A pylon of the V-cableway, a 470 million CHF investment connecting Grindelwald to Maennlichen and Eigergletscher with 2 lifts, is pictured in front of the Eiger mountain during last testings before its opening on December 4, amid the coronavirus disease (COVID-19) outbreak, in the ski resort of Grindelwald, Switzerland November 23, 2020. REUTERS/Denis Balibouse

A technician works in trolley on a double 400.000 high voltage power line during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. REUTERS/Pascal Rossignol

A technician works on a double 400.000 high voltage power line during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. REUTERS/Pascal Rossignol

Technicians work on a double 400.000 high voltage power line pylon during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. Picture taken with a drone. REUTERS/Pascal Rossignol

A technician works in a trolley on a double 400.000 high voltage power line during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. Picture taken with a drone. REUTERS/Pascal Rossignol

Technicians work in trolleys on a double 400.000 high voltage power line during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. REUTERS/Pascal Rossignol

Technicians work in trolleys on a double 400.000 high voltage power line during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. REUTERS/Pascal Rossignol TPX IMAGES OF THE DAY

A technician works in a trolley on a double 400.000 high voltage power line during the installation of spacers on new electrical pylons named Equilibre in Courcelles-les-Lens, near Douai, France, November 18, 2020. Picture taken with a drone. REUTERS/Pascal Rossignol

Electricity pylons stand in the Gobi desert on the outskirts of Dunhuang, Gansu province, China September 19, 2020. REUTERS/Carlos Garcia Rawlins SEARCH "RAWLINS GLACIER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Minibus taxis are parked beneath Eskom's electricity pylons as coronavirus disease (COVID-19) lockdown regulations ease at the Elias Motsoaledi Informal Settlement in Soweto, South Africa, September 17, 2020. REUTERS/Siphiwe Sibeko

Pylons of high-tension electricity power lines and power-generating windmill turbines are seen during sunrise in Avesnes-le-Sec, near Cambrai, France, September 14, 2020. REUTERS/Pascal Rossignol

Pylons of high-tension electricity power lines and power-generating windmill turbines are seen during sunrise in Avesnes-le-Sec, near Cambrai, France, September 14, 2020. REUTERS/Pascal Rossignol

Men play soccer beneath Eskoms elecricity pylons, amid a nationwide coronavirus disease (COVID-19) lockdown in Soweto, south-west of Johannesburg, South Africa August 20, 2020. REUTERS/Siphiwe Sibeko

A rainbow is seen behind electrical pylons in a field near the town of Zhodino, Belarus, July 23, 2020. REUTERS/Vasily Fedosenko

A rainbow is seen behind electrical pylons in a field near the town of Zhodino, Belarus, July 23, 2020. REUTERS/Vasily Fedosenko

A technician works on a high voltage power line pylon during the installation of new electrical pylons named Equilibre in Flers-en-Escrebieux, near Douai, France, July 21, 2020. Picture taken, July 21, 2020 with a drone. REUTERS/Pascal Rossignol

Locals walk past Eskom's electricity pylons as they return from work in Orlando, Soweto township, South Africa, July 20, 2020. Picture taken July 20, 2020. REUTERS/Siphiwe Sibeko

Technicians work on a high voltage power line pylon during the installation of new electrical pylons named Equilibre in Flers-en-Escrebieux, near Douai, France, July 21, 2020. REUTERS/Pascal Rossignol

Technicians work on a high voltage power line pylon during the installation of new electrical pylons named Equilibre in Flers-en-Escrebieux, near Douai, France, July 21, 2020. REUTERS/Pascal Rossignol

Technicians work on a high voltage power line pylon during the installation of new electrical pylons named Equilibre in Flers-en-Escrebieux, near Douai, France, July 21, 2020. REUTERS/Pascal Rossignol

Technicians work on a high voltage power line pylon during the installation of new electrical pylons named Equilibre in Flers-en-Escrebieux, near Douai, France, July 21, 2020. REUTERS/Pascal Rossignol

Technicians work on a high voltage power line pylon during the installation of new electrical pylons named Equilibre in Flers-en-Escrebieux, near Douai, France, July 21, 2020. REUTERS/Pascal Rossignol

A taxi drives past electricity pylons in Orlando, Soweto township, South Africa, July 20, 2020. REUTERS/Siphiwe Sibeko

Building cranes and power lines connecting pylons of high-tension electricity are seen next to a construction site of new apartment blocks in Kyiv, Ukraine July 10, 2020. REUTERS/Valentyn Ogirenko

Electrical power pylons of high-tension electricity power lines are seen next to the EDF power plant in Bouchain, near Valenciennes, France, July 7, 2020. REUTERS/Pascal Rossignol

Electrical power pylons of high-tension electricity power lines are seen next to the EDF power plant in Bouchain, near Valenciennes, France, July 7, 2020. REUTERS/Pascal Rossignol

Electrical power pylons of high-tension electricity power lines are seen next to the EDF power plant in Bouchain, near Valenciennes, France, July 7, 2020. REUTERS/Pascal Rossignol

Electrical power pylons of high-tension electricity power lines are seen next to the EDF power plant in Bouchain, near Valenciennes, France, July 7, 2020. REUTERS/Pascal Rossignol

Men walk past electricity pylons as they return from work in Orlando township, Soweto, South Africa, May 21, 2020. REUTERS/Siphiwe Sibeko

Electricity pylons are seen during sunset in Gavrelle, near Arras, France, April 25, 2020. REUTERS/Pascal Rossignol

Electricity pylons are seen during sunset in Gavrelle, near Arras, France, April 25, 2020. REUTERS/Pascal Rossignol

Electricity pylons are seen during sunset in Gavrelle, near Arras, France, April 25, 2020. REUTERS/Pascal Rossignol

Electricity pylons are seen during sunset in Gavrelle, near Arras, France, April 25, 2020. REUTERS/Pascal Rossignol

Electricity pylons are seen as the spread of the coronavirus disease (COVID-19) continues, in Leicester, Britain, April 25, 2020. REUTERS/Andrew Boyers

An electricity pylon is seen as the spread of the coronavirus disease (COVID-19) continues, in Leicester, Britain, April 25, 2020. REUTERS/Andrew Boyers

A bird flies next to electricity pylons after the air pollution level started to drop during a 21-day nationwide lockdown to slow the spreading of coronavirus disease (COVID-19), in the old quarters of Delhi, India, April 13, 2020. REUTERS/Adnan Abidi

A combination picture shows birds flying next to electricity pylons on October 30, 2019 and after air pollution level started to drop during a 21-day nationwide lockdown to slow the spreading of coronavirus disease (COVID-19), in the old quarters of Delhi, India, April 13, 2020. REUTERS/Adnan Abidi

A worker on an elevated work platform next to a pylon in Gateshead, as the spread of coronavirus disease (COVID-19) continues. Gateshead, Britain, March 25, 2020. REUTERS/Lee Smith

Pylons carry the Beauly to Denny Power line near the Drumochter Pass, Scotland, Britain February 10, 2020. REUTERS/Russell Cheyne

Pylons carry the Beauly to Denny Power line near the Drumochter Pass, Scotland, Britain February 10, 2020. REUTERS/Russell Cheyne

The moon rises as electricians work atop a power pole near the lignite power plant of Neurath of German energy supplier and utility RWE, near Rommerskirchen north-west of Cologne, Germany, February 5, 2020. REUTERS/Wolfgang Rattay

The moon rises as electricians work atop a power pole near the lignite power plant of Neurath of German energy supplier and utility RWE, near Rommerskirchen north-west of Cologne, Germany, February 5, 2020. REUTERS/Wolfgang Rattay

The moon rises as electricians work atop a power pole near the lignite power plant of Neurath of German energy supplier and utility RWE, near Rommerskirchen north-west of Cologne, Germany, February 5, 2020. REUTERS/Wolfgang Rattay

Workers of Torrent Power Limited remove kites and thread tangled up in electric power cables after the end of the kite flying season in Ahmedabad, India, January 16, 2020. REUTERS/Amit Dave TPX IMAGES OF THE DAY

Electricity pylons carrying the Beauly-Denny powerline are seen close to the A9 road, Scotland, Britain January 14, 2020. REUTERS/Russell Cheyne

Power-generating windmill turbines and electrical pylons are pictured during sunset at a wind park in Graincourt-les-Havrincourt, France, January 12, 2020. REUTERS/Pascal Rossignol

Burnt power lines are seen in Mallacoota, Victoria, Australia January 10, 2020. Picture taken January 10, 2020. REUTERS/Tracey Nearmy

Electricity pylons are seen near Tagelswangen, Switzerland January 10, 2020. REUTERS/Arnd Wiegmann

Electricity pylons are seen near Tagelswangen, Switzerland January 10, 2020. REUTERS/Arnd Wiegmann

High-tension electrical power lines are seen at the Costa Sur power plant after the earthquake in Guayanilla, Puerto Rico, January 9, 2020. REUTERS/Marco Bello

High-tension electrical power lines are seen at the Costa Sur power plant after the earthquake in Guayanilla, Puerto Rico January 9, 2020. REUTERS/Marco Bello

High-tension electrical power equipment are seen at the Costa Sur power plant are seen after the earthquake in Guayanilla, Puerto Rico January 9, 2020. REUTERS/Marco Bello

The sun shines over high-voltage power lines and electricity pylons at a highway front of the solar park of Benban plant in Aswan, Egypt, November 17, 2019. Picture taken November 17, 2019. REUTERS/Amr Abdallah Dalsh

Birds fly next to electricity pylons on a smoggy morning in the old quarters of Delhi, India, December 12, 2019. REUTERS/Anushree Fadnavis

A farmer in a tractor shouts slogans, using a pylon, during a protest about the lack of propane due to the Canadian National Railway (CN Rail) strike in Montreal, Quebec, Canada November 25, 2019. REUTERS/Christinne Muschi

A farmer in a tractor shouts slogans, using a pylon, during a protest about the lack of propane due to the Canadian National Railway (CN Rail) strike in Montreal, Quebec, Canada November 25, 2019. REUTERS/Christinne Muschi

An electricity pylon is seen near the city of Halle, Belgium, November 19, 2019 REUTERS/Yves Herman

Nov 16, 2019; Waco, TX, USA; A view of an end zone pylon and the Big 12 logo and the Baylor university logo during the game between the Bears and the Sooners at McLane Stadium. Mandatory Credit: Jerome Miron-USA TODAY Sports

Pylons of high-tension electricity power lines are seen near the Bugey Nuclear Power Plant after heavy snowfall in Saint -Vulbas, France, November 15, 2019. REUTERS/Emmanuel Foudrot

Pylons of high-tension electricity power lines are seen after heavy snowfall in Saint -Vulbas, France, November 15, 2019. REUTERS/Emmanuel Foudrot