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广东各地高温预警 用电统调负荷年内第五次创新高

2017-08-22 10:17:05   央广网

央广网广州8月22日消息(记者周羽 通讯员沈甸)8月21日,广东气象网站上一片耀眼的橙色,全省多个地市纷纷挂出高温预警信号。尽管立秋已过了半个月,但“秋老虎”发威,暑热未减。在南方电网广东调度控制中心,值班员潮铸正紧盯着电网运行数据。“又创新高了!”14时32分,广东统调负荷今年第五次创历史新高,达到10858万千瓦,比去年最高负荷增长8.5%,继续领跑全国。

当天,广州、佛山、东莞、江门、中山、珠海、惠州、肇庆、韶关、潮州、云浮等11个城市电网负荷均创下历史新高,其中惠州年内第13次突破新值。据悉,目前系统运行正常,电力供应有序。

  需求旺盛:持续高温、产业用电拉动负荷攀升

一个耐人寻味的现象,今年广东统调负荷首次创新高在6月便早早出现,而“三伏”过后,负荷仍屡创新高,并两次出现一天之内负荷连创新高的情况。对此,南方电网广东公司副总经理陈晔表示,“这些现象,一方面说明,随着全面建成小康社会的推进,广东居民生活水平逐步提高,用电量在增长;另一方面,广东省经济稳步发展带来用电需求的不断上升,也是负荷屡创新高的重要原因。”

炎炎夏日,降温用电需求是统调负荷持续走高的直接原因,而持续增长的产业用电需求也触发广东省统调负荷连创新高。

据了解,今年上半年,广东省全社会用电量2682亿千瓦时,同比增长4.6%,第二产业尤其是工业用电量增速迅猛。以制造业强市东莞为例,上半年用电量增速达6.9%,其中工业用电量增速达9.53%。数据显示,广东省新增用电大幅增加,企业扩大生产。今年1到6月,广东省大工业用电实增容量254.14万千伏安,较去年同期增长104.24%。

同时,广东第三产业用电量也保持较高增速。上半年,交通运输、仓储、邮政业和信息传输、计算机服务和软件业用电量保持双位数增长,分别为19.45%和12.95%。“这表明,在经济新常态下,广东近年来以跨境电子商务、现代仓储物流等为代表的新产业、新商业模式蓬勃发展。”该公司市场部主任谭跃凯表示。

  “开源”增供:积极吸纳西电 不断提升供应能力

记者获悉,截至7月底,南方电网广东公司统调装机容量为10683.5万千瓦,为应对高负荷,迎峰度夏期间,该公司安排省内机组“开足马力”发电。

作为西电东送的受端电网,借助广东统调负荷连创新高的契机,该公司落实南方电网部署,通过合理组织省内发电电源、优化电网运行方式,充分挖掘省内各类型电源的调峰能力,加大吸纳西部富余水电。21日当天,西电最大出力3391万千瓦,占广东统调负荷约31.2%。

据统计,今年1-7月,广东受端共吸纳西电电量超过900亿千瓦时。2016年全年,广东共吸纳西电1725亿千瓦时,同比增长2.55%,相当于两个深圳市全年的用电量。近年来,该公司积极参与西电东送通道建设,今年迎峰度夏期间,西电东送通道规模已达3536万千瓦。

为应对节节攀升的用电需求,确保以稳定可靠的电力支撑广东经济社会发展,近年来,该公司还积极“强筋壮骨”,不断提升电力供应能力。步入“十三五”,随着主网网架不断优化完善,该公司以配网规划建设为“重头戏”,积极落实国家供给侧结构性改革要求,加快补齐农村电网短板,上半年共完成农网投资逾46亿元,对2211个中心村实施农网改造升级,为2901个农村机井通电,进一步提升了农村居民的用电质量。

此外,由于负荷增加,电网设备负担加重,供电部门还组织力量加强对电网设备的监测,防止因线路、设备过热引发线路故障,确保电网设备健康稳定运行。

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