{"id":23396,"date":"2025-12-15T16:06:33","date_gmt":"2025-12-15T16:06:33","guid":{"rendered":"https:\/\/chariotenergy.com\/chariot-university\/geothermal-energy\/"},"modified":"2025-12-16T21:30:28","modified_gmt":"2025-12-16T21:30:28","slug":"geothermal-energy","status":"publish","type":"page","link":"https:\/\/chariotenergy.com\/chariot-university\/geothermal-energy\/","title":{"rendered":"Geothermal Energy Explained"},"content":{"rendered":"<style>\n.chariot-article {\n  max-width: 800px;\n  margin: 0 auto;\n  padding: 40px;\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, sans-serif;\n  font-size: 18px;\n  line-height: 1.8;\n  color: #333;\n}\n.chariot-article h1 {\n  font-size: 2.5em;\n  font-weight: 700;\n  line-height: 1.2;\n  margin: 0 0 30px 0;\n  color: #1a1a1a;\n}\n.chariot-article h2 {\n  font-size: 1.8em;\n  font-weight: 600;\n  line-height: 1.3;\n  margin: 50px 0 20px 0;\n  color: #1a1a1a;\n  border-bottom: 2px solid #f7931e;\n  padding-bottom: 10px;\n}\n.chariot-article h3 {\n  font-size: 1.4em;\n  font-weight: 600;\n  line-height: 1.4;\n  margin: 40px 0 15px 0;\n  color: #333;\n}\n.chariot-article h4 {\n  font-size: 1.2em;\n  font-weight: 600;\n  margin: 30px 0 10px 0;\n  color: #444;\n}\n.chariot-article p {\n  margin: 0 0 20px 0;\n}\n.chariot-article img {\n  max-width: 100%;\n  height: auto;\n  border-radius: 8px;\n  margin: 30px 0;\n  display: block;\n}\n.chariot-article figure {\n  margin: 30px 0;\n}\n.chariot-article figcaption {\n  font-size: 0.9em;\n  color: #666;\n  text-align: center;\n  margin-top: 10px;\n  font-style: italic;\n}\n.chariot-article ul, .chariot-article ol {\n  margin: 20px 0 20px 30px;\n  padding: 0;\n}\n.chariot-article li {\n  margin-bottom: 12px;\n  line-height: 1.6;\n}\n.chariot-article a {\n  color: #f7931e;\n  text-decoration: none;\n  border-bottom: 1px solid transparent;\n  transition: border-color 0.2s;\n}\n.chariot-article a:hover {\n  border-bottom-color: #f7931e;\n}\n.chariot-article blockquote {\n  border-left: 4px solid #f7931e;\n  margin: 30px 0;\n  padding: 20px 30px;\n  background: #f9f9f9;\n  font-style: italic;\n  color: #555;\n}\n.chariot-article strong {\n  font-weight: 600;\n  color: #1a1a1a;\n}\n.chariot-article em {\n  font-style: italic;\n}\n.chariot-article hr {\n  border: none;\n  border-top: 1px solid #e0e0e0;\n  margin: 40px 0;\n}\n.chariot-article table {\n  width: 100%;\n  border-collapse: collapse;\n  margin: 30px 0;\n}\n.chariot-article th, .chariot-article td {\n  padding: 12px 15px;\n  text-align: left;\n  border-bottom: 1px solid #e0e0e0;\n}\n.chariot-article th {\n  background: #f5f5f5;\n  font-weight: 600;\n}\n@media (max-width: 768px) {\n  .chariot-article {\n    padding: 20px;\n    font-size: 16px;\n  }\n  .chariot-article h1 { font-size: 2em; }\n  .chariot-article h2 { font-size: 1.5em; }\n  .chariot-article h3 { font-size: 1.25em; }\n}\n<\/style>\n<div class=\"chariot-article\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" alt=\"\" class=\"wp-image-4205\" decoding=\"async\" fetchpriority=\"high\" height=\"1000\" src=\"https:\/\/chariotenergy.com\/wp-content\/uploads\/2025\/12\/geothermal-energy-1-1.jpg\" width=\"1500\" title=\"\"><\/figure>\n<p>While everyone knows about <a href=\"https:\/\/chariotenergy.com\/chariot-university\/what-is-wind-energy\/\">wind<\/a> and <a href=\"https:\/\/chariotenergy.com\/chariot-university\/what-is-solar-energy\/\">solar power<\/a>, geothermal energy is another very promising renewable energy resource that deserves your attention. Like wind and solar, it\u2019s considered <a href=\"https:\/\/chariotenergy.com\/blog\/what-is-green-energy\/\">green energy<\/a>, which is considered the <em>most <\/em>environmentally friendly energy source available to us today. Geothermal has the potential to change our lives for good, so knowing more about it can only bring about better understanding and \u2014 <em>hopefully <\/em>\u2014 change!<\/p>\n<p>The question is: Is geothermal energy renewable?<\/p>\n<h2 class=\"wp-block-heading\">What is Geothermal Energy?<\/h2>\n<p>The word \u201cgeothermal\u201d is Greek in origin, with the prefix <em>geo- <\/em>meaning earth and <em>thermal <\/em>meaning heat. Thus, whereas solar and wind come from the sun, geothermal energy comes from deep within our planet. However, while that heat can certainly be used to warm homes or take a relaxing dip in a hot spring, it can\u2019t create electricity on its own.\u00a0<\/p>\n<h2 class=\"wp-block-heading\">How Does Geothermal Energy Work?<\/h2>\n<p>In most cases, geothermal energy is used to heat water either deep within the earth\u2019s crust or on the surface. As the water evaporates from a geothermal resevoir, it creates steam to power turbines that transform the kinetic energy into electricity.\u00a0<\/p>\n<p>Accessing this energy, however, is somewhat limited. No matter where you dig, you\u2019ll eventually find a viable source of heat for a potential geothermal system. But our current technology limits us only to places where pieces of the earth\u2019s crust \u2014 also called tectonic plates \u2014 meet. These are where geothermal energy is most easily accessible to us.\u00a0<\/p>\n<p>Therefore, it\u2019s easy to see why countries like Iceland, El Salvador and the Philippines generate at least 15% of their electricity using geothermal heating. All three countries are located near a tectonic boundary and thus have an ample supply of natural geothermal resources. In fact, 90% of Iceland\u2019s households use geothermal energy for heating.<sup>1<\/sup>\u00a0<\/p>\n<p>However, it might come as a surprise that the United States is actually the world\u2019s leader in geothermal-produced electricity. The state of California is home to the world\u2019s largest geothermal system, known as The Geysers. As of 2021, the complex contains 13 operating geothermal plants and 300+ steam wells, accounting for about 10% of all of California\u2019s renewable energy generation.\u00a0<\/p>\n<p>California\u2019s Geysers represent the dry steam method for converting geothermal into electricity. But that\u2019s not the only way to harness this green energy source. Several innovations in geothermal technology have allowed us to capture and convert several different types of geothermal activity.<\/p>\n<figure class=\"wp-block-image size-full\"><img alt=\"\" class=\"wp-image-4206\" decoding=\"async\" height=\"1001\" src=\"https:\/\/chariotenergy.com\/wp-content\/uploads\/2025\/12\/iceland-geothermal-plant.jpg\" width=\"1500\" title=\"\"><figcaption class=\"wp-element-caption\">Geothermal power plants in Iceland<\/figcaption><\/img><\/figure>\n<h2 class=\"wp-block-heading\">The Different Applications of Geothermal Energy<\/h2>\n<p>There are three different categories of geothermal technologies:<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>High temperature<\/strong> or <strong>mature <\/strong>fields, which are used to produce electricity at scale<\/li>\n<li><strong>Medium temperature<\/strong> fields, which are mainly used to heat homes and businesses<\/li>\n<li><strong>Low temperature<\/strong> fields, which are mostly used to heat homes<\/li>\n<\/ul>\n<h3 class=\"has-luminous-vivid-orange-color has-text-color wp-block-heading\">Dry Steam Power Plants<\/h3>\n<p>Dry steam geothermal power plants like The Geysers in California were the first of their kind invented to create electricity. They are most often considered high temperature fields as steam from the earth is directly pumped to drive a generator and produce electricity.\u00a0<\/p>\n<h3 class=\"has-luminous-vivid-orange-color has-text-color wp-block-heading\">Flash Steam Power Plants<\/h3>\n<p>Flash steam power plants unseated dry steam as the most common geothermal system in place today. To generate electricity, fluid is pumped under high pressure into a lower-pressure tank. This change in pressure causes the fluid to evaporate, which drives the turbine.<\/p>\n<h3 class=\"has-luminous-vivid-orange-color has-text-color wp-block-heading\">Binary Cycle Power Plants<\/h3>\n<p>The third available method, binary cycle plants, uses a heat exchanger and is more commonly used for medium temperature fields. The hot fluid beneath the earth \u201cexchanges\u201d its heat energy to another fluid with a lower boiling temperature within the turbine. The steam from the second fluid then spins the turbine to create electricity.\u00a0<\/p>\n<h3 class=\"has-luminous-vivid-orange-color has-text-color wp-block-heading\">Geothermal Water Heaters<\/h3>\n<p>In Iceland, geothermally heated water is common for all manner of uses. Not only is it used to provide their homes with natural hot water without a water heater, but it\u2019s also their main source of drinking water, as it\u2019s been purified and cooled. Moreover, Iceland also uses geothermal waters to keep its roads free of snow during winter.\u00a0<\/p>\n<h3 class=\"has-luminous-vivid-orange-color has-text-color wp-block-heading\">Geothermal Heating and Cooling Pumps<\/h3>\n<p>Geothermal energy can also be used to heat and cool homes worldwide, not just in Iceland. Approximately 10 feet below the earth\u2019s surface, temperatures are consistently between 50\u00b0F and 60\u00b0F. Scientists have learned how to utilize this constant temperature through geothermal heat pumps to heat and cool homes all year round without using an HVAC.<\/p>\n<h2 class=\"wp-block-heading\">Geothermal Energy Pros and Cons<\/h2>\n<p>There are many advantages to integrating geothermal energy into our everyday energy mix:\u00a0<\/p>\n<ul class=\"wp-block-list\">\n<li>Geothermal energy produces no carbon emissions<\/li>\n<li>It\u2019s one of the most sustainable forms of energy, along with solar and wind<\/li>\n<li>Geothermal is not dependent on weather conditions, making it a very reliable source of renewable energy<\/li>\n<li>Reduces our need for fossil fuels to power our lives<\/li>\n<\/ul>\n<p>That said, several challenges remain before widespread adoption of geothermal can happen:<\/p>\n<ul class=\"wp-block-list\">\n<li>Geothermal electricity production is almost completely dependent on the location of the earth\u2019s tectonic plates<\/li>\n<li>The upfront costs to build and drill wells for geothermal power generation can be expensive<\/li>\n<li>Geothermal activity can produce other emissions like sulfur dioxide and hydrogen sulfide, which present problems of their own<\/li>\n<li>Geothermal power plants have been known to cause tremors in the areas near and around tectonic plates<\/li>\n<\/ul>\n<figure class=\"wp-block-image size-full\"><img alt=\"Wind Turbines Brown Mountain Range\" class=\"wp-image-2896\" decoding=\"async\" height=\"853\" src=\"https:\/\/chariotenergy.com\/wp-content\/uploads\/2025\/12\/wind-turbines-brown-mountains.jpg\" width=\"1280\" title=\"\"><\/figure>\n<h2 class=\"wp-block-heading\">Geothermal is Only One Piece of the Renewable Energy Puzzle<\/h2>\n<p>The energy industry is changing, and renewable resources like geothermal, solar, wind, biomass, and hydropower will be the way forward. Therefore, learning more about them and understanding where they come from will be one step closer to a better, brighter future.\u00a0<\/p>\n<p>To learn more about green energy, green living and all things sustainability, check out our <a href=\"https:\/\/chariotenergy.com\/chariot-university\/\">Chariot University<\/a> page and the <a href=\"https:\/\/chariotenergy.com\/blog\/\">Chariot Energy blog<\/a>!\u00a0<\/p>\n<p><strong>Sources<\/strong>:<\/p>\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/nea.is\/geothermal\/direct-utilization\/nr\/91\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/nea.is\/geothermal\/direct-utilization\/nr\/91<\/a>\u00a0<\/li>\n<\/ol>\n<div class=\"clear\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Geothermal energy is a green energy resource used to generate electricity at scale while also providing hot water and emissions-free heating to millions.<\/p>\n","protected":false},"author":5,"featured_media":23609,"parent":627,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-23396","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/pages\/23396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/comments?post=23396"}],"version-history":[{"count":0,"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/pages\/23396\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/pages\/627"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/media\/23609"}],"wp:attachment":[{"href":"https:\/\/chariotenergy.com\/wp-json\/wp\/v2\/media?parent=23396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}