{"id":12470,"date":"2016-03-01T15:09:49","date_gmt":"2016-03-01T21:09:49","guid":{"rendered":"http:\/\/blogs.edf.org\/energyexchange\/?p=12470"},"modified":"2026-03-14T14:44:26","modified_gmt":"2026-03-14T18:44:26","slug":"why-isnt-texas-saving-energy-and-water-through-solar-floatovoltaics","status":"publish","type":"post","link":"https:\/\/blogs.edf.org\/energyexchange\/2016\/03\/01\/why-isnt-texas-saving-energy-and-water-through-solar-floatovoltaics\/","title":{"rendered":"Why Isn\u2019t Texas Saving Energy and Water through Solar Floatovoltaics?"},"content":{"rendered":"<p>Symbiosis \u2013 in which different species have a cooperative or mutually beneficial relationship \u2013 is everywhere in nature: honeybees receive vital nutrients from flowers while delivering pollen (male) directly to the female parts of the flower; pilot fish gain protection from predators, while sharks gain freedom from parasites; and dogs protect their owners, while receiving food and shelter. Cited by <a href=\"http:\/\/evolution.berkeley.edu\/evolibrary\/article\/history_24\">some scientists<\/a> as a major driver of evolution, symbiosis has played an important role in the mutual survival of certain species.<\/p>\n<p>Two elements in nature that are also very symbiotic are energy and water: It takes water to produce and distribute energy, while energy is used to treat, pump, and distribute water. This inextricable link is knowns as the <a href=\"https:\/\/www.edf.org\/energy\/energy-water-nexus\">energy-water nexus<\/a>. Yet, energy and water planners do not treat these important resources as symbiotic \u201cspecies,\u201d resulting in a lot of waste \u2013 something we cannot afford with climate change on the rise.<\/p>\n<p>Floating solar panels atop bodies of water, or the cleverly nicknamed \u201cfloatovoltaics,\u201d are a possible solution for both energy and water challenges. The panels help to reduce evaporation of water \u2013 critical in hot, dry places like Texas and California \u2013 and the water helps to keep the panels cool, increasing their efficiency. Plus, compared to more traditional fuel sources, solar PV requires little to no water to produce electricity. Incorporating more solar energy and relying less on coal or natural gas means greater water savings overall.<\/p>\n<p>Floatovoltaics seem like a win-win solution, but it\u2019s not being deployed on a large scale yet. Some countries and U.S. states have surged ahead in testing this technology. So why isn\u2019t a state like Texas, with big reservoirs, crippling droughts, and lots of solar potential, taking this bull by the horns?<!--more--><\/p>\n<p><strong>International and domestic floatovoltaic leaders<\/strong><\/p>\n<p>Several countries are embracing the inventive energy-water solution:<\/p>\n<p><strong>&#8211;Japan<\/strong>: The largest floating solar plant in the world is underway at the <a href=\"http:\/\/global.kyocera.com\/news\/2016\/0102_knds.html\">Yamakura Dam<\/a> near Tokyo. According to the plant\u2019s developer, it will generate \u201cenough electricity to power approximately 4,970 typical households \u2014 while offsetting about 8,170 tons of CO2 emissions annually. This is equal to 19,000 barrels of oil consumed.\u201d That\u2019s an impressive generating capacity, especially considering Japan\u2019s acute energy demand crisis. In 2015, Japan only produced about <a href=\"https:\/\/www.eia.gov\/beta\/international\/analysis.cfm?iso=JPN\">10 percent<\/a> of its own energy and imported the rest. Since the Fukushima nuclear disaster in 2011, Japan has shifted toward the development of more local, renewable energy, but clearly still has a ways to go before becoming energy independent.<\/p>\n<p>[Tweet &#8220;Why Isn\u2019t Texas Saving Energy and Water through Solar Floatovoltaics?&#8221;]<\/p>\n<p>Solar is also much less of a water hog. Islands always need to protect water resources, and space for solar panels is limited, so capitalizing on \u201cunused\u201d space above the reservoir makes sense. Simultaneously powering and quenching an island nation\u2019s thirst in the face of climate change is a very smart move.<\/p>\n<p><strong>&#8211;England<\/strong>: Europe\u2019s largest floating solar plant is being constructed in the <a href=\"http:\/\/corporate.unitedutilities.com\/4053.aspx\">Queen<\/a> <a href=\"http:\/\/www.thameswater.co.uk\/media\/press-releases\/19301.htm\">Elizabeth<\/a> II Reservoir near London, England. In a nice bit of symmetry, the power generated from the panels will provide electricity for the utility\u2019s nearby water treatment facility, helping Thames Water achieve its goal of self-generating one-third of its power by 2020. This is not the first floating solar plant in the U.K., but its size will dwarf the pilot project that was completed previously.<\/p>\n<p><strong>&#8211;India<\/strong>: Work is underway for the country\u2019s largest project on <a href=\"http:\/\/www.thebetterindia.com\/25317\/countrys-largest-floating-solar-power-plant-come-loktak-lake-manipur\/\">Loktak Lake<\/a>, the biggest freshwater lake in the northeastern state of Manipur. India is also host to a precursor of floating solar: SunEdison India previously launched the\u00a0<a href=\"http:\/\/in.reuters.com\/article\/india-solar-idINKBN0KP0ZO20150116\">Canal Solar Power Project<\/a> in\u00a0Gujarat, using the long network of\u00a0canals across the state to generate electricity from panels that are anchored into concrete blocks on the embankment. Like floatovoltaics, those panels result in less evaporation. In a country struggling with the freshwater needs of its enormous population base, reducing the evaporation rates of the canal water is critical.<\/p>\n<p>And the idea is gaining steam stateside, as well:<\/p>\n<p><strong>&#8211;California<\/strong>: Unsurprisingly, California is a leader in floatovoltaics in the U.S. The state\u2019s clean energy subsidies and incentives, pressure from the drought, and an innovative tech sector have all helped this technology find a foothold. The Wine Country has seen the greatest uptake: Both Napa and Sonoma have floatovoltaic systems underway. In Napa, the <a href=\"http:\/\/farniente.com\/napa-wine-estate\/sustainability\/\">Far Niente winery<\/a>\u00a0(pictured above) installed a system in 2008 that reduces evaporation from the waterway by 70 percent and generates enough power to completely offset the winery\u2019s annual use. <a href=\"https:\/\/sonomacleanpower.org\/wp-content\/uploads\/2014\/02\/SCP-Contracts-to-Build-Floating-Solar.pdf\">Sonoma County<\/a>\u2019s installation, due to come online this year, is expected to generate power for 3,000 homes, making it the second largest floatovoltaic system after Japan\u2019s.<\/p>\n<div class=\"simplePullQuote right\"><p>We store a lot of water in large reservoirs, which could easily lend themselves to floating solar panels.<\/p>\n<\/div>\n<p><strong>&#8211;New Jersey<\/strong>: Probably a surprise to those outside the solar industry, New Jersey is one of the leading solar states in the U.S., beating out sunny spots like Texas, New Mexico, and Nevada (that\u2019s down to politics, not potential). Consequently, New Jersey is home to a floatovoltaic project at the <a href=\"http:\/\/pr.amwater.com\/PressReleases\/releasedetail.cfm?ReleaseID=616356\">Canoe Brook Water Treatment Plant<\/a>, run by New Jersey American Water. The project generates about two percent of the water treatment plant\u2019s power, saving around $16,000 per year.<\/p>\n<p><strong>Why not Texas?<\/strong><\/p>\n<p>Why isn\u2019t Texas further ahead in the clean energy game? It\u2019s a question I ask myself every day, especially when I think about the water-saving aspects of solar panels, both the floating and mounted kind. It comes down to political leadership on clean energy, which is still a struggle in an oil and gas state like Texas.<\/p>\n<p>At the same time, we are a state plagued by droughts, and every policymaker knows that. Texas is likely looking down the barrel of <a href=\"http:\/\/www.myplainview.com\/news\/article_bf2100ea-da63-11e5-876f-a78de2bc37c0.html\">another drought<\/a> \u2013 developing our prime potential for floatovoltaics could help alleviate future stress. We store a lot of water in large reservoirs, which could easily lend themselves to floating solar panels. Or, we could use the technology on cooling ponds at traditional power plants. In addition to generating solar power next to a grid-connected traditional power plant, this would reduce the evaporation of those ponds, a particularly critical issue in our hot summers.<\/p>\n<p>It\u2019s worth noting the floatovoltaic projects underway in other countries and states all have some sort of policy incentive behind them. We need political leadership to encourage the transition to cleaner, water-saving energy sources. With just under a year before our legislators come back to Austin, here\u2019s to hoping they begin to see the symbiotic relationship between energy and water. The evolution and survival of our species depends on it.<\/p>\n<p><em>Photo source: Flickr\/<a class=\"owner-name truncate\" title=\"Go to Thomas Roche's photostream\" href=\"https:\/\/www.flickr.com\/photos\/thomasroche\/\">Thomas Roche<\/a><\/em><\/p>\n<p><em>This post originally appeared on our\u00a0<a href=\"http:\/\/blogs.edf.org\/texascleanairmatters\/2016\/03\/01\/why-isnt-texas-saving-energy-and-water-through-solar-floatovoltaics\/\">Texas Clean Air Matters<\/a>\u00a0blog.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Symbiosis \u2013 in which different species have a cooperative or mutually beneficial relationship \u2013 is everywhere in nature: honeybees receive vital nutrients from flowers while delivering pollen (male) directly to the female parts of the flower; pilot fish gain protection from predators, while sharks gain freedom from parasites; and dogs protect their owners, while receiving &#8230;<\/p>\n","protected":false},"author":7471,"featured_media":12474,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[735,203,181],"tags":[],"coauthors":[114222],"class_list":["post-12470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy-water-nexus","category-solar-energy","category-texas"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Isn\u2019t Texas Saving Energy and Water through Solar Floatovoltaics? 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