{"id":197,"date":"2011-09-28T14:15:38","date_gmt":"2011-09-28T19:15:38","guid":{"rendered":"https:\/\/greenbugenergy.com\/?p=197"},"modified":"2022-05-30T11:34:26","modified_gmt":"2022-05-30T16:34:26","slug":"measuring-head","status":"publish","type":"post","link":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head","title":{"rendered":"Measuring head at a water site"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"197\" class=\"elementor elementor-197\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-7a642404 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7a642404\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-538de16b\" data-id=\"538de16b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ab3ed35 elementor-widget elementor-widget-text-editor\" data-id=\"5ab3ed35\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.<\/p><p>\u201cHead&#8221; is the difference between upper water level and lower water level, usually measured in meters or in feet. You need to measure the head wherever you plan on putting in a hydro system, because the head or the amount of distance the water falls determines how much energy there is available in the water to extract.<\/p><p>One thing to keep in mind about head; it\u2019s always changing. Both the upper water level and lower water level usually changes with seasonal changes. In rainy wet seasons flows increase causing the upper water levels to rise and usually the lower waters also. The amount of these changes depends on the specific site and on the particular water course but they have a significant impact on a hydro system and need to be planned for.<\/p><p>Therefore you should never think of head of water as a static number.<\/p><p>The hydro installation you install may be designed for a particular amount of head after considering all the range and duration of heads, but always think of the amount of head as changing, therefore you must think in terms of the duration or length of time each head measurement is present at a site over the course of a year. This is usually presented in the form of a head duration curve.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was. \u201cHead&#8221; is the difference between upper water level and lower &#8230; <a title=\"Measuring head at a water site\" class=\"read-more\" href=\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\" aria-label=\"Read more about Measuring head at a water site\">Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":1593,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[5,86],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Measuring head at a water site - GreenBug Energy - micro hydro<\/title>\n<meta name=\"description\" content=\"There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Measuring head at a water site - GreenBug Energy - micro hydro\" \/>\n<meta property=\"og:description\" content=\"There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\" \/>\n<meta property=\"og:site_name\" content=\"GreenBug Energy - micro hydro\" \/>\n<meta property=\"article:published_time\" content=\"2011-09-28T19:15:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-05-30T16:34:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png\" \/>\n\t<meta property=\"og:image:width\" content=\"120\" \/>\n\t<meta property=\"og:image:height\" content=\"69\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"GBadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"GBadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#article\",\"isPartOf\":{\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\"},\"author\":{\"name\":\"GBadmin\",\"@id\":\"https:\/\/greenbugenergy.com\/#\/schema\/person\/d4fcfec08f648f947448c0b0f1ac255e\"},\"headline\":\"Measuring head at a water site\",\"datePublished\":\"2011-09-28T19:15:38+00:00\",\"dateModified\":\"2022-05-30T16:34:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\"},\"wordCount\":271,\"publisher\":{\"@id\":\"https:\/\/greenbugenergy.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage\"},\"thumbnailUrl\":\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png\",\"articleSection\":[\"Get educated - skills\",\"Micro Hydro Energy - issues &amp; information\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\",\"url\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\",\"name\":\"Measuring head at a water site - GreenBug Energy - micro hydro\",\"isPartOf\":{\"@id\":\"https:\/\/greenbugenergy.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage\"},\"image\":{\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage\"},\"thumbnailUrl\":\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png\",\"datePublished\":\"2011-09-28T19:15:38+00:00\",\"dateModified\":\"2022-05-30T16:34:26+00:00\",\"description\":\"There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.\",\"breadcrumb\":{\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage\",\"url\":\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png\",\"contentUrl\":\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png\",\"width\":120,\"height\":69},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/greenbugenergy.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Measuring head at a water site\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/greenbugenergy.com\/#website\",\"url\":\"https:\/\/greenbugenergy.com\/\",\"name\":\"GreenBug Energy - micro hydro\",\"description\":\"making micro-hydro possible\",\"publisher\":{\"@id\":\"https:\/\/greenbugenergy.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/greenbugenergy.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/greenbugenergy.com\/#organization\",\"name\":\"GreenBug Energy\",\"url\":\"https:\/\/greenbugenergy.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/greenbugenergy.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/Greenbug-logo3-e1409177412153.png\",\"contentUrl\":\"https:\/\/greenbugenergy.com\/wp-content\/uploads\/Greenbug-logo3-e1409177412153.png\",\"width\":390,\"height\":98,\"caption\":\"GreenBug Energy\"},\"image\":{\"@id\":\"https:\/\/greenbugenergy.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/greenbugenergy.com\/#\/schema\/person\/d4fcfec08f648f947448c0b0f1ac255e\",\"name\":\"GBadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/greenbugenergy.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/12dc16b828b5f88318c1299d67c4e0bc?s=96&d=https%3A%2F%2Fgreenbugenergy.com%2Fwp-content%2Fthemes%2Fgreenbug%2Fimages%2Fgreenbuggravatar.png&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/12dc16b828b5f88318c1299d67c4e0bc?s=96&d=https%3A%2F%2Fgreenbugenergy.com%2Fwp-content%2Fthemes%2Fgreenbug%2Fimages%2Fgreenbuggravatar.png&r=g\",\"caption\":\"GBadmin\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Measuring head at a water site - GreenBug Energy - micro hydro","description":"There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head","og_locale":"en_US","og_type":"article","og_title":"Measuring head at a water site - GreenBug Energy - micro hydro","og_description":"There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.","og_url":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head","og_site_name":"GreenBug Energy - micro hydro","article_published_time":"2011-09-28T19:15:38+00:00","article_modified_time":"2022-05-30T16:34:26+00:00","og_image":[{"width":120,"height":69,"url":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png","type":"image\/png"}],"author":"GBadmin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"GBadmin","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#article","isPartOf":{"@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head"},"author":{"name":"GBadmin","@id":"https:\/\/greenbugenergy.com\/#\/schema\/person\/d4fcfec08f648f947448c0b0f1ac255e"},"headline":"Measuring head at a water site","datePublished":"2011-09-28T19:15:38+00:00","dateModified":"2022-05-30T16:34:26+00:00","mainEntityOfPage":{"@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head"},"wordCount":271,"publisher":{"@id":"https:\/\/greenbugenergy.com\/#organization"},"image":{"@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage"},"thumbnailUrl":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png","articleSection":["Get educated - skills","Micro Hydro Energy - issues &amp; information"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head","url":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head","name":"Measuring head at a water site - GreenBug Energy - micro hydro","isPartOf":{"@id":"https:\/\/greenbugenergy.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage"},"image":{"@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage"},"thumbnailUrl":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png","datePublished":"2011-09-28T19:15:38+00:00","dateModified":"2022-05-30T16:34:26+00:00","description":"There are various ways of measuring head at your hydro site as of a certain point in time. Head varies at any site usually, therefore a head measurement should be accompanied by the date it was taken and if possible how long it\u2019s duration was.","breadcrumb":{"@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#primaryimage","url":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png","contentUrl":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/icon_measuring.png","width":120,"height":69},{"@type":"BreadcrumbList","@id":"https:\/\/greenbugenergy.com\/get-educated-skills\/measuring-head#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/greenbugenergy.com\/"},{"@type":"ListItem","position":2,"name":"Measuring head at a water site"}]},{"@type":"WebSite","@id":"https:\/\/greenbugenergy.com\/#website","url":"https:\/\/greenbugenergy.com\/","name":"GreenBug Energy - micro hydro","description":"making micro-hydro possible","publisher":{"@id":"https:\/\/greenbugenergy.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/greenbugenergy.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/greenbugenergy.com\/#organization","name":"GreenBug Energy","url":"https:\/\/greenbugenergy.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/greenbugenergy.com\/#\/schema\/logo\/image\/","url":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/Greenbug-logo3-e1409177412153.png","contentUrl":"https:\/\/greenbugenergy.com\/wp-content\/uploads\/Greenbug-logo3-e1409177412153.png","width":390,"height":98,"caption":"GreenBug Energy"},"image":{"@id":"https:\/\/greenbugenergy.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/greenbugenergy.com\/#\/schema\/person\/d4fcfec08f648f947448c0b0f1ac255e","name":"GBadmin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/greenbugenergy.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/12dc16b828b5f88318c1299d67c4e0bc?s=96&d=https%3A%2F%2Fgreenbugenergy.com%2Fwp-content%2Fthemes%2Fgreenbug%2Fimages%2Fgreenbuggravatar.png&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/12dc16b828b5f88318c1299d67c4e0bc?s=96&d=https%3A%2F%2Fgreenbugenergy.com%2Fwp-content%2Fthemes%2Fgreenbug%2Fimages%2Fgreenbuggravatar.png&r=g","caption":"GBadmin"}}]}},"_links":{"self":[{"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/posts\/197"}],"collection":[{"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/comments?post=197"}],"version-history":[{"count":3,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/posts\/197\/revisions"}],"predecessor-version":[{"id":11242,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/posts\/197\/revisions\/11242"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/media\/1593"}],"wp:attachment":[{"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/media?parent=197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/categories?post=197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/greenbugenergy.com\/wp-json\/wp\/v2\/tags?post=197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}