{"id":1699,"date":"2018-06-12T14:11:01","date_gmt":"2018-06-12T14:11:01","guid":{"rendered":"http:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/?p=1699"},"modified":"2018-06-12T14:11:01","modified_gmt":"2018-06-12T14:11:01","slug":"free-power-from-freeways-china-is-testing-roads-paved-with-solar-panels","status":"publish","type":"post","link":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/2018\/06\/12\/free-power-from-freeways-china-is-testing-roads-paved-with-solar-panels\/","title":{"rendered":"Free Power From Freeways? China Is Testing Roads Paved With Solar Panels"},"content":{"rendered":"<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">JINAN, China \u2014 On a smoggy afternoon, huge log carriers and oil tankers thundered down a highway and hurtled around a curve at the bottom of a hill. Only a single, unreinforced guardrail stood between the traffic and a ravine.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">The route could make for tough driving under any conditions. But experts are watching it for one feature in particular: The highway curve is paved with solar panels.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">\u201cIf it can pass this test, it can fit all conditions,\u201d said Li Wu, the chairman of Shandong Pavenergy, the company that made the plastic-covered solar panels that carpet the road. If his product fares well, it could have a major impact on the renewable energy sector, and on the driving experience, too.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\"><\/aside>\n<\/div>\n<figure class=\"css-18k05cz e1a8i6eb0\" role=\"group\">\n<div class=\"css-1xdhyk6 e1vv25i80\"><span class=\"css-1ly73wi e1afaoz0\">Image<\/span><img decoding=\"async\" class=\"css-1m50asq\" src=\"https:\/\/static01.nyt.com\/images\/2018\/05\/22\/business\/00SolarRoad-2\/merlin_132330233_98fcf2f0-2faf-433a-a10d-0f5a66d5d732-articleLarge.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div><figcaption class=\"css-1giptky e3zkro30\"><span class=\"css-fko7t5 e1olku6u0\">Zhang Hongchao, an engineering professor at Tongji University in Shanghai, helped develop Pavenergy\u2019s solar road surface.<\/span><span class=\"css-vg01wm e18m0s9i0\"><span class=\"css-1ly73wi e1afaoz0\">Credit<\/span>Giulia Marchi for The New York Times<\/span><\/figcaption><\/figure>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">The experiment is the latest sign of China\u2019s desire to innovate in, and dominate, the increasingly lucrative and strategically important market for renewable energy. The country already produces three-quarters of the solar panels sold globally, and its wind-turbine manufacturing industry is also among the world\u2019s largest.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\"><\/aside>\n<\/div>\n<div id=\"story-ad-1-wrapper\" class=\"ResponsiveAd-flexFrame--1PVri ResponsiveAd-storyBodyAd--35v2w\">\n<div class=\"ad story-ad-1-wrapper\">\n<div id=\"story-ad-1\">\n<div id=\"google_ads_iframe_\/29390238\/nyt\/business\/energyenvironment_4__container__\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">The potential appeal of solar roads \u2014 modified solar panels that are installed in place of asphalt \u2014 is clear. Generating electricity from highways and streets, rather than in fields and deserts packed with solar panels, could conserve a lot of land. Those advantages are particularly important in a place like China, a heavily populated country where demand for energy has risen rapidly.<\/p>\n<div class=\"InlineMessage-inline--2ysnq\">\n<div class=\"InlineMessage-topLine--9lEO3\"><\/div>\n<p>You have <strong>4 free articles<\/strong> remaining.<\/p>\n<p><a href=\"https:\/\/www.nytimes.com\/subscription\/multiproduct\/lp8XRTS.html?campaignId=7QX8K&amp;op=1\" target=\"_blank\" rel=\"noreferrer noopener\">Subscribe to The Times<\/a><\/p>\n<div class=\"InlineMessage-bottomLine--3gvLn\"><\/div>\n<div class=\"css-10klw3m optimizelyOK vi_inline\"><\/div>\n<\/div>\n<p class=\"css-1i0edl6 e2kc3sl0\">Because roads run through and around cities, the electricity could be used practically next door to where it is generated. That means virtually no power would be lost in transmission, as can happen with projects in outlying locations. And the land is essentially free, because roads are needed anyway. Roads must be resurfaced every few years at great cost, so the installation of durable solar panels could reduce the price of maintenance.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Solar roads could also change the driving experience. Electric heating strips can melt snow that falls on them. Light-emitting diodes embedded in the surface can provide illuminated signage to direct drivers to exits and alert them to construction and other traffic hazards.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\">\n<div class=\"css-z3qape ek9z99y2\">\n<h2 class=\"css-i1nf0c\">EDITORS\u2019 PICKS<\/h2>\n<article class=\"css-1dr52to ek9z99y0\">\n<div class=\"css-1n47mh1\"><img decoding=\"async\" src=\"https:\/\/static01.nyt.com\/images\/2018\/06\/03\/magazine\/03Eat1-promo\/03Eat1-threeByTwoSmallAt2X.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div>\n<h3 class=\"css-dzavv3 ek9z99y1\">The Corporate Delivery Pie You Secretly Love \u2014 but Better<\/h3>\n<\/article>\n<article class=\"css-1dr52to ek9z99y0\">\n<div class=\"css-1n47mh1\"><img decoding=\"async\" src=\"https:\/\/static01.nyt.com\/images\/2018\/05\/28\/us\/politics\/28graham3\/28graham3-threeByTwoSmallAt2X-v5.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div>\n<h3 class=\"css-dzavv3 ek9z99y1\">The Evangelical Fight to Win Back California<\/h3>\n<\/article>\n<article class=\"css-1dr52to ek9z99y0\">\n<div class=\"css-1n47mh1\"><img decoding=\"async\" src=\"https:\/\/static01.nyt.com\/images\/2017\/03\/06\/business\/06timeinc2\/06timeinc2-threeByTwoSmallAt2X-v2.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div>\n<h3 class=\"css-dzavv3 ek9z99y1\">The Last Days of Time Inc.<\/h3>\n<\/article>\n<\/div>\n<\/aside>\n<\/div>\n<div class=\"css-144qgoe\">\n<div class=\"css-nfnnd5 styles-embeddedInteractive--2frSu styles-sizeMediumInteractive--3izvz\"><\/div>\n<\/div>\n<div id=\"story-ad-2-wrapper\" class=\"ResponsiveAd-storyBodyAd--35v2w\">\n<div id=\"story-ad-2-slug\" class=\"ResponsiveAd-adSlug--3H3QM\">\n<p>ADVERTISEMENT<\/p>\n<\/div>\n<div class=\"ad story-ad-2-wrapper\">\n<div id=\"story-ad-2\">\n<div id=\"google_ads_iframe_\/29390238\/nyt\/business\/energyenvironment_5__container__\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">Now, such roads are finally becoming viable. Prices have fallen drastically in recent years \u2014 thanks in large part to soaring Chinese production, a solar panel costs a tenth of what it did a decade ago. Road builders in China even want to design solar roads that can wirelessly recharge electric cars running on them, emulating <a class=\"css-1g7m0tk\" title=\"\" href=\"https:\/\/www.qualcomm.com\/news\/releases\/2017\/05\/18\/qualcomm-demonstrates-dynamic-electric-vehicle-charging\" target=\"_blank\" rel=\"noopener\">a recent American experiment<\/a>.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">China\u2019s leaders in solar road development are Pavenergy and Qilu Transportation. The two companies are working together here in Jinan, in Shandong Province, with Pavenergy making panels for Qilu, a large, state-owned highway construction and management company that operates the highway.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">The surface of these panels, made of a complex polymer that resembles plastic, has slightly more friction than a conventional road surface, according to Zhang Hongchao, an engineering professor at Tongji University in Shanghai. Professor Zhang, who helped develop Pavenergy\u2019s road surface, said that the friction could be adjusted as needed during the manufacturing process to ensure a level of tire grip equal to that of asphalt.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">The location of the solar road here, on a long curve at the bottom of a hill, was not Pavenergy\u2019s first choice. The site was chosen because of its proximity to an electricity substation, ensuring that it would be connected to the grid. China is adding solar and wind energy sites so fast across the country that power generation projects farther from substations sometimes face delays of years in getting connected.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\"><\/aside>\n<\/div>\n<figure class=\"css-18k05cz e1a8i6eb0\" role=\"group\">\n<div class=\"css-1xdhyk6 e1vv25i80\"><span class=\"css-1ly73wi e1afaoz0\">Image<\/span><\/p>\n<div class=\"css-zjzyr8\">\n<div><img decoding=\"async\" class=\"css-1h6w7uo e1t57l6r0\" src=\"https:\/\/static01.nyt.com\/images\/2018\/05\/22\/business\/00SolarRoad-5\/merlin_132330164_f42f225f-1996-4aea-850c-7ce8eba27c87-superJumbo.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div>\n<\/div>\n<\/div><figcaption class=\"css-1giptky e3zkro30\"><span class=\"css-fko7t5 e1olku6u0\">Solar panels, shown undergoing tests, would likely need to be replaced less often than asphalt roads. But it remains uncertain whether they would be able to take the pounding of millions of tires each year for more than a decade.<\/span><span class=\"css-vg01wm e18m0s9i0\"><span class=\"css-1ly73wi e1afaoz0\">Credit<\/span>Giulia Marchi for The New York Times<\/span><\/figcaption><\/figure>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">The main Western rival to Pavenergy and Qilu is Colas, a French road-building giant that has developed 25 experimental solar roads and parking lots, mostly in France but also in Canada, Japan and the United States. The biggest of Colas\u2019s solar sites, a country road in Normandy that opened a year and a half ago, has only half the surface area of the new solar highway in Jinan. Colas has been leery of putting solar panels on high-speed roads like the Chinese highway because of safety concerns; Professor Zhang said the panels were completely safe.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Still, a litany of outstanding challenges means the wide deployment of solar roads is a long way off.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\"><\/aside>\n<\/div>\n<div id=\"story-ad-3-wrapper\" class=\"ResponsiveAd-flexFrame--1PVri ResponsiveAd-storyBodyAd--35v2w\">\n<div class=\"ad story-ad-3-wrapper\">\n<div id=\"story-ad-3\">\n<div id=\"google_ads_iframe_\/29390238\/nyt\/business\/energyenvironment_6__container__\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">For one, they are less efficient than rooftop solar panels at converting the sun\u2019s light into electricity. They lie flat, and are intermittently covered by vehicles, so solar panels on a road produce only around half the power that rooftop ones tilted toward the sun do.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Solar roads are also more expensive than asphalt. It costs about $120 a square meter, or about $11 a square foot, to resurface and repair an asphalt road each decade. By comparison, Pavenergy and Colas hope to be able to bring the cost of a solar road to $310 to $460 a square meter with mass production.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\"><\/aside>\n<\/div>\n<figure class=\"css-18k05cz e1a8i6eb0\" role=\"group\">\n<div class=\"css-1xdhyk6 e1vv25i80\"><span class=\"css-1ly73wi e1afaoz0\">Image<\/span><\/p>\n<div class=\"css-zjzyr8\">\n<div><img decoding=\"async\" class=\"css-1h6w7uo e1t57l6r0\" src=\"https:\/\/static01.nyt.com\/images\/2018\/05\/22\/business\/00SolarRoad-6\/00SolarRoad-6-superJumbo.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div>\n<\/div>\n<\/div><figcaption class=\"css-1giptky e3zkro30\"><span class=\"css-fko7t5 e1olku6u0\">A machine at Tongji University used to test solar road samples.<\/span><span class=\"css-vg01wm e18m0s9i0\"><span class=\"css-1ly73wi e1afaoz0\">Credit<\/span>Giulia Marchi for The New York Times<\/span><\/figcaption><\/figure>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">Panels on a highway would likely need to be replaced less often than asphalt, Professor Zhang said. And a solar road can produce about $15 a year worth of electricity from each square meter of solar panels. So it could roughly pay for itself, compared with asphalt, over about 15 years.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Less clear is whether the panels would be able to take the pounding of millions of tires each year for more than a decade, or whether they might be stolen.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Several square feet of solar panels disappeared less than a week after they were installed here in late December, raising worries of theft or even industrial espionage.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Local police officers, facing criticism for not providing better security, said that the panels must have been crushed into tiny pieces and scattered by heavy trucks. Pavenergy declined to comment.<\/p>\n<\/div>\n<aside class=\"css-14jsv4e\"><\/aside>\n<\/div>\n<div id=\"story-ad-4-wrapper\" class=\"ResponsiveAd-flexFrame--1PVri ResponsiveAd-storyBodyAd--35v2w\">\n<div class=\"ad story-ad-4-wrapper\">\n<div id=\"story-ad-4\">\n<div id=\"google_ads_iframe_\/29390238\/nyt\/business\/energyenvironment_7__container__\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<figure class=\"css-18k05cz e1a8i6eb0\" role=\"group\">\n<div class=\"css-1xdhyk6 e1vv25i80\"><span class=\"css-1ly73wi e1afaoz0\">Image<\/span><\/p>\n<div class=\"css-zjzyr8\">\n<div><img decoding=\"async\" class=\"css-1h6w7uo e1t57l6r0\" src=\"https:\/\/static01.nyt.com\/images\/2018\/05\/22\/business\/00SolarRoad-7\/merlin_132104639_a58f8f53-34f6-4f90-9ce9-976ccc8f876c-superJumbo.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" alt=\"\" \/><\/div>\n<\/div>\n<\/div><figcaption class=\"css-1giptky e3zkro30\"><span class=\"css-fko7t5 e1olku6u0\">Generating solar electricity along highways and streets rather than in fields and deserts could conserve a lot of land in China, where demand for energy has risen rapidly.<\/span><span class=\"css-vg01wm e18m0s9i0\"><span class=\"css-1ly73wi e1afaoz0\">Credit<\/span>Giulia Marchi for The New York Times<\/span><\/figcaption><\/figure>\n<div class=\"css-18sbwfn StoryBodyCompanionColumn\">\n<div class=\"css-1h6whtw\">\n<p class=\"css-1i0edl6 e2kc3sl0\">In the United States, installing solar roads is more complicated.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">With the exception of some bridges and sections of interstate highways, American roads tend to be built with a lot of asphalt, but with less concrete underneath than roads elsewhere, said Kara M. Kockelman, a transportation engineering professor at the University of Texas.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">The problem with asphalt is that it compresses slightly under the weight of trucks. The blue silicon of solar cells, the panels\u2019 electricity-generating component, can withstand being mashed by many tons of weight. But the nearly paper-thin cells snap when bent, like a thin sheet of sugar. (This is not as much of an issue in China, where highways are built with very thick concrete bases.)<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">Still, executives here are hopeful. They say that the technology is ready and that they are not concerned even by the complications of American highway construction.<\/p>\n<p class=\"css-1i0edl6 e2kc3sl0\">\u201cIf conditions permit,\u201d Xu Chunfu, Qilu\u2019s chairman, said, \u201cI would like to build a solar road in the United States.\u201d<\/p>\n<\/div>\n<\/div>\n<div class=\"bottom-of-article\">\n<div class=\"css-a7wxe6\"><\/div>\n<div class=\"css-k8fkhk\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>JINAN, China \u2014 On a smoggy afternoon, huge log carriers and oil tankers thundered down a highway and hurtled around a curve at the bottom of a hill. Only a single, unreinforced guardrail stood between the traffic and a ravine. The route could make for tough driving under any conditions. But experts are watching it for one feature in particular:&#8230; <a href=\"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/2018\/06\/12\/free-power-from-freeways-china-is-testing-roads-paved-with-solar-panels\/\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":48,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1699","post","type-post","status-publish","format-standard","hentry","category-article"],"_links":{"self":[{"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/posts\/1699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/users\/48"}],"replies":[{"embeddable":true,"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/comments?post=1699"}],"version-history":[{"count":1,"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/posts\/1699\/revisions"}],"predecessor-version":[{"id":1700,"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/posts\/1699\/revisions\/1700"}],"wp:attachment":[{"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/media?parent=1699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/categories?post=1699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baileyonlineclassroom.com\/eastasiaandoceaniablog\/wp-json\/wp\/v2\/tags?post=1699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}