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青海新能源发电量占比首次超50%_我的网站

A |     (ECNS) -- At the "Sweet Light" modern sugarcane industrial park in Quli Town, Fusui County, in Chongzuo, south China's Guangxi Zhuang Autonomous Region, sugarcane varieties including Guitang 44, Yunzhe 081609, Guitang 76, Zhongtang 3, and Zhongfu 1 are thriving, with most stalks standing more than three meters tall.    The park rotates several varieties and plants them in separate zones to keep yields stable and the fields ecologically resilient.        Yang Xue, who has worked in the sugarcane industry for eight years and now runs an agritech company, has watched the shift from farming by experience to farming by data. Virus-free seedlings and the cultivation methods that go with them can extend ratoon cropping from three years to about five, he said, with germination rates reaching 95%. "In Chongzuo, per-hectare sugarcane yield used to be around 60 metric tonnes. With new varieties, improved cultivation methods, and planting models, yields have now risen to 72 metric tonnes," he said.    To manage the park's 333 hectares of contiguous fields, Yang's team has installed a smart irrigation system that combines water, fertilizer, and pesticide application. It can be run from a computer or a mobile app, with irrigation timing, flow, and volume set precisely. One worker can now cover more than 67 hectares.    The system has since been upgraded to a dual-pipe design, Yang said, allowing water, fertilizer, and pesticides to be applied together and accurately. Annual electricity costs have fallen from 1,200 yuan (about $168) per hectare to 750 yuan (about $105). Four workers can now fertilize 40 hectares in a day, work that previously took 30 workers to cover less than seven hectares.        Mechanized harvesting has cut costs as well. Cutting and loading by hand costs more than 16,500 yuan per hectare, based on a yield of 105 metric tons per hectare and a rate of 160 yuan per metric ton. With machine harvesting, farmers receive a state subsidy of about 3,000 yuan per hectare and pay only 750 to 1,200 yuan for the service. The park also returns chopped stalks to the fields, saving another 450 to 600 yuan per hectare in fertilizer.    The Chinese Academy of Tropical Agricultural Sciences (CATAS) has been working with the Guangxi Academy of Agricultural Sciences and other institutions on variety improvement, seedling propagation, pest control, green cultivation, and mechanical harvesting.    Wu Qibin, a researcher at the Sugarcane Research Center of CATAS's Institute of Tropical Bioscience and Biotechnology, said Guangxi is China's core sugarcane-producing region, with more than 800,000 hectares under cultivation and over 60% of national sugar output. The industry is now pursuing two main goals, he said: breeding high-quality varieties suited to machine harvesting, and developing specialized machinery matched to those varieties.    (By Tang Yuxian)                    。    记者4月24日从国家电网青海省电力公司获悉，今年1至3月，青海新能源发电量127.3亿千瓦时，同比提升20.4%，一季度新能源发电量占发电总量的51.3%，标志着青海新型电力系统省级示范区建设取得重要成果。

B | 　　这是4月23日在青海省海西蒙古族藏族自治州德令哈市光伏（光热）产业园拍摄的光热电站一角（无人机照片）。新华社记者 张龙 摄　　位于青藏高原腹地的青海省，风光资源富集，是我国重要的新能源生产基地，是“西电东送”的重要输出地之一。当前，青海正聚力打造国家清洁能源产业高地，加快构建新能源占比逐渐提高的新型电力系统，在电源互济互补、电网互联互通、产业负荷调节、绿色低碳共享等方面持续发力，新能源产业迎来了最好的发展时期。　　今年以来，国网青海省电力公司加快打造适应大规模新能源开发利用的大送端电网，积极服务“沙戈荒”大型风电光伏基地建设，积极推动绿色电力消费，保持新能源装机和发电量占比“双主体”“双提升”。截至3月底，青海省电源总装机5568万千瓦，新能源装机3879万千瓦、占比69.7%。年内预计新增新能源装机超1500万千瓦，届时新能源装机总量将突破5000万千瓦。（记者解统强）。

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