{"id":17285,"date":"2018-02-28T09:46:13","date_gmt":"2018-02-28T14:46:13","guid":{"rendered":"http:\/\/blogs.edf.org\/energyexchange\/?p=17285"},"modified":"2018-02-28T09:48:11","modified_gmt":"2018-02-28T14:48:11","slug":"the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care","status":"publish","type":"post","link":"https:\/\/blogs.edf.org\/energyexchange\/2018\/02\/28\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\/","title":{"rendered":"The energy reality behind Cape Town&#8217;s water crisis \u2013 and why the U.S. should care"},"content":{"rendered":"<p><a href=\"https:\/\/blogs.edf.org\/energyexchange\/wp-content\/blogs.dir\/38\/files\/2018\/02\/SRP-coal-plant-arizona-desert.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-17286\" src=\"https:\/\/blogs.edf.org\/energyexchange\/wp-content\/blogs.dir\/38\/files\/2018\/02\/SRP-coal-plant-arizona-desert-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/blogs.edf.org\/energyexchange\/wp-content\/blogs.dir\/38\/files\/2018\/02\/SRP-coal-plant-arizona-desert-300x200.jpg 300w, https:\/\/blogs.edf.org\/energyexchange\/wp-content\/blogs.dir\/38\/files\/2018\/02\/SRP-coal-plant-arizona-desert.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>In Cape Town, South Africa, the countdown is on for Day Zero when water taps in the city of 4 million people are expected to run dry.<\/p>\n<p>Yet, while this water crisis has been making headlines worldwide, nobody\u2019s talking about the connection between water and energy. In a rapidly changing climate, we should.<\/p>\n<p>Cape Town may be the first major city staring down a water scarcity crisis, but it\u2019s not alone. One-quarter of the world\u2019s large cities, including at least two in the United States, are \u201cwater-stressed,\u201d a\u00a0<a href=\"https:\/\/phys.org\/news\/2014-06-world-big-cities-water-stressed.html\">2014 study found<\/a>.<\/p>\n<p>As it turns out, many of them also happen to rely on the world\u2019s thirstiest energy source: coal.<!--more--><\/p>\n<p><strong>23,000 gallons of water a month to power a single home\u00a0<\/strong><\/p>\n<p>In the symbiotic relationship known as the\u00a0<a href=\"https:\/\/www.edf.org\/energy\/energy-water-nexus\">energy-water nexus<\/a>, we use power to treat and distribute water, while water is used to process and deliver power. This is why our energy choices directly affect our water resources \u2013 and lack thereof.<\/p>\n<p>Traditional power resources such as coal, natural gas and nuclear fission require on average\u00a0<a href=\"https:\/\/www3.epa.gov\/region9\/waterinfrastructure\/waterenergy.html\">25 gallons of water<\/a>\u00a0to produce one kilowatt-hour of electricity. Coal plants top the list; they withdraw between 20 and 60 gallons of water per kilowatt-hour, depending on the plant\u2019s cooling technology.<\/p>\n<p>A typical American home uses about\u00a0<a href=\"https:\/\/www.eia.gov\/tools\/faqs\/faq.php?id=97&amp;t=3\">900 kWh per month<\/a>, which translates into nearly 23,000 gallons of water per household per month \u2013 just for electricity.<\/p>\n<p>Which brings us back to Cape Town:\u00a0<a href=\"https:\/\/data.worldbank.org\/indicator\/EG.ELC.COAL.ZS?locations=ZA\">92 percent of South Africa\u2019s power<\/a>\u00a0comes from coal. So while residents may be taking shorter showers and doing their best to conserve water, the country\u2019s power plants are gulping it down.<\/p>\n<p><strong>Is Miami next?<\/strong><\/p>\n<p>Cape Town is in unchartered water territory and with climate change rapidly\u00a0<a href=\"http:\/\/blogs.edf.org\/climate411\/2018\/01\/16\/natural-disasters-are-no-longer-purely-natural\/\">altering temperatures and weather patterns<\/a>, U.S. cities probably aren\u2019t far behind.<\/p>\n<p>Climate predictions show an\u00a0<a href=\"https:\/\/www.theatlantic.com\/science\/archive\/2017\/06\/global-warming-american-south\/532200\/\">increasingly hot and dry America<\/a>\u00a0and the evidence is all too visible.<\/p>\n<p>Only six months after Hurricane Harvey, Texas is back in drought. California could be living through more than\u00a0<a href=\"https:\/\/sf.curbed.com\/2018\/2\/16\/17020648\/drought-california-brown-weather\">a decade of drought<\/a>, which has already upended the state\u2019s agricultural\u00a0industry.<\/p>\n<p>And the water stress is spreading eastward. New England and the Southeast recently suffered unprecedented droughts \u2013 and Miami is now expected to be the\u00a0<a href=\"http:\/\/www.bbc.com\/news\/world-42982959\">first U.S. city to run dry<\/a>.<\/p>\n<p>This trend tells us that now\u2019s the time to have a closer look at the energy-water nexus, and how to make the best use of what water we\u2019ve got left.<\/p>\n<p><strong>These power sources use almost no water<\/strong><\/p>\n<p>The upside of all this is that we have a powerful water conservation tool with multiple co-benefits at our disposal: clean energy. Solar photovoltaics and wind power use virtually no water. Energy efficiency uses none.<\/p>\n<p>To this day,\u00a0<a href=\"https:\/\/www.eia.gov\/energyexplained\/index.cfm?page=electricity_in_the_united_states\">85 percent of U.S. electricity<\/a>\u00a0comes from our thirstiest energy resources,\u00a0fossil fuel and nuclear power plants. Expanding the use of renewable energy and energy efficiency, while weaning ourselves off the thirstiest\u00a0power sources, will lead to huge water savings at the right time.<\/p>\n<p>This is our opportunity here and around the world as we plan for the reliability and\u00a0<a href=\"https:\/\/blogs.edf.org\/energyexchange\/2017\/10\/30\/if-we-dont-talk-about-water-are-we-really-talking-about-resiliency\/\">resilience of our energy<\/a>\u00a0and water systems. It\u2019s no longer possible to ignore the impact our energy sources has on critical water supplies, and vice versa.<\/p>\n<p>We have already begun to turn toward a cleaner energy economy. The question now is whether we can ramp things up before the next big city goes dry.<\/p>\n<p><em>This post originally appeared on our <a href=\"https:\/\/www.edf.org\/blog\/2018\/02\/28\/energy-reality-behind-cape-towns-water-crisis-and-why-us-should-care\">EDF Voices blog<\/a>.<\/em><\/p>\n<p><em>Photo source: <a href=\"https:\/\/srpnewsroom.smugmug.com\/Power-Facilities\/Generating-Stations\/Coronado-Generating-Station\/i-2X5Rh4v\">SRP<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Cape Town, South Africa, the countdown is on for Day Zero when water taps in the city of 4 million people are expected to run dry. Yet, while this water crisis has been making headlines worldwide, nobody\u2019s talking about the connection between water and energy. In a rapidly changing climate, we should. Cape Town &#8230;<\/p>\n","protected":false},"author":7471,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[735],"tags":[],"coauthors":[],"class_list":["post-17285","post","type-post","status-publish","format-standard","hentry","category-energy-water-nexus"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The energy reality behind Cape Town&#039;s water crisis \u2013 and why the U.S. should care - Energy Exchange<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.edf.org\/energyexchange\/2018\/02\/28\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The energy reality behind Cape Town&#039;s water crisis \u2013 and why the U.S. should care - Energy Exchange\" \/>\n<meta property=\"og:description\" content=\"In Cape Town, South Africa, the countdown is on for Day Zero when water taps in the city of 4 million people are expected to run dry. 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Cape Town ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.edf.org\/energyexchange\/2018\/02\/28\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\/\" \/>\n<meta property=\"og:site_name\" content=\"Energy Exchange\" \/>\n<meta property=\"article:published_time\" content=\"2018-02-28T14:46:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-02-28T14:48:11+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/blogs.edf.org\/energyexchange\/wp-content\/blogs.dir\/38\/files\/2018\/02\/SRP-coal-plant-arizona-desert-300x200.jpg\" \/>\n<meta name=\"author\" content=\"Kate Zerrenner\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@KateZerrenner\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kate Zerrenner\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/\"},\"author\":{\"name\":\"Kate Zerrenner\",\"@id\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/#\\\/schema\\\/person\\\/c9edbe68edc1e8b42a706ed32dc3a3f2\"},\"headline\":\"The energy reality behind Cape Town&#8217;s water crisis \u2013 and why the U.S. should care\",\"datePublished\":\"2018-02-28T14:46:13+00:00\",\"dateModified\":\"2018-02-28T14:48:11+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/\"},\"wordCount\":594,\"commentCount\":2,\"image\":{\"@id\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/wp-content\\\/blogs.dir\\\/38\\\/files\\\/2018\\\/02\\\/SRP-coal-plant-arizona-desert-300x200.jpg\",\"articleSection\":[\"Energy-Water Nexus\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/\",\"url\":\"https:\\\/\\\/blogs.edf.org\\\/energyexchange\\\/2018\\\/02\\\/28\\\/the-energy-reality-behind-cape-towns-water-crisis-and-why-the-u-s-should-care\\\/\",\"name\":\"The energy reality behind Cape Town's water crisis \u2013 and why the U.S. should care - 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