HYDRO POWER PROJECTS

Sondu/Miriu Hydropower Project, Nyanza Province, KENYA

The Sondu/Miriu Hydropower Project (SMHPP) is located close to the shore of Lake Victoria, approximately 50 km. from the city of Kisumu and around 300 km. North West of Nairobi on the Nyakach Escarpment.

SMHPP (substantially completed at end of 2007) has a maximum output of 60 megawatts from two units and an average annual energy production of 330GWh.  A substantial proportion of the SMHPP has been funded by two loans from the Japan Bank for International Cooperation (JBIC).

CLIENT:

Nippon Koei Co. Ltd. for Kenya Electricity Generating Company Ltd. (KenGen)

PROJECT SCOPE:

Operational Features of the Project

(a)	Catchment area	3,345 km^2
	Annual mean runoff	41.0 m^3/sec
(b)	Intake water level (FSL)	EL. 1,402.5 m
	Tailwater level	EL. 1,205.6 m
	Gross head	196.9 m
	Net head	178.6 m
	Maximum output	60MW (30 MW x 2 units)
	Average energy production	330.6 GWh per year
Intake facility
(a)	Intake weir	Gated concrete weir of gravity type
	Weir sill	EL. 1,392.0 m
	Dimensions	70m in width and 18m in height
	Intake weir gate	Three 15m wide and 10.6 high fixed wheel.
(b)	Sand flushing bay	10m wide open channel type.
	Sand flushing gate	One 10m wide and 13.5m high fixed wheel.
(c)	Inlet	Horizontal side intake type having 26m in width
	Inlet gate	Four 5.0m wide and 7.6m high fixed wheel gates
	Trashrack	Four 5.0m wide and 9.0 high inclined trashracks.
(d)	Settling basin	Two 12.0m wide and 44m long open channels
	Sand drain gate and valve	One 1.5m wide and 1.5m high sand drain gate and two 1.5m wide and 1.5m high sand drain valves.
(e)	Intake	Vertical type.
	Gate	One 5.0m wide and 7.6m long
	Trashrack	Two 5.0m wide and 9.0m high inclined trashracks.
Waterway
(a)	Headrace tunnel	Circular reinforced concrete lined 4.2m diameter
	Length	6,194m
(b)	Surge tank	Restricted orifice type, 14.0m diameter and 36.8m high
(c)	Penstock	Surface steel pipe
	Length	1,214m
Power station
(a)	Powerhouse	Surface reinforced concrete building 24.5m by 40.0m by 32.2m in height.
(b)	Switchyard	Outdoor type 59.0m by 122.5m
(c)	Tailrace	Open channel 28.0m wide by 46.8m long
	Outlet channel	4,715m long lined open channel trapezoidal shape
Generating equipment
	Turbine	Two 31,200kW vertical shaft Francis units
	Generator	Two 33,700kVA output capacity vertical units
	Main transformer	Two 33,700kVA capacity units of three-phase, outdoor, forced aircooled and 11 kV to 132kV voltage
	Switchgear	132kV outdoor, and 11.0kV indoor switchgear.
Transmission line		132kV single circuit 49km long to Kisumu Substation.

PERIOD OF DCI SERVICES:

2004 to 2008

DCI SCOPE:

· Advising of contractual effect and significance.

· Suggesting suitable solutions and methods of action and response.

• Identifying and analysing potential problems, disputes and delays and trying to solve these before claims develop (see above input on Progress Monitoring).

• Reviewing contractual claims e.g. for delays, disruption or for extension of time and associated costs.

• Advising on status/legal basis of claims, recommending and then implementing appropriate measures.

• Preparing contractual and commercial reports.

• Supporting in negotiation and agreement.
• Assistance in arranging for arbitration or litigation services.
• Project coordination, ensuring that the project team members take consistent and timely action.

Project Completion activities including the management, control and coordination of:

• Punchlisting including defining and managing inputs of the Engineer, Contractor and Employer and regular monitoring and reporting.

• Coordination and control of as-built drawings, O & M Manuals, spare parts, tools, etc.

• Review of staff training arrangements.

• Review of final document arrangements.

• Preparation of final reports.

• Preparation of completion certificates, defects liability certificates, warranties, bonds and insurances.  

• Preparation of final payment certificates, releases of retention etc.

HYDRO POWER PROJECTS

Sang'oro Hydro Power Plant, Nyanza Province, KENYA

The Sang’oro Hydropower Project is located close to Lake Victoria, approximately 50km. from the city of Kisumu and around 300 km. North West of Nairobi on the Nyakach Escarpment.

The Project follows substantial completion of the Sondu/Miriu Hydropower Project (SMHPP) and utilises the discharge water from the outlet channel of the now completed

SMHPP to produce a further 20 Megawatts of power before returning the water to the original river. The Sang’oro Hydropower Project is funded by loans from the Japan International Cooperation Agency (JICA) (formerly the Japan Bank for International Cooperation - JBIC).

The Project was initially divided into two separate contract packages with combined prequalification and tendering through international competition for each package.

The successful tenderer for both contract packages is Sinohydro Corporation of the Peoples Republic of China. Construction work commenced on the project in November 2008.

CLIENT:

Nippon Koei Co. Ltd. for Kenya Electricity Generating Company Ltd. (KenGen)

PROJECT SCOPE:

LOT I – CIVIL WORKS

• Waterway

• Power Station including tailrace and switchyard

• Access Roads

• Extension of Base Camp for Employer

LOT 2 – POWER PLANT EQUIPMENT

Part I: Generating Equipment

Two 10,900kW vertical shaft Francis type turbine, governing equipment, throughflow type inlet valvesand accessories. Two 12,500kVA alternating-current generators, excitation equipment, neutral earthing equipment, fire protection equipment, and accessories. Two 2,500kVA main transformers, two (2) 315kVA station-service transformers, and one (1) 315kVA local-service transformer. 132kV, 33kV, 11kV and low voltage switchgear Overhead travelling crane, storage batteries, electrical testing instruments and paging equipment in powerhouse. Electrical conductors, insulators and steel structures. Optical fibre communication equipment, teleprotection signalling equipment and telecontrol equipment.

PART II:        HYDROMECHANICAL WORKS

• Intake Gate

• Intake fixed trashracks

• Intake Raking Equipment

• Exposed type steel penstock with a bifurcation (130m).

• Vertical lift slide gates with a monorail hoist, guide frames and dogging devices.

• Spare Parts and Maintenance Equipment and Tools

PART III:      TRANSMISSION LINE WORKS

• 132 kV transmission line (5 km).

• Galvanised steel towers, ACSR conductors and OPGW and foundation works

• Switchyard control house

PERIOD OF SERVICES:

• 2007 to 2008 – Design, Tender and Contract Award Stage Services.
• 2008 to 2011 (Planned) – Project Implementation Services.

DCI SCOPE:

Design, Tender and Contract Award stage Quantity Surveying/Contract Engineering Services comprising:

(a)	Review and revision of PQ documents for international tendering, with all necessary schedules and pro-formae.
(b)	Preparation of PQ guidelines, defining the procedures for reviewing, scoring and ranking prospective tenderers with detailed evaluation forms.
(c)	Review and revision of tender documents.
(d)	Assistance with tendering Process.
(e)	Tender evaluation, review, reporting and client liaison.
(f)	Contract negotiation assistance and support.
(g)	Assistance with preparation of Contract Documents.
General Construction Stage Services including:-
(a)	General commercial and contractual support to the Project Manager and Project Team.
(b)	Preparing particular Project Procedures, covering office and project management, contractual/commercial management and project administration. (DCI Standard Procedures have been adopted as a basis for these Project Procedures)
General Management of Project Commercial and Financial Affairs with assistance of local staff, including:-
(a)	Providing monthly measurement of works in progress.
(b)	Preparation and agreement of monthly payment valuations and issue of interim payment certificates.
(c)	Preparation of coordinated works and overall project cost forecasts and cost reports and estimates.
(d)	Identifying, issuing, measurement and pricing of Engineer's Instructions/ Variation Orders and agreement of same with the Contractor.
(e)	Re-measuring the Works and preparation of the final account, including pricing and agreeing final account totals with Contractor.
Project Progress Monitoring and Support Services, including:-
(a)	Preparation of physical and financial progress reports for each Works Package.
(b)	Preparation of physical and financial progress reports for the entire Project.
(c)	Defining responsibilities, managing and coordinating records of work inputs from Contractor and respective engineers and identifying and analysing potential problem areas.
(d)	Project team coordination, ensuring that the project team members understand responsibilities and take consistent and timely action.
Contract Control Services, (working very closely with the project manager and team) including :-
(a)	Preparing and or reviewing all outgoing commercial, administrative and commercial correspondence.
(b)	Reviewing all incoming contractual correspondence.
(c)	Advising of contractual effect and significance.
(d)	Suggesting suitable solutions and methods of action and response.
(e)	Identifying and analysing potential problems, disputes and delays and trying to solve these before claims develop (see above input on Progress Monitoring).
(f)	Reviewing contractual claims e.g. for delays, disruption or for extension of time and associated costs.
(g)	Advising on status/legal basis of claims, recommending and then implementing appropriate measures.
(h)	Preparing contractual and commercial reports.
(i)	Supporting in negotiation and agreement.
(j)	Assistance in arranging for arbitration or litigation services.
(k)	Project coordination, ensuring that the project team members take consistent and timely action.
Project Completion activities including the management, control and coordination of:-
(a)	Punchlisting including defining and managing inputs of the Engineer, Contractor and Employer and regular monitoring and reporting.
(b)	Coordination and control of as-built drawings, O & M Manuals, spare parts, tools, etc.
(c)	Review of staff training arrangements.
(d)	Review of final document arrangements.
(e)	Preparation of final reports.
(f)	Preparation of completion certificates, defects liability certificates, warranties, bonds and insurances.
(g)	Preparation of final payment certificates, releases of retention etc.

INFRASTRUCTURE DEVELOPMENT PROJECTS

Rural Water Supply Project, Sondu Miriu, KENYA

The Sondu/Miriu Hydropower Project is a run of river hydropower project which diverts water from the Sondu River by means of a gated diversion weir to two power stations in cascade and returns the water to the river some 6 kms downstream of the intake.

Although the project does not utilise the full flow of the river, in the dry seasons the flow in the river downstream of the intake can be depleted. As the river is the primary source of water for the population in this area, the client for the project, Kenya Electricity Generating Company (KenGen), decided as part of their corporate responsibility to implement two rural water supply projects to the right and left banks of the Sondu River to supply clean and safe water within the potentially affected area of the river.

KenGen’s consultant for the project, Messrs Nippon Koei Co., Ltd. of Japan, were directed to carry out a feasibility study, detailed design, tender and supervision of the implementation of the Project.

CLIENT:

Nippon Koei Co. Ltd. for Kenya Electricity Generating Company Ltd. (KenGen)

PROJECT SCOPE:

(1)

Local Study

Carry out a socio economic study of the area to establish population, water demand, preferred sources of water, method of distribution and sustainability of such a project. This exercise included:

(a)	Organising meetings (known locally as Barazas) with the communities to agree and establish methods of management and sustainability of any system.
(b)	Establishing water user associations to oversee the management and running of the scheme and that individual self help groups would be formed to manage each individual water outlet kiosk.
(c)	Ensure sustainability of the project by establishing a nominal charge for the water. The revenue to be used for running and maintenance costs with surplus being invested to allow future expansion of the schemes.

The above liaison continued throughout the design and implementation stages involving:

(a)	Liaising in the field between the design team and local communities to allow community comments and requirements to be incorporated in the design.
(b)	Involving the local communities with the implementation of the project and securing community contributions for implementation in the form of land donations for kiosks, water towers and wells.
(c)	Assisting with the drafting of constitutions for the water users associations and in the official registration of the association.
(d)	Arranging further consultations with the local community continued during implementation to assist in resolving disputes within the communities.

(2)

Preliminary and Detailed Design:

Execute the preliminary and detailed design, which involved hydrogeological survey of the area, executing a topographic survey of the area using aerial photography referenced to established survey beacons, design of optimal positions of towers and kiosks and routes from boreholes to towers and from towers to kiosks.

Procure Contractors for the Works via LCB.

(3)

Implementation

Supervise the implementation.

PERIOD OF SERVICES:

2007 to 2008

DCI SCOPE:

Quantity Surveying/Contract Engineering and Project Management Services including:

• Management of design process.
• Active involvement in community liaison.
• Preparation of tender documents, tender procedures, evaluation criteria and guidelines and management of the tender and award processes.
• Project management
• Commercial management assistance.
• Contract management and administration.
• Staff coordination and training
• Completion services

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