Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Arrays of photovoltaic solar panels are seen at the Tenaska Imperial Solar Energy Center South as the spread of the coronavirus disease (COVID-19) continues in this aerial photo taken over El Centro, California, U.S., May 29, 2020. Picture taken with a drone. REUTERS/Bing Guan

Solar photovoltaic array is seen at a solar power field of the company Celsia, in Yumbo, Colombia, February 6, 2019. Picture taken February 6, 2019. REUTERS/Julia Symmes Cobb

Solar photovoltaic array is seen at a solar power field of the company Celsia, in Yumbo, Colombia, February 6, 2019. Picture taken February 6, 2019. REUTERS/Julia Symmes Cobb

Solar photovoltaic array is seen at a solar power field of the company Celsia, in Yumbo, Colombia, February 6, 2019. Picture taken February 6, 2019. REUTERS/Julia Symmes Cobb

Solar panels are seen on the roof of a public housing block in Singapore September 23, 2018. Picture taken September 23, 2018. REUTERS/Thomas White

A windmill and solar panels stand next to a dam in a drought-effected paddock on farmer Scott Cooper's property named South Park located east of the town of Gunnedah, in New South Wales, Australia, July 21, 2018. REUTERS/David Gray SEARCH "AUSTRALIA DROUGHT" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

Saudi man looks at the solar plant in Uyayna, north of Riyadh, Saudi Arabia April 10, 2018. Picture taken April 10, 2018. REUTERS/Faisal Al Nasser

A solar plant is seen in Uyayna, north of Riyadh, Saudi Arabia April 10, 2018. Picture taken April 10, 2018. REUTERS/Faisal Al Nasser

An array of solar panels is seen in the desert near Victorville, California, U.S. March 28, 2018. REUTERS/Lucy Nicholson

Sheep are herded at a photovoltaic power plant in Allonnes near Le Mans, France January 8, 2018. REUTERS/Stephane Mahe TPX IMAGES OF THE DAY

Sheep are herded at a photovoltaic power plant in Allonnes near Le Mans, France January 8, 2018. REUTERS/Stephane Mahe

Sheep are herded at a photovoltaic power plant in Allonnes near Le Mans, France January 8, 2018. REUTERS/Stephane Mahe

A Pere David's deer rests next to a watering hole and a solar panel in Thompson, Texas on August 30, 2017. Picture taken on August 30, 2017. REUTERS/Adrees Latif TPX IMAGES OF THE DAY

A worker works at a solar power plant by Superblock, Southeast Asia's biggest producer of solar power in Phetchaburi province, Thailand, August 23, 2017. REUTERS/Athit Perawongmetha TPX IMAGES OF THE DAY

A solar panel array can be seen at the Windorah Solar Farm, which was installed by Ergon Energy, near the town of Windorah in outback Queensland, Australia, August 11, 2017. Picture taken August 11, 2017. REUTERS/David Gray TPX IMAGES OF THE DAY

A solar panel array can be seen at the Windorah Solar Farm, which was installed by Ergon Energy, near the town of Windorah in outback Queensland, Australia, August 11, 2017. Picture taken August 11, 2017. REUTERS/David Gray

A solar panel array can be seen at the Windorah Solar Farm, which was installed by Ergon Energy, near the town of Windorah in outback Queensland, Australia, August 11, 2017. Picture taken August 11, 2017. REUTERS/David Gray

A solar array, a linked collection of solar panels, can be seen in front of a residential apartment block in the Sydney suburb of Chatswood in Australia, July 28, 2017. REUTERS/David Gray

A solar array, a linked collection of solar panels, can be seen in front of a residential apartment block in the Sydney suburb of Chatswood in Australia, July 28, 2017. REUTERS/David Gray

A solar array, a linked collection of solar panels, can be seen in front of a residential apartment block in the Sydney suburb of Chatswood in Australia, July 28, 2017. REUTERS/David Gray

A solar array on the roof of WOHA Architects is seen in Singapore June 2, 2017. REUTERS/Thomas White

An array of solar panels are seen in Oakland, California, U.S. December 4, 2016. REUTERS/Lucy Nicholson

Tesla's electric car, Powerwall and solar roof are shown by Tesla Motors Inc Chief Executive Elon Musk, unveiling new energy products aimed at illustrating the benefits of combining his electric car and battery maker with solar installer SolarCity Corp, in Los Angeles, California, U.S., October 28, 2016. REUTERS/Nichola Groom/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE - SEARCH 'BUSINESS WEEK AHEAD NOV 7' FOR ALL IMAGES

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake TPX IMAGES OF THE DAY

A solar panel is shown during installation on a residential roof in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Workers lift a solar panel onto a roof during a residential solar installation in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

A solar installer carries a solar panel during an installation at a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Workers lift a solar panel onto a roof during a residential solar installation in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Multiple homes with solar panels are shown in Scripps Ranch, San Diego, California, U.S. October 5, 2016. Picture taken October 5, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Solar installers from Baker Electric place solar panels on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

A solar installer from Baker Electric installs a solar panel on the roof of a residential home in Scripps Ranch, San Diego, California, U.S. October 14, 2016. Picture taken October 14, 2016. REUTERS/Mike Blake

Multiple homes with solar panels are shown in Scripps Ranch, San Diego, California, U.S. October 5, 2016. Picture taken October 5, 2016. REUTERS/Mike Blake

Multiple homes with solar panels are shown in Scripps Ranch, San Diego, California, U.S. October 5, 2016. Picture taken October 5, 2016. REUTERS/Mike Blake

Multiple homes with solar panels are shown in Scripps Ranch, San Diego, California, U.S. October 5, 2016. Picture taken October 5, 2016. REUTERS/Mike Blake

Multiple homes with solar panels are shown in Scripps Ranch, San Diego, California, U.S. October 5, 2016. Picture taken October 5, 2016. REUTERS/Mike Blake

Solar panels are seen on the roof of a car park in Mountain View, California April 7, 2016. REUTERS/Noah Berger TPX IMAGES OF THE DAY

A solar panel is placed on rubble along a street in the Douma neighbourhood of Damascus, Syria February 9, 2016. REUTERS/Bassam Khabieh

Bricks are placed behind a fence near a closed brick factory on the outskirts of Beijing, China, January, 18, 2016. On the outskirts of Beijing, the disused factories of Chaomidian show the impact of China's drive to shut down thousands of small firms causing big pollution. Amid scrapheaps and idle machinery, the community has clean air these days - and no jobs. Picture taken January 18, 2016. REUTERS/Jason Lee

Dmitry Baikalov, a duty engineer, inspects equipment at the Abakan solar electric station in a suburb of the Siberian town of Abakan, Khakassia Republic, Russia, December 17, 2015. Owned by EuroSibenergo company of the En+ Group, the solar electric plant in Siberia with a generating capacity of 5.2 megawatt (MW) will be in operation on December 21, according to the official representative of the company. Picture taken December 17, 2015. REUTERS/Ilya Naymushin

Solar panels are installed by workers on the Champs Elysees avenue in Paris ahead of ahead of the World Climate Change Conference 2015 (COP21), in Paris, France, November 29, 2015. REUTERS/Benoit Tessier

A cyclist wears a helmet with a solar panel attached as he participates in a march the day before the Paris World Climate Change Conference, along the main street of Adelaide, South Australia November 29, 2015. REUTERS/David Gray

Solaray Director Jonathan Fisk holds an Enphase AC battery at the solar power installation company's Sydney facility, November 24, 2015. Soaring electricity prices, high solar panel uptake and plenty of sunshine are pushing Australia to the forefront of a solar battery storage revolution driven by Silicon Valley firms like Tesla Motors Inc and Enphase. But Australia's political roller coaster, which has seen prime ministers dumped four times in the past three years, largely over climate policy, is hampering the battle against climate change and investment in clean energy. REUTERS/Jason Reed

Solaray Director Jonathan Fisk moves a solar panel at the solar power installation company's Sydney facility, November 24, 2015. Soaring electricity prices, high solar panel uptake and plenty of sunshine are pushing Australia to the forefront of a solar battery storage revolution driven by Silicon Valley firms like Tesla Motors Inc and Enphase. But Australia's political roller coaster, which has seen prime ministers dumped four times in the past three years, largely over climate policy, is hampering the battle against climate change and investment in clean energy. REUTERS/Jason Reed

A solar panel absorbs the sun's rays at Solaray, an installer of solar power solutions in Sydney, November 24, 2015. Soaring electricity prices, high solar panel uptake and plenty of sunshine are pushing Australia to the forefront of a solar battery storage revolution driven by Silicon Valley firms like Tesla Motors Inc and Enphase. But Australia's political roller coaster, which has seen prime ministers dumped four times in the past three years, largely over climate policy, is hampering the battle against climate change and investment in clean energy. REUTERS/Jason Reed

Solaray Director Jonathan Fisk poses next to a solar panel (L) and an Enphase AC battery at the solar power installation company's Sydney facility, November 24, 2015. Soaring electricity prices, high solar panel uptake and plenty of sunshine are pushing Australia to the forefront of a solar battery storage revolution driven by Silicon Valley firms like Tesla Motors Inc and Enphase. But Australia's political roller coaster, which has seen prime ministers dumped four times in the past three years, largely over climate policy, is hampering the battle against climate change and investment in clean energy. REUTERS/Jason Reed

A man stands on debris as he uses solar panels to charge his batteries in the Douma neighborhood of Damascus, Syria November 23, 2015. REUTERS/Bassam Khabieh