{"id":4173,"date":"2026-06-11T09:00:00","date_gmt":"2026-06-11T09:00:00","guid":{"rendered":"https:\/\/pirhome.com\/?p=4103"},"modified":"2026-06-11T09:00:00","modified_gmt":"2026-06-11T09:00:00","slug":"case-study-school-pir-classroom-savings","status":"publish","type":"post","link":"https:\/\/www.pirhome.com\/?p=4173","title":{"rendered":"Case Study: School District Saves $200,000 Annually with PIR Classroom Sensors"},"content":{"rendered":"<h2>Overview<\/h2>\n<p>A suburban school district with 25 elementary schools, 500 classrooms, and 10,000 students was facing budget cuts and rising energy costs. The district&#8217;s energy bill was $2.5 million annually, with schools consuming 60% of that during unoccupied hours (evenings, weekends, holidays).<\/p>\n<h2>The Challenge<\/h2>\n<p>The school district faced several specific issues:<\/p>\n<ul>\n<li>Classroom lights were often left on overnight<\/li>\n<li>HVAC systems ran 24\/7 regardless of occupancy<\/li>\n<li>Gymnasiums and cafeterias had unpredictable usage<\/li>\n<li>Energy costs were the second-largest budget item after salaries<\/li>\n<li>Teachers resisted turning off lights due to security concerns<\/li>\n<\/ul>\n<h2>The Solution<\/h2>\n<p>The district implemented a district-wide PIR occupancy sensor program with these specifications:<\/p>\n<ul>\n<li><strong>Sensors:<\/strong> Leviton OSSMT ceiling-mount occupancy sensors<\/li>\n<li><strong>Coverage:<\/strong> 360\u00b0, 30m diameter<\/li>\n<li><strong>Features:<\/strong> Daylight harvesting, adjustable hold times, vacancy mode option<\/li>\n<li><strong>Quantity:<\/strong> 500 classrooms \u00d7 2 sensors each + common areas = 1,200 sensors<\/li>\n<\/ul>\n<p>Key configuration decisions:<\/p>\n<ul>\n<li>Classrooms: Occupancy mode (auto-on), 15-minute hold time<\/li>\n<li>Gymnasiums: Vacancy mode (manual-on), 30-minute hold time<\/li>\n<li>Hallways: Occupancy mode, 5-minute hold time<\/li>\n<li>Restrooms: Vacancy mode, 10-minute hold time<\/li>\n<li>Daylight harvesting enabled in perimeter classrooms (40% of rooms)<\/li>\n<\/ul>\n<h2>Implementation<\/h2>\n<p>The rollout was managed over one summer break to avoid disrupting classes:<\/p>\n<ol>\n<li>Week 1-2: Pilot program at 3 schools (60 classrooms) &#8211; testing and adjustment<\/li>\n<li>Week 3-6: Remaining 22 schools &#8211; full installation<\/li>\n<li>Week 7-8: Staff training and commissioning<\/li>\n<\/ol>\n<p>The total project cost was $240,000 including sensors, installation, and training. A utility rebate of $60,000 reduced the net cost to $180,000.<\/p>\n<h2>Results<\/h2>\n<p>After the first full school year of operation:<\/p>\n<table border=\"1\">\n<thead>\n<th>Metric<\/th>\n<th>Before<\/th>\n<th>After<\/th>\n<th>Reduction<\/th>\n<\/thead>\n<tbody>\n<th>Lighting energy<\/th>\n<p> 1,800,000 kWh<\/th>\n<p> 1,170,000 kWh<\/th>\n<p> 35%<\/th>\n<th>HVAC energy<\/th>\n<p> 2,200,000 kWh<\/th>\n<p> 1,540,000 kWh<\/th>\n<p> 30%<\/th>\n<th>Total energy<\/th>\n<p> 4,000,000 kWh<\/th>\n<p> 2,710,000 kWh<\/th>\n<p> 32%<\/th>\n<th>Annual cost<\/th>\n<p> $400,000<\/th>\n<p> $271,000<\/th>\n<p> $129,000<\/th>\n<\/tbody>\n<p>\u8868<\/p>\n<p>Additional benefits included:<\/p>\n<ul>\n<li>Reduced CO2 emissions by 650 metric tons<\/li>\n<li>Teacher satisfaction improved (lights automatically adjusted)<\/li>\n<li>Maintenance calls reduced (fewer burned-out bulbs)<\/li>\n<li>Extended HVAC equipment life (30% less runtime)<\/li>\n<li>Eligibility for state energy efficiency grants ($50,000)<\/li>\n<\/ul>\n<h2>Key Lessons Learned<\/h2>\n<ol>\n<li><strong>Vacancy mode for gyms saved more energy:<\/strong> Teachers preferred manual-on for large spaces, saving an additional 15%.<\/li>\n<li><strong>Daylight harvesting worked well:<\/strong> Perimeter classrooms saved 20% more than interior rooms.<\/li>\n<li><strong>Hold times needed adjustment:<\/strong> 15 minutes was optimal for classrooms; shorter times caused false-offs during quiet activities.<\/li>\n<li><strong>Staff training was essential:<\/strong> Teachers needed to understand how to override the system.<\/li>\n<li><strong>Maintenance staff appreciated diagnostic LEDs:<\/strong> Quick troubleshooting reduced service calls.<\/li>\n<\/ol>\n<h2>Conclusion<\/h2>\n<p>This case study demonstrates that PIR occupancy sensors can deliver 32% energy savings in elementary schools. The $129,000 annual savings and 16-month payback period made this a successful investment. The key to success was proper sensor selection (360\u00b0 ceiling mount for classrooms) and room-specific configuration.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A suburban school district with 25 elementary schools, 500 classrooms, and 10,000 students was facing budget cuts and rising energy costs. The district&#8217;s energy bill was $2.5 million annually, with schools consuming 60% of that during unoccupied hours (evenings, weekends, holidays). The Challenge The school district faced several specific issues: Classroom lights were often [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-4173","post","type-post","status-publish","format-standard","hentry","category-case-studies"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\r\n<title>Case Study: School District Saves $200,000 Annually with PIR Classroom Sensors - PIRHOME<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"http:\/\/www.pirhome.com\/?p=4173\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Case Study: School District Saves $200,000 Annually with PIR Classroom Sensors - PIRHOME\" \/>\r\n<meta property=\"og:description\" content=\"Overview A suburban school district with 25 elementary schools, 500 classrooms, and 10,000 students was facing budget cuts and rising energy costs. The district&#8217;s energy bill was $2.5 million annually, with schools consuming 60% of that during unoccupied hours (evenings, weekends, holidays). The Challenge The school district faced several specific issues: Classroom lights were often [&hellip;]\" \/>\r\n<meta property=\"og:url\" content=\"http:\/\/www.pirhome.com\/?p=4173\" \/>\r\n<meta property=\"og:site_name\" content=\"PIRHOME\" \/>\r\n<meta property=\"article:published_time\" content=\"2026-06-11T09:00:00+00:00\" \/>\r\n<meta name=\"author\" content=\"nic@nicsky.com\" \/>\r\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\r\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"nic@nicsky.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173#article\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173\"},\"author\":{\"name\":\"nic@nicsky.com\",\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/#\\\/schema\\\/person\\\/41049b5236f9c77c9314997d070db3e3\"},\"headline\":\"Case Study: School District Saves $200,000 Annually with PIR Classroom Sensors\",\"datePublished\":\"2026-06-11T09:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173\"},\"wordCount\":397,\"commentCount\":0,\"publisher\":{\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/#organization\"},\"articleSection\":[\"Case Studies\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"http:\\\/\\\/www.pirhome.com\\\/?p=4173#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173\",\"url\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173\",\"name\":\"Case Study: School District Saves $200,000 Annually with PIR Classroom Sensors - PIRHOME\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/#website\"},\"datePublished\":\"2026-06-11T09:00:00+00:00\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/www.pirhome.com\\\/?p=4173\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/?p=4173#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/www.pirhome.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Case Study: School District Saves $200,000 Annually with PIR Classroom Sensors\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\\\/\\\/www.pirhome.com\\\/#website\",\"url\":\"http:\\\/\\\/www.pirhome.com\\\/\",\"name\":\"PIRHOME\",\"description\":\"PIR &amp; 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