Group 1 - The China Electric Power Construction Group East Survey and Design Research Institute Co., Ltd. has applied for a patent for a maintenance robot designed for wind-solar complementary power generation systems, with the publication number CN120498361A and application date of April 2025 [1] - The patent describes a robot that includes a tracked robot and a maintenance mechanism, which features components for cleaning photovoltaic panels and dust removal from a glass lens cover, allowing for on-demand cleaning to prevent unnecessary wear [1] Group 2 - The China Electric Power Construction Group East Survey and Design Research Institute Co., Ltd. was established in 1993 and is located in Hangzhou, primarily engaged in professional technical services [2] - The company has a registered capital of 257,463.2376 million RMB and has invested in 197 enterprises, participated in 5,000 bidding projects, and holds 5000 patent records along with 155 trademark records [2]