Sushil Kumar Soonee

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Sushil Kumar Soonee
S k soonee.jpg
Born (1956-11-14) 14 November 1956 (age 58)
West Bengal, India
Occupation Chief Executive Officer, POSOCO
Years active 1978–present

Mr. Sushil Kumar Soonee is an Electrical Engineering Honours graduate from IIT Kharagpur class of 1977. After brief stint in Private Sector, he joined Central Electricity Authority (CEA) through Combined Engineering Services Examination. His deep interest in Power System Operation brought him to POWERGRID when the five Regional Load Despatch Centres were transferred from CEA to POWERGRID. He has more than three decades of first-hand experience of grid management as RLDC head in three out of five regions in the country viz. Eastern, Southern and Northern.

He is steering the Power System Operation of the pan-India grid as the Chief Executive Officer of POSOCO which is a wholly owned subsidiary of Power Grid Corporation of India Limited. He has worked extensively for integration of state grids to form regional grid in Eastern and North-eastern region and later contributed in the formation of the synchronous N-E-W grid. He has been closely associated with drafting of the Indian Electricity Grid Code (IEGC), implementation of Availability Based Tariff (ABT) mechanism and introduction of Open Access in India.

He is a Fellow of Institute of Engineers,(India), a Senior Member of IEEE and Member of ClGRE. He has authored several technical articles that have been presented in various forums. His current area of interest besides power system operation is electricity market design and human capacity building.

He is proficient in English, German, Hindi, Bengali and Marwari.


He did his schooling from Nopany Kolkata Higher Secondary School (1964-1972). He joined IIT Kharagpur in 1972 to pursue B.Tech (Hons.) in Power System. He also did research in Power System Operation in IIT Kharagpur (1983–84).


Power System Operator Certificate from National Power Training Institute, Ministry of Power, Government of India.
CrtEVM Certificate in Earned Value Management from Institute of Project Management Certification, Project Management Associates.


He started his career as Factory Incharge in Techno Electric Company in August 1977 and left the job in September 1978 after getting selected in Central Electricity Authority as an Executive Engineer. He worked in CEA for 16 years and 4 months.

He was later transferred to Powergrid Corporation of India Limited after the Load Despatch functions were taken from CEA and given to POWERGRID. He joined as a Deputy General Manager at ERLDC, Kolkata in 1995.

He was promoted to the post of General Manager, SRLDC, Bangalore in October 2001.

In November 2004, he was given the designation of Executive Director, NRLDC. In January 2006, he got additional responsibilities of System Operation department of POWERGRID.

In June 2010 he was appointed as CEO, POSOCO and was made responsible for entire system operation related activities of RLDCs and NLDC. The Corporate Centre of POSOCO is at B-9, Qutab Institutional Area, Katwaria Sarai, New Delhi-110016, INDIA.
POSOCO mainly comprises -

  1. National Load Despatch Centre (NLDC)
  2. Five Regional Load Despatch Centres
  • Northern Regional Load Despatch Centre (NRLDC)
  • Western Regional Load Despatch Centre (WRLDC)
  • Eastern Regional Load Despatch Centre (ERLDC)
  • Southern Regional Load Despatch Centre (SRLDC)
  • North-Eastern Regional Load Despatch Centre (NERLDC)


Mr. S.K. Soonee has published hundreds of papers in various journals and conferences. Some of the papers are listed below -

* Title: Reliability - from Load Forecasting to System Operation in Indian Power System

 Year: 2007
 Authors: Soonee S. K, Mukhopadhaya Subrata

Details: In this paper, in the background of evolution of power grids in India, establishment of regulatory framework and operational philosophy in vogue, first reliability aspect of long term, mid term as well as short term (operational / outage) planning has been dealt with. Thereafter issues on the day ahead scheduling of generation as associated with real time operation (linking frequency in particular) for implementation through unique real time pricing mechanism has been highlighted. It has been shown how effectively markets could take care of reliability with self-healing mechanism, particularly in a country like India having power shortages. At the same time important parameter like grid voltage too has figured in, although a lot more is expected in the time to come. Though immediately not tagged with pricing in the power market directly, finally grid security, restoration, mock trial for black start, etc. from reliability angle are the other pertinent aspects that have been touched to conclude. As such reliability coordination in every aspect is playing an important role right from load forecasting to system operation under the changing scenario with the development of power market in India.

* Title: Development of power market in India

 Year: 2006
 Authors: Soonee S. K, Mukhopadhyay S., Dube S.K

Details: This paper presents the status of development of power market in India with the creation of opportunities consequent to restructuring of the sector through unbundling, opening up for private sector participation, positioning of regulatory mechanism through commissions at state and central level and appellate tribunal, allowing open access, etc. Starting with the background, it aims at giving a clear picture of achievement till to date and issues to be resolved to reach the goal. In this context opportunities that exist for power and energy trading with neighboring countries too are highlighted.

* Title: An Indian experience of defense against blackouts and restoration mechanism followed

 Year: 2008
 Authors: Soonee S. K, Mukhopadhyay S, Narasimhan S.R, Porwal R.K

Details: In this paper with the background of evolution of regional electricity grids in India aiming at the formation of National Grid, Indian experience of running the electricity grid with the procedure established to safeguard the system against possible blackouts has been detailed. This has been followed by the restoration measures adopted earlier in the event of such occurrences and as envisaged for future, particularly in the context of four out of five regional grids operating in synchronism and the remaining one connected asynchronously with the rest.

* Title: Plant operation and control within smart grid concept: Indian approach

 Year: 2011
 Authors: Soonee S. K, Mukhopadhyay S, Joshi R

Details: With smart grid typically characterized by attributes like, reliable and secure, efficient and economic, environment friendly and safe to the extreme extent as feasible, it calls for quality transmission and distribution operation backed by generation with optimum utilization of assets considering expected level of commitment from all stakeholders. Latter encompass investors, owners, traders, service providers, operators, and consumers of different categories. Such being the concept plant operation and control assumes an important, but difficult task at every instant of time to go. With Indian grid still growing to meet demand along with expansion of network whether from new generation or strengthening intermediate power systems, stabilization of the process would definitely take some more years. But aspiration of consumers nevertheless is not going to stop from the point of view of quality, besides quantitative adequacy at every instant of time. This calls for on the one hand smart grid to adjust with generation and its possible storage with availability whenever and wherever called for, self-healing mechanism in the face of disturbance, optimum utilization of assets achieving high level of efficiency in operation, while at the other hand consumer getting quality electricity as per quantitative requirement, through successfully enabled provision of services, products marketed, etc. Extensive usage of digital technology in terms of communication and information technology on real-time basis is an essential feature for achieving success in the matter considering the demand-supply scenario accurately at every instant. Depending upon the same means of automatic or intelligent operation and control within smart grid concept has been deliberated in the paper.

* Title: Application of phase angle measurement for real time security monitoring of Indian Electric Power System- An Experience

 Published in: CIGRE-2008, C2-107
 Year: August 2008
 Authors: Soonee S. K, Sunil Kumar, Vivek Pandey, Rajesh Kumar, Rajiv Porwal

Details: The phase angle differences across different nodes are a measure of static stress across the grid and its proximity to instability and therefore can be monitored with respect to predetermined stability threshold limits. These threshold limits are being put based on the past experiences of system separation and off line simulations. The novel approach has improved system visualization and situational awareness of the system operators in the “NEW-grid.” The paper describes the deployment of direct phase angle measurement for monitoring the security of a large grid and would be a precursor to the deployment of Synchrophasor technology in the Indian electric power systems.

* Title: In praise of Unscheduled Interchange Mechanism

 Published in: Transica POWEGRID
 Year: June 2005
 Authors: Soonee S. K, Vivek Pandey

Details: A poetry on the unique balancing mechanism adopted in Indian electricity Market

* Title: Unscheduled Interchange- A Story in Quotes

 Published in: Transica POWERGRID
 Year: May 2006
 Authors: Soonee S. K, Narasimhan S.R., Vivek Pandey

Details: This is a compilation of remarkable quotes on energy balancing in Electricity Market

* Title: Multiple power exchanges in India – a case study

 Published in: CIGRE-2010, C5-107
 Year: 2010
 Authors: Soonee S. K, S S Barpanda, Samir Saxena

* Title: Significance of Unscheduled Interchange Mechanism in the Indian Supply Electricity Supply Industry

 Published in: Banaras Hindu University (BHU), India
 Year: 2006
 Authors: Soonee S. K, Narasimhan S.R., Vivek Pandey

Details: The Unscheduled Mechanism (UI) enforced in the interstate sale-purchase of power has succeeded in transforming the fabric of the Indian power system operation in a manner unparallel. Nonetheless, categorizing the scheme as a disciplinary and penal mechanism would be like missing bull’s eye wide off the mark. UI rate is much more than what meets the eye. The paper argues that the mechanism is primarily a real-time balancing mechanism and an instrument to achieve economy and efficiency at the macro level.

* Title: Visualization and Human Factors in Electric Power System Operation

 Published in: BHU IT
 Year: 2006
 Authors: Soonee S. K, Samir Saxena, Devender Kumar

* Title: A Power System Operator’s Tribute to Power Systems Guru – Charles Concordia

 Published in: Transica POWERGRID
 Year: July 2007
 Authors: Soonee S. K, Samir Saxena


 Published in: CBIP 7th International R&D Conference
 Year: February 4, 2009
 Authors: Soonee S. K, Vineeta Agarwal, Suruchi Jain

Details: This paper describes the impact of System frequency on Reactive power. The discussion is based on the study of these two important parameters on generator, urban radial load and SVC. In Northern India wide variation in frequency, in the range of 48.5 - 50.2 Hz, is observed against the permissible limit of 49 - 50.5 Hz in the absence of free governor mode of operation (FGMO). Studies show that relation of Reactive power with respect to frequency is negative. One percent increase/decrease in frequency causes 6-12 % decrease/increase in Reactive power . To minimize this variation in Reactive power, for better Reactive power management, system stability and voltage control, a tighter frequency band is an urgent need today.

* Title: Energy Conservation by Electrical Load Management through Day Light Utilisation

 Published in: Institute of Engineers, Kolkata
 Year: August 30, 1991
 Authors: Soonee S. K

* Title: Trans-National Power Exchange – An Essay on Costs & Benefits

 Published in: Dhaka, Bangladesh organised by FEISCA
 Year: August 8, 1998
 Authors: Soonee S. K, S K Sinha, B K Bannerjee

* Title: Importance of Traction Supply in Eastern region- A system Operator's view

 Published in: Institution of Engineers-Kolkata- The Challenges and developments of Traction in Indian context
 Year: August 24, 2001
 Authors: Soonee S. K

* Title: Point of Connection Transmission Pricing in India

 Published in: International journal of Emerging Electric Power Systems
 Year: May 2013
 Authors: Soonee S. K, S S Barpanda, Mohit Joshi, Nripen Mishra, Vaishally Bhardwaj

Details: The National Electricity Policy (NEP), issued by the Government of India, mandates transmission prices to be distance and direction sensitive and capture utilization of the network by each network user. In line with the mandate, the Central Electricity Regulatory Commission (CERC) has issued Sharing of Interstate Transmission Charges and Losses Regulations, 2010, to introduce point of connection (PoC)-based transmission pricing methodology in India. The methodology under the above regulations introduces one of the major reforms of its kind in the Indian power sector and seeks to share the total transmission charges in proportion to respective utilization of the transmission system by different entities. In this paper, the authors have enumerated their experience gained from the implementation of PoC-based transmission pricing regime in India. Authors have also discussed various issues encountered in the process of implementation and the methodology adopted.

* Title: On the progress of renewable energy integration into smart grids in India

 Published in: IEEE Power and Energy Society General Meeting 2012
 Year: July 26, 2012
 Authors: Soonee S. K, Subrata Mukhopadhyay, Joshi R, Rajput A K

Details: With more than 21,000 MW installed capacity of renewable energy sources as of now out of an estimated potential of about 189,000 MW, in the years to come it is really a challenge to integrate the same into the smart grids in a country like India. This is basically on account of unevenly distributed renewable resources. With 5 regional grids gradually getting connected, formation of national grid in totality is a reality. Of course with major sources of generation being thermal with availability up to certain distant future, entire thrust has been put in recent years on the development of renewable resources that would be the source of energy to run side by side to the conventional ones. At the same time vast assets created in transmission and distribution will also continue to be gainfully used, may be in conjunction other form of value addition to the same for proper functioning. Under this condition, keeping in mind the eventualities, regulations have been framed and so also the certification process has been made effective to handle the situation particularly on grid connectivity front. Expectations from smart grids by the consumers and suppliers as well of course may lead further refinement to the existing protocols in the process in the years to come as and when harnessing of renewable resources progresses to attain a very high level.

Awards and recognitions[edit]

  • Awarded by IEEE as the " 2011 PES Chapter Outstanding Engineer by the PES-IAS Delhi chapter for outstanding leadership and contribution in Power Grid Operation, Control & Regulatory Mechanism" in the AGM of the IEEE Delhi section at New Delhi on 19 February 2012.
  • Distinction in Power Engineering Technology by Central Electricity Authority - 1993-94.
  • Best Performance Award for 'Planning a Regional Electricity Grid in South Asia' by SARI South Asia Regional Initiative in Energy - August 2002.
  • Distinguished Performance in Chess in 1975-76 Patel Hall IIT Kharagpur.

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