”One Grid – One nation program was introducing by the Government of India. In which they proposed to divide the national grid into five regional grids. The five regional grids are: (1) Western Grid, (2) Eastern Grid, (3) Southern Grid, (4) Northern Grid, (5) North Eastern Grid. The integration of grids is beginning with asynchronous HVDC back to back links and the power was subsequently links between the regions.”
The main reason to link these regions is to exchange of surplus power to other regions. However, after some time they shift to the National Basis, they associate the inter-regional link to the Generation projects which is beneficiary to the Nation Development. By the end of 12th plan the country obtains inter-regional electricity transmission capacity of around 75000 MW and which is expected to be enhance about 118000 MW.
One Grid One Nation will help in optimal utilisation of total electricity generated in the Nation by any kind of resources by transfer of power from surplus regions to Load centric regions. Further this would be helpful in establishment of healthy Electricity market with trending of power across regions. The One Grid One Nation with synchronously connected concept also helps to connects all the regional grids with one national frequency.[1]
Source: Siddartha, Toleti, (Jan. 2, 2014), One Grid, One Nation, Mirchi9
“As per CEA (Central Electrical Authority), the South region has always suffered with the maximum shortage of power. The energy deficit in South India was always high compared to the national average of 8.3%. Even in year 2013 they estimate that the shortage of power in South India was reaching as high as 19%. It would be followed by Northern-Eastern with 11%, Northern with 6% and western with 1.2%. Meanwhile the Eastern region has 10.2% energy surplus region.”
The first inter-connection was in 1991 between North Eastern and Eastern grids and in the last in December 2013 southern region was connected to the Central Grid and India achieve One Grid One Nation. With this interconnection, the Indian Power sector becomes one of the largest synchronous energy generation grid in the world with about 232 GW of Power generation capacity.[2]
On my point of view this concept is very suitable to the sustainable development of the nation and it should be the part of the developing nations like India. As One Grid One Nation has many advantages which is stated below:
- The surplus power is transferred to the Load centric regions.
- The achievement of similarity voltage can be achieved.
- This concept brings structural transformation of the Indian power sector.
- By the use of advanced software like Power World Simulator and MI-Power we can eliminate the large power cut offs due to the contingencies.
- The achievement of ideal frequency is much easier.
- The loss of Electricity transmission and Generation would be less so by this the loss of natural resource will also less.
The creation of One Grid One Nation has potential to bring above stated advantages of the Indian Power sector. However, it is equally importance and Hope that Southern State would establish Inter-regional links as soon as possible, though many of them are under various stages of expectations.
Also, with the high-speed expansion of Infrastructure in Indian Power system, we require a robust and structural communication Infrastructure for proper control in power system operation. This requires advanced power system software. In other words, we can say that more R&D require in software like MI-Power and Power World Simulator which can work on bigger form which will help in grid stability.
References
Author Details
Raj Shah | PGDM (IM) | 2019-21
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Raj has completed B.Tech. (Elec). He is currently pursuing PGDM in Infrastructure Management (2019-21) at AIIM. He has prior work experience in marketing field in prima automation (India) Pvt. Ltd. He has also published two research papers in the field of Power Electronics. He is enthusiastic to explore current affairs and he is a go-getter type of person.
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