In this Wednesday, May 13, 2015 photo, some of the more than 37,000 solar panels gather sunlight at the Space Coast Next Generation Solar Center, in Merritt Island, Fla. Industry experts rank Florida third in the nation in rooftop solar energy potential but 13th in the amount of solar energy generated. Renewable energy experts and the solar industry say Florida lags behind because the state is one of only four that require solar energy to be sold exclusively by utilities. (Photo by John Raoux/AP Photo)





The new solar power plant "Gemasolar" is pictured the day of its inauguration in Fuentes de Andalucia, southern Spain in this October 4, 2011 file photo. (Photo by Marcelo del Pozo/Reuters)





A worker checks a panel at a high-concentration photovoltaic (HCPV) solar energy power plant in Lujhu Township of Kaohsiung County, southern Taiwan, in this January 22, 2010 file photo. (Photo by Nicky Loh/Reuters)





A general view shows solar panels to produce renewable energy at the photovoltaic park in Les Mees, in the department of Alpes-de-Haute-Provence, southern France in this March 31, 2015 file photo. (Photo by Jean-Paul Pelissier/Reuters)





A worker walks among solar panels at a solar power field in Kawasaki, near Tokyo in this June 27, 2011 file photo. One by one, Japan is turning off the lights at the giant oil-fired power plants that propelled it to the ranks of the world's top industrialised nations. With nuclear power in the doldrums after the Fukushima disaster, it's solar energy that is becoming the alternative. Solar power is set to become profitable in Japan as early as this quarter, according to the Japan Renewable Energy Foundation (JREF), freeing it from the need for government subsidies and making it the last of the G7 economies where the technology has become economically viable. (Photo by Toru Hanai/Reuters)





A worker inspects solar panels at a solar Dunhuang, 950km (590 miles) northwest of Lanzhou, Gansu Province in this September 16, 2013 file photo. (Photo by Carlos Barria/Reuters)





Solar panels are pictured on the Marina Barrage building, with the Singapore Flyer observation wheel and office and hotel buildings pictured in the background, in Singapore in this March 25, 2009 file photo. (Photo by Laurence SiMeng Tan/Reuters)





Maintenance officer Wilson Ting of Sunseap Leasing inspects their photovoltaic solar modules on top of a block of Housing Development Board (HDB) public housing estate apartments in Singapore in this April 15, 2015 file photo. (Photo by Edgar Su/Reuters)





Rooftops of solar powered houses are pictured in Ota, 80 km northwest of Tokyo in this October 28, 2008 file photo. One by one, Japan is turning off the lights at the giant oil-fired power plants that propelled it to the ranks of the world's top industrialised nations. With nuclear power in the doldrums after the Fukushima disaster, it's solar energy that is becoming the alternative. Solar power is set to become profitable in Japan as early as this quarter, according to the Japan Renewable Energy Foundation (JREF), freeing it from the need for government subsidies and making it the last of the G7 economies where the technology has become economically viable. (Photo by Yuriko Nakao/Reuters)





A general view shows the PS10 solar plant at "Solucar" solar park in Sanlucar la Mayor, near Seville, in this October 20, 2010 file photo. (Photo by Marcelo del Pozo/Reuters)





Workers walk among newly installed solar panels at a solar power plant in Zhouquan township of Tongxiang, Zhejiang province, China, in this December 18, 2014 file picture. Chinese solar companies will need to raise many billions of dollars in 2015 to fund a big expansion in capacity, a major test of investor confidence in a sector hit hard by the global financial crisis. (Photo by Reuters/Stringer)





Solar panels are seen on the roofs of buildings in Fresno, California, United States May 6, 2015. (Photo by Lucy Nicholson/Reuters)





Newly installed solar panels are seen at the Honduran Solar Energy Company SA (COHESSA) and Solar Power SA (Soupy) solar power plant in Nacaome, Honduras, May 12, 2015. The plant, the largest solar plant in Latin America, can provide more than 10 percent of the electricity needed in the country, according to local officials. (Photo by Jorge Cabrera/Reuters)





A solar Sun Flower designed by filmmaker James Cameron is pictured at MUSE School in Malibu, California May 19, 2015. Designed as functional art pieces, using existing photovoltaic technologies, the Sun Flowers produce between 75% and 90% of the campus’ power depending upon available daylight. (Photo by Jonathan Alcorn/Reuters)





A solar Sun Flower designed by filmmaker James Cameron is pictured at MUSE School in Malibu, California May 19, 2015. (Photo by Jonathan Alcorn/Reuters)





Workers clean photovoltaic panels inside a solar power plant in Gujarat, India, July 2, 2015. India's $100 billion push into solar energy over the next decade will be driven by foreign players as uncompetitive local manufacturers fall by the wayside, no longer protected by government restrictions on the sector. (Photo by Amit Dave/Reuters)





A worker looks at solar panels on the roof deck of a mall in Quezon city, metro Manila July 13, 2015. Solar companies will push the Philippine government to quadruple the size of an incentive scheme for suppliers of the renewable energy and to speed up project approvals, as the country grapples with precarious electricity supply. (Photo by Romeo Ranoco/Reuters)





A vendor measures the length of a solar panel while a buyer looks on at a stall in Manila July 13, 2015. (Photo by Romeo Ranoco/Reuters)





Solar panels are seen on the roof deck of a mall in Quezon city, metro Manila July 13, 2015. (Photo by Romeo Ranoco/Reuters)





A Saudi man walks on a street past a field of solar panels at the King Abdulaziz city of Sciences and Technology, Al-Oyeynah Research Station in this May 21, 2012 file photo. Saudi Arabia's ambitious plans to become a world leader in installed solar power appear to have run into the sand amid disagreements over their scale, ownership and technology. The world's largest crude exporter announced three years ago it wanted to install 41 gigawatts of solar electricity by 2032 to help meet surging local demand for energy as the Saudi population increases rapidly and the economy grows strongly. (Photo by Fahad Shadeed/Reuters)





A Saudi man walks on a street past a field of solar panels at the King Abdulaziz city of Sciences and Technology, Al-Oyeynah Research Station in this May 21, 2012 file photo. (Photo by Fahad Shadeed/Reuters)





Delegates are pictured during the launch event of a solar carport at the Garden City shopping mall in Kenya's capital Nairobi, September 15, 2015. The Africa's largest solar carport with 3,300 solar panels will generate 1256 MWh annually and cut carbon emission by around 745 tonnes per year, according to Solarcentury and Solar Africa. (Photo by Thomas Mukoya/Reuters)





A car is seen parked under solar panels at a solar carport at the Garden City shopping mall in Kenya's capital Nairobi, September 15, 2015. (Photo by Thomas Mukoya/Reuters)





Workers walk past solar panels and wind turbines (rear) at a newly-built power plant in Hami, Xinjiang Uighur Autonomous Region, China, September 17, 2015. China's power consumption in August rose 1.9 percent from a year earlier to 512.4 billion kilowatt-hours (kWh), figures from the country's National Energy Administration (NEA) showed on Tuesday. (Photo by Reuters/Stringer)





A general view shows solar panels installed in the "eco-neighbourhood" Clichy-Batignolles, one of several new ecological housing developments with low energy use and carbon emissions, in Paris, France, October 22, 2015. The city of Paris presented its latest "eco-neighbourhood" ahead of the COP21, the World Climate Summit from November 30 to December 11, 2015. (Photo by Benoit Tessier/Reuters)





A worker inspects solar panels at a solar farm in Dunhuang, 950km (590 miles) northwest of Lanzhou, Gansu Province in this September 16, 2013 file photo. Renewables are powering a rare bright spot in the energy industry, with record job hiring in solar, wind and hydro partly offsetting the biggest round of job losses in the oil and gas sector in almost two decades. The fresh opportunities come as the oil sector is suffering its worst downturn since the late 1990s, encouraging engineering students to rethink their options and even mid-career switches for some who have spent more than a decade in the oil sector. (Photo by Carlos Barria/Reuters)





Solar panels are seen in the Palm Springs area, California in this April 13, 2015 file photo. (Photo by Lucy Nicholson/Reuters)





A Palestinian labourer installs solar panels at a photovoltaic plant in the West Bank city of Jericho in this March 27, 2012 file photo. (Photo by Mohamad Torokman/Reuters)





A tower of Abengoa solar plant at "Solucar" solar park is pictured in Sanlucar la Mayor, near the Andalusian capital of Seville, southern Spain November 13, 2015. (Photo by Marcelo del Pozo/Reuters)





A South African engineer and technician work on the Helio 100 Concentrating Solar Power (CSP) pilot facility at Mariendahl experimental farm of the University of Stellenbosh, South Africa, 02 September 2015. The Helio 100 could become the most cost effective and smallest plug and play solar solution in the world. Using Concentrating Solar Power (CSP) technology, the facility consists of a field of tracking mirrors called heliostats and a small tower that captures concentrated sunlight capable of running a turbine at a 1,000 degrees Celsius. Developed by the Solar Thermal Energy Research Group (STERG) at the University of Stellenbosch in South Africa the Helio 100 is a breakthrough due to the cost effective nature of the facility. Plans to roll out the technology have attracted a German consortium and a Massachusetts Institute of Technology solar company. Previously the worldwide hinderance to the technology was the high costs involved, but now the Helio 100 can be installed anywhere by only two people at a low cost. The pilot project with over 100 heliostats of 2.2 square meters each generates 150 Kilowatts (kW) of power in total enough to power approximately 10 households. (Photo by Nic Bothma/EPA)