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800 kV HVDC Substation under Execution by PGCIL near Kangeyam is ready and under commissioning tests.

ரூ.3,400 கோடியில் நவீன மின்நிலையம் முதல் முறையாக தமிழகத்தி்ல் தயாரானது


தென் மாநிலங்களில், முதல் முறையாக, தமிழகத்தில், 3,400 கோடி ரூபாய் செலவில், 800 கிலோ வோல்ட் திறனில் அமைக்கப்பட்டு வரும், அதிநவீன துணை மின் நிலையத்தின் கட்டுமான பணி முடிவடைந்துள்ளது.
மத்திய அரசின், 'பவர்கிரிட் கார்ப்பரேஷன்' நிறுவனம், பிற மாநிலங்களில் இருந்து, மின் வழித்தடங்கள் வாயிலாக, தமிழகத்தில் உள்ள, அதன், 765, 400 கிலோ வோல்ட் துணை மின் நிலையங்களுக்கு மின்சாரம் எடுத்து வருகிறது. அங்கிருந்து, அவற்றின் அருகில் உள்ள, தமிழக மின் வாரியத்தின், 400 கி.வோ., துணை மின் நிலையங்களில் மின்சாரம் பெறப்பட்டு, மின் இணைப்புகளுக்கு வினியோகம் செய்யப்படுகிறது.

துணை மின் நிலையம்


தற்போது, விழுப்புரம் மாவட்டம், அரியலுார் மற்றும் வட சென்னையில், 765 கி.வோ., திறனில், தமிழக மின் வாரியம் சார்பில், துணை மின் நிலையங்கள் அமைக்கப்பட்டு வருகின்றன.
சத்தீஸ்கர் மாநிலத்தில் இருந்து, தமிழகத்திற்கு, 6,000 மெகா வாட் மின்சாரம் பெறப்பட உள்ளது. இதற்காக, சத்தீஸ்கர் - ராய்கர் மற்றும் திருப்பூர் மாவட்டம் காங்கேயம் அருகில், தலா, 800 கி.வோ., வாட் திறனில், பவர் கிரிட் நிறுவனம், அதிநவீன துணை மின் நிலையம் அமைத்து வருகிறது. அவற்றை இணைக்கும் வகையில், அதே திறனில், 1,765 கி.மீ., துாரத்திற்கு, மின் கோபுர வழித்தடம் அமைக்கப்படுகிறது.



சோதனை முறை



இந்நிலையில், தற்போது காங்கேயம் அருகில் அமைக்கப்பட்டு வரும் நவீன துணை மின் நிலையத்தின் கட்டுமான பணிகள் முடிந்து, அவற்றில் உள்ள மின் சாதனங்களை, சோதனை முறையில் இயக்கும் பணி துவங்கியுள்ளது.
இது குறித்து, மின் வாரிய அதிகாரி ஒருவர் கூறியதாவது:பவர் கிரிட் நிறுவனம், 3,400 கோடி ரூபாய் செலவில், காங்கேயம் அருகில், துணை மின் நிலையம் அமைக்கும் பணியை, இரு ஆண்டுகளுக்கு முன் துவங்கியது. இதுவே, தென் மாநிலங்களில், அதிக திறனில் உடையது.

ராய்கர், காங்கேயம் இடையில் வழித்தட பணியும், 90 சதவீதம் முடிந்துள்ளது. விரைவில், அந்த வழித்தடம், ராய்கர், காங்கேயம் அருகில் உள்ள, 800 கி.வோ., துணை மின் நிலையங்களில் இணைக்கப்படும். இதனால், சத்தீஸ்கரில் இருந்து தமிழகத்திற்கும்; தமிழகத்தில் இருந்து பிற மாநிலங்களுக்கும், அதிக மின்சாரம் எடுத்துச் செல்ல முடியும்.இவ்வாறு, அவர் கூறினார்.

https://www.dinamalar.com/news_detail.asp?id=2413052
 

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India's electricity demand falls for fourth straight month, here's why it matters

With the exception of Tamil Nadu in the country's south, demand fell in all large and industrialized states. Energy requirement fell across all regions in the country, the data showed

An official at Ministry of Power attributed the tepid electricity demand to an early onset of winter and high rainfall, which he said has reduced the need for air conditioning.

However, electricity demand from industries accounts for over two-fifths of India's annual electricity consumption, according to government data, with residences accounting for nearly a fourth and commercial establishments for another 8.5 per cent.
https://www.indiatoday.in/business/...s-electricity-demand-falls-1627159-2019-12-10
 
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Kudankulam nuclear power plant: Steam generators for unit-4 ready

Rosatom State Atomic Energy Corporation, which is the main equipment supplier for Kudankulam nuclear power plant (KKNPP), has completed production of steam generators for the unit-4, the Russian firm said in a statement. In the nuclear power plant, heat is removed from the reactor core by coolant, which passes through the core. This thermal energy is used to produce water steam in the steam generator. Steam’s mechanical energy is supplied to the turbine generator where it goes into electricity.

The diameter of steam generators is over 4 m, length 15 m, and weighs 340 tonnes. The set of equipment for one power unit of a nuclear power plant of this type includes four steam generators.

Navigation season

Three generators were shipped to the Kudankulam nuclear power plant and the fourth item will be shipped in April 2020 when the navigation season is open, Rosatom said.“For effective interaction during production of equipment for KKNPP at Atomenergomash site, the permanent work of the Indian experts was arranged,” the statement said. In October 2013, Unit-1 of the KKNPP was connected to the southern power grid.

In August 2016, unit-2 of the Kudankulam nuclear power plant was connected to the power grid. Currently, units-3 and 4 are under construction. The contracts for construction of unit-5 and 6 have been signed and the preparatory works are in progress.

Source : https://www.newindianexpress.com/st...team-generators-for-unit-4-ready-2091027.html
 

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Tamil Nadu CM launches initiatives worth over Rs 1,000cr

Palaniswami inaugurated 92 power sub-stations established in different parts of the state, and constructed at a total estimated cost of Rs 1035.28 crore, an official release here said.

Tamil Nadu Chief Minister K Palaniswami on Wednesday launched a series of initiatives estimated over Rs 1,000 crore in various sectors.

Palaniswami inaugurated 92 power sub-stations established in different parts of the state, and constructed at a total estimated cost of Rs 1035.28 crore, an official release here said.

He inaugurated the facilities through video conference from here, it added.
 
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Both Kudankulam units shut, 1,000 MW shortfall for Tamil Nadu

CHENNAI: Both units at Kudankulam Nuclear Power Project have come to a stand-still, resulting in a shortfall of 1,000MW for Tamil Nadu Generation and Distribution Corporation (Tangedco).
Unit 2, which had stopped power generation in December last, is yet to resume.
The first unit was stopped on Tuesday night owing to a technical snag. About 50% of power generated at Kudankulam power plant is supplied to Tamil Nadu.
“We were getting around 300MW from Unit 1 till a few days ago. As there is no communication from the plant as to what is the real issue and when generation will resume, we are not taking supply from Kudankulam into consideration for our planning,” said a senior Tangedco official.
As per Nuclear Power Corporation of India Limited (NPCIL) website, Unit 2 generated 3,641 million units of power in 2019-20 and Unit 1 generated 5,586 million units. Efforts to seek response from NPCIL officials were in vain.
Compared to other nuclear power units in the country, the Kudankulam units have been performing below par. For example, four units in Kaiga have a capacity factor of not less than 90%. Some have crossed 100%. In comparison, the capacity factor of Kudankulam Unit 1 is 80% and Unit 2 is only 50%. Since February 1, power demand has been surging in the state. The peak demand is around 14,500MW, which is a new high for February. “All our thermal units are working at full capacity. Beyond that, we are purchasing power from central thermal and nuclear units as well as from the market to meet the peak demand,” said the official. At times, wind power is available, but it is restricted to evening time.
“Till wind power season begins, we have to depend on thermal and nuclear units for power supply. That explains our dependence on Kudankulam,” said the official.
 

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I am not sure why we are buying 4 more units from Russia. This junk plant is shut for more days than its operating days
its not junk. It has saved TN in the past, when entire unit was given to TN for few months.

365 days in a year. few days shut of here and there, wont be a big loss.

I worked in production plant, where some periodic maintenance happens. it might be a some reason for the plants to be shutdown for some reason for few days.

Even if it is run for 50% of the days, still the cost of power it is generated in that 50% days is very less compared to thermal plant same amount of power in that 50% time.

Also remember, In the past, TN suffered with thermal plants also due to "sharing" cost of coal imports, allocation etc.

could you give us the actual data on how many days, kudankulam was shut down last year or previous years? or how much units it has produced?
 

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I am not sure why we are buying 4 more units from Russia. This junk plant is shut for more days than its operating days
No other reactor in the world shut long like this koodankulam.crores wasted.dont know what's the issue.they planned to construct more reactors in this plant.they will complete it in 2030 and shut down 4 reactors every 6 months.by this time world will switch to solar power..Every year 500mw power requirement needed.solar is the only solution
 

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No other reactor in the world shut long like this koodankulam.crores wasted.dont know what's the issue.they planned to construct more reactors in this plant.they will complete it in 2030 and shut down 4 reactors every 6 months.by this time world will switch to solar power..Every year 500mw power requirement needed.solar is the only solution
Solar or wind can never be the complete replacement. Thermal, gas and nuclear are what is essentially called base load powerplants, which can give continuous supply of power without any interruption because of external factors. Like no wind, or no sun light or no water in case of hydroelectric. These can be shut down when other non base load ones operate at optimum capacity, like TN shutting down thermal power generation when wind power is very high at times.
So, unless battery technologies reach a stage where we can store and distribute power CHEAPLY to tens of millions of people for weeks or potentially months, nuclear is the only way to go. Since, the alternate coal and gas are very very bad to environment as you may know.
 

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its not junk. It has saved TN in the past, when entire unit was given to TN for few months.

365 days in a year. few days shut of here and there, wont be a big loss.

I worked in production plant, where some periodic maintenance happens. it might be a some reason for the plants to be shutdown for some reason for few days.

Even if it is run for 50% of the days, still the cost of power it is generated in that 50% days is very less compared to thermal plant same amount of power in that 50% time.

Also remember, In the past, TN suffered with thermal plants also due to "sharing" cost of coal imports, allocation etc.

could you give us the actual data on how many days, kudankulam was shut down last year or previous years? or how much units it has produced?
From 2017 onwards KKNPP capacity factor is more than 65%,this plant operating pattern is 300 full power days for one fuel loading ,then refuelling is needed is needed for 40 days,occasionally in between some times trips (this happens to all power plants like grid disturbance etc),but nuclear plant has extra care ,if plant trips get permission from AERB (from MUMBAI) for restarting.
 

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Undivided AP will be closer.

Higher consumption due to urbanization dispersed industrialization free electricity to farmers etc.
 

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Tangedco’s 1st hydel project in Trichy


Located at about 77km from Trichy, this lesser known tourist spot may soon become an integral part of the tourist map of Trichy

A 20-megawatt hydroelectric power project at a cost of Rs 338 crore has been commissioned near Puliyancholi, where a non-perennial water stream comes alive after rains in Kolli Hills. Located at about 77km from Trichy, this lesser known tourist spot may soon become an integral part of the tourist map of Trichy.

Tangedco is raising its first ever hydroelectric power project in Trichy region by utilizing water from Puliyancholai stream originating from Kolli hills.

According to senior officials from Tangedco, Trichy, total five weir – small barriers-- will be built across water stream to generate hydro power by channelising the water through Penstock lines, an enclosed pipe that delivers water to hydro turbines.

A power house, switch yard, Penstock line and approach bridges will be housed in Puliyancholai. “Apart from penstock lines, winch system will also be part of the project for maintenance of the power plant and these structures will attract tourists,” said M Vishnu, assistant engineer Tangedco, Trichy.

The project will impact economy of nearby villages by boosting tourism, said Trichy district tourism officer T Jegatheswari.

She said Puliyancholai attracts tourists only for a few months in a year when the water stream gains momentum. With this project, we are exploring the possibility of converting this place into a perennial tourism attraction. We are planning a park in Puliyancholai besides ensuring, changing area, toilets and parking area, she said. It may take another two years for the project to be completed, officials said.

 

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A new research lines up a plan to save Tamil Nadu’s TANGEDCO and your power bills
credits: business insider

NAVDEEP YADAV
FEB 9, 2021, 10:36 IST
  • The state-owned power distributor is losing ₹2.2 for every unit of power sold, according to the latest research by a Bengaluru-based group Climate Risk Horizons.
  • By taking steps which include retiring old plants and replacing them with renewable energy sources, the distribution company can save over ₹57,000 crores in 5 years
  • This will not only reduce emissions but the money saved can help ease the pressure of electricity bills on the consumer.
  • Check out the latest news and updates on the environment on our dedicated section at Business Insider.
The state-owned power distributor in Tamil Nadu, one of India’s more developed states, is losing ₹2.2 on every unit of power sold. This has led to a debt pile-up of over ₹1.13 lakh crore ($15.4 billion). Now, a Bengaluru-based research group Climate Risk Horizons has come up with a plan to save the company and consumers’ money on electricity bills.

The cash-strapped discom Tamil Nadu Generation and Distribution Corporation (TANGEDCO) can save up to ₹57,766 crores over five years if it retires older plants, rationalise under-construction projects and avails of cheaper power to meet future demand, according to the report dated February 5.

Like in many other states, TANGEDCO has been struggling for a while. In October 2020, the central government approved a ₹30,230 crore bailout package. But that would only the inevitable collapse until another bailout or corrective measures. The recommendations of the report not only aim for cleaner air but any money saved by the distribution company (popularly called discom), may help in reducing the power bills on the consumers.

Here’s a breakdown of the estimated amount the discom in Tamil Nadu can save by moving to renewables

Potential savingsCost
Phase out power plants that 20 years and older₹1,670 crore
Replace lost generation from plants 20 years and older with renewable energy₹1,459 crore p.a. / ₹7,295 crore (5 years)
Freeze expenditure on early-stage plants₹26,514 crore
Phase out all plants with tariffs > ₹4kWh & replace with ₹3/kWh₹6,097 crore p.a. / ₹30,485 crore (5 years)
Total savings₹34,100 crore (first year) ₹57,766 crore (5 years)


Retire the old plants

Some of the ideas shared in the report should, ideally, be under execution. For example, shutting down coal-based power plants that are older than 20 years like the ones in Thoothukudi, Mettur, Salem, and North Chennai.

Such plants are typically less efficient and pollute more. Legally, they should be moving towards meeting the 2015 air and water emission norms notified by the Ministry of Environment, Forests and Climate Change. The deadline for compliance with the norms is 2022.
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However, so far, little progress has been made on reducing the sulfur dioxide emissions caused by coal combustion boilers in these plants. The researchers say it may be cheaper to replace these plants instead of trying to upgrade them, which may cost another ₹1,600 crore.

For the same reason, the authors of the report also say that under-construction projects like the one in Uppur, Udangudi and Ennore should be frozen.

The recommendation is similar to the one made by Lord Adair Turner of the Energy Transitions Commission who said that every bit of power capacity that India adds hereon should be from renewable sources.

The power from new renewables in India is much cheaper than power from fossil fuels like coal. In India, solar bids declined from a high of 10.95 per kilowatt-hour (kWh) in 2010 to less than ₹2/kWh now. By 2030, renewable power in India is expected to be 56% cheaper than new-build coal.

A new research lines up a plan to save Tamil Nadu’s TANGEDCO and your power bills
BI India

However, not just the state governments, even the central government seems to be going for a rather hybrid approach. “Actually, we are doing rather well in terms of creating solar capacities, but you know there is also a resilience issue here. While we go into solar, we will be making sure that we do have back up capacities from traditional fields, so we're also opening up some new coal mines. So you do need some resilience, some sort of shock absorbers to allow, while we build out these new capacities well,” said Sanjeev Sanyal, the Principal Economic Advisor at the Ministry of Finance in an interview with Business Insider.
 
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