{"id":17297,"date":"2026-03-16T07:00:05","date_gmt":"2026-03-16T06:00:05","guid":{"rendered":"https:\/\/isleutilities.com\/?post_type=case-study&#038;p=17297"},"modified":"2026-07-06T09:47:57","modified_gmt":"2026-07-06T08:47:57","slug":"taswater-nrw-reduction-investment-plan-strategic-business-case","status":"publish","type":"case-study","link":"https:\/\/isleutilities.com\/it\/case-study\/taswater-nrw-reduction-investment-plan-strategic-business-case\/","title":{"rendered":"TasWater NRW Reduction Investment Plan &#038; Strategic Business Case"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Isle\u2019s NRW Reduction Investment Plan forecasts the costs, benefits and staffing needs for TasWater\u2019s Water Efficiency Program (WEP).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">TasWater networks span large geographic areas, diverse topography, and ageing infrastructure. While the state is often perceived as water-secure, leakage and system losses reduce available supply, increase operating costs, and place additional pressure on treatment and distribution assets. As infrastructure ages and performance expectations rise, improving network efficiency has become an operational and financial priority.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Following an Isle-led Non-Revenue Water (NRW) review, TasWater sought to move from diagnostic insight to structured delivery. The review identified key leakage drivers, capability gaps, and performance improvement opportunities across the network.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">TasWater wanted to translate these findings into a structured program of works, governed by a clear, prioritised, and defensible investment roadmap, one that balanced cost, benefit, and delivery capacity over the medium term.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Building on the review, Isle developed a six-year NRW Reduction Investment Plan and supporting business case, outlining\u00a0 $171\u202fmillion of targeted activities to reduce NRW and improve reporting accuracy, delivering approximately 39\u202fGL in water savings. Our team modelled costs, quantified benefits, assessed staffing and capability requirements, and defined a phased implementation pathway, providing TasWater with a clear, evidence-based roadmap to embed sustainable performance improvement across its network.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Isle continues to support the implementation of several streams of work, track outcomes over time and refine theWater Efficiency Program (WEP).<\/span><\/p>\n<h4><b>Vantaggi dell'approccio e dell'innovazione<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Reduces water loss: <\/b><span style=\"font-weight: 400;\">The program targets a 39GL reduction in NRW over the six-year uplift period, providing a clear, quantified pathway to improve network performance and reach a sustainable level of water efficiency.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Capability uplift: <\/b><span style=\"font-weight: 400;\">The WEP improves TasWater\u2019s capability in NRW governance, measurement, monitoring and reporting.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Strengthens investment decisions: <\/b><span style=\"font-weight: 400;\">The business case evaluates three delivery options, assessing NRW impact, TOTEX, achievability, and delivery risk to identify the most robust and defensible approach.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Enables smarter targeting: <\/b><span style=\"font-weight: 400;\">Initial investment focuses on enabling works that improve data quality and system insight, supporting more precise and cost-effective reduction activities in later years.<\/span><\/li>\n<li aria-level=\"1\"><b>Builds adaptive delivery: <\/b><span style=\"font-weight: 400;\">A phased investment approach allows annual performance reviews, enabling program and budget adjustments to ensure funding and resourcing remain aligned with target outcomes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Improves financial transparency: <\/b><span style=\"font-weight: 400;\">The Investment plan provides a detailed CAPEX, OPEX, and TOTEX breakdown in present and real future values across each year and pricing period, supporting clear reporting and regulatory confidence<\/span><span style=\"font-weight: 400;\">.\u00a0\u00a0\u00a0<\/span><\/li>\n<\/ul>\n<h4><b>Servizi specialistici coinvolti<\/b><\/h4>\n<ul>\n<li aria-level=\"1\"><b>NRW program design: <\/b><span style=\"font-weight: 400;\">Our expertise defined the optimal sequencing of enabling and reduction activities, quantifying benefits for each intervention on a quarterly basis to maximise impact and delivery confidence.<\/span><\/li>\n<li aria-level=\"1\"><b>Investment modelling: <\/b><span style=\"font-weight: 400;\">We developed a comprehensive Investment Plan detailing OPEX, CAPEX, NRW benefits, and FTE requirements across six workstreams and eighteen sub-streams, providing full cost and resource visibility.<\/span><\/li>\n<li aria-level=\"1\"><b>Board-level business case: <\/b><span style=\"font-weight: 400;\">We produced a Board-ready business case including financial modelling, risk assessment, options analysis, implementation approach, and clear recommendations to support informed decision-making.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Executive alignment: <\/b><span style=\"font-weight: 400;\">We presented outputs to the Chief Financial Officer, General Manager of Sustainable Infrastructure Services, and the full executive team, ensuring leadership understanding, challenge, and endorsement of the program direction.<\/span><\/li>\n<\/ul>\n<h4><b>Risultati<\/b><\/h4>\n<ul>\n<li aria-level=\"1\"><b>Program approval: <\/b><span style=\"font-weight: 400;\">The first year (FY2026) of the Investment Plan received formal approval, securing the planned CAPEX and OPEX uplift to commence delivery.<\/span><\/li>\n<li aria-level=\"1\"><b>Secured water savings: <\/b><span style=\"font-weight: 400;\">Achievement of target NRW reduction levels will deliver sustained savings of 12.7 GL of water per year, strengthening long-term supply efficiency.<\/span><\/li>\n<li aria-level=\"1\"><b>Positive financial return: <\/b><span style=\"font-weight: 400;\">The investment plan is forecast to generate approximately $3.7m in net savings annually, with sustained NRW benefits outweighing ongoing program costs.<\/span><\/li>\n<li aria-level=\"1\"><b>Early performance gains: <\/b><span style=\"font-weight: 400;\">NRW reduced from 25.1% to 21.3% in the first year of the Water Efficiency Program, demonstrating measurable progress and validating the phased investment approach.<\/span><\/li>\n<\/ul>\n<h4><b>Contatto chiave:<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Per richieste e ulteriori informazioni, si prega di contattare <a href=\"mailto:paul.harris@isleutilities.com\">Paul Harris<\/a>, Global Head for Business Optimisation Services at Isle Utilities.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Isle developed a six-year NRW Reduction Investment Plan and business case for TasWater, outlining a structured program of work to improve NRW measurement, reporting accuracy, and reduce NRW losses. <\/p>","protected":false},"featured_media":17299,"template":"","meta":{"_acf_changed":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[44],"case-studies":[],"class_list":["post-17297","case-study","type-case-study","status-publish","has-post-thumbnail","hentry","category-navigate-the-next"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>TasWater NRW Reduction Investment Plan &amp; Strategic Business Case | Isle Utilities<\/title>\n<meta name=\"description\" content=\"Isle developed a six-year NRW Reduction Investment Plan and business case for 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