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NEA to build Pump Storage to Meet Electricity Demand

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NEA to build Pump Storage to Meet Electricity Demand
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April 23: Currently, the supply of electricity in Nepal is 370 MW lesser than the demand. To mitigate this problem, the Nepal Electricity Authority (NEA) has set a strategy to use the power which has not been used during the night to cover the demand of electricity in peak hours.

According to Kulman Ghising, Managing Director of NEA, around 200 MW is needed as a backup to meet the demand. "It is necessary to accumulate the electricity which has remained unused in the passive hours to prepare for backup for the busy hours," shares Ghising. 

We have been facing this situation because the electricity imported from India and produced by the private sector have not been able to meet the demand in the peak hour.

Currently, NEA produces 351 MW of electricity and the private sector 155MW during the evening peak hours. To add to this, the country is also importing 369 MW from India. However, the statistics shows that the country’s demand is a whopping 1,245 MW daily in the peak hours.

NEA has been running a power cut for four hours in the evening to manage the electricity during the peak hour. Some power plants developed by NEA including the Chamelia (30 MW) and Kulekhani III (14 MW) and some other projects of private sector are yet to be completed. However, the NEA is considering the backup because all these production and imports will not be able to meet the demand.

Ghising also recently visited Begnas lake and Rupa lake of Kaski district which have the potentials for pump storage system for generation of power.  "This place is naturally built for pump storage project. We just need to carry out few construction works to complete the project," Ghising shared. 

The primary research regarding the place has estimated that this project can produce 150-200 MW of electricity. The project has been especially designed to meet the demand of electricity in the peak hours of evening.

However, the stakeholders are in dilemma thinking whether the generation of hydropower is possible or not as both the lakes are tourism spots and are under conservation areas.

In addition to this, there is also a possibility of constructing pump storage in the Kulekhani Hydropower Project. "For this, the NEA has also thought of managing a backup battery to collect 200 MW of electricity," says Prabal Adhikari, Spokesperson of NEA.

He further shares that the battery needed for the backup is very large and expensive. Furthermore, there will be a big challenge in terms of its location and environmental impact to dispose the battery after its expiry.

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