国家电网公司2010年8月12日首度公布,到2015年建成华北、华东、华中(“三华”)特高压电网,形成“三纵三横一环网”。分析人士表示,未来5年,特高压的投资金额有望达到2 700亿元,这较“十一五”期间的200亿元投资,足足增长了13倍之余。同日,国网宣布晋东南-南阳-荆门1 000 kV特高 State Grid Corporation of China announced on August 12, 2010 for the first time that it will build a UHV power grid in north China, east China and central China (“Sanhua”) by 2015, forming a “three vertical, three horizontal and one ring network.” Analysts said that in the next five years, the investment amount of UHV is expected to reach 270 billion yuan, which is a 13-fold increase over the investment of 20 billion yuan during the “Eleventh Five-year” period. On the same day, the State Grid announced that the southeastern-Nanyang-Jingmen 1 000 kV ultra-high