China to upgrade Hunan power grid

subscribe

The State Grid Corporation of China (SGC) (Beijing) has decided to invest $340 million this year to improve the Hunan power grid's ability to withstand ice, according to Hunan Electric Power Company (Changsha), a subsidiary of SGC in Hunan Province.

From mid-January to mid-February of this year, the grid was greatly affected by the severe snowstorms that hit the country. The grid's transmission lines were encased in ice about 70 millimeters to 90 millimeters thick; the lines' designed limit was 15 millimeters to 20 millimeters.

The $340 million upgrade will cover six transmission lines with a total length of 531 kilometers and 38 crossovers at the 500-kilovolt (kV) level; 20 transmission lines with a total length of 733 kilometers and 38 crossovers at the 220 kV level; and 26 transmission lines with a total length of 452 kilometers and 165 crossovers at the 110 kV level.

Related departments of the SGC have been planning for various stages of the project, including tendering and construction. During construction, new technologies, new materials and new processes will be used. For instance, the application of multi-circuit, compact and narrow foundation steel pipe assembled towers will be adopted in 220 kV and 110 kV transmission lines.

Related News

power lines

France hopes to keep Brussels sweet with new electricity pricing scheme

PARIS - France has unveiled a new electricity pricing mechanism, hoping to defuse months of tension over energy subsidies with Brussels and its neighbors.

The strain has included a Franco-German fight over the reform of the bloc's electricity market, with Germany accusing France of wanting to subsidize its industry via artificially low energy prices, while Paris maintained it should have the right to make the most of its relatively cheap nuclear energy. That fight has now been settled.

On Tuesday, the French government presented a new mechanism — complex, and still-to-be-detailed — to bring the average price of electricity closer to €70…

READ MORE
nevada solar panels

Nevada on track to reach RPS mandate of 50% renewable electricity by 2030: report

READ MORE

tunisia renewables

Tunisia invests in major wind farm as part of longterm renewable energy plan

READ MORE

mercury energy

Mercury in $3 billion takeover bid for Tilt Renewables

READ MORE

net zero

Net-zero roadmap can cut electricity costs by a third in Germany - Wartsila

READ MORE