十年探索，为可再生能源建设提供“张家口样本”

Core Insights - The Zhangjiakou Renewable Energy Demonstration Zone has achieved significant milestones in its ten years since establishment, contributing to the high-quality development of the renewable energy industry in the Beijing-Tianjin-Hebei region and providing a replicable model for China's renewable energy sector [1][3] Group 1: Achievements and Developments - The demonstration zone has effectively utilized its abundant wind and solar resources, leading to breakthroughs in efficient development, intelligent transmission, diversified consumption, and energy storage regulation [1] - Since its approval in 2015, the total renewable energy generation has reached 3,478.64 billion kilowatt-hours, resulting in a reduction of approximately 280 million tons of carbon dioxide emissions [3] - The installed capacity of new energy connected to the grid has surged from 8.42 million kilowatts in 2015 to 42.435 million kilowatts, marking a growth rate of 403.9%, which now accounts for 88.1% of the city's total power generation capacity [3] Group 2: Infrastructure and Capacity - The Zhangbei Renewable Energy Flexible DC Demonstration Project has been completed, with an annual capacity to deliver 14 billion kilowatt-hours of green electricity to Beijing [3] - A 1,000-kilovolt ultra-high voltage clean energy corridor has been established, capable of delivering over 21 billion kilowatt-hours of green electricity annually to Xiong'an [3] - Zhangjiakou has built six power grid transmission channels with a total access capacity of 38 million kilowatts, ranking first in Hebei Province [3]