"In March 2021, against this backdrop, the Group announced the Tohoku Electric Power Group Carbon Neutral Challenge 2050." (Tohoku Electric Power Group Integrated Report 2021, pg. 04) - 

"We will proactively assume the challenge of carbon neutrality by 2050, based on the major prerequisite of securing S+3E" (Tohoku Electric Power Group Integrated Report 2021, pg. 59)