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karoot Hydro Power Plant
Transcript of karoot Hydro Power Plant
This hydro power plant is located on Jhelum river near karot village 74 kilometer upstream from mangla,maximum altitude of 530 m.a.s.l ,sparsely populated small village with negligible agriculture land ,hilly area and per facet for dam construction.
karoot Hydro Power Plant
(720 ~900) MW
Consultancy Services for Interconnection study of 720 ~ 900 MW Hydro Power Project
Changjiang survey,planning ,Design and research
Power Planners International
CSPDR( Changjiang survey,planning,Design and research Co.Ltd Hubie China)
A limited liability company of China
PPI(Power Planner International)
It has professional background,equipment and professionals it is registered with Pakistan Engineering council under registration# consult/1147
NTDC(National Transmission and Dispatch Company
Price of interconnection service in Pakistani rupees
Total Price = P1 + P2 = 3 million two hundred thousand
P1 = Two million (part 1)
P2 = One million and two hundred thousand (part 2)
CSPDR(party A) seeks services from PPI(party B) for nearest NTDC grid station and conducting interconnection studies.
PPI gives its services in response of CSPDR
for providing interconnection study including
1: load flow
2: Short circuit
3: Transient stability studies
1: Data collection from NTDC
2: Perform technical interconnection studies PART1 of contract
3: Final interconnection scheme for reliable dispersal of power from KHPP to the nearest NTDC grid station
4: Identify any reinforcement and/or equipment replacement required in system network as result of interconnection of KHPP with NTDC
5: Relay Protection and safety and stability device, dispatching automation system and system automation
6: The channel requires of communication system
7: Conclusions and recommendations for Part1 and Part2
Scope of Work
2: Perform technical/interconnection studies as Part1 of contract
a: Load flow studies
b: Short circuit analysis
c: Transient stability studies
3: Final interconnection scheme for reliable dispersal of power from KHHP to the nearest NTDC grid station
a: Voltage of outgoing lines connected with power system
b: Circuit number and distance(km) of outgoing lines from Karot hydro Power system
c: The requirement to main electrical connection of KHPP to connection
d: Power factor ,GD^2of generater
e: Tap range for KHPP step up transformer of KHPP
f: Single line drawing for KHPP approved by NTDC
5.1..1 Scope of relay protection design
5.1..2 Principle of relay Protection configuration
5.1..3 Technical requirements of relay protection
5.1..4 scheme of relay protection configuration
5.1.5 Relay protection and fault recorder information management system
5.1.6 Safety and stability control devices
5.1.7 Investment estimation
5.2 Dispatching automation
5.2.1 Dispatching relationship
5.2.1 Dispatching automation system server system current
1: Data collection and developing of interconnection alternatives
2: Load flow and contingency analysis
3: Short Circuit analysis
4: Transient stability studies
5: Conclusion and recommendation
6: Final report and Draft submission
Data collection and developing of interconnection alternatives
CSPDR(client) takes data from NTDC to also collect system data, load forecast as well as relevant generation and distribution expansion plans.
PPI takes data from it client(CSPDR) identify various alternatives for dispersal of power from KHPP in view of its capacity,location and surrounding system network.
Performance of plant as well as the system network shall be evaluated on the basis of NEPRA's grid code.
Load flow and contingency analysis
Load flow studies would be carried out to asses steady state performance of system with each interconnection alternative for KHPP
short circuit analysis
short circuit studies with the selected interconnection alternative would be carried out to compute single phase and three phase short circuit level of switch yard of KHPP and the system network in its surrounding in case of symmetrical and unsymmetrical fault condition.
It also help in proposing the interrupting capacities of the switchyard of KHPP.
Transient stability State
Selected interconnection of alternative would be carried out to evaluate the dynamic behavior of the KHPP system after being subjected to balanced (three phase) and unbalanced (single phase) faults.
It will be ensured that the plant and the system remain stable following severe fault and the disturbance in case of normal fault clearing (in 5 cycles) and fault clearing (in 9 cycles) during stuck breaker condition.
NEPRA GRID CODE
The Grid Code is an essential requirement of the regulation of electric network
supply and delivery system. In accordance with ‘Regulation of Generation,
Transmission and Distribution of Electric Power Act (XL of 1997)’, all existing and
future Users of the electric network supply and delivery system need a relevant
Licence from NEPRA; and register as Code Participants with NTDC as per the
provisions of Grid Code.
One of the NTDC Licence's requirements is that Users of
the NTDC’s system must comply with the provisions of Grid Code at all times.
Failure to do so may result in their licence being suspended or revoked.
The Grid Code sets out the guidelines, rules and procedures to be adopted by all
Code Users. The sub-codes of the Grid Code relate to technical and commercial
relationships between NTDC and its Users.
Main Objectives of the Grid Code are:
a) To achieve the Performance Standards (Transmission) to be
prescribed under the Act;
b) To facilitate the development, operation, and maintenance of an
efficient, co-ordinated, safe, reliable and economical system for the
transmission of electric power;
c) To facilitate competition in the provision of electric power; and
d) To cover all material technical aspects relating to Connection, the
Operation and Use of the NTDC's transmission system including the
operation of electric lines and electric plants connected to the NTDC's
transmission system in so far as relevant to the Operation and Use of
NTDC's transmission system.
Objective of Grid code
The purpose of Grid Code is to provide unambiguous guidelines, rules and procedures, which ensure that all Users of Grid Code understand and abide by the obligations and responsibilities placed upon them under this Grid Code. The Code covers day-to-day and long-term principles, standards, procedures and guidelines for
Planning, Operation, Dispatch, and Connection purposes for normal and abnormal
NTDC transmission system conditions.
Relay protection and safety and stability control devices, dispatching automation system and system communication study
Carry out relay protection and safety and stability system and communication coordination for the proposed scheme of integration of KHPP as per requirement of NTDC.
Prepare relay protection and safety and stability control device.Dispatching automation system and system communication scheme for the proposed scheme of interconnection of KHHP fullfilling NTDC requirements.
Conclusions and recommendation
On the basis of above analysis, the interconnection of above scheme for power dispersal of KHPP shall be proposed as Part-1 of contract.
The feasible interconnection alternative will include determination of the voltage level, the number and rating of step up transformer and the interconnection distribution lines required
for reliable dispersal of power from KHPP on the NTDC grid.
It also indicate the extensive required at nearby system network.
Conclusion and recommendation
On the basis of above analysis, the interconnection scheme for power dispersal of KHPP shall proposed as Part-1 of the contract.The feasible interconnection alternative would include determination of the voltage level, number and rating of step up transformer and the interconnection distribution lines required for reliable dispersal of power from KHPP to the grid station.
Review of proposal on raw site by a committee under the Secretary, Ministry of water and Power, comprising representative of PPIB, WAPDA, KESC, the Planning and development Division, the concerned Provincial/AJK PPC or SCA( for coal based projects in sindh.
Its takes 60 days
Posting of bank guarantee by sponsors @US$1000 per MW in favour of PPIB.
It takes 30 days
Issuance of the LOI by PPIB
It takes 30 days almost.
Submission of proposal on raw site by the sponsors
Initial time allowed to carry out feasibility study terms of the LOI
1/2 years almost to complete
Tariff negotiations between sponsors and power purchasers
Its takes 3 months
NEPRA 's approval of Tariff
It takes almost 6 months
Submission to PPIB of approved tariff
Submission of performance guarantee @US$5000/MW by sponsors in favour of PPIB it it tariff is approved
Issuance of the LOS by PPIB
It takes 1month
Objective of Power Policy
a) To provide sufficient capacity for power generation at least cost, and to avoid capacity shortfalls
b)To encourage and ensure exploitation of indigenous resources, which include renewable energy resources, human resources,participation of local engineering and manufacturing capabilities.
c)To ensure that all stakeholder are looked after in th process i.e a win to win situation for all
d)To attuned to safeguarding the environment.
National Electrical Power Regulatory Authority
NEPRA's role in power business is will be issuance of licenses for companies and to regulate their operation according to NEPRA rules and regulation and perspective companies will be required to comply with all NEPRA rules/procedures.
Private Power and Infrastructure board
The board governing PPIB, which includes representation of each of four province of Pakistan and AJK,will provide one window support to IPPs of above 50MW.
1-It will issue LOI and LOS
2-Prepare pre-qualification and Bids documents
3-Pre-qualify the sponsors
4- Evaluate the Bids of pre-qualified sponsors
5-Asset the sponsers/project companies in seeking necessary permissions/contents from various government agencies
6-Carry out negotiation on the IA
7-Asset the power purchaser
8-Execution and administration of PPA,FSA/GSA/CSA and WUL respectively
9-Issue and administrate the GOP guarantee backing up the power purchaser/fuel supplier/Provincial/AJK/Contractual obligation and follow up the implementation and monitering of projects.
Pre-qualification for specific projects.
PPIB will invite Sponsors for registration and for collection of pre-qualification documents through the press and all other channels normally prescribed by the Asian Development Bank and the world Bank.
It takes almost 2 months
Evaluation of pre-qualification documents and notification to pre-qualified bidders by PPIB
It also takes two months
Posting of Performance Guarantee by sponsors @US$ 5000 per MW in favour of PPIB
It will take almost one month
Submission of pre-qualification documents to PPIB
Time allowed for submission of bids to PPIB together with bid bond and evaluation fee in favour of PPIB.
PPIB's invitation for bids to pre-qualified bids and collection f bidding documents by pre-qualified bidders.
Evaluation of bids including tariff determination by NEPRA and notification for successful bidder by PPIB
Issuance f LOS by PPIB
It will takes one month
Three conditions of pre-qualification of bids
a) One of the Sponsor, who will be designated as the 'Main Sponsor' will have at least 20% stake in the equity and, together with other partners,will have direct and relevant experience /capability in the successful development or implementation or ownership or operation, of projects of similar magnitude.
b) Demonstrated capability for financing (equity and debt) or arranging finance on same magnitude.
c) The main sponsor should not own more than 25% of the generation capacity in Pakistan at the time of bidding.
Request for proposal
1) Type of proposal( Hydel,thermal,fuel oil,wind,renewable)
2) Net capacity(MW)
3) Reference annual plant factor(%)
4) Transmission arrangements including the point of delivery to the new power purchaser
5) Term of Power Purchaser Agreement
6) Specific allowances for scheduled maintenance
7) Agreements with local engineering companies
8) Evaluation criteria
Evaluation of bids
1) Bids will be opened in the prescribed date in front of respective bidders representative bidders who choose to attend the ceremony.
2) Detailed evaluation criteria will b given in RFP,evaluation of hydrel generation will be given on tariff calculated 12% discount rate over the term of the project.
3) The bid with lowest evaluated leveled tariff will be ranked No.1.
PPIB will issue them LOS.
Submission of proposal
A detailed proposal must be submitted to PPIB.
Negotiation on Tariff
PPIB will notify by Power Purchaser(WAPDA and KESC) on successful negotiation.Sponser will file file application with NEPRA for tariff approval.After NEPRA approval PPIB will issue LOS against delivery of performance of the value of US$5000 per MW in favor of PPIB.Valid upto three months.
a) Project name/identification
b) Project location
c) Proposed capacity and Plant factor
d) Basic outline of structures and plant
e) Summary programme indicating specific milestone and completion date of feasibility study
f) Previous history of project/proposal
Letter of interest
Sponsors of approved proposals will be issued their LOIs by PPIB, in favor of PPIB in bank guarantee of the value US$1000 per MW valid for a period not less than six months in excess of the validity of of LOI.Initaial validity is between one or two year depend on size of project.Panel of experts(POE) is satisfied that the Sponsors's progress during conduct of feasibility study is satisfactory and the feasibility study is likely to completed shortly.
LOI will require the sponsors to carry out a complete feasibility study to be monitored by
POE appointed by PPIB.
When the feasibility study is approved the Sponsors will negotiate power purchaser to for tariff within three months.
Participation in bidding
If the negotiations between power purchaser and sponsors are not successful than this proposal is will be processed as solicited proposal.
PPIB will appoint an independent auditor,and the successful bidder will reimburse the reasonable and independent auditor cost of feasibility study to the initial sponsor before obtaining the LOS.
Bid bond letter
A bid bond of US$1000 per MW will be submitted by each bidder at the time of submission of bids o rejection of bid it will be returned.
Successfull bidder have to submit US$5000 to PPIB as a Performance Guarantee valid for three months in the excess validity of LOS.After submission of PG bid bond will be returned.
PPA=Power Purchase Agreement
FSA=Fuel Supply Agreement
GSA=Gas Supply Agreement
CSA=Coal Supply Agreement
WUL=Water Use License
These agreements are term as private/public partnership power to eliminate need for protected negotiation.
term as "Security Packages".
Currency of Tariff
Currency of Tariff is in Pakistan Rupees
Capacity and Energy Components
Bidder quote their tariff into two parts
1) EPP(Energy purchase price)
2) CPP (Capacity purchase price)
CPP is expressed in Rs/kW/month
EPP is expressed in Rs/kWh
EPP is 40% to 30% in case of hydral project
CPP is 60% t0 66% in case hydral project
Interest of Sponsor = EPP + CPP(non- debted)
Water use charges
EPP include water use charge
Exchange rate variation
Bidders may include separate component in the CPP and EPP which subject to adjustment only for variation in the exchange rate between Pakistan Rupees and US Dollar.
Reference rate for foreign exchange shall be the National Bank of Pakistan
Adjustment for exchange rate fluctuation will be affected quarterly.
Bidders may include components in the EPP and CPP which are escalable for Pakistan Rupees inflation,such Pakistan Rupees inflation escalation will be affected from bid submission date by the Pakistan wholesale price index(WPI) for 'manufacturing' as notified by GOP's Federal Bureau of statistics (FBS).
RFP will specify the actual date for the reference.
1-Initial steps during the transition period will include active solicitation of offer to build new generating plants.
2-Selling power under contracts initially to public sector utilities that can latter be assigned to privatize distribution companies.
NTDC or legal assigns/successor of public sector utility.
EPC Cost Escalation
IPPs are expected to apply for Tariff to NEPRA on the basis of reasonable assurance of fixed price EPC
Dispatch plants with the most economical dispatch criteria on the basis of
1-Lowest ECC(Energy cost component)
2-Transmission line losses
Because of low variable cost, hydral plants are likely to be dispatched with highest priority.
Feasibility studies contains some how following criteria
1-Hydrological characteristics of site
3-Optimum net capacity
4-Estimated annual plant factor
5-Monthly profile of energy potential
6-Transmission line requirements
7-Identification of power delivery point
Water Use Agreement
Government of AJ & k
Karot Power Company
Water Use Agreement Privileged & Confidential
THE [ ] AJ&K/PROVINCE for and on behalf of THE Government of the AJ&K/PROVINCE
[Karot Power Company]
WATER USE LICENSE
- RELATING TO -
THE USE OF WATER FROM THE _______ RIVER/CANAL FOR A HYDRO-ELECTRIC POWER GENERATION COMPLEX AT __________, [NAME OF GO AJ&K/PROVINCE], PAKISTAN ___________________________________________________________________________
[ISLAMABAD], ISLAMIC REPUBLIC OF PAKISTAN
ON ___ ___________________ 200_
COUNSEL FOR [NAME OF PROVINCE]: COUNSEL FOR THE COMPANY: