Lok Sabha Question No. 4018 (UNSTARRED), answered on 2024-12-19
Subject: Process for Disposal  of Fly Ash
Ministry: POWER
Asked by: Shri Shyamkumar Daulat Barve

## GOVERNMENT OF INDIA MINISTRY OF POWER

## LOK SABHA UNSTARRED QUESTION NO.4018 ANSWERED ON 19.12.2024

## PROCESS FOR DISPOSAL OF FLY ASH

†4018. SHRI SHYAMKUMAR DAULAT BARVE:

Will the Minister of POWER be pleased to state:

(a) the  details  of  quantity  of  pound  ash  and  fly  ash  generated  from  coal consumption in power plants under National Thermal Power Corporation (NTPC) during the last five years and the current year, plant and year-wise;

(b) whether any mechanically designed covered vehicles are not being used by NTPC Ltd. for transportation of such ash;

(c) if so, the details thereof;

(d) the process of disposal and transportation of fly and pound ash; and

(e) the criteria of NTPC Ltd. for entering into contracts with public or private companies for management of fly ash?

## A N S W E R

THE MINISTER OF STATE IN THE MINISTRY OF POWER

(SHRI SHRIPAD NAIK)

(a) :   Plant  wise  details  of  ash  generated  (including  pond  ash)  from  NTPC thermal power plants during last five years and the current year are given at Annexure.

(b) & (c) : Dry fly ash is transported in closed bulkers to cement manufacturing plants,  brick  manufacturing  units  etc.  from  the  power  plant  and  pond  ash  is transported from Ash Dyke through Bulkers / Trucks covered with Tarpaulin, in an eco-friendly manner.

……..2.

(d) :    The  process of disposal and transportation of ash (dry fly ash and pond ash) in NTPC Thermal Power Plants (TPPs) is as under:

- (i) Ash  generated  from  TPPs  is  being  utilized  for  eco-friendly  purposes  in accordance  with  Ministry  of  Environment,  Forest  and  Climate  Change (MoEF&CC) notification dated 31.12.2021 , as amended from time to time, to meet the statutory compliances of ash utilization;
- (ii) Storage and evacuation of ash are being done in safe, scientific and ecofriendly manner. NTPC considers ash utilization as an integral process of power generation and has a dedicated policy for its utilization;
- (iii) Dry fly ash is collected from the high efficiency Electrostatic Precipitator (ESP) installed for air emission control and stored in 'Ash Silos' and issued through  Dry  Ash  Extraction  System  (DAES)  in  closed  bulkers  to  Cement manufacturing  plant,  brick  manufacturing  units  etc.  from  the  plant;
- (iv) Pond  ash  is transported  in covered  Bulkers  to  projects like  Road Construction  by  NHAI  (across  India),  Public  Works  Department  (PWD), Road Development Corporation, etc.;
- (v) All necessary fugitive dust control measures are implemented at thermal power plants;
- (vi) Pond Ash is stored in Ash Dyke and further, evacuated / transported in an eco-friendly manner;
- (vii) Most of the area in ash pond remains wet which controls fugitive dust;
- (viii)  All ash loaded trucks are covered with Tarpaulin to avoid any ash spillage on the roads.

(e) : NTPC Ltd. enters into contracts with any public or private companies for transportation  &  management  of fly ash through transparent and open competitive  bidding  in  accordance  with  guidelines  issued  by  MoEF&CC  and Ministry of Power (MoP), from time to time.

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## ANNEXURE

## ANNEXURE REFERRED IN REPLY TO PART (a) OF UNSTARRED QUESTION NO.4018 ANSWERED IN THE LOK SABHA ON 19.12.2024

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Details of ash generated (dry fly ash and pond ash) from NTPC Thermal Power Plants (TPPs)

| Sl. No.      | Station         | FY 2019-20                 | FY 2019-20                | FY 2020-21                 | FY 2020-21                | FY 2021-22                 | FY 2021-22                | FY 2022-23                 | FY 2022-23                | FY 2023-24                 | FY 2023-24                | FY 2024-25 (Till November)   | FY 2024-25 (Till November)   |
|--------------|-----------------|----------------------------|---------------------------|----------------------------|---------------------------|----------------------------|---------------------------|----------------------------|---------------------------|----------------------------|---------------------------|------------------------------|------------------------------|
| Sl. No.      | Station         | Total Ash Generation (LMT) | Pond Ash Generation (LMT) | Total Ash Generation (LMT) | Pond Ash Generation (LMT) | Total Ash Generation (LMT) | Pond Ash Generation (LMT) | Total Ash Generation (LMT) | Pond Ash Generation (LMT) | Total Ash Generation (LMT) | Pond Ash Generation (LMT) | Total Ash Generation (LMT)   | Pond Ash Generation (LMT)    |
| 1            | BARH SUPER      | 20.64                      | 15.28 20.4                | 12.54                      | 21.56                     |                            | 15.48                     | 32.56 24.47                | 37.28                     | 29.26                      | 31.67                     |                              | 26.23                        |
| 2            | BHILAI          | 7.07                       | 0.54 10.48                | 5.21                       | 11.42                     | 6.94                       | 10.77                     | 4.24                       | 11.61                     | 4.38                       | 7.55                      |                              | 2.75                         |
| 3 BONGAIGAON |                 | 7                          | 3.82 5.24                 | 1.95                       | 7.57                      | 3.18                       | 10.25                     | 4.48                       | 11.74                     | 5.66                       | 7.45                      |                              | 2.7                          |
| 4            | BRBCL NABINAGAR | 11.23                      | 5.67 12.98                | 9.17                       |                           | 16.11                      | 13.46                     | 17.96 14.33                | 20.28                     |                            | 16.84                     | 12.58                        | 9.35                         |
| 5            | DADRI           | 15.2                       | 2.64 9.41                 | 0.00                       |                           | 12.85                      | 0.71                      | 22.9                       | 1.82                      | 23.32                      | 1.75                      | 17.6                         | 1.71                         |
| 6            | DARLIPALLI      | 1.12                       | 1.12 15.48                |                            | 15.43 30.63               |                            | 30.6                      | 38.86                      | 37.9                      | 43.1                       | 38.99                     | 25.68                        | 19.38                        |
| 7            | FARAKKA         | 31.81                      | 28.58                     | 28.25                      | 18.9                      | 27.88                      | 22.59                     | 25.22                      | 23.22                     | 29.84                      | 27.82                     | 22.96                        | 21.05                        |
| 8            | GADARWARA       | 2.88                       | 2.87 9.44                 |                            | 8.66 16.85                |                            | 15.72                     | 19.59                      | 18.99                     | 21.33                      | 20.93                     | 13.77                        | 13.39                        |
| 9            | IGSTPS JHAJJAR  | 8.62                       | 0.00 8.46                 |                            | 0.00 16.42                |                            | 6.07 18.3                 | 5.44                       | 21.43                     |                            | 8.75                      | 15.68                        | 8.55                         |
| 10           | KAHALGAON       | 48.48                      | 39.36                     | 40.17                      | 28.75                     | 42.31                      | 31.33 35.47               |                            | 25.74 45.95               |                            | 35.72                     | 36.32                        | 31.85                        |
| 11           | KANTI TPS       | 8.25                       | 7.54 7.1                  |                            | 5.82                      | 7.88                       | 6.64                      | 7.54                       | 6.09 8.5                  |                            | 7.41                      | 5.13                         | 4.33                         |
| 12           | KHARGONE        | 1.27                       | 1.21 8.13                 |                            | 3.98                      | 14.08                      | 7.58                      | 12.99                      | 5.53 17.65                |                            | 8.15                      | 14.6                         | 6.82                         |
| 13           | KORBA           | 49.98                      | 49.21 47.93               | 33.36                      |                           | 51.67                      | 50.59                     | 54.57                      | 52.9 51.95                | 49.9                       |                           | 34.55                        | 32.11                        |
| 14           | KUDGI           | 8.93                       | 0.21 9.82                 | 5.34                       |                           | 13.25                      | 7.12 22.3                 |                            | 9.54 29.79                |                            | 10.46                     | 19.81                        | 6.62                         |
| 15           | LARA            | 5.66                       | 5.62 13.52                |                            | 13.38 32.31               |                            | 32                        | 36.04 35.11                | 31.71                     | 29.02                      |                           | 20.19                        | 19.98                        |
| 16           | MOUDA           | 23.3                       | 14.34 17.06               |                            | 10.15 34.06               |                            | 19.44 34.05               | 11.45                      | 39.24                     |                            | 16.33                     | 23.14                        | 7.64                         |
| 17           | NPGC NABINAGAR  | 6.44                       | 3.13                      | 10.43                      | 5.04                      | 16.84                      | 8.27                      | 26.07 14.5                 | 29.92                     |                            | 19.61                     | 24.19                        | 18.2                         |
| 18           | NSPCL DURGAPUR  | 2.25                       | 0.00                      | 2.01                       | 0.09                      | 2.77                       | 2.5                       | 3.22                       | 1.72 3.11                 |                            | 1.76                      | 2.09                         | 1.2                          |

| 19   | RAMAGUNDAM           |   38.16 |   22.46 |   38.57 |   4.17 |   39.38 |   27.74 |   43.25 |   28.31 |   45.49 |   29.82 |   28.5 |   22.15 |
|------|----------------------|---------|---------|---------|--------|---------|---------|---------|---------|---------|---------|--------|---------|
| 20   | RIHAND               |   39.01 |   38.01 |   39.22 |  31.06 |   37.09 |   33.49 |   40.38 |   36.17 |   42.23 |   38.69 |  27.77 |   25.32 |
| 21   | SIMHADRI             |   26.28 |   18.85 |   24.5  |  13.57 |   35.77 |   20.69 |   34.91 |   26.34 |   31.1  |   19.92 |  21.09 |   16.11 |
| 22   | SINGRAULI            |   32.06 |   31.96 |   29.84 |  29.79 |   30.34 |   30.24 |   30.09 |   28.96 |   30.33 |   30.33 |  24.1  |   24.1  |
| 23   | SIPAT                |   49.05 |   41.55 |   52.47 |  47.39 |   51.98 |   47.54 |   48.4  |   44.98 |   53.53 |   42.71 |  40.92 |   28.46 |
| 24   | SOLAPUR              |    1.53 |    0    |    7.58 |   0.15 |   11.36 |    3.65 |   13.38 |    1.71 |   16.14 |    3.94 |  11.33 |    4.13 |
| 25   | TALCHER-KANIHA       |   70.09 |   68.8  |   68.45 |  66.96 |   69    |   62.29 |   64.85 |   55.07 |   68.7  |   53.27 |  46.58 |   26.53 |
| 26   | TALCHER-Thermal*     |   11.84 |   11.84 |   11.89 |   9    |    0    |    0    |    0    |    0    |    0    |    0    |   0    |    0    |
| 27   | TANDA                |    9.69 |    6.18 |   16.74 |  12.09 |   22.56 |   15.94 |   26.01 |   20.53 |   26.07 |   18.94 |  19.84 |   16.43 |
| 28   | UNCHACHAR            |   21.65 |   12.46 |   19.77 |  11.48 |   20.85 |   11.73 |   20.19 |   11.04 |   20.93 |   11.84 |  17.84 |   10.64 |
| 29   | VINDHYACHAL          |   88.57 |   85.24 |   87.14 |  79.88 |   82.37 |   75.68 |   76.64 |   68.48 |   66.82 |   57.2  |  43.84 |   38.31 |
| 30   | BARAUNI TPS          |    0.73 |    0.71 |    3.3  |   2.7  |    6.01 |    2.94 |   10.77 |    4.93 |    9.84 |    4.53 |   7.03 |    2.93 |
| 31   | BHILAI CAPTIVE       |    1.69 |    0.14 |    1.35 |   1    |    1.81 |    1.48 |    1.43 |    0.94 |    1.77 |    1.31 |   1.26 |    0.96 |
| 32   | MEJA TPP             |    2.74 |    2.74 |   10.2  |   4.48 |   18.23 |    6.65 |   15.73 |    7.13 |   17.85 |    6.81 |  13.46 |    6.15 |
| 33   | NSPCL ROURKELA       |    3.72 |    2.44 |    3.59 |   2.62 |    4.2  |    3.06 |    4.97 |    2.6  |    6.32 |    2.26 |   4.85 |    2.27 |
| 34   | TELANGANA STPP       |    0    |    0    |    0    |   0    |    0    |    0    |    0    |    0    |    6.81 |    6.81 |  17.67 |   16.16 |
| 35   | VALLUR               |   17.33 |    9.13 |   12.77 |   6.46 |   24.47 |   13.27 |   29.46 |   19.63 |   18.29 |   10.84 |  17.44 |   11.75 |
| 36   | NORTH KARANPUARA STP |    0    |    0    |    0    |   0    |    0    |    0    |    0    |    0    |   14.73 |   14.73 |  19.39 |   19.39 |
|      | Grand Total          |  674.27 |  533.65 |  703.69 | 500.57 |  831.88 |  636.61 |  889.12 |  654.29 |  954.7  |  686.69 | 697.87 |  505.65 |

Note: Total Ash Generation includes dry fly ash and pond ash; *Operation has been stopped from 31.03.2021

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