First Post focused on Irrigation Water Potential.
About 650 TMC out of 2,163 TMC of average Recorded Water in last 5 years could potentially be utilized, that will leave about 1,568 TMC of Water that will continue go down passing all the dams and barrages into the upcoming Polavaram Dam.
Each of this Dam and Barrage will have Significant Hydro Power Potential by utilizing this surplus water that would any way have to be discharged down, instead of wasting the enormous hydro power potential in this Water can be utilized to generate Hydro power and use it to LIFT the Water to the High altitude terrains of Telangana that is far cheaper than utilizing Thermal Power.
- How Much is Hydro Power potential on Godavari in Telangana : Below Assumptions are used in the Computation of Hydro Power potential
- Hydro Power Potential in 1 TMC Water stored at 1 Meter Height at 90% Efficiency of Hydro Power Stations is : 0.068 MU / TMC-Meter Head
- Assumes as if all the Dams are Operational and 650 TMC water is utilized for irrigation so Only net available is computed, meaning minimum is taken not maximum.
- Average Water Head is assumed as 2/3 of the Full Storage Water Head,Only even though Godavari flows are so high its bound to be significantly higher
- Only 60% net discharge is accounted as available for hydro power plants as during floods significant water will still go over spill way as impounding capacities will not suffice and flood levels are too high every year during the peak time.
This is same or more than what Telangana (TSGENCO) Currently Generates from Srisailam Left Bank Power House and Nagarjuna Sagar Power House and all other Smaller Hydro Power in a Year.
Also, considering significant amount of this 650 TMC Water has to be LIFTED to high altitudes we can use this power to simultaneously to LIFT if we assume 90% is the Pumps Efficiency to LIFT… With 4048 MU Power Telangana will be able to LIFT about 350 TMC Water to about average 150 Meter altitude.
That will Significantly Change the face of Arid Telangana, under ground water table and life line.
This is important and CLEAN and GREEN Solution without depending on Capital Intensive and Polluting Thermal Power that depends nonrenewable fossil fuels.
This System can be summarized technically as Watered Powered Pumps. Essentially Energy in Larger Volume (Over 1000 TMC of Water Going Down about 90 Meters average head is used to LIFT 350 TMC of Water for Over 150 Meters Height.
Advantage of Hydro power
- A renewable source of energy – saves scarce fuel reserves.
- GREE Energy Non-polluting and hence environment friendly.
- Long life – The first hydro project completed in 1897 is still in operation at Darjeeling is still in operation.
- Cost of generation, operation and maintenance is lower than the other sources of energy.
- Ability to start and stop quickly and instantaneous load acceptance/rejection makes it suitable to meet peak demand and for enhancing system reliability and stability.
- Has higher efficiency (over 90%) compared to thermal (35%) and gas (around 50%).
- Cost of generation is free from inflationary effects after the initial installation.
- Storage based hydro schemes often provide attendant benefits of irrigation, flood control, drinking water supply, navigation, recreation, tourism etc.
- Being located in remote regions leads to development of interior backward areas (education, medical, road communication, telecommunication etc.)
Hydro Power in Water Stored in a Dam is the Cheapest Mega POWER Battery and Modern Reversible Pumps technology between Upper and Lower Reservoirs enable to use this Battery to effectively Shift Power from Low Demand Time to Peak Demand Time Every Day.
2. Pumped Storage Facilities as Power Batteries for Optimal Power Management
What all of us need to understand is the demand for power is not uniform during 24 Hrs time in a day, typical intra day load graphs in summer and winter look like below.
Following Figures Explain How Pumped Storage Hydro Power Stations Work.
How developed world like Europe are taking the precious places where water can be stored at high altitude using Pumped Storage Power houses to the next levels of integrated Power management extended to entire EU to manage their energy demands efficiently and with GREEN energy is shown in below video, possibilities with this are immense and hence must be explored carefully before finalizing the dam locations, heights on River Godavari.
For Providing 24 Hrs Supply 365 days There are Two Ways
- High Thermal Capacity
- Costly way is have the 8500 MW Capacity with
- Base Load Covered by continuous Power Supply Stations like Thermal ie About 6000 MW
- Have Hydro Power for 365 Days to use as Variable Peak Load Power Supply with capacity of 3500 MW
However neither we have such Hydro Capacity or Water Flows like Himalayan Rivers all through the Year.. Which forces us to have about 8000 MW Thermal Power.
- Optimal Thermal Capacity with Pumped Storage Hydro Power Stations
- Sri Sailam Left Bank Power House consists of 150 MW * 6 Hydro Power Stations that can Pump Water during Low Demand to Use the Surplus Power to Store Nagarjuna Sagar Water in Srisailam Dam and When Peak Load Time Generate hydro Power and release water back into Nagarjuna Sagar.
Unfortunately Krishna River is not a live river through out the year so we are not able to use this during Summer when the Load is highest.
Hence Having such facility in Godavari River Projects is Highly Recommended as meeting 24×365 Power supply can be achieved with Lower total Power Project investments.
This is adopted by all developed countries, India is lagging behing in this Power Optimization Process.
Recommend Telangana Govt must take International Experts help
to design these facilities as I see 3 Potential of Upper and Lower Reservoir combinations
- Kaleshwaram – Upper Kaleshwaram – Lower
- Ichampally – Upper Kanathanapally – Lower
- Edhira – Upper Parnashala – Lower
In summary Godavari River has Potential to Generate 4000 MU Hydro Power even after providing additional 650 TMC water for Irrigation for State of Telangana.
In addition By making Pumped Storage Approach, Optimization of Daily Load Variation is also Possible by effectively designing the Upper and Lower Reservoir Combination considering the Longer and Larger Water availability in Godavari as compared to Krishna
This has been made into a Crisp Post in Namaste Telangana in Telugu (Read Mega Unit as Million Unit)
Though not within Telangana, I see a Very good potential site on Indravati between Chattisgarh and Maharashtra that can be a Srisailam like Hydro Power Dam and ideally should be part of Larger Mission Godavari for South Central India.
Next Post will cover Godavari as In-land Water Way for Central India