<p><em>来自伯班克水电局的报告文件成功安装和运行 ESS 电池系统于实际公用事业环境</em></p>
<p><em>演示支持铁流技术在长时间能源存储应用中的价值</em></p>
<p>威尔逊维尔，俄勒冈州 --（商业资讯）--ESS Tech, Inc.（纽约证券交易所代码：GWH）（&#34;ESS&#34;或&#34;公司&#34;），是一家领先的长时间铁流能源存储系统（“LDES”）制造商，专注于商业和公用事业规模的应用，强调了与伯班克水电局合作的最终报告的发现，该报告由美国公共电力协会（APPA）发布，以评估 ESS 的铁流电池技术在实际公用事业环境中的应用。</p>
<p>该报告是在 APPA 的能源与效率发展示范项目下准备的，记录了 ESS 能源仓库系统的安装、运行和评估。根据报告，该系统成功安装、通电并在与太阳能资源共址的 21 个月项目评估期间运行，伯班克水电局得出结论，ESS 的铁流电池技术有效，并且这种电池在公用事业的整体能源存储战略中有其位置。</p>
<p>“这个项目提供了另一个例子，说明 ESS 铁流技术如何在运营的公用事业环境中表现，” ESS 首席执行官 Drew Buckley 表示。“像这样的第三方示范项目很重要，因为它们展示了技术在实际公用事业应用中的表现。该项目有助于验证我们核心技术的基本优势，这些优势延续到我们的下一代能源基础产品：长时间性能、安全且不易燃的基于铁、盐和水的化学成分，以及作为公用事业寻找耐用的能源存储替代品时在美国制造的解决方案的价值。”</p>
<p>伯班克水电局的最终报告指出了该系统及其基础化学成分的几个特征，包括使用铁、盐和水，具有不易燃和可持续性，易于获取的组件，国内制造，以及预计的长使用寿命。报告还指出，公用事业人员成功接受了系统的操作和维护培训，并且该项目支持了对铁流电池技术的更广泛教育和参与。</p>
<p>“我们与 APPA 合作，以了解长时间能源存储在支持我们未来能源和零碳能源生成需求方面的潜力，” 伯班克水电局总经理 Mandip Samra 表示。“与 ESS 和 APPA 的项目证明了安全的长时间电池替代品是可行的，并且可以使我们的电网受益。我们感谢 APPA 的领导。”</p>
<p>这些发现与 ESS 专注于提供旨在支持电网可靠性、可再生能源整合和公用事业、独立电力生产商以及商业和工业客户的能源韧性的长时间能源存储解决方案的目标一致。这一重点反映在公司的更广泛商业势头中，包括与亚利桑那州盐河项目的 “新视野” 项目，其中包括谷歌的参与，ESS 与美国空军研究实验室支持的大容量能源存储部署的合同，以及与关键合作伙伴的持续合作，以推动铁流电池系统的商业化。</p>
<p><strong>关于 ESS Tech, Inc.</strong></p>
<p>ESS（纽约证券交易所代码：GWH）是长时间铁流能源存储解决方案的领先制造商。ESS 成立于 2011 年，使命是通过更持久的能源存储安全和可持续地加速脱碳。使用易于获取的铁、盐和水，ESS 铁流技术实现了能源安全、可靠性和韧性。我们构建灵活的存储解决方案，使客户能够在不发生电力中断的情况下满足日益增长的能源需求，并最大化多余能源的价值潜力。有关更多信息，请访问 www.essinc.com。</p>
<p><strong>关于前瞻性声明的警示性语言</strong></p>
<p>本通讯包含前瞻性陈述（包括根据 1934 年证券交易法第 21E 条及 1933 年证券法第 27A 条的修订版的含义）涉及公司及其他事项，这些事项涉及重大风险和不确定性。这些陈述可能讨论管理团队的目标、信念、希望、意图和对未来计划、趋势、事件、运营结果和财务状况的期望，或其他基于公司管理层当前信念的内容，以及公司管理层所做的假设和当前可获得的信息。这些前瞻性陈述可以通过使用前瞻性术语来识别，包括 “预期”、“相信”、“继续”、“可能”、“估计”、“期望”、“打算”、“也许”、“可能”、“计划”、“潜在”、“预测”、“项目”、“应该”、“将”、“会” 或在每种情况下，它们的否定或其他变体或可比术语可能识别前瞻性陈述，但缺少这些词并不意味着某项陈述不是前瞻性的。这些前瞻性陈述受风险、不确定性和关于我们的假设的影响，可能包括我们未来财务表现的预测、我们预期的增长策略和我们业务中预期的趋势。前瞻性陈述的示例包括但不限于与 ESS 产品的市场机会、商业活动的步伐、项目新视野的制造和交付时间、公司项目交付开始的时间、ESS 产品开发和制造以及与客户的关系相关的陈述。这些前瞻性陈述基于 ESS 对未来发展及其对 ESS 潜在影响的当前期望和信念。许多因素可能导致实际未来事件与本通讯中的前瞻性陈述存在重大差异。无法保证影响 ESS 的未来发展将是我们所预期的。这些前瞻性陈述涉及许多风险、不确定性（其中一些超出 ESS 的控制范围）或其他假设，可能导致实际结果或表现与这些前瞻性陈述所表达或暗示的内容存在重大差异，包括但不限于我们在生产能源存储产品时面临的障碍；我们的产品处于商业化的早期阶段，技术的某些方面尚未经过全面的现场测试；我们无法发展业务并有效商业化我们的能源存储产品；我们依赖第三方供应商；制造操作的延迟，我们控制成本和实现成本降低策略的能力；我们对复杂机械的依赖；我们增加生产能力的能力；所需的维护不当或维护要求超出我们当前的预期；我们的亏损历史；未能提供我们技术所提供的好处；无法实现我们产品的市场接受度；我们的保修义务；我们与关联方的关系；监管挑战；我们保护知识产权的能力；以及我们在不久的将来筹集资金的能力；一般经济和市场条件以及地缘政治发展和其他在公司于 2026 年 3 月 5 日提交的 10-K 表格季度报告中标题为 “风险因素” 部分以及公司向美国证券交易委员会提交的其他文件中更全面描述的风险和不确定性。除法律要求外，ESS 不承担更新或修订任何前瞻性陈述的义务，无论是由于新信息、未来事件还是其他原因。</p>
<p><img src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1hY3FyOCZzdHk9MjAyNjA1MDY4MDY1NTFyMQ?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" alt="" original-src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1hY3FyOCZzdHk9MjAyNjA1MDY4MDY1NTFyMQ"/></p>
<p>在 businesswire.com 查看源版本：https://www.businesswire.com/news/home/20260506806551/en/</p>
<p><strong>公司</strong></p>
<p>investors@essinc.com</p>
<p><strong>投资者关系</strong></p>
<p>Chris Tyson</p>
<p>执行副总裁</p>
<p>MZ Group - MZ North America</p>
<p>电话： (949) 491-8235</p>
<p>GWH@mzgroup.us</p>
<p>www.mzgroup.us</p>
<p>来源：ESS, Inc.</p>

纳斯达克 Clean Edge 清洁绿能指数 ETF - First Trust

<p>ESS Tech, Inc.（纽约证券交易所代码：GWH）宣布其铁流电池技术通过 Burbank Water and Power 的报告成功验证。该报告记录了 ESS 能源仓库系统在 21 个月内的安装和运行，确认其在公用事业环境中的有效性。这项基于铁、盐和水的技术以其安全性、可持续性和长使用寿命而闻名。ESS 旨在支持电网可靠性和可再生能源的整合，正在进行的项目包括与美国空军和盐河项目的合作</p>

<p><em>Report from Burbank Water and Power Documents Successful Installation and Operation of ESS Battery system in Real-World Utility Setting</em></p>
<div class="lb-trans"><p><em>来自伯班克水电局的报告文件成功安装和运行 ESS 电池系统于实际公用事业环境</em></p>
</div><p><em>Demonstration Supports Value of Iron Flow Technology for Long-Duration Energy Storage Applications</em></p>
<div class="lb-trans"><p><em>演示支持铁流技术在长时间能源存储应用中的价值</em></p>
</div><p>WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Tech, Inc. (NYSE: GWH) (&#34;ESS&#34; or the &#34;Company&#34;), a leading manufacturer of long-duration iron flow energy storage systems (“LDES”) for commercial and utility-scale applications, highlighted the findings of a final report issued in connection with Burbank Water and Power for the American Public Power Association (APPA) to evaluate the application of ESS’ Iron Flow Battery technology in a real-world utility environment.</p>
<div class="lb-trans"><p>威尔逊维尔，俄勒冈州 --（商业资讯）--ESS Tech, Inc.（纽约证券交易所代码：GWH）（&#34;ESS&#34;或&#34;公司&#34;），是一家领先的长时间铁流能源存储系统（“LDES”）制造商，专注于商业和公用事业规模的应用，强调了与伯班克水电局合作的最终报告的发现，该报告由美国公共电力协会（APPA）发布，以评估 ESS 的铁流电池技术在实际公用事业环境中的应用。</p>
</div><p>The report, prepared under the APPA’s Demonstration of Energy &amp; Efficiency Developments program, documented the installation, operation, and evaluation of an ESS Energy Warehouse system. According to the report, the system was successfully installed, energized, and operated through the 21-month project evaluation period co-located with a solar resource, with Burbank Water and Power concluding that ESS’ Iron Flow Battery technology works and there is a place for this battery in a utility’s overall energy storage strategy.</p>
<div class="lb-trans"><p>该报告是在 APPA 的能源与效率发展示范项目下准备的，记录了 ESS 能源仓库系统的安装、运行和评估。根据报告，该系统成功安装、通电并在与太阳能资源共址的 21 个月项目评估期间运行，伯班克水电局得出结论，ESS 的铁流电池技术有效，并且这种电池在公用事业的整体能源存储战略中有其位置。</p>
</div><p>“This project provides another example of how ESS iron flow technology can perform in an operating utility environment,” said Drew Buckley, Chief Executive Officer of ESS. “Third-party demonstration projects like this are important because they show how the technology performs in real-world utility applications. The project helps validate the underlying strengths of our core technology, which carry through to our next generation Energy Base product: long-duration performance, a safe and non-flammable chemistry based on iron, salt and water, and the value of a solution manufactured in America as utilities look for durable energy storage alternatives to lithium-ion.”</p>
<div class="lb-trans"><p>“这个项目提供了另一个例子，说明 ESS 铁流技术如何在运营的公用事业环境中表现，” ESS 首席执行官 Drew Buckley 表示。“像这样的第三方示范项目很重要，因为它们展示了技术在实际公用事业应用中的表现。该项目有助于验证我们核心技术的基本优势，这些优势延续到我们的下一代能源基础产品：长时间性能、安全且不易燃的基于铁、盐和水的化学成分，以及作为公用事业寻找耐用的能源存储替代品时在美国制造的解决方案的价值。”</p>
</div><p>The Burbank Water and Power final report noted several attributes of the system and underlying chemistry, including the use of iron, salt, and water, non-flammable and sustainable, easily sourced components, domestic manufacturing, and a projected long operating life. The report also stated that utility personnel were successfully trained on operation and maintenance of the system and that the project supported broader education and engagement around iron flow battery technology.</p>
<div class="lb-trans"><p>伯班克水电局的最终报告指出了该系统及其基础化学成分的几个特征，包括使用铁、盐和水，具有不易燃和可持续性，易于获取的组件，国内制造，以及预计的长使用寿命。报告还指出，公用事业人员成功接受了系统的操作和维护培训，并且该项目支持了对铁流电池技术的更广泛教育和参与。</p>
</div><p>“We collaborated with APPA to understand the potential for long duration energy storage to support our future energy and zero carbon energy generation requirements,” said Mandip Samra, General Manager of Burbank Water and Power. “The project with ESS and APPA demonstrated that safe, long duration battery alternatives are viable, and can benefit our grid. We appreciate APPA’s leadership.”</p>
<div class="lb-trans"><p>“我们与 APPA 合作，以了解长时间能源存储在支持我们未来能源和零碳能源生成需求方面的潜力，” 伯班克水电局总经理 Mandip Samra 表示。“与 ESS 和 APPA 的项目证明了安全的长时间电池替代品是可行的，并且可以使我们的电网受益。我们感谢 APPA 的领导。”</p>
</div><p>The findings align with ESS’ focus on delivering long-duration energy storage solutions designed to support grid reliability, renewable integration, and energy resilience for utilities, independent power producers, and commercial and industrial customers. That focus is reflected in the Company’s broader commercial momentum, including Project New Horizon with Salt River Project in Arizona, which includes Google participation, ESS’ contract supporting a large-capacity energy storage deployment with the United States Air Force Research Laboratory, and ongoing collaboration with key partners to advance the commercialization of iron flow battery systems.</p>
<div class="lb-trans"><p>这些发现与 ESS 专注于提供旨在支持电网可靠性、可再生能源整合和公用事业、独立电力生产商以及商业和工业客户的能源韧性的长时间能源存储解决方案的目标一致。这一重点反映在公司的更广泛商业势头中，包括与亚利桑那州盐河项目的 “新视野” 项目，其中包括谷歌的参与，ESS 与美国空军研究实验室支持的大容量能源存储部署的合同，以及与关键合作伙伴的持续合作，以推动铁流电池系统的商业化。</p>
</div><p><strong>About ESS Tech, Inc.</strong></p>
<div class="lb-trans"><p><strong>关于 ESS Tech, Inc.</strong></p>
</div><p>ESS (NYSE: GWH) is the leading manufacturer of long-duration iron flow energy storage solutions. ESS was established in 2011 with a mission to accelerate decarbonization safely and sustainably through longer lasting energy storage. Using easy-to-source iron, salt, and water, ESS iron flow technology enables energy security, reliability and resilience. We build flexible storage solutions that allow our customers to meet increasing energy demand without power disruptions and maximize the value potential of excess energy. For more information visit www.essinc.com.</p>
<div class="lb-trans"><p>ESS（纽约证券交易所代码：GWH）是长时间铁流能源存储解决方案的领先制造商。ESS 成立于 2011 年，使命是通过更持久的能源存储安全和可持续地加速脱碳。使用易于获取的铁、盐和水，ESS 铁流技术实现了能源安全、可靠性和韧性。我们构建灵活的存储解决方案，使客户能够在不发生电力中断的情况下满足日益增长的能源需求，并最大化多余能源的价值潜力。有关更多信息，请访问 www.essinc.com。</p>
</div><p><strong>Cautionary Language on Forward-Looking Statements</strong></p>
<div class="lb-trans"><p><strong>关于前瞻性声明的警示性语言</strong></p>
</div><p>This communication contains forward-looking statements (including within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended) concerning the Company and other matters that involve substantial risks and uncertainties. These statements may discuss the management team’s goals, beliefs, hopes, intentions and expectations as to future plans, trends, events, results of operations and financial condition, or otherwise, based on current beliefs of the management of the Company, as well as assumptions made by, and information currently available to, the Company’s management. These forward-looking statements can be identified by the use of forward-looking terminology, including the words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “will,” “would,” or, in each case, their negative or other variations or comparable terminology may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements, which are subject to risks, uncertainties and assumptions about us, may include projections of our future financial performance, our anticipated growth strategies and anticipated trends in our business. Examples of forward-looking statements include, among others, statements pertaining to market opportunities for ESS’ products, pace of commercial activity, the timing for manufacturing and delivery for Project New Horizon, the timing of delivery commencing for the Company’s projects, ESS product development and manufacturing, and relationships with customers. These forward-looking statements are based on ESS’ current expectations and beliefs concerning future developments and their potential effects on ESS. Many factors could cause actual future events to differ materially from the forward-looking statements in this communication. There can be no assurance that the future developments affecting ESS will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond ESS control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements, which include, but are not limited to, barriers we face in our attempts to produce our energy storage products; our products being in the early stage of commercialization and aspects of our technology not having been fully field tested; our inability to develop our business and effectively commercialize our energy storage products; our dependence on third-party suppliers; delays in our manufacturing operations, our ability to control our costs and achieve our cost reduction strategy; our dependence on complex machinery; our ability to increase our production capacity; required maintenance being performed incorrectly or maintenance requirements exceeding our current expectations; our history of losses; failure to deliver the benefits offered by our technology; inability to achieve market acceptance of our products; our warranty obligations; our relationships with related parties; regulatory challenges; our ability to protect our intellectual property; and our ability to raise capital in the near future; general economic and market conditions as well as geopolitical developments and other risks and uncertainties described more fully in the section titled “Risk Factors” in the Company’s Quarterly Report on Form 10-K filed on March 5, 2026, and the Company’s other filings with the U.S. Securities and Exchange Commission. Except as required by law, ESS is not undertaking any obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.</p>
<div class="lb-trans"><p>本通讯包含前瞻性陈述（包括根据 1934 年证券交易法第 21E 条及 1933 年证券法第 27A 条的修订版的含义）涉及公司及其他事项，这些事项涉及重大风险和不确定性。这些陈述可能讨论管理团队的目标、信念、希望、意图和对未来计划、趋势、事件、运营结果和财务状况的期望，或其他基于公司管理层当前信念的内容，以及公司管理层所做的假设和当前可获得的信息。这些前瞻性陈述可以通过使用前瞻性术语来识别，包括 “预期”、“相信”、“继续”、“可能”、“估计”、“期望”、“打算”、“也许”、“可能”、“计划”、“潜在”、“预测”、“项目”、“应该”、“将”、“会” 或在每种情况下，它们的否定或其他变体或可比术语可能识别前瞻性陈述，但缺少这些词并不意味着某项陈述不是前瞻性的。这些前瞻性陈述受风险、不确定性和关于我们的假设的影响，可能包括我们未来财务表现的预测、我们预期的增长策略和我们业务中预期的趋势。前瞻性陈述的示例包括但不限于与 ESS 产品的市场机会、商业活动的步伐、项目新视野的制造和交付时间、公司项目交付开始的时间、ESS 产品开发和制造以及与客户的关系相关的陈述。这些前瞻性陈述基于 ESS 对未来发展及其对 ESS 潜在影响的当前期望和信念。许多因素可能导致实际未来事件与本通讯中的前瞻性陈述存在重大差异。无法保证影响 ESS 的未来发展将是我们所预期的。这些前瞻性陈述涉及许多风险、不确定性（其中一些超出 ESS 的控制范围）或其他假设，可能导致实际结果或表现与这些前瞻性陈述所表达或暗示的内容存在重大差异，包括但不限于我们在生产能源存储产品时面临的障碍；我们的产品处于商业化的早期阶段，技术的某些方面尚未经过全面的现场测试；我们无法发展业务并有效商业化我们的能源存储产品；我们依赖第三方供应商；制造操作的延迟，我们控制成本和实现成本降低策略的能力；我们对复杂机械的依赖；我们增加生产能力的能力；所需的维护不当或维护要求超出我们当前的预期；我们的亏损历史；未能提供我们技术所提供的好处；无法实现我们产品的市场接受度；我们的保修义务；我们与关联方的关系；监管挑战；我们保护知识产权的能力；以及我们在不久的将来筹集资金的能力；一般经济和市场条件以及地缘政治发展和其他在公司于 2026 年 3 月 5 日提交的 10-K 表格季度报告中标题为 “风险因素” 部分以及公司向美国证券交易委员会提交的其他文件中更全面描述的风险和不确定性。除法律要求外，ESS 不承担更新或修订任何前瞻性陈述的义务，无论是由于新信息、未来事件还是其他原因。</p>
</div><p><img src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1hY3FyOCZzdHk9MjAyNjA1MDY4MDY1NTFyMQ" alt="" original-src="https://cts.businesswire.com/ct/CT?id=bwnews&amp;sty=20260506806551r1&amp;sid=acqr8&amp;distro=nx&amp;lang=en"/></p>
<p>View source version on businesswire.com: https://www.businesswire.com/news/home/20260506806551/en/</p>
<div class="lb-trans"><p>在 businesswire.com 查看源版本：https://www.businesswire.com/news/home/20260506806551/en/</p>
</div><p><strong>Company</strong></p>
<div class="lb-trans"><p><strong>公司</strong></p>
</div><p>investors@essinc.com</p>
<div class="lb-trans"><p>investors@essinc.com</p>
</div><p><strong>Investor Relations</strong></p>
<div class="lb-trans"><p><strong>投资者关系</strong></p>
</div><p>Chris Tyson</p>
<div class="lb-trans"><p>Chris Tyson</p>
</div><p>Executive Vice President</p>
<div class="lb-trans"><p>执行副总裁</p>
</div><p>MZ Group - MZ North America</p>
<div class="lb-trans"><p>MZ Group - MZ North America</p>
</div><p>Phone: (949) 491-8235</p>
<div class="lb-trans"><p>电话： (949) 491-8235</p>
</div><p>GWH@mzgroup.us</p>
<div class="lb-trans"><p>GWH@mzgroup.us</p>
</div><p>www.mzgroup.us</p>
<div class="lb-trans"><p>www.mzgroup.us</p>
</div><p>Source: ESS, Inc.</p>
<div class="lb-trans"><p>来源：ESS, Inc.</p>
</div>

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