REQUEST FOR PROPOSAL – Development and application of a current state network simulation model for Kenya on which to perform power system studies to improve system reliability and security

Closing date of RFP:            January 15, 2018

Implementing Agency:         United States Energy Association

Funding Agency:                  United States Agency for International Development

The United States Energy Association (USEA) is inviting prospective organizations through this request for proposal (RFP) to submit proposals for development and application of a current state network simulation model for Kenya on which to perform power system studies to improve system reliability and security for the Kenya Power and Lighting Company (KPLC).  This is an activity implemented by USEA under the United States Agency for International Development (USAID) Energy Utility Partnership Program (EUPP). 

Proposals are due by 17:00 hours EST of the closing date.  Please forward your proposal in soft copy with a read receipt to Ms. Sarah Blanford, Senior Program Coordinator, at [email protected].  

As this is a USAID-funded program, the RFP follows USAID Procurement Regulations and Laws.  All bidder details will be kept confidential.  
 

  1. INTRODUCTION

EUPP

Through a cooperative agreement with USAID, USEA implements the Energy Utilities Partnership Program (EUPP).  The purpose of the EUPP is to strengthen the capacity of utility executives and employees in USAID-assisted countries to effectively manage and operate power systems, run financially viable businesses, design off-grid power sources, and integrate different types of energy resources into their grids. 

Kenya Energy Sector Overview

The Government of Kenya has set forth its “Vision 2030,” a program to transform Kenya into a “newly industrializing, middle-income” country. Provision of adequate, reliable and cost-effective electricity is a key enabler for achieving the economic pillar of the Vision. Yet, Kenya has only 2,366 MW of installed generation capacity to serve its population of more than 43 million, which constrains economic growth. Kenya is believed to possess more than 7,000 MW of undeveloped geothermal energy resources in the Rift Valley. Wind and biomass energy are also significant potential sources for power generation. Power Africa is helping Kenya reduce reliance on expensive diesel-fueled generation and other high-cost fossil resources.

Kenya’s energy sector development plans are outlined in the current 2015-2035 Transmission and Generation Master Plan. Under the plan, the country is expected to increase its demand from the current 1,726 MW to 2,880 by 2020, and 6,833 by 2030 to meet the growing industrialization needs.  The Government of Kenya is focused on sustaining a stable investment climate for private-sector participation in energy, developing expanded transmission and distribution networks to deliver power to customers, maintaining a creditworthy off-taker, maintaining cost-reflective tariffs, and reducing inefficiency in the sector to support more affordable end-user tariffs.

  1. SUMMARY

The consultant will develop and apply a current state network simulation model for Kenya on which to perform power system studies to improve system reliability and security.  The work is anticipated to take approximately 18 months.  As a result of the technical assistance, Kenya Power (KPLC) will have the resources to improve the reliability of their grid and have greater use of their renewable energy generation through an accurate network topology and the skills to accurately perform real time operations, and short circuit and dynamic analysis. 

The program is expected to facilitate effective application of the PSS/E power system analysis tool and enhance capacity of power system operation and planning in KPLC and therefore improve quality, reliability and security of power supply. This will be achieved through:

  • Development and validation of the existing Kenya power system PSS/E load flow and dynamic analysis model to provide an accurate real-time operations analysis model. Additionally, the model updating and maintenance procedures will be developed to ensure maintenance of its integrity.
  • Capacity building in advanced application of the PSS/E software tool. Capacity building will be targeted at 12 engineers at various levels of proficiency in application of the software, who will receive hands-on training in advanced power flow, contingency, voltage stability and dynamic analysis. The engineers will also be trained in transmission planning, power system operation, integration of renewable energy and HVDC systems.
  • Detailed analysis of the existing and medium term (3-5 years) planned Kenya power system, identifying the key issues and recommending required improvements to meet requirements set out in the grid code. Technical reports will be compiled for implementation by KPLC /Ketraco.
  1. BACKGROUND

The Kenya Power and Lighting Company (KPLC) utilizes the PSS/E power system planning and analysis tool for transmission planning, network stability and grid operation studies. For this purpose, the company has maintained a fairly accurate load flow network PSS/E model and trained a few engineers in PSS/E software applications and transmission planning. The model, in its current form, has been successfully used in planning studies that do not require high-level detailed analysis. However, for accurate real time operational, short circuit and dynamic analysis, KPLC requires a validated real-time operational model whose fidelity to the actual network topology (steel in the ground) has been verified. 

The results of various power system simulation analyses performed by KPLC using the current operational model are therefore not as accurate as they would be were they performed on a fully verified and validated model of the current network state.   Accordingly, KPLC experiences some operational problems that could be more easily identified and resolved with an accurate operational model of the current network topology.

  1. STATEMENT OF WORK

The consultant will assist the United States Energy Association to develop an operational network simulation model of the Kenya power system (KPS) using the PSS/E software platform.  Upon completion of the operational model, the model will be utilized to carry out power system planning and operational studies including analysis of requests for connection/integration to the high-voltage network of selected new power generation plant, renewable energy projects and other power system equipment.  The trainer will conduct advanced training of KPLC engineers in PSS/E applications and transmission planning, and interconnected grid operations. 

The proposed model will be developed for the current state by updating and validating the current model used by KPLC, meaning it will represent the network in its current topology as a complement to the medium-term network topology planning models developed under an initial planning. In preparing the model, KPLC and KETRACO will provide detailed network, equipment and load data to be used for verification of the PSS/E model elements.  The operational model will be developed using training to further improve the capacity of KPLC and KETRACO engineers to use the PSS/E planning software. 

Shortly after initiation of the project, the consultant will conduct an on-site project inception and begin the training program.   As part of the proposal, the consultant should propose a combination of formal trainings and/or workshops, depending on what is deemed most appropriate for this capacity building.  In addition to PSS/E software training, the consultant will define key data and formats for the data to be collected by KPLC and KETRACO.  With guidance from the consultant, as needed, KPLC and KETRACO will collect the data over a period of three months following project inception.  The consultant will update the KPLC PSS/E model with the collected data and then validate it against real-time operation by comparison of its outputs with monitored outputs of the operation of the Kenya power system recorded at the national control center.  The result will be a fully accurate and verified representation of the current network topology of the Kenya power system.  The model will be suitable for daily operational use and power system analysis, i.e. load flow studies and contingency analysis, short circuit fault levels new generation connection requests, renewable energy integration studies, transient stability and dynamic analysis, etc.  The consultant will design a method or standard operating procedure for maintaining and updating the operational model to ensure it is sustainable.

During the 2nd quarter, the consultant will conduct a training to further enhance KPLC modelling and analytical capacity to perform advanced contingency analyses considering multi-level contingency analyses, tripping simulations and corrective actions, voltage stability and reactive power planning.

Following this, KPLC and KETRACO will prepare realistic scenarios for mid-term horizon target year (3-5 years) by utilizing the previously developed model for the current state and modeling new transmission assets and generation projects from its network development plans.  Using the newly developed operational model, and with support from the consultant, the KPLC/KETRACO team will conduct detailed load flow and contingency analysis with emphasis on evacuation of the proposed new generation connections and network security.  This will be covered during a 5-day capacity building and network analysis training during the 3rd quarter.   The analysis will identify power system constraints to full evacuation of the electricity produced by the generators being examined and assess their impact on grid stability.  It will provide a set of recommendations for investments required to alleviate network congestion and bottlenecks, and other power system constraints that may compromise network reliability.

During the rest of the third quarter KPLC/KETRACO will collect sequence and dynamic power system data (in formats provided by the consultant) and update the existing short circuit and dynamic analysis models.  The consultant will then conduct a 5-day capacity building training to enhance KPLC/KETRACO short circuit, dynamic simulation, and network stability analysis during the 4th quarter. The training will include theoretical aspects of power system dynamics, estimation methods for unavailable dynamic data and validation of dynamic responses.  The consultant will prepare a KPLC 2020 dynamic model and short circuit and dynamic studies to assess network stability. The analysis will identify and recommend further network requirements to ensure medium-term network equipment adequacy and dynamic stability.  The consultant will detail this in a medium term KPLC network short circuit and dynamic analysis report. 

During the 5th quarter the consultant will conduct a 5-day capacity building training in modeling, simulation and analysis of intermittent renewable energy systems (wind and solar) and HVDC systems in PSS/E software. This will include theoretical aspects of integrating intermittent renewables into the power system in terms of grid stability (voltage, frequency and dynamic stability) and detailed stability analysis in PSS/E. Based on the analysis, the consultant will assist KPLC to identify practical levels of penetration of intermittent renewable energy in the current and medium term (2020) KPLC network.

The consultant will produce a report and recommendations on optimal renewable energy penetration for the current and 2020 system and required improvements or additional network equipment to improve grid stability to facilitate uptake of the contracted intermittent energy as deliverable.  This aspect of capacity building is complementary to the renewable integration study (RIS) under the Grid Management Support initiative by Nexant consultants that covered the operational (dispatch) aspects of wind energy integration.

The following is an illustrative scope of work leading to the development of the operational load flow, short circuit and dynamic KPLC PSS/E model and its use in power system studies and analyzing new generation project(s), including renewable energy projects and HVDC systems.

  1. SCOPE OF WORK

The work is estimated to take six quarters (approximately 18 months).

With the goal of building expertise at KPLC and KETRACO through extensive hands on experience, the Scope of Work assumes the following:

 

Phase 1

  • Starting with the currently used KPLC model of the Kenyan network for 2020 and the planning model conducted in coordination of five regional utilities, prepare draft load flow operational models of the existing state of the network based on data on network element parameters provided by KPLC/KETRACO.  The model should be developed in sufficient detail such that it may be used for future studies, including short-circuit, relay protection coordination, as well as for the development of dynamic models. 
  • Conduct a 5-day project inception and PSS/E applications training (“Training 1”) during the first quarter, including all necessary theoretical and practical elements, to prepare KPLC/KETRACO to develop/improve its national load flow models for the existing network topology. The consultant will define key data and formats for the data to be collected by KPLC and KETRACO.
  • The required data will be collected over a period of three months following project inception during 1st quarter in readiness for the 2nd capacity building training.  The models will be constructed to represent three characteristic regimes (shoulder (mid-morning), peak and off-peak) and three hydrology scenarios for each regime (wet, average and dry hydrology). The existing KPLC/KETRACO load flow model and the model from the regional model will be used as the basis for development of the 2017 model by incorporating newly collected and available system information (e.g. technical parameters of power lines, transformers, number of busbars and substation single line diagrams).
  • Prepare the method for future model verification/validation based on the real system data (snapshots).
  • Prepare the operational model and training report, comprising the developed models critical overview, recommendation for future steps, training overview and conclusions about the overall productiveness of the training.
  • During the 2nd quarter, the consultant will conduct a three-day training (“Training 2”) to further enhance KPLC modelling and analytical capacity to perform advanced contingency analyses considering multi-level contingency analyses, tripping simulations and corrective actions, voltage stability and reactive power planning.  During the same visit, the consultant will provide a presentation/update to KPLC and KETRACO.

 

Phase 2, Task 1

  • As necessary, KPLC will collect the operational parameters of network elements installed on the network, with guidance from the consultant if needed
  • Using the known parameters and parameters collected in the field, refine the operational load flow model (Current Model) in terms of equipment rating, shunt compensator statuses, etc. to be ready for system defense plan analyses
    • Conduct a second 5-day training (“Training 3”) in the second quarter to further enhance KPLC modelling and analytical capacity:
    • To perform advanced contingency analyses considering multi-level contingency analyses, tripping simulations and corrective actions
    • To perform inertia/governor load flow calculation
    • To perform voltage stability analysis (PV, QV analysis)
    • For reactive power planning using PSS/E
  • Develop report on approach, accomplishments and recommendations. Report shall contain all input and output data in useful format, description of the regimes modelled, analysis and conclusions.
  • Collect data and establish data and information plans for Task 2 - Development of prospective PSS/E LF model (2020 and 2025, based on the schedule of major projects) and technical analysis

Phase 2, Task 2

  • Prepare realistic scenarios for mid-term horizon target year (3-5 years) by utilizing the previously developed model for the current state and implementing new transmission assets,  generation facilities and regional interconnections that are under construction and very close to commissioning (additional elements should be included in the model only if they can be considered as fully reliable and upon approval of KPLC/KETRACO)
  • Review the current KPLC/KETRACO transmission development plan for mid-term horizon target year from the perspective of network upgrades to 400 kV voltage level that are necessary to evacuate power from the new generator(s) requesting connection to the network
  • Conduct a 5-day capacity building and network planning and analysis training (“Training 4”) in the 3rd quarter to perform detailed load flow and security (N-1) analyses focusing on possibilities to evacuate power from the new generator(s) and committed regional wheeling transactions considering KPLC/KETRACO reliability criteria
  • Based on the previous bullet analyses, the consultant shall perform technical evaluation of KPLC/KETRACO transmission network adequacy and give observations and recommendations related to possible alternative solutions that should be considered in order to prevent possible network congestions
  • Develop Report on Study, Findings and Recommendations
  • Make a presentation to the main stakeholders (to be combined with “Training 4”)

Phase 3, Task 1: Update and validate the existing short circuit analysis and dynamic models and develop 2020 dynamic model

  • KPLC/KETRACO to collect available sequence and dynamic power system data 
  • Conduct a one-day technical meeting for data input/collection and method approval
  • Conduct a 5-day capacity building training (“Training 5”) to enhance KPLC/KETRACO short circuit analysis and dynamic simulation and analysis during the 4th quarter. The training will include theoretical aspects of power system dynamics, estimation methods for unavailable dynamic data, validation of dynamic responses etc.
  • Develop 2020 dynamic model
  • Transient stability and small signal stability analysis of the existing and projected 2020 system including the expected regional interconnections, committed wheeling transactions and committed generation projects additions
  • Dynamic analysis report and recommendations for improvements to maintain/ improve power system security  

 

Phase 3, Task 2: Kenya power studies for integration of renewable energy

  • The company has planned several medium to large-scale grid solar and wind energy projects that are bound to have significant operational and grid stability impact. The consultant is to conduct capacity building in power system analysis for integration of intermittent renewable energy including:
  • Conduct a 5-day capacity building training (“Training 6”) in modelling, simulation and analysis of intermittent renewable energy systems and HVDC systems in PSS/E software during the 5th quarter
  • Theoretical aspects of modelling and simulation of solar and wind farms in PSS/E for load flow, short circuit, flicker and dynamic studies
  • Estimation of optimal level of penetration of integrated renewables in the power system
  • Impact of embedded generation on power system operation
  • Conduct a 3-day training (“Training 7”) and presentation/report and recommendations on optimal renewable energy penetration for the current system and required improvements/additional network equipment to improve grid stability / facilitate uptake of more intermittent energy.

 

 

Other tasks:

  • The consultant will conduct a pre and post assessment of KPLC’s knowledge in the subject matter.  Drafts of each assessment will be provided to USEA for feedback before finalization.
  • The consultant will prepare a closing “results” report providing a summary of the methods, and specific and general overview of the results of the technical assistance for the Kenya utility and the Kenyan electric grid.

USEA will be responsible for all logistical arrangements for the participants and consultants.  This includes arrangements and cost for the following related to trainings:

  • Per diem for up to 2 consultants in Nairobi, Kenya, to include all travel and training days and maximum of 1 full day of rest prior to start of activity
  • Economy-class roundtrip international flights for up to 2 consultants to Nairobi, Kenya
  • Meeting space and AV
  • Printing/photocopying of handout materials

 

  1. SCHEDULE

 

The capacity building and modeling is expected to begin in February/March 2018, and will take approximately 18 months to complete.

 

  1. Deliverables

 

The following deliverables are anticipated:

Phase 1

  1. Draft load flow operational models of the existing state
  2. Draft agenda for “Training 1” 5-day project inception and PSS/E applications training program
  3. Final agenda for “Training 1” 5-day project inception and PSS/E applications training program, incorporating USEA’s feedback
  4. Summary of key data and formats for data to be collected by KPLC and KETRACO
  5. Design of method for future model verification/validation based on the real system data (snapshots)
  6. Operational model and training report
  7. Draft agenda for “Training 2” 3-day training to further enhance KPLC modelling and analytical capacity to perform advanced contingency analyses
  8. Final agenda for “Training 2”  3-day training to further enhance KPLC modelling and analytical capacity to perform advanced contingency analyses, incorporating USEA’s feedback

 

Phase 2, Task 1

  1. Refined operational load flow model (current model) to be ready for system defense plan analyses
  2. Draft agenda for “Training 3” 5-day training to further enhance KPLC modelling and analytical capacity
  3. Draft agenda for “Training 3”  5-day training to further enhance KPLC modelling and analytical capacity, incorporating USEA’s feedback
  4. Report on approach, accomplishments and recommendations
  5. Data and information plans for Task 2 - Development of prospective PSS/E LF model and technical analysis

 

Phase 2, Task 2

  1. Realistic scenarios for mid-term horizon target year (3-5 years)
  2. Draft agenda for “Training 4” 5-day capacity building and network planning and analysis training
  3. Final agenda for “Training 4”  5-day capacity building and network planning and analysis training, incorporating USEA’s feedback
  4. Report on Study, Findings and Recommendations
  5. Draft presentation to the main stakeholders
  6. Final presentation to the main stakeholders, incorporating USEA’s feedback

Phase 3, Task 1

  1. Draft agenda for one-day technical meeting for data input/collection and method approval
  2. Final agenda for one-day technical meeting for data input/collection and method approval, incorporating USEA’s feedback
  3. Draft agenda for “Training 5”  5-day capacity building training to enhance KPLC/KETRACO short circuit analysis and dynamic simulation and analysis
  4. Final agenda for “Training 5” 5-day capacity building training to enhance KPLC/KETRACO short circuit analysis and dynamic simulation and analysis, incorporating USEA’s feedback
  5. 2020 dynamic model
  6. Transient stability and small signal stability analysis of the existing and projected 2020 system
  7. Dynamic analysis report and recommendations for improvements to maintain/ improve power system security  

Phase 3, Task 2

  1. Draft agenda for “Training 6”  5-day capacity building training in modelling, simulation and analysis of intermittent renewable energy systems and HVDC systems
  2. Final agenda for “Training 6” 5-day capacity building training in modelling, simulation and analysis of intermittent renewable energy systems and HVDC systems, incorporating USEA’s feedback
  3. Draft agenda for “Training 7” 3-day training on optimal renewable energy penetration for the current system and required improvements/additional network equipment to improve grid stability / facilitate uptake of more intermittent energy
  4. Final agenda for “Training 7” 3-day training on optimal renewable energy penetration for the current system and required improvements/additional network equipment to improve grid stability / facilitate uptake of more intermittent energy, incorporating USEA’s feedback
  5. Presentation/report for KPLC/KETRACO, USAID and USEA including recommendations on optimal renewable energy penetration for the current system and required improvements/additional network equipment to improve grid stability / facilitate uptake of more intermittent energy

Other Deliverables

  1. Drafts and final copies of all presentations (e.g. PowerPoint) and other “handouts” for trainings
  2. Drafts and final copies of pre and post assessments
  3. The consultant will prepare a final report for USEA providing the methods used, specific and general overview of the results of the technical assistance for the Kenya utility and the Kenyan electric grid. The consultant will prepare a draft of the report for review by USEA.

 

  1. Reporting

The consultant will report to USEA, and keep USAID/Kenya informed on matters related to the modeling.

 

  1. PROPOSAL CONTENT

The proposal must contain the following:

  1. A cover letter to the proposal
  2. A technical proposal, including:
  • Demonstration of an understanding of the issues to be addressed under the proposed scope of work specified above by providing a summarized technical approach for each of the tasks listed (Maximum 2 pages).
  • Proposed project schedule to perform the tasks under this project highlighting any deviations from the proposed statement and scope of work specified above.  Proposed schedule should be broken down by quarters. The schedule should include objectives for each phase’s task, responsibilities and assignment of those responsibilities (e.g. consultant versus KPLC/KETRACO), deliverables for each task or activity (e.g. reports, data input summary, draft manuals, policies, etc.), and proposed due dates.  
  1. A financial proposal, including:
  • Detailed justification (i.e. line item budget)
  • Labor, other direct costs, indirect costs, and level of effort for each employee proposed for this project
  • Labor, other direct costs, indirect costs broken down by task
  1. Bio sketches of personnel, including at least 1 – 2 subject matter experts including team leader that will be dedicated to the project
  2. Summary of relevant experience of each proposed team member for (not beyond) the past 10 years.  Relevant experience should be listed chronologically (starting with the most recent).
  3. Completed USAID Consultant Employee Biographical Data Sheet forms for each employee proposed for this project (https://www.usaid.gov/forms/aid-1420-17)
  4. Summary of the work to be performed by each employee proposed for this project
  5. Consultant’s Data Universal Numbering System (D-U-N-S) number and proof of current registration with System for Award Management

 

  1. Evaluation Criteria

Selection of an offer for contract award will be based on an evaluation of proposals against technical merit and budget justification. Proposals shall first be evaluated from a technical standpoint based on the technical proposal without regard to proposed budget justification.  For those proposals determined to be technically acceptable, budget justification will be evaluated.

15%:      Experience with similar projects

20%:      Subject matter expertise

25%:      Technical Approach

40%:      Cost

  1. proposal Timeframe 

E-mail Notification of Intent to Bid

The required e-mail notification of intent to bid of should be e-mailed to [email protected] with a read receipt. Please include “EUPP Kenya RFP – Current State Network Simulation Model” in the subject line and provide your name or name of organization and contact email address as well as a short note describing your intent to respond to this solicitation in the body of the e-mail.

All questions related to this RFP should be submitted via email to Sarah Blanford at [email protected] no later than December 15, 2017.  All questions and answers will be provided to all prospective bidders.

Interested parties are requested to submit final via email with a read receipt to Sarah Blanford at [email protected]

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