Economics

Riding the ‘Solarcoaster’ as Shares Plunge Even More Than Coal

  • SolarCity shares slump as analysts question business model
  • SunEdison bankruptcy raised questions on industry strategies

This photo taken on September 24, 2015 shows photovoltaic panels in Ungersheim, eastern France. AFP PHOTO / SEBASTIEN BOZON (Photo credit should read SEBASTIEN BOZON/AFP/Getty Images)

Photographer: SEBASTIEN BOZON/AFP/Getty Images
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For all the upbeat forecasts about the growth of solar power, this is a punishing year for the industry. And it won’t improve anytime soon.

SunEdison Inc., the world’s biggest clean-energy company, is bankrupt. Yingli Green Energy Holding Co., once the top panel maker, warned it may be inching toward default. And SolarCity Corp., the largest U.S. rooftop installer, plunged as much as 27 percent Tuesday after scaling back its installation forecast for the third time in seven months.