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The Upper Indravati Project envisages diversion of water , of the indravati river in its upper reaches into the Mahanadi vally for power generation and irrigation. The project would involve construction of 4 dams across the Indravati and its tributaries 8 dykes and two inter-linking channels to from a single reservoir with a live capacity of 1435.5 Mcum, 4.32 km. tunnel, a power house with installation of 4 units of 150 MW each , 9 km. tail race channel and an irrigation barrage across Hati river with the associated irrigation canals.

 

Upper Indravati Hydro Electric Project has gone fully operation with the commissioning of Unit No.IV of the 600 MW (150 x 4) Hydro Power Project. Undeterred by the tunnel tragedy in 1991 and the World Bank's unexpected withdrawal from its financial commitment, Orissa Hydro Power Corporation took it over in 1996 and proceeded to complete the project against all odds. It had to access Rs.320 crore assistance from Power Finance Corporation (PFC) and raise funds from all possible internal sources to complete this project. The commissioning of Unit No. IV of Upper Indravati Hydro Electric Project has added one more feature to OHPC's cap. Envisaged in 1978 with an estimated investment of Rs.208.15 crore, the project cost has gone up during the past 23 years. Despite the cost escalating to Rs.1107 crores due to the delay in completion, the project enjoys the advantages of having less than Rs.2 crore investment per MW installation. Besides, Indravati provides one of the cheapest and most environment friendly power among the present generation of power projects i.e. 64.96 paise per KWH. Though project work started way back in 1978, it gained momentum only after OHPC took over. While the first two units of the hydro project were commissioned in 1999, the third unit and fourth went operational during the year 2000 and 2001.

Started with World Bank assistance, Upper Indravati Project is considered one of the largest multi-purpose projects in India. Situated in drought prone districts of Kalahandi and Nawarangpur in Orissa, the project also envisages transbasin diversion of water of river Indravati (Godavari basin) to river Hati (Mahanadi basin). The project provides irrigation to more than one lakh hectres of land.

On being fully commissioned, it now, is not only one of the largest power stations in Orissa but also in the entire region and will play a crucial role in bridging the projected deficit during peak hours in the 10th plan.

PROJECT COST

The basic estimates of costs for Upper Indravati Project have been prepared taking into account the p[revailing levels (1980) of cost of construction , material, equipment, labour etc. In working out the rates for the various items of works , the accepted tender rates at Upper Kolab Project which is at present under construction nearby have also been considered. With provision for physical contingencies at 10% in the case of civil works and 5% in the case of electrical works , the likely estimated cost of the project has also been worked out. the basic and likely estimated cost of the project are as under:

Estimated cost (Rs.Millions)

	Basic (1980 Price level)	Including physical contingencies
Unit-I
Dam and Appurtanent works	1182.80	1282.30
Unit-III
Hydrtaulic &Electrical Works.
Civil (Hydraulic) work	610.30	660.50
Electrical Works	1064.90	1116.20
Total	2858.00	3059.00

It is proposed to apportion the cost of Unit-I (Dam & Appurtanent works) equally to Irrigation and power.

On this basis , the estimated cost of Upper Indravati hydro electric project would be as under:

Estimated cost (Rs.Million)

	Basic (1980) Price Level	Including Physical Contingencies
Unit-I
Dam and Appurtanent Works	591.40	641.15
(chargeable to power)
unit-III
Hydraulic & electrical Works
Civil (Hydraulic) works	610.30	660.50
Electrical works	1064.90	1116.20
Total	2266.60	2417.85