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Showing posts with label installed generation capacity. Show all posts
Showing posts with label installed generation capacity. Show all posts

Tuesday, 9 September 2014

Electrical Engineering: One of the fastest growing fields in India

The demand for electrical energy in India has increased many folds during the recent time because of:

  1. growth in population, 
  2. enhanced lifestyle, 
  3. increased automation in industrial sector etc. 


Recent studies by the US Department of Energy indicate that China, India and Brazil will be the most rapidly growing countries in terms of electrical demand. Total 1102.9 TWh of electricity was produced in the country during 2013-14 making it the 3rd largest producer of electrical energy in the world in the year 2013. 

International Energy Agency estimates that India will add another 600 to 1200 GW of installed capacity before the year 2050. This is clearly echoed in the report of Ministry of Power, Government of India, 2012, in which additional generation capacity to be added in the 12th Five Year Plan is stated as 76 GW. It needs to add another 170 GW of installed generation capacity in the next decade to get the desired 9% growth in GDP and this can be achieved through large capacity power projects such as the Ultra Mega Power Projects based on super-critical technology.  
As on July 2014, the installed generation capacity in India is 250.5 GW. Indian electricity sector is certainly amongst the most active players in Renewable Energy (RE) utilization especially the wind energy. The grid interactive wind and solar generation is 21.69 GW and 2.75 GW respectively; with still more projects to materialize in the coming decades. 

The objective of Jawaharlal Nehru National Solar Mission (JNNSM) is to establish India as a global leader in solar energy by creating conducive atmosphere in the country. The mission under the brand name “Solar India” set an ambitious target of adding 20 GW of grid connected and 2 GW of off-grid capacity by year 2022.
Private sector has a great role to play in Indian power sector and there are many prominent names that have registered their strong presence. At present private sector accounts for nearly 40 % in the total installed generation capacity of the country and is set to increase. Moreover, private players are extending technical assistance to government in erecting power plants and other facilities, involved in power trading, evolving clean energy development mechanism, supplying the power etc. as on March 2014, India had 13.9 GW of installed generation capacity based on super-critical technology; of which Adani Power (one of the leading private players in the Indian power sector) has commissioned the maximum of 6.6 GW. Other big private companies in the generation sector are Tata Power, Reliance Power, Essar Power etc. Government of India has issued certain guidelines for private sector participation in transmission sector also.        
In the light of above facts, various job opportunities are available to electrical engineers in Indian power sector. They can work in both public and private sector industries involved in power generation, transmission, distribution industry as well as in their ancillary units. These companies employ them as engineers or managers, and make them responsible for design and development, installation, commissioning, operation and maintenance of power handling equipment and systems. The service sector which provides the required maintenance also forms a sizable segment.  

The various governmental organizations involved in the Indian power sector are National Thermal Power Corporation (NTPC), National Hydro Power Corporations (NHPC), Damodar Valley Corporation (DVC), Power Finance Corporation (PFC), Power Grid Corporation of India Limited (POWERGRID), and various state level power generation companies and power suppliers. These agencies are providing ample job opportunities to graduate electrical engineers. The companies are advertising the vacancies in leading national/ local newspapers and posting the same on their websites. These companies usually ask for 60 percent or above in graduation level. The recruitment process consists of mainly written test, group discussion and personal interview. Sometimes, a technical interview may also be conducted. 

The final selection is based on the overall performance of the candidate. Reservation to various categories is given as per the prevailing government rules. Initially, selected candidates have to work on probation as graduate engineer trainee for one or two years and on the successful completion of probation period they are absorbed as regular engineers.

A huge job potential also exists in rapidly growing private sector for electrical engineers. As far as their selection criterion is concerned, it varies from company to company. However, most of them are hiring on the basis of personal interview of eligible candidates. 

Some of the major private companies in power sector are Tata Power, Reliance Power, Adani Power, Torrent Power, Essar Power, Crompton Greaves, Siemens, Alstom T&D India, Suzlon Energy etc. 

Sunday, 31 August 2014

Ultra Mega Power Projects: For the desired GDP growth in India

Last updated: January 20, 2017


Formidable Challenges in Indian Power Sector:


India has achieved significant generation capacity addition in the last 50 years. Despite of this it continues to face formidable challenges in bridging the gap between demand and supply. It needs to add another 170 GW of installed generation capacity in the next decade to get the desired 9% growth in GDP and this can be achieved only through large capacity power projects. 


Ultra Mega Power Project:

In view of this, the Government of India has come up with the concept of Ultra Mega Power Project (UMPP). These coal powered, super-critical technology based power projects, each with a capacity of 4 GW or more and each unit of 660 MW or 800 MW is a series of ambitious power projects planned by the Indian Government. So far 16 UMPPs have been envisaged in various states including Gujarat, Andhra Pradesh, Chhattisgarh, Jharkhand, Karnataka, Madhya Pradesh, Maharashtra, Orissa and Tamil Nadu. Estimated investment in each UMPP is approximately Rs 20,000 to 30,000 crores.


Super-critical Thermal power plants:

The term “super-critical” is used for power plants operating at pressure above critical pressure; i.e. plants operating above 225.56 kg/cm2 and 374.15 oC are called super-critical thermal power plants. Central Electricity Authority (CEA) has evaluated super-critical technology from the technical and economical point of view and has recommended the same for Indian thermal power plants. Super-critical thermal generating units of 660 MW (steam pressure of 247 kg/cm2 and temperature of 535/563 oC) and 800 MW (temperature of 565/593 oC) is proposed for all future thermal power plants.


Super-critical Technology:

Power plants based on super-critical technology has the advantage of lower CO2, NOX, and SOX emission per kWh of electricity produced in comparison to sub-critical power plants. As per the Government decision, in the 13th FYP only super-critical technology based thermal power plants would be set up in India.

The average tariff for these projects is in the range of  Rs 2-3 per unit which is much lower than the recent tariffs. The projects are awarded to developers on tariff-based International Competitive Bidding (ICB) on a Build-Own-Operate (BOO) basis. CEA is the technical partner and Power Finance Corporation (PFC) is the nodal agency for getting the basic infrastructure like land, water supply, environment clearances, etc. In order to enhance investors’ confidence, and reduce risk perception, PFC incorporates Special Purpose Vehicles (SPVs) for each UMPP to undertake the bidding process on behalf of the beneficiary states. Apart from bid process, the purpose of the SPVs is to obtain various clearances for the projects.

Significant UMPP:

The first UMPP, developed by Tata Power at Mundra, Gujarat has been commissioned and contributes 4,000 MW (8 x 800 MW) of power to the Western grid. Sasan UMPP, a 3,960 MW (6 x 660 MW) pit-head power plant is located in Madhya Pradesh. The project has been allocated three captive coal mine blocks; with an envisaged production of 25 million tonnes of coal per annum. When completed, this UMPP become the largest integrated coal-cum-power plant in the country involving almost 10,000 acres of land of which almost 7,000 acres would be coal mines.
The project was awarded to Reliance Power through ICB process in August 2007. The estimated project cost is over Rs. 27,000 crores (US$ 4.2 billion). Sasan is the first ever integrated-power cum coal mine project with current operational capacity of 2640 MW. First unit of 660 MW was commissioned in March 2013, second unit in January 2014, third unit in April 2014 and fourth unit in May 2014. 5th Unit is synchronized with grid and commissioning to be declared shortly. 6th and last unit is in advanced stage of commissioning and expected to be commissioned in the next couple of months. 

Power generated from the plant would be sold in Madhya Pradesh, Punjab, Uttar Pradesh, Delhi, Haryana, Rajasthan and Uttarakhand states of India at a levelized tariff of 1.196 INR/ kWh. The low tariff of the project is primarily because of the low cost of generation due to its pit head location and captive mines. Because of the advanced 'super-critical' boiler technology, the operating efficiency is higher and emissions are reduced, thereby making it a less polluting thermal power plant.


The Tilaiya UMPP also by Reliance Power, is another integrated pit

pit-head power plant with an aggregate capacity of 4 GW located at  
Jharkhand.

As on March 2014, India had 13.9 GW of installed generation capacity based on super-critical technology; of which Adani Power has commissioned the maximum of 6.6 GW (10 units of 660 MW) with plant location at Mundra, Tiroda (Maharashtra) and Kawai (Rajasthan) . The 3 x 660 MW Sipat-I is the only UMPP in the public sector owned by NTPC, the rest have been commissioned by private sector.
Ref:
www.pfcindia.com
wikipedia.org/wiki/Ultra_Mega_Power_Projects
www.reliancepower.co.in
electricalmonitor news bureau