Indian Meteorological Department

River Wise Rainfall in Monsoon 2017

India’s most important season, the June-Sept South West Monsoon has just ended officially on Sept 30, 2017. India Meteorological Department (IMD) reported that India received 841.3 mm rainfall in these four months of monsoon 2017, compared to normal rainfall of 887.5 mm. So Monsoon 2017 rainfall was 5.2% below normal.

The standard dominating reporting of monsoon rainfall figures in India is either state wise or sub division wise[i]. Accordingly, IMD reported that 25 sub divisions reported normal rainfall, 5 sub divisions[ii] reported excess rainfall and six sub divisions[iii] reported deficit rainfall, as can be seen from accompanying IMD sub division wise map of 2017 monsoon rainfall figures. Continue reading “River Wise Rainfall in Monsoon 2017”

Dams

India’s National Register of Large Dams: Shows how little we know about our dams

The Central Water Commission (CWC) of India’s Union Ministry of Water Resources periodically updates India’s National Register of Large Dams (NRLD), the latest edition seems to have been put up recently[i]. Significantly, this latest edition reports huge jump in number of large dams in India, compared to the previous editions from 2009 that SANDRP has been monitoring. The 2009 edition of NRLD had 5100 large dams and the editions from 2012 to 2016 had listed 5190 to 5170 large dams, but the 2017 edition suddenly reports that now India has 5701 large dams, a jump of over 510 from the editions in last five years. This shows that neither states had been reporting correct figures of number of large dams in India, nor was CWC bothered to collect correct basic information about large dams. Continue reading “India’s National Register of Large Dams: Shows how little we know about our dams”

Dams

India’s hydro generation drops to below 10% for the first time

For the first time in independent India’s history, hydropower generation from large hydropower projects in India in 2016-17 year fell below 10% of total electricity generation and is likely to go further down in years to come. It is well known that hydropower generation as proportion of total power generation has been going down. However, this proportion is generally seen in terms of installed capacity (measured in Mega Watts), and not actual generation (measured as Million or Billion Units[i]). Continue reading “India’s hydro generation drops to below 10% for the first time”