Group 1 - The "2024 Electric Power Construction Project Cost Index (ECCI)" indicates a steady decline in the unit cost of onshore wind power projects over the next three years, while offshore wind power project costs are expected to decrease further and gradually return to reasonable levels [1][2] - China maintains its leading position in renewable energy, with wind power installed capacity ranking first globally for 15 consecutive years and solar power for 10 years. In 2024, the combined installed capacity of wind and solar in China accounts for 47% of the global total, with new installations representing 63% of the global market [1] - The past five years have seen a general increase in the unit costs of thermal power, hydropower, and grid projects due to rising construction site-related investments. In contrast, the unit costs of wind and solar power projects have decreased due to industry development, technological advancements, and a significant drop in equipment material prices [1] Group 2 - Future predictions for the electric power engineering cost index suggest that the unit cost of thermal power projects will remain stable with slight increases, while hydropower costs are expected to rise. Onshore wind power costs will continue to decline, and offshore wind power costs will return to reasonable levels. In contrast, deep-sea wind power costs are projected to increase, and solar power costs will initially decrease before stabilizing [2] - The Ministry of Housing and Urban-Rural Development emphasizes the importance of cost management in engineering as a key area for national economic and social development, advocating for market-oriented reforms, digital thinking, and standardized advancement [2]

为确保工程安全高效推进，国网四川电力秉持"六精四化"建设理念，紧盯关键节点，科 学组织施工。通过深化政企协作，积极争取各级政府支持，合力破解工程建设难题。在安全 管理上，利用"云检测+现场督导"严控风险，确保施工安全与进度"齐头并进"。针对技术难 点，开展系统性技术研讨论证，精准制定解决方案。在工程验收阶段，坚持高标准、严要 求，确保所有项目以"零缺陷"状态投入运行。 期间，各工程项目部优化施工流程、加大资源投入，跑出了工程建设的"加速度"。以巴 拉水电站500千伏送出工程为例，其施工高峰期正逢高原寒冬，低温、冰雪、强降雨等恶劣 天气给施工带来巨大挑战。"为了确保工程能在夏季用电高峰前发挥作用，我们全力攻坚克 难，最终比原计划提前了4个月完工。"国网四川建设公司工程业主项目经理纪叶生介绍，工 程投运后，巴拉水电站74.6万千瓦的清洁水电和光伏装机顺利接入四川电网，有效缓解夏季 高峰期电力供应压力。 【责任编辑：王少晨 】 这批工程中，攀西电网优化改造、眉山西500千伏输变电、巴塘水电站500千伏送出等8 项500千伏工程，如同打通了电网的"主动脉"，极大增强了骨干网架的输电能力；成都金融 城、成都空港新城、达 ...

"五一"假期，广西重点电网工程项目攻坚正酣，27个220千伏及以上主电网工程、百余项配网施工 现场忙碌有序，电力建设者们坚守岗位，奏响项目建设的"冲锋号"。 5月4日，在广西崇左至凭祥铁路牵引站220千伏外部电源送电工程的源江—龙旺牵线Ⅱ线施工现 场，作业人员正在紧张开展地面铁塔组装工作。"五一"期间，现场共有68名电网建设人员坚守岗位推进 作业。 据南方电网广西送变电建设公司建设管理部副经理冯迎春介绍，该工程规划建设四条220千伏线 路，创新采用无人机放线、吊车辅助组塔、挖掘机基础开挖，配合牵引机、张力机协同作业等方式，建 设效率提升30%。目前工程进度达61%，项目全部建成投运后，将构建双回路供电网络，为高铁安全运 行提供稳定可靠的电力保障。 在南宁市武鸣区至三塘镇的崇山峻岭间，南宁抽水蓄能电站500千伏送出工程建设现场，电网"高空 飞人"头顶烈日，在四五十米高空，开展线路附件安装作业，冲刺5月底建成投产目标。 作为广西首座抽水蓄能电站电能输送的"大动脉"，该工程新建98基杆塔、42.5千米线路，自开工以 来便备受关注。面对线路跨越地域复杂、工期紧张等挑战，项目部采用"智能机械+无人机"协同施工， 大幅提 ...