{"id":840,"date":"2026-02-18T11:29:19","date_gmt":"2026-02-18T11:29:19","guid":{"rendered":"https:\/\/tethys-energystorage.com\/projects\/"},"modified":"2026-05-26T13:04:05","modified_gmt":"2026-05-26T13:04:05","slug":"projects","status":"publish","type":"page","link":"https:\/\/tethys-energystorage.com\/en\/projects\/","title":{"rendered":"Projects"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row content_placement=&#8221;top&#8221; css=&#8221;.vc_custom_1771574974141{padding-top: 20px !important;padding-bottom: 40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<p style=\"text-align: left; font-size: 20px; line-height: 30px;\">By deploying storage at the right nodes in the electricity grid, our projects actively help reduce grid congestion and make better use of existing infrastructure.<\/p>\n<p>[\/vc_column_text][vc_column_text css=&#8221;&#8221;]Our batteries increase the flexibility of the energy system, support the integration of renewable energy, and deliver demonstrable social value. In doing so we strengthen security of supply,and accelerate the energy transition \u2014 in balance with the local community and in cooperation with local and public partners. We develop projects in the Netherlands and Belgium.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;842&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row content_placement=&#8221;top&#8221; css=&#8221;.vc_custom_1771508256749{padding-top: 20px !important;}&#8221;][vc_column][vc_custom_heading text=&#8221;Joint venture Kallista and Tethys&#8221; font_container=&#8221;tag:h3|font_size:24px|text_align:left|line_height:34px&#8221; google_fonts=&#8221;font_family:Open%20Sans%3A300%2C300italic%2Cregular%2Citalic%2C600%2C600italic%2C700%2C700italic%2C800%2C800italic|font_style:600%20bold%20regular%3A600%3Anormal&#8221; css=&#8221;.vc_custom_1772803846114{margin-top: 0px !important;margin-bottom: 25px !important;}&#8221;][\/vc_column][\/vc_row][vc_row content_placement=&#8221;top&#8221; css=&#8221;.vc_custom_1771508249023{padding-bottom: 40px !important;}&#8221;][vc_column][vc_column_text css=&#8221;&#8221;]In 2025, Tethys and Kallista Energy entered into a strategic partnership for the development, construction and operation of BESS projects in the Netherlands. The Tethys BESS projects will be further developed jointly with Kallista. Upon completion, the objective of Kallista Energy is to become the owner and operator of the BESS projects. Kallista Energy is a European energy company with activities in wind, solar, e-mobility and BESS. Kallista Energy is backed by APG, one of the main pension fund managers in the Netherlands.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row content_placement=&#8221;top&#8221; css=&#8221;.vc_custom_1771574974141{padding-top: 20px !important;padding-bottom: 40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;] By deploying storage at the right nodes in the electricity grid, our projects actively help reduce grid congestion and make better use of existing infrastructure. [\/vc_column_text][vc_column_text css=&#8221;&#8221;]Our batteries increase the flexibility of the energy system, support the integration of renewable energy, and deliver demonstrable social value.&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-840","page","type-page","status-publish","hentry","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Projects | BESS projects in the Netherlands &amp; Belgium<\/title>\n<meta name=\"description\" content=\"Our BESS projects reduce grid congestion, increase flexibility, and strengthen the energy system. 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