias-biggest-manganese-metals-project-may-go-90-renewables-55385/

Quote
The developers of what is expected to be Australia’s biggest manganese metals project are looking to source up to 90 per cent renewables for the electricity supply of its energy-intensive operations, and believe it could achieve price parity with Chinese suppliers if it does.


This is how slowly but steadily we turn even battery production to CO2 neutral.
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Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1106 on: June 23, 2019, 09:17:25 PM »
Tesla Powerwall owners can now earn up to $1,000 per year with National Grid's virtual power plant
Quote
“National Grid customers in Massachusetts or Rhode Island can now enroll their Powerwall in ConnectedSolutions, a program that links batteries across the state together to create a large supply of sustainable energy to be used during peak demand.”
https://electrek.co/2019/06/21/tesla-powerwall-earn-national-grid-virtual-power-plant/
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Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1107 on: June 24, 2019, 01:16:22 AM »
Africa:  Tesla Powerwall 2 batteries located at mobile phone towers help keep vital banking services on-line, especially now that the grid is experiencing local blackouts due to aging diesel generators, and hydropower is weakened by drought.  Powerwall communications can control solar/grid charging, and even deactivate batteries in case of theft from remote locations.

520 Tesla Powerwalls To Be Used In Largest Rollout Of AC-Coupled Li-ion Batteries In Telecoms Sector
https://cleantechnica.com/2019/06/22/520-tesla-powerwalls-largest-rollout-of-ac-coupled-li-ion-batteries-in-telecoms-sector-africa/
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Ken Feldman

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Re: Batteries: Today's Energy Solution
« Reply #1108 on: July 15, 2019, 09:54:37 PM »
The decrease in prices of batteries is leading to a huge increase in utility-scale battery storage.

https://oilprice.com/Energy/Energy-General/The-Energy-Storage-Industry-Is-Exploding.html#

Quote
China is set to become the single biggest energy storage market in the Asia Pacific region by 2024, according to new reporting by British data analysis and consultancy group Wood Mackenzie. The company’s July 9th report states in no uncertain terms that the country is poised to take over the energy storage market, as its “cumulative energy storage capacity is projected to skyrocket from 489 megawatts (MW) or 843 megawatt-hours (MWh) in 2017 to 12.5 gigawatts (GW) or 32.1GWh in 2024,” an impressive increase ”in the installed base of 25 times.”


Ken Feldman

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Re: Batteries: Today's Energy Solution
« Reply #1109 on: July 15, 2019, 10:01:29 PM »
The leading EV manufacturers are expanding their battery manufacturing capacity.

https://oilprice.com/Energy/Energy-General/EV-Giants-Vie-For-Battery-Dominance.html

Quote
Tesla is the most sold battery electric vehicle globally as of end-2018. Nissan with its
Leaf EV is third. China’s BYD is also in the top ten. The common denominator that
makes them leaders in their field is batteries.

Industry commentator Nick Cox wrote recently for Seeking Alpha that BYD had
allocated some US$1.5 billion in investment for a new battery factory. By next year, the
factory should be operational with an output of an impressive 100 GWh. That would be
a tenth of what China’s EV market would need in terms of battery supply by 2030,
according to BYD’s founder and chairman.

Given that China is the world’s largest singe EV market and likely to remain so in the
observable future, having a tenth of its total battery production capacity makes for a
pretty solid position not just locally, but internationally as well: BYD is already
supplying batteries to Toyota. There is no reason for it not to expand its partnerships
as other carmakers continue struggling with the battery issue on several levels
including cost, range, and reliability.

Tesla, meanwhile, is reportedly working on its own battery cells. CNBC carried a report
in late June, citing company employees, that the carmaker was developing its own
battery cells despite its long-running battery partnership with Panasonic. Striving for
independence in the battery segment makes sense: Elon Musk has complained in the
past of battery constraints that have affected Tesla production and deliveries. There
have also been reports of a cooling off between the partners and the development of
proprietary battery cells fits in with this narrative. Even if the speculation about the
cool-off is untrue, Tesla would certainly do its best to avoid battery constraints in the
future.

Nissan, for its part, is taking another approach. The third-best selling EV in the world
has, it turns out, very durable batteries. They last longer than the productive life of the
Leaf so the company is building demand for battery storage. One of its projects, in the
UK, offers people Nissan Energy Solar: a package of solar panels, battery storage, and a
control system. In other parts of the continent the Leaf can be connected to the grid. A
third branch of Nissan’s battery demand creation is working on turning the Leaf
batteries into a power source for street lights so these can be taken off the grid.

SteveMDFP

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Re: Batteries: Today's Energy Solution
« Reply #1110 on: July 28, 2019, 06:09:25 AM »
Came across an interesting presentation on a novel option for grid-scale battery storage:

Innovation in Stationary Electricity Storage: The Liquid Metal Battery



Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1111 on: July 30, 2019, 01:55:46 AM »
Tesla makes it simple and economical to add lots of battery storage.

Introducing Megapack: Utility-Scale Energy Storage
Quote
Megapack significantly reduces the complexity of large-scale battery storage and provides an easy installation and connection process. Each Megapack comes from the factory fully-assembled with up to 3 megawatt hours (MWhs) of storage and 1.5 MW of inverter capacity, building on Powerpack’s engineering with an AC interface and 60% increase in energy density to achieve significant cost and time savings compared to other battery systems and traditional fossil fuel power plants.

Using Megapack, Tesla can deploy an emissions-free 250 MW, 1 GWh power plant in less than three months on a three-acre footprint – four times faster than a traditional fossil fuel power plant of that size. Megapack can also be DC-connected directly to solar, creating seamless renewable energy plants.
...
Tesla developed its own software in-house to monitor, control and monetize Megapack installations. All Megapacks connect to Powerhub, an advanced monitoring and control platform for large-scale utility projects and microgrids, and can also integrate with Autobidder, Tesla’s machine-learning platform for automated energy trading. Tesla customers have already used Autobidder to dispatch more than 100 GWh of energy in global electricity markets. And, just as Tesla vehicles benefit from continued software updates over time, Megapack continues to improve through a combination of over-the-air and server-based software updates.

As the world’s transition to sustainable energy continues to accelerate, the market for advanced battery storage solutions is growing rapidly. In the past year alone, we have installed more than 1 GWh of global storage capacity with our current storage products, Powerwall and Powerpack, bringing our total global footprint to more than 2 GWh of cumulative storage. With Megapack, this number will continue to accelerate exponentially in the coming years.
https://www.tesla.com/blog/introducing-megapack-utility-scale-energy-storage


Edit:
More on the simplicity:
Quote
Along with an AC interface, the Megapack also includes DC-connectivity for solar grids, essentially giving it plug ‘n play capability for any type of power grid interface. Tesla’s Megapack product page further describes its “All-in-One-System” design:
“Every Megapack arrives pre-assembled and pre-tested in one enclosure from our Gigafactory—including battery modules, bi-directional inverters, a thermal management system, an AC main breaker and controls. No assembly is required, all you need to do is connect Megapack’s AC output to your site wiring,” Tesla detailed.

Tesla’s latest product is also very competitive compared to other utility power storage options available on the market. Thanks to its high-density energy storage capacity and modularity, the Megapack needs 40% less space and 10x fewer parts than comparable systems, according to data published on Tesla’s product page. This will bode well for areas with space constraints or simply desiring a smaller footprint for energy storage.
https://www.teslarati.com/tesla-megapack-targets-utilities-with-massive-3mwh-plug-n-play-battery/
« Last Edit: July 30, 2019, 01:54:52 PM by Sigmetnow »
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jai mitchell

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Re: Batteries: Today's Energy Solution
« Reply #1112 on: July 30, 2019, 09:06:11 PM »
Those megapacks indicate a big production cost decline in the near term. 
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Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1113 on: August 01, 2019, 04:37:49 PM »
Those megapacks indicate a big production cost decline in the near term.

I think businesses will snap them up, once they realize the benefits and how easy it is to install.
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Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1114 on: August 01, 2019, 04:40:10 PM »
Tesla big battery paves way for artificial intelligence to dominate energy trades
Quote
…Traditional generators only need to maximise their generation during periods of sufficiently high energy prices.

However, the introduction of fast-responding and versatile battery storage systems have the added complexity of optimising the opportunities to purchase electricity from the grid when prices are low, to then sell back to the market when prices are high.

In a presentation in Sydney last week, AMS said sees automated, algorithmic dispatch of battery storage systems as critical to maximising the value of the battery system.

“The Hornsdale battery was the shock heard around the world in terms of storage”. vice president of Strategy and Commercialisation at AMS, Matt Penfold told the Australian Energy Storage conference.  “It’s safe to say this project has been extremely lucrative for Tesla and Neoen.”

The Hornsdale battery has operated via an auto-bidder developed by Tesla, which has allowed the project to capture the best revenue streams for the project, to a degree that could not be achieved by human bidders alone.

“You’re thinking about ‘what is the most lucrative time I can use the energy that’s in my battery?’. given that these problems can’t be solved by human traders, we’re going to see an influx of algorithms to solve this problem for batteries.” Penfold said. “Relative to a human trader, algorithmic bidding software can increase the revenues of a battery by about five-times.”

“The curious thing is that once you have those algorithms for the batteries, you can also do pumped-hydro and renewables and gas, and essentially augment the historical way trading has been done with these really powerful tools.”
https://www.eqmagpro.com/tesla-big-battery-paves-way-for-artificial-intelligence-to-dominate-energy-trades/

———
Elon Musk Talks Tesla Terawatt-Hours. We Run Some Numbers.
https://cleantechnica.com/2019/07/31/elon-musk-hints-at-terawatt-size-tesla-master-plan-part-3-sort-of-and-it-changes-everything/
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SteveMDFP

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Re: Batteries: Today's Energy Solution
« Reply #1115 on: August 03, 2019, 09:18:02 PM »
Batteries seem to be ideal for managing the short-term mismatches between supply and demand on the grid.  I used to be pretty skeptical of the relevance of battery tech to the grid, but there's clearly an important niche there.  Bloomberg seems to agree:

A Deluge of Batteries Is About to Rewire the Power Grid
https://www.bloomberg.com/news/features/2019-08-03/a-deluge-of-batteries-is-about-to-rewire-the-power-grid


Ken Feldman

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Re: Batteries: Today's Energy Solution
« Reply #1116 on: August 09, 2019, 01:44:12 AM »
Technological advances are quickly improving the energy density and charging times for batteries.

https://oilprice.com/Energy/Energy-General/This-Is-A-Game-Changer-For-Lithium-Ion-Batteries.html

Quote
This Is A Game-Changer For Lithium-Ion Batteries

By Irina Slav - Aug 07, 2019, 3:00 PM CDT

The latest news in the battery space has been about alternatives to lithium-ion technology, which still dominates the space in electronics and cars but is being increasingly challenged from several directions, notably solid-state batteries. Now, a team of researchers has reported they have improved lithium-ion batteries in a way that could discourage some challengers.

In a paper published in Nature magazine, the team, led by Jeff Dahn from Dalhousie University, reports they had designed more battery cells with higher energy density without using the solid-state electrolyte that many believe is a necessary condition for enhanced density. What’s more, the battery cell the team designed demonstrated a longer life than some comparable alternatives.

The team from Dalhousie University was working with Tesla’s Canadian research and development team, Electrek notes in its report of the news, as well as the University of Waterloo. The EV maker is probably the staunchest proponent of lithium-ion technology for electric car batteries, so it would make sense for it to continue investing in research that would keep the technology’s dominance in the face of multiple challengers.

Recently, for example, Japanese researchers announced they had successfully found a substitute for the lithium ions used in batteries and this substitute was much cheaper and more abundant: sodium.

Quote
Sodium batteries are among the more advanced challengers to lithium ion dominance, but like other alternatives to Li-ion batteries, they have been plagued by persistent problems with their performance. Even so, work continues to make them competitive with lithium-ion technology.

This fact has probably made li-ion proponents such as Tesla, who have invested substantial amounts in the technology, double their efforts to improve their batteries’ performance or reduce their cost. As the most expensive component of an electric car, the battery is a top priority for R&D departments in the car-making industry.

Quote
Earlier this year, German scientists said they had found a way to make lithium ion batteries charge much faster. Charing times are the second most important consideration after cost for potential EV buyers, and another priority for EV makers. What the scientists did was replace the cobalt oxide used in the cathode of a lithium ion battery with another compound, vanadium disulfide.

SteveMDFP

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Re: Batteries: Today's Energy Solution
« Reply #1117 on: August 22, 2019, 05:48:40 PM »
Not a lot of technical detail in this article, but this may well constitute a significant advance in Li-ion technology:

TeraWatt Technology solid-state battery prototype tests showing 432 kWh/kg
https://www.greencarcongress.com/2019/08/20190822-tera.html

For comparison, Wikipedia states typical Li-ion energy density as " 100–265 W·h/kg (0.36–0.875 MJ/kg) ."  So, roughly doubling the energy per kilogram, if it works in production, would be a major advance.