NGK Insulators - NaS Batteriehersteller (Seite 2)

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Antwort auf Beitrag Nr.: 58.843.182 von R-BgO am 01.10.18 15:54:04

ein Brummer:

UAE integrates 648MWh of sodium sulfur batteries in one swoop
Published: 28 Jan 2019, 15:10
By: Andy Colthorpe
https://www.energy-storage.news/news/uae-integrates-648mwh-o…


Sodium sulfur (NAS) batteries produced by Japan’s NGK Insulators are being put into use on a massive scale in Abu Dhabi, the capital of the United Arab Emirates.

The company’s battery systems have been deployed across 10 locations – 15 systems in total – adding up to 108MW / 648MWh in total, with each system able to store energy for six hours. The total undertaking includes 12 x 4MW systems and three 20MW systems. The official government Emirates News Agency described the project as the “world’s largest Virtual Battery Plant” as it opened earlier this month.

A representative at NGK’s power business division told Energy-Storage.news the ‘virtual’ description is correct in the sense that the 15 systems in 10 locations “can be controlled as a single plant. While of course they can still be controlled individually when local support to the grid is needed”.

Critical to this aggregation of the systems is the CISC (Centralised Integrated System Controller) which will be located at a control room in Mussafah, an industrial district in Abu Dhabi’s southwest where some of the battery systems are also located, with the rest in nearby Sila. CISC and the NAS systems are “ready to be operated by the TSO (transmission system operator)”, the NGK representative said.


Operational parameters increased from original scope

Awaidha Al Marar, chairman of Abu Dhabi’s Department of Energy, attended an inauguration event on 17 January, as a number of events including Abu Dhabi Sustainability Week and World Future Energy Summit (WFES) took place in the region.

The NGK CISC 648MWh project will help the city load balance across its networks during the daytime, as well as providing up to six hours backup in the case of grid outages. As with many energy storage system projects, it is primarily about reducing the strain on the grid at times of peak demand.

According to the NGK representative, the project was originally planned as thermal generation investment deferral, to reduce the cost of network operations and maintenance (O&M) and to increase total system efficiency, “as well securing that diesel will not be used anymore for peak load”. However, as the project was mapped out and development began, other services were added: frequency control, operating reserve and voltage control.


Why sodium sulfur over lithium-ion

While many grid-scale battery projects around the world are currently being executed with lithium-ion batteries, in this instance, the use of sodium sulfur, allowing for six hours of storage, is “mandatory for thermal generation investment deferral”, the NGK spokesman said, with the peak demand period being shifted itself lasting around six hours.

“[Deploying] 1MW of battery energy storage systems allows avoiding the investment in about 1.1MW of combined cycle (gas and steam) thermal power plants,” by increasing availability by about 10%, while O&M costs for battery systems “are much lower” than equivalent costs for thermal generation plants.

Energy-Storage.news asked what made the NAS battery particularly suitable for the Abu Dhabi project. The NGK representative said that the six hours of storage in each battery cell reduces total system cost versus lithium batteries. Lithium-ion systems tend to combine several one-hour duration battery cells, “which increases the integration costs”. NAS battery systems are also less sensitive to external temperature conditions. There is no need for air-conditioning to keep cells at the right operating temperature – unlike lithium batteries, NAS batteries are insulated and operate at about 300 degrees centigrade. Due to the insulation, it is still safe to touch the exterior of the module with bare hands. The NGK representative explained further that the rugged nature of the batteries and the ways they can be used provide further compelling reasons to use them in the Middle East.

NAS batteries are robust for the kind of heavy use – charging and discharging the battery each day in a full cycle from 100% state-of-charge to 0% i.e. a full 100% depth of discharge (DOD), which make generation investment deferral possible. The batteries are expected to last “15 years without degradation at system level”.

In November, Energy-Storage.news reported on the inauguration of a 20MWh NGK NAS battery project in Niedersachsen, Germany, combined with 7.5MW / 2.5MWh of lithium-ion batteries from Hitachi Chemical. That will be a three-year demonstration, developed through Japan’s NEDO (New Energy and Industrial Technology Development Organisation) and Niedersachsen’s Ministry for Economics, Labour and Transport, as well as authorities in the City of Varel where the demonstration project is located.


Seeds of energy storage’s future

The 648MWh project marks the second announced deployment of NGK NAS batteries in the Emirates, with Dubai Electricity and Water Authority (DEWA) announcing in August last year that it will test a 1.2MW / 7.2MWh NGK sodium sulfur battery system at Mohammed bin Rashid Al Maktoum Solar Park.

Also during January, a Smart Grid Station (SGS) was inaugurated in Al Ruwayyah, Dubai by Dubai Supreme Council of Energy chairman Sheikh Ahmed bin Saeed Al Maktoum. Again, a DEWA project, the SGS was deployed in partnership with South Korea’s state-owned Korea Electric Power Corporation (KEPCO).

DEWA and KEPCO have been exchanging experiences and best practises knowledge with each other on smart city and smart grid topics, including standardisation. The Internet-of-things technology-backed SGS combines a 200kW PV system with 9kW of wind energy and a 500kWh battery energy storage system. It also uses a large thermal energy storage system which provides cooling and a smart chiller system integrated into the SGS’ building management system. The DWA-KEPCO project has been in the making since November 2015.

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seit heute wieder dabei

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Schneider Electric, NGK announce partnership to promote NaS battery energy storage systems
Published: 10 Nov 2017
https://www.energy-storage.news/news/schneider-electric-ngk-…

Schneider Electric and NGK Insulators have reached the conclusion of a memorandum of understanding (MOU) under which both companies will explore global opportunities to jointly market NGK's NAS (R) battery and Schneider Electric's inverter (Conext Core XC ES).

Back in November 2016, both Schneider Electric and NGK successfully completed integration testing of the system between the NAS battery and ES Box at NGK's factory in Komaki City, Aichi Prefecture, Japan.

Integrating Schneider's energy management technology with NGK’s battery storage technology makes it possible to store large amounts of electricity with a smaller footprint. The battery uses a sodium-sulfur (NaS) chemistry and has been commercially available since 2002, used in 530MW of deployed projects at grid-scale globally.

The Conext Core XC ES is a series of central inverters designed for high efficiency and flexibility for battery-based energy storage systems — with the series boasting a peak efficiency of 99.1%. NGK commercialised the NAS battery system, which is capable of storing MWs of electricity.

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http://www.energy-storage.news/interviews/sponsored-ngks-nas…

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Antwort auf Beitrag Nr.: 47.344.956 von R-BgO am 21.07.14 14:36:02

inzwischen wieder günstiger;


keine Ahnung, warum WO den Kurs vom 28.12.2015 anzeigt...

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nach jüngstem Anstieg verkauft

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40.000 Yen sind ca. 300 Euro...:


Sumitomo, NGK Picked for Project to Cut Energy Storage Costs
By Chisaki Watanabe - Sep 2, 2013 9:10 AM GMT+0200


NGK Insulators Ltd. (5333) and a group led by Sumitomo Electric Industries Ltd. (5802) were picked for a project aimed at reducing the cost of storage systems that can help integrate clean energy onto the grid.

Japan’s government will pay the companies as much as 75 percent of development costs, the Ministry of Economy, Trade and Industry said in a statement Aug. 29. The Sumitomo group and NGK will work separately on two different technologies.

“We expect renewable energy to expand once the price of storage batteries becomes lower and installations increase,” NGK said in a statement.

Japan is promoting energy storage amid an increasing need to improve power grids to deal with intermittent power from the sun and wind after introducing an incentive program last year. Prime Minister Shinzo Abe’s government is also pushing storage batteries for export.

The government has set a goal of cutting the cost to install systems to store excess energy from renewable sources to 23,000 yen ($234) per kilowatt hour within seven years. That’s the same as the average cost for pumped hydropower.

Participants will receive financial support for five years through March 2018, according to the ministry’s website. They’ll be asked to return part or all of the subsidies depending on their progress by March 2021.
The ministry has set aside 2.7 billion yen for the fiscal year through March 31 for the project, ministry official Takatsune Ito said in a phone interview last week.


Hokkaido Grid Congestion
A ministry report released last year said sodium-sulfur batteries, the type made by NGK, cost 40,000 yen per kilowatt hour[/b].

The Nagoya-based company has been trying to reduce cost through automating the manufacturing process and improving product performance, spokeswoman Aki Sawafuji said on Aug. 29.

Sumitomo Electric, based in Osaka, develops batteries which use the metal vanadium to store electrical energy in electrolyte tanks.

The company can’t comment on the cost of a system using the technology because it isn’t commercialized yet, Mitsuyo Tsuruta, a spokeswoman, said by phone on Aug. 30.

Tsuruta declined to comment on the two other companies Sumitomo will work with on the project.
In July, Sumitomo was picked to supply a battery system with 60-megawatt hours of storage capacity to a substation operated by Hokkaido Electric Power Co. as part of a trade ministry program to stabilize the flow of wind and solar power in northern Japan.

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Release: April 25, 2012
NGK INSULATORS, LTD.

NGK Developed GaN Wafer for Ultra High Brightness LEDs
NGK Insulators, Ltd. (President: Taro Kato; Headquarters: Nagoya, Japan) has announced it has developed gallium nitride (GaN) wafers that double luminous efficiency of a LED light source compared to conventional materials.

Created with original liquid phase epitaxial growth technology, NGK's GaN wafer has low defect density and colorless transparency over the whole wafer surface.

With the assistance of a research institute outside the Company, a light emitting test was performed on a LED element using NGK's GaN wafer. The test showed a world top class internal quantum efficiency of 90% at an injection current of 200mA. The GaN wafer achieves a luminous efficiency of 200lm/W, which is twice as efficient as those on the market today. Under the same brightness, this reduces power consumption by 50%. Since the wafer reduces heat generation within LEDs, it lengthens lifetime of LEDs and enables downsizing of lighting equipment.

NGK established a new department named "Wafer Project" this month, aiming at prompt commercializing of wafer products. Within 2012 the Company will launch the shipment of sample products of 4-inch-diameter GaN wafer, which is the world's first 4-inch-diameter GaN wafer produced with the liquid phase epitaxial growth technology. NGK is accelerating the development of GaN wafers with lower defect density and of larger diameter (6 inches), aiming at the market for wafers to be used for power devices for hybrid cars, electric vehicles and power amplifiers for cellular base stations. The GaN wafer is optimum for such applications, taking advantage of its features including high breakdown voltage, high frequency operation, etc.



LED element under light emitting test
Substrate size: 1cm square, Element size: 0.3mm square
Injection current: approx. 200mA, Center wavelength: 450nm


GaN wafers (left: 2 inches, right: 4 inches)
* Internal quantum efficiency: Ratio of the number of electrons (current) injected into LED to the number of photons generated in the emission layer. The ratio is dependent on crystal defect density in the emission layer and the ideal ratio is 100%. The ratio of LED elements on the market today is 30 to 40 percent at the injection current of 200mA.

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dem Kurs gefällt das heute nicht:


NGK Responds to News Reports Today
Certain news media today carried reports concerning a fire related to NAS batteries on September 21 citing the Company's website (in Japanese). NGK INSULATORS, LTD. did not make this news announcement.

NGK deeply regrets any worry or inconvenience to customers, local authorities and residents caused by the fire involving NAS batteries.

At present, the fire authorities are investigating the cause of the fire. As the Company reported previously, NGK formed an Accident Investigation Committee (chaired by Takeyuki Mizuno, Director and Senior Vice President) on September 21, which is looking into the cause of the fire and measures to prevent a reoccurrence. However, this investigation will take some time.

NAS batteries are a mega watt-class electricity storage system and NGK was first in the world to commercialize them. Featuring large capacity and high energy density, NAS batteries help with load leveling at times of peak demand and stabilizing intermittent renewable energy, contributing to power-saving measures, reduced energy costs and lower environmental loads. Customers have shown strong interest in these products. However, until the Company identifies the cause of the recent fire and formulates measures to prevent a reoccurrence, NGK is placing top priority on safety and therefore asks customers to temporarily stop using NAS batteries in existing facilities as a precautionary measure. At the same time, NGK will respond to individual customer's circumstances regarding new shipments. NGK apologizes for any inconvenience to customers.

NGK is presently looking at the impact of the fire on its operating results, and will promptly make another announcement if there is the possibility of damages or if it is necessary to revise business forecasts.

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http://www.greentechmedia.com/articles/read/update-gigawatt-…