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Author Topic: Batteries: Today's Energy Solution  (Read 249359 times)

Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1300 on: July 24, 2020, 09:57:04 PM »
Tesla to install 800 MWh Megapack batteries for NV’s Gigawatt 1 initiative
July 24, 2020
Quote
Tesla Energy, together with tech infrastructure firm Switch and asset management firm Capital Dynamics, is involved in a massive sustainable energy project that’s poised to become one of the largest solar and battery installations in the world. The initiative, dubbed as the “Gigawatt 1” project, is expected to generate 555MW of solar power and create 800MWh of battery storage for Nevada.

The project’s announcement was related on sustainable energy outlet PVTech on Thursday. The Gigawatt 1 initiative will be comprised of three key solar and battery installations. Work has already begun on facilities at Clark and Storey County. And according to the firms involved in the project, the Storey County installation will be “the largest behind-the-meter solar project in the world” with its 127MW/240MWh size.

The batteries that would be utilized for the Gigawatt 1 project will be Tesla’s flagship energy product, the Megapack. The Megapack is Tesla’s largest energy storage unit, and it’s specifically designed for grid use. During the product’s announcement last year, Tesla noted that the large battery units feature a 60% increase in energy density over the Powerpack and it boasts up to 3 MWh of storage per pack.

What’s particularly impressive about the Megapack is that it is designed specifically for quick installations. It also comes with an AC interface and DC connectivity for solar grids, making the massive battery unit into a “plug and play” solution. “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,” Tesla noted during its announcement of the battery. ... 
https://www.teslarati.com/tesla-megapack-batteries-800mwh-nevada-project/
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Sigmetnow

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Re: Batteries: Today's Energy Solution
« Reply #1301 on: July 29, 2020, 07:31:04 PM »
California
Tesla, PG&E break ground on 'landmark' energy storage facility 
July 29, 2020
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Tesla Inc. TSLA, +2.31% and PG&Electric Corp. PCG, +1.39% broke ground last week on a lithium-ion battery energy storage system at a PG&E electric substation in the central coast of California, the companies said in a statement that called the facility a "landmark." The system will be designed, constructed, and maintained by both companies, and owned and operated by PG&E, they said.

Construction is expected to continue into early next year, with the goal of having it energized in early 2021 and fully operational in the second quarter of 2021. "Once operational, the Moss Landing substation system will be one of the largest utility-owned, lithium-ion battery energy storage systems in the world," the companies said. Stationary energy-storage systems help smooth out electric-grid peaks and valleys and make the grid more reliable.
https://www.marketwatch.com/story/tesla-pge-break-ground-on-landmark-energy-storage-facility-2020-07-29
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Yuha

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Re: Batteries: Today's Energy Solution
« Reply #1302 on: Today at 12:18:53 PM »
Tesla big battery sets new record as testing for Hornsdale expansion enters final stage
Australia, 11 August 2020
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It is now being expanded to a capacity of 150MW/194MWh, and is adding new services, particularly synthetic inertia, that will allow it to replicate more of the services once exclusive to fossil fuel generators in South Australia, and allow the grid to take another important step towards the shift to the state government target of “net 100 per cent renewables.”
[...]
On Tuesday, in the latest series of tests, the Hornsdale battery did a rapid 270MW flip – from charging at 120MW to discharging at 150MW. It appears to have flipped between the two on several different occasions (see graph above) – at least one of which had an immediate impact on the wholesale price of electricity, pushing it down to the peppercorn price of just above $8/MWh.

Those 270MW flips – from the level of discharge to the level of charge – are likely a world record in both speed and extent of the change.
[...]
The new testing on synthetic inertia, or virtual inertia as David Leitch explains in this excellent piece on the work being done already by the Dalrymple North battery, will prove yet another critical grid service and function that can be delivered by inverter-based technologies, and remove another important brick in the wall of the incumbent synchronous generators. The industry, in Australia and overseas, is watching with keen interest.
https://reneweconomy.com.au/tesla-big-battery-sets-new-record-as-testing-for-hornsdale-expansion-enters-final-stage-65376/

That synthetic or virtual inertia is probably the same grid stabilizing service that was achieved using flywheel storage in Scotland as discussed in the Renewable Energy thread recently:

https://forum.arctic-sea-ice.net/index.php/topic,256.msg272207.html#msg272207