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DESCRIPTION:Long Duration Energy Storage (LDES) is a class of technologies 
 that store energy and dispatch it as power\, heat\, or cooling for extende
 d periods\, typically ranging from 8 hours to days\, weeks\, or even entir
 e seasons. While lithium-ion batteries are common for shorter needs\, LDES
  technologies are distinct because they offer a low marginal capital cost 
 for adding energy capacity\, meaning the cost per added hour of duration i
 s significantly lower than that of traditional sealed batteries.\n\nThe ra
 pid transition to clean energy sources\, such as wind and solar\, creates 
 a fundamental need to balance the supply and demand for energy throughout 
 the day and night. LDES serves as a critical enabler for deep decarbonizat
 ion and grid reliability by capturing surplus renewable energy that would 
 otherwise be curtailed. Its value is most apparent during extended grid st
 ress events\, such as multi-day weather impacts or fuel supply disruptions
 \, where shorter-duration resources are quickly exhausted. This is highly 
 relevant to support Singapore’s ambition in importing energies from neig
 hbouring countries.\n\nThis talk will illustrate why the Vanadium Redox Fl
 ow Battery (VRFB) can be one of the contentious technologies for LDES. A V
 RFB stores energy in two separate tanks of liquid electrolytes containing 
 vanadium ions in different oxidation states. During operation\, these elec
 trolytes are pumped into a cell stack where they are separated by an ion-e
 xchange membrane that allows ions to flow while preventing the solutions f
 rom mixing. A unique technical feature of VRFBs is the decoupling of power
  and energy: the system’s power capacity is determined by the size of th
 e cell stack\, while its energy storage capacity is determined solely by t
 he volume of the electrolyte in the tanks.\n\nVRFBs offer several advantag
 es that make them a superior candidate for long-duration applications:\n\n
 - Safety and Stability: The aqueous-based chemistry is non-flammable and t
 hermally safe\, allowing large systems to be placed close together without
  fire hazards.\n- Longevity and Durability: VRFBs can last more than 20 ye
 ars with a near-limitless cycle life\, and they do not lose storage capaci
 ty even when sitting idle for long periods.\n- Sustainability: The vanadiu
 m electrolyte is infinitely recyclable\, supporting a circular economy blu
 eprint similar to the lead-battery industry.\n- Fast Response: They can be
  brought to full power in subseconds\, providing both energy management an
 d fast grid stabilization.\n\nVRFBs are versatile and support a variety of
  real-world use cases:\n\n- Renewable Integration: Balancing intermittent 
 wind and solar generation to provide a &quot;firm&quot; power supply.\n- Critical In
 frastructure: Providing reliable backup power for institutions where conti
 nuity is critical\, such as hospitals and military bases.\n- Data Centers:
  Managing volatile compute loads and offering safe\, uninterruptible power
  supplies (UPS).\n- Microgrids and Resiliency: Serving as the core of resi
 liency centers that provide essential services during extended grid outage
 s.\n\nThe purpose of this talk is to bring awareness to practicing enginee
 rs an alternative and established energy storage solution.\n\nSpeaker(s): 
 Dr LOH Wai Kuan \, \n\nVirtual: https://events.vtools.ieee.org/m/555806
LOCATION:Virtual: https://events.vtools.ieee.org/m/555806
ORGANIZER:ehbgooi@ntu.edu.sg
SEQUENCE:38
SUMMARY:Long Duration Energy Storage (LDES) Illustrated by Vanadium Redox F
 low Batteries (VRFBs)
URL;VALUE=URI:https://events.vtools.ieee.org/m/555806
X-ALT-DESC:Description: &lt;br /&gt;&lt;p class=&quot;MsoNormal&quot; style=&quot;mso-margin-top-al
 t: auto\; mso-margin-bottom-alt: auto\; text-align: justify\;&quot;&gt;&lt;span lang=
 &quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt;L
 ong Duration Energy Storage (LDES) is a class of technologies that store e
 nergy and dispatch it as power\, heat\, or cooling for extended periods\, 
 typically ranging from &lt;strong&gt;8 hours to days\, weeks\, or even entire se
 asons&lt;/strong&gt;. While lithium-ion batteries are common for shorter needs\,
  LDES technologies are distinct because they offer a &lt;strong&gt;low marginal 
 capital cost&lt;/strong&gt; for adding energy capacity\, meaning the cost per ad
 ded hour of duration is significantly lower than that of traditional seale
 d batteries.&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: a
 uto\; mso-margin-bottom-alt: auto\; text-align: justify\;&quot;&gt;&lt;span lang=&quot;EN-
 SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt;The r
 apid transition to clean energy sources\, such as wind and solar\, creates
  a fundamental need to balance the supply and demand for energy throughout
  the day and night. LDES serves as a critical enabler for &lt;strong&gt;deep dec
 arbonization&lt;/strong&gt; and grid reliability by capturing surplus renewable 
 energy that would otherwise be curtailed. Its value is most apparent durin
 g &lt;strong&gt;extended grid stress events&lt;/strong&gt;\, such as multi-day weather
  impacts or fuel supply disruptions\, where shorter-duration resources are
  quickly exhausted. This is highly relevant to support Singapore&amp;rsquo\;s 
 ambition in importing energies from neighbouring countries. &lt;/span&gt;&lt;/p&gt;\n&lt;
 p class=&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto\; mso-margin-bottom-al
 t: auto\; text-align: justify\;&quot;&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-langua
 ge: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt;This talk will illustrate why t
 he Vanadium Redox Flow Battery (VRFB) can be one of the contentious techno
 logies for LDES. A VRFB stores energy in two separate tanks of liquid elec
 trolytes containing vanadium ions in different oxidation states. During op
 eration\, these electrolytes are pumped into a &lt;strong&gt;cell stack&lt;/strong&gt;
  where they are separated by an ion-exchange membrane that allows ions to 
 flow while preventing the solutions from mixing. A unique technical featur
 e of VRFBs is the &lt;strong&gt;decoupling of power and energy&lt;/strong&gt;: the sys
 tem&amp;rsquo\;s power capacity is determined by the size of the cell stack\, 
 while its energy storage capacity is determined solely by the volume of th
 e electrolyte in the tanks.&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;mso-ma
 rgin-top-alt: auto\; mso-margin-bottom-alt: auto\; text-align: justify\;&quot;&gt;
 &lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-language:
  EN-SG\;&quot;&gt;VRFBs offer several advantages that make them a superior candida
 te for long-duration applications:&lt;/span&gt;&lt;/p&gt;\n&lt;ul type=&quot;disc&quot;&gt;\n&lt;li class
 =&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto\; mso-margin-bottom-alt: auto
 \; text-align: justify\; mso-list: l0 level1 lfo1\; tab-stops: list 36.0pt
 \;&quot;&gt;&lt;strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-farea
 st-language: EN-SG\;&quot;&gt;Safety and Stability:&lt;/span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-
 SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt; The 
 aqueous-based chemistry is &lt;strong&gt;non-flammable and thermally safe&lt;/stron
 g&gt;\, allowing large systems to be placed close together without fire hazar
 ds.&lt;/span&gt;&lt;/li&gt;\n&lt;li class=&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto\; m
 so-margin-bottom-alt: auto\; text-align: justify\; mso-list: l0 level1 lfo
 1\; tab-stops: list 36.0pt\;&quot;&gt;&lt;strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-l
 anguage: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt;Longevity and Durability:&lt;
 /span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fa
 reast-language: EN-SG\;&quot;&gt; VRFBs can last more than &lt;strong&gt;20 years&lt;/stron
 g&gt; with a near-limitless cycle life\, and they do not lose storage capacit
 y even when sitting idle for long periods.&lt;/span&gt;&lt;/li&gt;\n&lt;li class=&quot;MsoNorm
 al&quot; style=&quot;mso-margin-top-alt: auto\; mso-margin-bottom-alt: auto\; text-a
 lign: justify\; mso-list: l0 level1 lfo1\; tab-stops: list 36.0pt\;&quot;&gt;&lt;stro
 ng&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-langua
 ge: EN-SG\;&quot;&gt;Sustainability:&lt;/span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-
 ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt; The vanadium electr
 olyte is &lt;strong&gt;infinitely recyclable&lt;/strong&gt;\, supporting a circular ec
 onomy blueprint similar to the lead-battery industry.&lt;/span&gt;&lt;/li&gt;\n&lt;li cla
 ss=&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto\; mso-margin-bottom-alt: au
 to\; text-align: justify\; mso-list: l0 level1 lfo1\; tab-stops: list 36.0
 pt\;&quot;&gt;&lt;strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-far
 east-language: EN-SG\;&quot;&gt;Fast Response:&lt;/span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-SG&quot; s
 tyle=&quot;mso-ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt; They can 
 be brought to full power in &lt;strong&gt;subseconds&lt;/strong&gt;\, providing both e
 nergy management and fast grid stabilization.&lt;/span&gt;&lt;/li&gt;\n&lt;/ul&gt;\n&lt;p class
 =&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto\; mso-margin-bottom-alt: auto
 \; text-align: justify\;&quot;&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-
 SG\; mso-fareast-language: EN-SG\;&quot;&gt;VRFBs are versatile and support a vari
 ety of real-world use cases:&lt;/span&gt;&lt;/p&gt;\n&lt;ul type=&quot;disc&quot;&gt;\n&lt;li class=&quot;MsoN
 ormal&quot; style=&quot;mso-margin-top-alt: auto\; mso-margin-bottom-alt: auto\; tex
 t-align: justify\; mso-list: l1 level1 lfo2\; tab-stops: list 36.0pt\;&quot;&gt;&lt;s
 trong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-lan
 guage: EN-SG\;&quot;&gt;Renewable Integration:&lt;/span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-SG&quot; s
 tyle=&quot;mso-ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt; Balancing
  intermittent wind and solar generation to provide a &quot;firm&quot; power supply.&lt;
 /span&gt;&lt;/li&gt;\n&lt;li class=&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto\; mso-m
 argin-bottom-alt: auto\; text-align: justify\; mso-list: l1 level1 lfo2\; 
 tab-stops: list 36.0pt\;&quot;&gt;&lt;strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-langu
 age: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt;Critical Infrastructure:&lt;/span
 &gt;&lt;/strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast
 -language: EN-SG\;&quot;&gt; Providing reliable backup power for institutions wher
 e continuity is critical\, such as &lt;strong&gt;hospitals and military bases&lt;/s
 trong&gt;.&lt;/span&gt;&lt;/li&gt;\n&lt;li class=&quot;MsoNormal&quot; style=&quot;mso-margin-top-alt: auto
 \; mso-margin-bottom-alt: auto\; text-align: justify\; mso-list: l1 level1
  lfo2\; tab-stops: list 36.0pt\;&quot;&gt;&lt;strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-an
 si-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt;Data Centers:&lt;/span&gt;&lt;/
 strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-la
 nguage: EN-SG\;&quot;&gt; Managing volatile compute loads and offering safe\, unin
 terruptible power supplies (UPS).&lt;/span&gt;&lt;/li&gt;\n&lt;li class=&quot;MsoNormal&quot; style
 =&quot;mso-margin-top-alt: auto\; mso-margin-bottom-alt: auto\; text-align: jus
 tify\; mso-list: l1 level1 lfo2\; tab-stops: list 36.0pt\;&quot;&gt;&lt;strong&gt;&lt;span 
 lang=&quot;EN-SG&quot; style=&quot;mso-ansi-language: EN-SG\; mso-fareast-language: EN-SG
 \;&quot;&gt;Microgrids and Resiliency:&lt;/span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-SG&quot; style=&quot;ms
 o-ansi-language: EN-SG\; mso-fareast-language: EN-SG\;&quot;&gt; Serving as the co
 re of resiliency centers that provide essential services during extended g
 rid outages.&lt;/span&gt;&lt;/li&gt;\n&lt;/ul&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;text-align: j
 ustify\;&quot;&gt;The purpose of this talk is to bring awareness to practicing eng
 ineers an alternative and established energy storage solution.&lt;/p&gt;
END:VEVENT
END:VCALENDAR