GICS Classification for Solar Energy Companies

A leading investment management firm is conducting a thorough analysis of the emerging technology industry, specifically focusing on companies involved in renewable energy solutions. The firm is aware that the Global Industry Classification Standard (GICS) classifies industries primarily based on their economic activities. They need to analyze the differences between the broader industry categories and specific sub-industry classifications to effectively assess investment opportunities.

Which of the following GICS sub-industry classifications would best encompass companies focused on solar energy technology?