German Economy and Climate Minister and Vice Chancellor Robert Habeck tours the Meyer Burger Technology AG, a manufacturer of high-performance photovoltaic cells and modules, guided by CEO Gunter Erfurt, during a two days tour under the heading of "Economy and work in times of crisis", due to Russia's invasion of Ukraine, in Bitterfeld-Wolfen, Germany July 29, 2022. REUTERS/Annegret Hilse 

German Economy and Climate Minister and Vice Chancellor Robert Habeck tours the Meyer Burger Technology AG, a manufacturer of high-performance photovoltaic cells and modules, guided by CEO Gunter Erfurt, during a two days tour under the heading of "Economy and work in times of crisis", due to Russia's invasion of Ukraine, in Bitterfeld-Wolfen, Germany July 29, 2022. REUTERS/Annegret Hilse 

German Economy and Climate Minister and Vice Chancellor Robert Habeck tours the Meyer Burger Technology AG, a manufacturer of high-performance photovoltaic cells and modules, guided by CEO Gunter Erfurt, during a two days tour under the heading of "Economy and work in times of crisis", due to Russia's invasion of Ukraine, in Bitterfeld-Wolfen, Germany July 29, 2022. REUTERS/Annegret Hilse 

Nuno Guedes from Portuguese utility EDP and operation technician Antonio Afonso of the Alto Rabagao Floating Solar Photovoltaic Park pilot project exit a power collection tower at the Alto Rabagao Dam, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Operation electrician Joao Mendes of the Alto Rabagao Floating Solar Photovoltaic Park pilot project, exits a power collection tower at the Alto Rabagao Dam, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Workers of the Alto Rabagao Floating Solar Photovoltaic Park pilot project stand in the interior of a power collection tower at the Alto Rabagao Dam, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Solar panels of the Alto Rabagao Floating Solar Photovoltaic Park pilot project are seen at the Rabagao river basin, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Solar panels of the Alto Rabagao Floating Solar Photovoltaic Park pilot project are seen at the Rabagao river basin, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Workers of the Alto Rabagao Floating Solar Photovoltaic Park pilot project stand in the interior of a power collection tower at the Alto Rabagao Dam, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Solar panels of the Alto Rabagao Floating Solar Photovoltaic Park pilot project are seen at the Rabagao river basin, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Solar panels of the Alto Rabagao Floating Solar Photovoltaic Park pilot project are seen at the Rabagao river basin, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Solar panels of the Alto Rabagao Floating Solar Photovoltaic Park pilot project are seen at the Rabagao river basin, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Visitors and workers of the Alto Rabagao Floating Solar Photovoltaic Park pilot project are seen at the Rabagao river basin, in Montalegre, Portugal, September 22, 2021. Picture taken September 22, 2021. REUTERS/Violeta Santos Moura 

Hoses float as members of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, check a water system at a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

A member of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, tests a water system at a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

A member of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, tests a water system at a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

Members of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, install a pump in a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

Members of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, install a water system at a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

Members of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, check a pump at a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

A member of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, installs a solar cell atop a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

Members of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, assemble a water system at a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

A member of a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, connects a solar panel atop a trajinera boat as part of a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

Moored trajineras are pictured at one of the canals of Xochimilco where a team of researchers from the Center for Research and Advanced Studies (Cinvestav), who developed a method that converts solar energy into photovoltaic energy that activates a pump that sends "nanobubbles" into the water, are running a project to clean the polluted waters at the canals of Xochimilco, in Mexico City, Mexico August 20, 2021. Picture taken August 20, 2021. REUTERS/Toya Sarno Jordan 

A helicopter flies a suspension for solar panels at the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

A group of visitors walk at the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Workers are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Workers are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

Workers place solar panels at the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

Workers measure a suspension for solar panels at the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

A worker prepares solar panels on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

A helicopter flies past the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

Solar panels are seen on the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken with a drone, August 19, 2021. REUTERS/Arnd Wiegmann 

A group of visitors walk at the construction site of a large-scale photovoltaic system of Swiss energy provider Axpo at some 2500 metres above sea level on the dam of Lake Muttsee, Switzerland August 19, 2021. Picture taken August 19, 2021. REUTERS/Arnd Wiegmann 

The Ivanpah Solar Electric Generating System, a solar photovoltaic power plant is seen in California's Mojave Desert, in Nipton, U.S., May 4, 2021. REUTERS/Mike Blake TPX IMAGES OF THE DAY 

The Ivanpah Solar Electric Generating System, a solar photovoltaic power plant is seen in California's Mojave Desert, in Nipton, U.S., May 4, 2021. REUTERS/Mike Blake 

A digital board is seen on the road as the spread of the coronavirus disease (COVID-19) continues in Southport, Britain, April 22, 2020. REUTERS/Phil Noble 

A digital board is seen on the road as the spread of the coronavirus disease (COVID-19) continues in Southport, Britain, April 22, 2020. REUTERS/Phil Noble 

A digital board is seen on the road as the spread of the coronavirus disease (COVID-19) continues in Southport, Britain, April 22, 2020. REUTERS/Phil Noble 

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 

Part of the photovoltaic matrix of the Celsia company, it is seen on the roof of a building, 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 

Part of the photovoltaic matrix of the Celsia company, it is seen on the roof of a building, in Yumbo, Colombia, February 6, 2019. Picture taken February 6, 2019. REUTERS/Julia Symmes Cobb 

Part of the photovoltaic matrix of the Celsia company, it is seen on the roof of a building, 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 

An Electrify SG engineer shows how a PowerPod is installed to record data of photovoltaic solar panels on a rooftop in Singapore, December 18, 2017. Picture taken December 18, 2017. REUTERS/Edgar Su