央视网消息：这两天，我国在水利、能源、交通等领域一批重大工程迎来关键进展，一起来感受我国经济活力。 黄河古贤水利枢纽工程导流洞贯通 12月28日，黄河古贤水利枢纽工程导流洞顺利贯通，标志着工程取得首个阶段性重大进展。古贤水利枢纽工程位于山西临汾，是黄河水沙调控 体系的关键性工程，建成后将显著提升防洪减灾能力。 国内首台30兆瓦级纯氢燃气轮机发电 12月28日，我国自主研发的国内首台30兆瓦纯氢燃气轮机实现纯氢发电。与同功率火力发电机组相比，该纯氢燃气轮机一年可减少碳排放超过 20万吨，一小时发电量4.8万千瓦时，可满足5500个家庭一天的用电需求。 广东阳信高速12月28日通车 12月28日，广东阳春至信宜高速公路正式通车。高速东起阳江阳春市，西至茂名信宜市粤桂交界处，全长近142公里。通车后，两地车程将从4 小时缩短至1.5小时，实现粤港澳大湾区与广西北部湾经济区快速互联互通。 长三角最深过江地铁隧道顺利贯通 12月27日，南京地铁4号线二期过江隧道顺利贯通。该隧道最低点位于长江水面以下68.58米，是长三角地区目前最深的过江地铁隧道。施工克 服了岩石强度高、刀具磨损严重、掘进效率受限等难题，标志着我国在城 ...

Group 1 - The core viewpoint of the articles highlights the rapid development and significant projects in China's hydrogen energy sector, indicating a transition from pilot exploration to a more structured and impactful phase [1][2][3] - Major hydrogen energy projects have been launched this year, including the world's first 30 MW pure hydrogen gas turbine demonstration project and the largest green hydrogen ammonia project in Inner Mongolia, showcasing China's leadership in renewable hydrogen production [1][2] - The National Energy Administration's report indicates that China accounted for over 50% of the global renewable energy hydrogen production capacity, with a projected hydrogen production and consumption scale exceeding 36.5 million tons in 2024, making it the world's largest [1][3] Group 2 - Technological innovation in hydrogen energy is driving breakthroughs across the entire industry chain, with significant advancements in hydrogen production, storage, and application technologies [2][3] - The first commercial operation of a megawatt-level proton exchange membrane electrolyzer and the completion of a long-distance high-pressure pipeline capable of hydrogen blending are notable achievements in hydrogen production and transportation [3] - The hydrogen energy industry is transitioning from being policy-driven to a dual-driven model involving both policy and market forces, necessitating a systematic approach to overcome existing technological and cost challenges [3][4] Group 3 - Recommendations from experts include accelerating the scale-up of technological equipment, establishing green hydrogen certification systems, and promoting cross-border trade rules to enhance innovation and industry development [4] - The establishment of innovation consortia led by major enterprises is encouraged to facilitate the integration of research, technology transfer, and industrial application [4]