DRP 170624: Sardar Sarovar Power House to operate to reduce Dam Water level in anticipation of surplus rains: Welcome, but…

June 17, 2024February 28, 2026 SANDRPLeave a comment

(Feature Image: Sardar Sarovar Dam. Image Source: The Economic Times, Sept. 2022)

The news this week that SSNNL has decided to operate the 1200 MW River Bed Power House and the 250 MW Canal Head Power house to reduce the water level in Dam from 122.28 meters on June 14 to around 115 m before the monsoon inflows start, in anticipation of the above average rainfall anticipated during SW Monsoon 2024 is welcome. One hopes this is sign of SSNNL, Gujarat Government and the Narmada Control Authority have learnt some lessons after the avoidable flood disasters brought by SSP in 2023 and earlier in 2019 and 2020, as revealed by SANDRP’s analysis in each of these years.

One hopes this is not just one-off ad-hoc decisions, but part of a systemic change. This will require an integrated basin level reservoir operation policy including all the major dams of the Narmada Valley and put it out in public domain along with clearly defined Standard Operating Procedure, and names of the responsible officials for each of such major dam in the basin. The Central Water Commission will also need to be held accountable for its flood forecasting including the 7-day advance forecasts.

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Dams

Photo Blog: Chasing Streams, Springs of Asan River in Dehradun

June 11, 2024June 26, 2024 SANDRPLeave a comment

(Feature Image: Asan river flowing through residential areas of Sevala Kalan upstream Chandrabani temple)

Despite being an important tributary to the Yamuna River in Shivalik hills of Dehradun, the Asan appears among the least explored and documented rivers. While, most of the people believe and even available online maps depict Chandrabani temple as origin place of the Asan, a field visit to track the river course reveals some interesting information.

This part one of photo blog documents the river course in its founding catchment sharing pictures and our field observations about the river’s origin place, past history and present situation. The second part of the photo blog will cover the remaining length of the river lying between Chandrabani temple and Asan barrage.

*Google Earth map showing places mentioned in the blog. An interactive map of the same can be seen here.*

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DRP News Bulletin

DRP 200524: After Ten years of Namami Gange and Rs 40 000 Cr expenditure Ganga remains dirty

May 20, 2024February 28, 2026 SANDRP1 Comment

(Feature Image: Untreated effluents being discharged in Gang river through ‘Chor’ nullah in Kanpur on May 19, 2024. Image Source: Sceenshot of ABC News Media report)

The reports this week from Ganga basin rivers clearly show that after ten years of Namami Gange and NMCG (National Mission for Clean Ganga) efforts and expenditure of over Rs 40 000 Cr, there is no improvement in even river pollution, leave aside the state of river flows or state of the rivers in the Ganga basin.

In fact, there is nothing to show that even the new STPs are making any difference to the river even with respect to the limited objective of sewage treatment. As highlighted in the report below, until and unless the governance of STPs become more transparent, accountable and participatory, there is no hope for change, no matter how much money is spent, how much new STP capacity is added or what technology is used. Only a responsive, confidence inspiring governance can make a difference. But there is no interest in working in that direction from the government.

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Yamuna River

‘Let Yamuna Flow’: A River’s Appeal to Political Parties

May 20, 2024May 20, 2024 SANDRPLeave a comment

(Feature Image: An aerial view of Wazirabad Barrage shows a drying up Yamuna in May 2022. Image Credit: PTI/TNIE)

In the wake of Lok Sabha election 2024 in Delhi on May 25, the civil societies and concerned citizens on behalf of River Yamuna appeal to the political parties to address the critical issue of absence of environmental flows adversely impacting the river health in the national capital.

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DRP News Bulletin

DRP 130524: Unreliable Hydropower poses new challenges for India

May 13, 2024February 28, 2026 SANDRPLeave a comment

(Feature Image: NHPC’s under construction 2000 Mw Subansiri Lower Hydro Power Project. Source: PIB, June 2023)

As per this Reuters report based on official information and statements, in June 2024 India will face the biggest peak hour power shortfall in 14 years, mainly due to the slump in hydropower generation. This is the result of not only pushing hydropower projects over the decades, but also not taking any steps to optimize peaking power generation from existing hydro or doing anything worthwhile to manage peak load. India’s hydropower generation had steepest fall in four decades in the year ending on March 31 2024, which was another reason not on rely on unreliable hydropower projects. The regular and frequent disasters that we see connected with hydropower projects in almost every month and more frequently in monsoons should be another reason in this regard.

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DRP News Bulletin

DRP 060524: Study on dam induced river flooding in Peninsular India

May 6, 2024February 28, 2026 SANDRPLeave a comment

(Feature Image: (a) Locations of streamflow gauges with catchment boundaries in six major river basins of Peninsular India, (b) elevation map and mean annual maximum runoff rate (streamflow per unit catchment area), (c) Aridity Index (AI) and (d) Baseflow Index (BFI). The maps in first row are prepared in QGIS (Version 2.14.0 ‘Essen’ (2016), URL: http://qgis.org) and the maps in second row are generated using R (Version 4.2.2 (2022), URL: https://www.R-project.org/). Source: Baseflow significantly contributes to river floods in Peninsular India )

A recently published study, see details given below throws light on the role of groundwater contribution to baseflow in rivers and their flooding in Peninsular India’s river like Narmada, Tapi, Mahanadi, Godavari, Krishna and Cauvery. The found that while baseflow contributes more to river flows, its share in the flood event flow magnitude decreases as surface runoff accounts for a larger proportion of flood discharge on the day of the flood.

Most significant are the findings related to dam induced flood that SANDRP has been writing for long and the finding corroborate exactly what SANDRP has been saying: Sudden releases of water from a dam can raise river levels during extreme rainfall events, especially when the dam is nearly full. The impact of sudden floods is more destructive because people living in nearby areas are often unprepared. Without a dam, floodwaters rise slowly over time, allowing people to take preventive measures. However, sudden floods caused by dam releases offer little or no time to prepare, increasing the risks associated with dam-induced flood hazards. Furthermore, the construction of dams alters the natural regime of rivers, leading to changes in sediment transport and erosion patterns. These changes can heighten the risk of flooding downstream from a dam.

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Yamuna River

Yamuna Manthan 0524: SC Stays 4 NBWL cleared Dams in Kalesar Wildlife Sanctuary

May 2, 2024May 2, 2024 SANDRPLeave a comment

(Feature Image: Google Earth Image showing location of 6 proposed dams in Kalesar national park area by Haryana government)

In a welcome judicial intervention, the Supreme Court on April 24, 2024 has stayed building of four dams inside Kalesar National Park in Yamuna Nagar district of Haryana. Issuing notices to Centre and Haryana governments, the apex court noted that the dams namely Chikan, Kansli, Khillanwala and Ambawali would not achieve the intended purposes and would prove detrimental to wildlife, biota and eco-system of the National Park.

Disappointingly the National Board of Wildlife (NBWL) had approved the dams ignoring the Wildlife Institute of India (WII) report warning about adverse impacts of these dams on the terrestrial as well as aquatic biodiversity in the protected area. As per the WII report, the Irrigation Department, Haryana had planned building of six dams costing about Rs. 125 cr. on streams feeding Pathrala river in the national park.

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DRP News Bulletin

DRP 290424: Why is Climate Change not major election issue?

April 29, 2024February 28, 2026 SANDRPLeave a comment

(Feature Image: Vehicles stuck in debris following a recent cloudburst at Saat Meel in Mandi, on August 20, 2023. (PTI Photo/Money Control)

World’s largest democratic exercise is now ongoing in India to elect the members of India’s Lok Sabha. Over 97 crores are eligible to vote in these elections. One of the biggest factors that is adversely affecting people across India currently is Climate Change. It is affecting almost every aspect of life and the adverse impacts are only increasing with every passing year. This is man-made disaster basically happening due to anthropogenic reasons, affecting air, water, climate, food, health, livelihoods, disasters and so on, affecting everyone. Currently, India is also a major contributor to the climate change causing green-house gas emissions, even though historically, the developed countries have contributed much more.

More importantly, the development options that the elected government choose will decide how the people will be impacted by climate change. The government has large number of options for pathways to development. Considering all this, one expected that climate change responses will be a major issue in these elections. But that is clearly not the case. BJP and Congress, two of the biggest parties fighting the elections, have mentioned climate change in their manifestos, but neither has dealt with this important issue with the detail and seriousness required. Nor are any of them making climate change a major election issue. One expects the ruling party to at least respond in greater detail and seriousness to this issue, but that is not the case.

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DRP News Bulletin

DRP 220424: International Energy Agency accepts high-cost high risk hydro is no longer High Priority

April 22, 2024February 28, 2026 SANDRPLeave a comment

The International Energy Agency (IEA) has accepted in its latest World Energy Investment Special Report titled “Reducing the Cost of Capital: Strategies to unlock clean energy investment in emerging and developing economies” has candidly accepted that hydropower (excluding pump storage) is no longer the high-priority sector.

Among the challenges hydropower faces, according to IEA, include long permitting time necessary considering the high and complex impacts of hydropower projects amd delays during construction. IEA figures show that the capacity of Chinese developed hydropower projects that had high proportion of installed hydropower capacity globally in any year for decades, was the lowest in 2023 since 2014. The report accepts that high cost of capital with high interest rates can have a major impact on Cost of electricity, affecting competitiveness of the hydropower projects.

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Yamuna River

Yamuna Manthan 030424: DDA Continues to Destroy River Floodplains

April 3, 2024May 1, 2024 SANDRP1 Comment

(Feature Image: Huge part of Yamuna floodplain raised by massive soil dumping near Bela Estate just upstream Shashtri Park Metro Depot in North East Delhi. Photo Credit: Vivek Nigam, Photo Journalist Amar Ujala, Source: Principal Correspondent in Amar Ujala, Delhi)

In latest example proving Delhi Development Authority’s (DDA) utter failure in protecting Yamuna River floodplains from abuse and encroachment, a large part of floodplain land has been levelled by soil dumping thus raising it by several meters at Bela Estate farm near Shashtri Park Metro Depot. As per the reports, the DDA has allotted about 19.5 ha of floodplain to forest dept for compensatory plantation. The plantation work at the site like at most of the sites on Yamuna floodplain in Delhi has suffered damages during July 2023 floods. And the levelling at the Bela Estate site is being done in the name of protecting the compensatory plantation.

The site is among few remaining floodplain patches available for spread of flood waters. The floodplain area on western bank at the location is less and already developed. Due to natural gradient, the part of floodplain on eastern side undergoes periodic floods. The patch was under several feet floodwater in July 2023. The floodplain immediately downstream the site has already been encroached by the bridge road, metro depot and buildings. Hence, raising of floodplain here would not only reduce spread of flood waters but also hamper the groundwater recharge.

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