Showing posts with label Department of Atomic Energy. Show all posts
Showing posts with label Department of Atomic Energy. Show all posts

Friday, October 5, 2012

Five points on the future of nuclear power in India

In response to my recent article in The Hindu, The real questions from Kudankulam” (edit page, September 14, 2012), supporting nuclear power and arguing for an independent regulatory authority, I received much feedback, largely positive, some critical; some of which deserves a response. Many of these points have been made by others, repeatedly, but some are new to me. 

1) Independent oversight: Two credible people said that I was too critical of the Department of Atomic Energy (DAE) and particularly the current regulatory authority, the Atomic Energy Regulatory Board (AERB), which they said has been doing its job “without fear or favour.” This may be true (indeed, India’s nuclear safety record is outstanding) but, if the Kudankulam mess teaches us anything, it is that perceptions matter as much as reality. A truly independent AERB successor, the proposed Nuclear Safety Regulatory Authority (NSRA), with transparency, significant powers and, ideally, international representation, would also serve the cause of safety in future. That the AERB has acted fairly and independently so far does not guarantee that it will always do so. 

Another point is that the NSRA cannot draw on independent nuclear expertise in India because none exists outside the DAE (one reason for international representation). We should encourage investments by the private sector, subject to NSRA oversight, and encourage leading non-DAE institutions, such as the Indian Institutes of Technology, to develop programmes in nuclear engineering. Meanwhile, the NSRA will require civil engineers, seismologists, radiation safety specialists, and other experts besides nuclear scientists, who exist independently of the DAE. 

2) Risks and reality: The probability of a nuclear catastrophe may be very low but is not zero. How can we expose people to such a risk? Indeed, statements from the DAE like “Kudankulam is 100% safe” are not credible and a proper risk assessment is required. But, based on experience, the risk of a catastrophic accident at a nuclear plant seems minuscule compared to a similar risk at unscrutinised chemical factories everywhere: despite Bhopal, which is yet to be cleaned up adequately, there is no demand for bans on such factories. Most nuclear accidents have had few or no fatalities and no leak of radiation. In the past 25 years (since Chernobyl), only Fukushima has resulted in significant radiation exposure to the public. Few industries can claim a better record of safety. 

As for nuclear liability: all of us deserve answers on this. It is not consistent to assert safety while denying liability, as the government apparently seeks to do. 

What of military or terrorist attacks? Israel attacked an Iraqi plant in 1981 and a putative Syrian plant in 2007, but neither plant was loaded with fuel. An attack on Iran could have graver results. To cause a meltdown, such an attack would have to destroy the cooling system but keep the nuclear fuel confined. This looks unlikely, but I’m not a nuclear scientist and the question should be addressed by the DAE. Terrorist threats on the ground look still less likely to succeed. As for a 9/11 type attack: according to the U.S. Council on Foreign Relations website, “no one knows” what would happen if a commercial airliner crashed into one of the older U.S. plants, though many of them are built to withstand impacts from light planes. However, experts rule out a nuclear explosion. A conventional explosion can still spread radiation, but not on the scale of Chernobyl. These are points that, I believe, the DAE should address. 

3) Emergency preparedness and liability: In the event of a disaster at Kudankulam, it is impossible to evacuate such an area rapidly, and medical facilities are inadequate. But this is not unique to nuclear power. Cyclones, floods, industrial accidents all occur regularly and we have not learned our lessons. The DAE should take the lead in ensuring disaster preparedness near its installations, but cannot be blamed for our country’s larger failures. 

Monday, April 30, 2012

India can make world’s cheapest nuclear reactors, Department of Atomic Energy chief says

MUMBAI: Now, India can build cheaper nuclear reactors, than even South Korea. Talking to TOI on the eve of his retirement, Dr Srikumar Banerjee, secretary in the Department of Atomic Energy (DAE), said India can now manufacture nuclear reactors at $1,700 per unit. Come May, Banerjee will make way for Ratan Sinha, currently director of Bhabha Atomic Research Centre (BARC), who will take over as secretary, DAE.

"We are now the world's most economical manufacturer of nuclear reactors. Our cost per unit, of $1,700 (for a 700mw reactor) is substantially less than our nearest competitors. The average international cost is now between $2,500 and $3,000 (for a 1,000mw reactor). South Korea demonstrated its ability to build nuclear reactors for less when it wrested a massive reactor deal for the UAE from French giant, Areva, a couple of years ago.

With the protests in Kudankulam piping down, Banerjee said DAE was waiting for a couple of clearances from the Atomic Energy Regulatory Board (AERB) to start Kudankulam-1.

The AERB will have to conduct a robotic inspection of the pressure vessel in the Kudankulam plant. This is done after what they call the "hot run", which is a kind of a rehearsal but without nuclear fuel. "After this, they open the cap of the pressure vessel to do a robotic inspection. Only after clearing this inspection are we allowed to put in nuclear fuel," said Banerjee.

The DAE chief said he was looking at Kudankulam going "critical" by mid-June. "The approach to criticality should happen around that time," he said. "That will be exciting." Six months down the line, Banerjee said the DAE hopes to commission the second Kudankulam plant as well.

Indian companies manufacturing components and systems for nuclear reactors, Banerjee said, can now do the same work for much less cost. For instance, he said, L&T, which supplies many critical components for the Indian nuclear and defence sectors, can make the large reactor vessel in their new Hazira plant. This is something of an achievement because it's traditionally been the preserve of Japanese engineering expertise.

Banerjee was clear that the despite Fukushima, countries like India will have a high demand for nuclear energy. "In the months after Fukushima, we have received expressions of interest from Haryana, Rajasthan and Madhya Pradesh to set up nuclear power plants. We will do all of them," asserted a confident DAE chief.