1. Meeting of Generation Wing Officers
Venue: Vidyut Bhawan, Shimla Date: 21st Oct 09

2. Importance of Hydel Energy
Hydel Generation in HP in summer months suffices to meet the consumer demands in the State and in the winter months the fall in Generation is compensated by making Banking arrangements.
Hydro-generation helps in maintaining the vital Grid parameters i.e. Frequency with in limits.
The entire Northern Grid is integrated rest of the country except Southern Grid and for the safety of Grid any overdrawl from the Grid is viewed seriously by CERC and some States like Tamilnadu, Rajasthan & Delhi stand penalised by CERC in view of Section- 142 of EA 2003.

3. Factors Taken for the purpose of Analysis of Determining the Optimum Generation Level
Availability of Discharge
Availability of Storage capacity
Design Vs Actual Energy – Requirement of analysis on Monthly basis
Effective, Proper & Timely Maintenance based on best maintenance practices.
Machine Availability & its effect on Plant Load factors
Adequate Spares / Runners
Monitoring & controlling the forced outages

4. List of HPSEB’s Own Power Houses
Sr.No.
Power Plant
Number of units
Year of Installation
Design Energy 1
Larji (126MW) 3 2
Babha (120MW)
1989
Bassi (60MW) 4
1970 & 1981
Giri (60MW)
1978 5
Ghanvi (22.50MW)
2000
858.70 6
Andhra (16.95MW)
1987
803.20 7
Khauli
2007
459.50 8
Baner (12 MW)
1996
558.20 9
Gaj (10.50 MW)
352.50 10
Binwa (6 MW)
1984
269.10 11
Gumma
166.60 12
Nogli
1963
100.70 13
Chaba
1912
70.50 14
Thirot (4.5 MW)
---

5. List of HPSEB’s Own Power Houses
Sr.No.
Power Plant
Number of units
Year of Installation
Design Energy 15
Rongtong (2 MW) 2
1986
1987 16
Chaba (1.75 MW) 3
1912
1919 17
Rukti (0.375 MW) 4 18
Chamba (.350 MW)
1908 1
1985 19
Killar (0.1 MW) 20
Huli (1.5 MW)
2004
Diesel Generating Stations 21
Keylong (0.133 MW)

6. Trends in Hydro Generation (2006-2009)

8. Actual Energy Vs Design Energy (Charts of various Power Houses)

20. Problem Areas
Bassi
Giri
Ghanvi
Khauli
Baner
Andhra

21. Deterministic factor for Better Hydro Generation
Both these factors are very vital and needs to monitored on day to day basis so that better utilization of Machines and water resources are ensured.

22. Expected Plant Load Factor (PLF)
In Summers:
80 to 100% of Total Plant Capacity
In Winters:
20 to 25% of Total Plant Capacity
Where as actual position…

23. Percentage Plant Load Factors (PLF) of Power Houses
Sr.No.
Power Plant
Actual PLF 1
Babha (120MW)
Summer
79.19%
75.47%
70.07%
57.29%
79.80%
Winter
21.30%
24.48%
17.72%
22.47%
25.68% 2
Larji (126MW)
---
9.25%
72.69%
82.11%
26.04%
24.98%
23.65% 3
Bassi (60MW)
67.41%
70.82%
71.36%
75.38%
60.71%
28.66%
18.73%
23.43%
23.96%
18.56% 4
Giri (60MW)
31.45%
47.45%
33.97%
43.82%
61.24%
12.65%
10.67%
14.55%
9.52%
12.77% 5
Ghanvi (22.50MW)
47.67%
48.22%
38.26%
53.77%
59.40%
23.67%
17.26%
18.84%
19.30%
15.91% 6
Andhra (16.95MW)
43.30%
55.36%
56.75%
56.44%
70.00%
24.54%
23.10%
18.63%
23.83%
18.22% 7
Baner (12 MW)
47.40%
57.78%
52.38%
53.56%
52.97%
31.26%
18.83%
27.04%
21.57%
14.18% 8
Gaj (10.50 MW)
63.12%
79.49%
61.05%
65.83%
59.90%
43.23%
21.84%
37.01%
26.25%
18.10% 9
Binwa (6 MW)
65.59%
82.86%
65.45%
73.26%
71.25%
53.97%
36.66%
44.84%
43.26%
24.03%

24. Points for Consideration
The maintenance period of Hydel machines, which is invariably at least two months at present, needs to be curtailed so that there is lesser generation loss on that account.
Best maintenance practices be adopted and its results reviewed every year.
The maintenance of all the power houses should be allowed only in winter months and no machine shall be allowed to avail shutdown from w.e.f April to September every year.
The storage at Bhaba, Giri which was initially 3 hours of full generation has now reduced drastically. Now at Bhaba the storage is available for 1 hour’s generation only and at Giri it has virtually reduced to ½ hr to 1 hour. These storages need to be revived.

25. Points for Consideration
Bassi is dependent on Shanan for generation and if generation at Shanan is erratic, it affects Bassi too. An alternative needs to be explored so that there is no generation loss at Bassi.
RMU & LE of Bassi is going on since the last one year & it is not known when the machine shall come on bar. This period of RMU & LE also needs to be curtailed to bare minimum.
Making DG Set and auxiliary transformer at Bhaba HEP & Commissioning of DG Set at Larji HEP
Skilled Manpower in Power Houses
Incentive for workforce at Power House to attract talent.

26. Schematic Diagram of Bassi Power House

27. THANK
YOU