{"id":593,"date":"2026-05-11T12:00:00","date_gmt":"2026-05-11T03:00:00","guid":{"rendered":"https:\/\/www.31ventures.jp\/en\/news\/?p=593"},"modified":"2026-05-08T17:58:43","modified_gmt":"2026-05-08T08:58:43","slug":"mitsui-fudosan-invests-in-exergy-power-systems-inc-provider-of-the-proprietary-ultra-fast-charge-and-discharge-exergy-battery-and-energy-solutions-utilizing-the-technology","status":"publish","type":"post","link":"https:\/\/www.31ventures.jp\/en\/news\/?p=593","title":{"rendered":"Mitsui Fudosan Invests in Exergy Power Systems Inc., Provider of the Proprietary Ultra-Fast Charge and Discharge Exergy Battery\u00ae and Energy Solutions Utilizing the Technology"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p>Mitsui Fudosan Co., Ltd. (\u201cMitsui Fudosan\u201d) announces that it has made an investment in Exergy Power Systems Inc. headquartered in Bunkyo-ku, Tokyo (\u201cExergy\u201d), a provider of energy solutions utilizing its proprietary Exergy Battery\u00ae, which offers ultra-fast charge and discharge capabilities. The investment was made through Mitsui Fudosan &amp; Innovation Fund (\u201c&amp; Innovation Fund\u201d), a corporate venture capital fund managed by Global Brain Corporation (\u201cGlobal Brain\u201d).<\/p>\n\n\n\n<p>In Japan\u2019s electricity market, new markets such as the balancing market are emerging as renewable energy becomes a main power source. This shift is accelerating the creation of new businesses that utilize storage batteries and demand response (\u201cDR\u201d). To maximize the value of storage batteries and DR, sophisticated operations that meet market and equipment requirements are essential. Exergy provides services that accelerate the optimization of customers&#8217; electricity usage by operating storage battery systems leveraging its proprietary Exergy Battery\u00ae in combination with distributed energy resources at power plants and electricity demand sites.<\/p>\n\n\n\n<p>Mitsui Fudosan has been conducting demonstration initiatives with Exergy in Kashiwa-no-ha Smart City. Since 2025, the two companies have accelerated their collaboration in the \u201cDemand-Side Energy Resource Aggregation Business\u201d led by Mitsui Fudosan and have begun the market deployment and trading of demand-side storage batteries located in Kashiwa-no-ha. Going forward, Mitsui Fudosan will leverage its real estate assets and other resources to accelerate the expansion of its demand-side storage battery business.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"334\" src=\"https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u67cf\u306e\u8449\u84c4\u96fb\u6c60_\u82f1\u8a9e-1024x334.jpg\" alt=\"\" class=\"wp-image-595\" srcset=\"https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u67cf\u306e\u8449\u84c4\u96fb\u6c60_\u82f1\u8a9e-1024x334.jpg 1024w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u67cf\u306e\u8449\u84c4\u96fb\u6c60_\u82f1\u8a9e-300x98.jpg 300w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u67cf\u306e\u8449\u84c4\u96fb\u6c60_\u82f1\u8a9e-768x250.jpg 768w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u67cf\u306e\u8449\u84c4\u96fb\u6c60_\u82f1\u8a9e-1536x501.jpg 1536w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u67cf\u306e\u8449\u84c4\u96fb\u6c60_\u82f1\u8a9e.jpg 1832w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\uff1cEnergy Resource Aggregation Business Using Demand-Side Storage Batteries in Kashiwa-no-ha Smart City\uff1e<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>In addition to demand-side storage batteries, Mitsui Fudosan is promoting demonstration initiatives and business development in its demand-side energy resource aggregation business by utilizing distributed energy resource equipment within its real estate assets, including air-conditioning systems, hot water supply systems, EV chargers, and generators. Mitsui Fudosan will further strengthen its business development efforts with the aim of transforming real estate assets\u2014traditionally regarded primarily as consumers of electricity\u2014into assets capable of delivering value to local communities and power grids in a society where renewable energy serves as a main power source.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3_\u82f1\u8a9e-1024x549.jpg\" alt=\"\" class=\"wp-image-596\" srcset=\"https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3_\u82f1\u8a9e-1024x549.jpg 1024w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3_\u82f1\u8a9e-300x161.jpg 300w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3_\u82f1\u8a9e-768x412.jpg 768w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3_\u82f1\u8a9e-1536x824.jpg 1536w, https:\/\/www.31ventures.jp\/en\/news\/wp-content\/uploads\/2026\/05\/\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3_\u82f1\u8a9e-2048x1099.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\uff1cConceptual System Configuration\uff1e<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u25a0About Exergy<br>\u30fbCompany name: Exergy Power Systems Inc.<br>\u30fbLocation: 4-1-16 Yushima, Bunkyo-ku, Tokyo<br>\u30fbRepresentative: Daisuke Miura<br>\u30fbFounded: May, 2011<br>\u30fbBusiness description: Energy Management Businesses<br>\u30fbURL: <a href=\"https:\/\/exergyworld.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/exergyworld.com\/<\/a><\/p>\n\n\n\n<p>\u25a0About Mitsui Fudosan &amp; Innovation Fund<br>\u30fbName: Mitsui Fudosan &amp; Innovation Fund (MF-GB Fund 3 L.P.)<br>\u30fbManager: Global Brain Corporation<br>\u30fbFund Size: JPY 15 billion<\/p>\n\n\n\n<p>\u25a0About Demand-Side Energy Resource Aggregation Business<br>\u30fbURL: <a href=\"https:\/\/www.mitsuifudosan.co.jp\/corporate\/news\/2025\/0220\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.mitsuifudosan.co.jp\/corporate\/news\/2025\/0220\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mitsui Fudosan Co., Ltd. (\u201cMitsui Fudosan\u201d) announces that it has made an investment in Exergy Power Systems I [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-593","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-func"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mitsui Fudosan Invests in Exergy Power Systems Inc., Provider of the Proprietary Ultra-Fast Charge and Discharge Exergy Battery\u00ae and Energy Solutions Utilizing the Technology - 31VENTURES<\/title>\n<meta name=\"description\" content=\"This page is about Mitsui Fudosan Invests in Exergy Power Systems Inc., Provider of the Proprietary Ultra-Fast Charge and Discharge Exergy Battery\u00ae and Energy Solutions Utilizing the Technology .\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.31ventures.jp\/en\/news\/?p=593\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mitsui Fudosan Invests in Exergy Power Systems Inc., Provider of the Proprietary Ultra-Fast Charge and Discharge Exergy Battery\u00ae and Energy Solutions Utilizing the Technology - 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