TANZANIA ELECTRIC SUPPLY COMPANY LIMITED
PROVISION OF CONSULTANCY SERVICES FOR SEDIMENT MAPPING
AT MTERA AND KIHANSI RESERVOIRS
Expression of Interest
Background
Tanzania Electric Supply Company Limited (TANESCO)
intends to carry out a study to establish the extent of siltation/sedimentation
in both Mtera reservoir and Lower Kihansi pond.
Lower Kihansi hydro power Plant was commissioned in late 1999 on the
Kihansi River Falls, a tributary of the Kilombero River. The hydro plant,
located in the Eastern arc mountain forests of Udzungwa, utilises a head of
850m with an installed capacity of 180 MW. It has a pond with a surface area of
0.26 km2 and a live capacity of 1 Mm3.
Mtera hydropower plant has an installed capacity of 80
MW and a reservoir with a surface area of 605km2 and a live storage capacity of
3200 Mm3. The reservoir was constructed during phase II of the Great Ruaha
Power Project between 1977 and 1981, the purpose being to supply the 200MW
Kidatu Hydro power plant with sufficient volume of water during dry season and
also to give an over year storage capacity to cover for extremely dry years or
series of dry years.
Objective of the assignment
This consultancy service is aimed at ensuring
continuous flow of water through rivers feeding Kihansi and Mtera reservoirs
for sustainable power generation from both plants that contributes 260MW to the
national grid and regulates Kidatu Hydropower plant on the downstream. The
objective of this consultancy is to carry out a study to establish the extent
of siltation/sedimentation in both Mtera reservoir and Kihansi pond.
The proposed investigations should therefore include:
i)
Establishment
of sediment loads (in and out of the Mtera/Kihansi pond) through field
measurements;
ii)
Estimating
the Mtera reservoir and Kihansi pond sedimentation rate, and;
iii)
Estimating
the remaining economic life of the reservoir and pond
Scope of Service
The scope of the consulting
services in respect of the project is:
·
Compilation and review of existing data/information such as design
reservoir bed topography or elevation-capacity/area curves or as part of the
desk search activities. Other information shall include general information on
the dam, reservoir, and drainage basin; information on all past surveys at the
reservoir; a graph showing the reservoir stage fluctuation or stage duration
curve; profiles of all reservoir and original bed profile and plots of selected
prior surveys, and; any data on sediment inflow and outflow which may be
available for estimating trap efficiency, sediment load (in and out of the
reservoir/pond),
·
Fieldwork to survey reservoir using modern techniques for precise
measurements, using relevant survey equipment,
·
Collecting reservoir bed core samples for bulky density, Particle Size
Distribution (PSD) and organic matter content determination,
·
Carry out laboratory analysis of collected data to determine sediment
deposition bulk density, organic matter content and suspended sediment concentration
The Tanzania Electric Supply Company Limited (TANESCO)
now invites eligible qualified consultants to express their interest in
participating and submitting the Expression of Interest (EoI) as
elaborated in the scope of the services above.
Eligible Interested Consultants must provide
information indicating that they are qualified to participate in providing the
services (brochures, description of similar assignments in the past three (3)
years, description of experience in similar conditions, availability of
appropriate skills amongst staff with their CV’s and certificates of
registration with relevant professional boards). Consultants may associate to
enhance their qualifications.
The Consulting firm will be selected in accordance
with procedures set out in Public Procurement Act 2011, Regulations 2013 for
Employment and Selection of Consultants Guidelines G.N. 446.
Firms are therefore encouraged to team up to enhance
their skill to meet this requirement.
Eligible Interested
Consultants may obtain further information at the address below from 09.00 –
12.30 hours and 14.00 – 16.30 hours local time (Monday to Friday) exclusive of
public holidays:
Secretary, Tender Board,
TANESCO Head Office-Umeme Park
Building, Ubungo-Morogoro Road, Third
Floor, Room No. 305A, P.O. Box
9024, Dar Es Salaam, Tanzania. Tel: 255 (22) 2451145/2452172; Fax: 255 (22) 2451145/2452172; Email: sec.tenderboard@tanesco.co.tz
All bids must be addressed to the Secretary, TANESCO Tender Board, TANESCO Head Office-Umeme Park Building, Ubungo-Morogoro Road,
Ground Floor, Room G.15, P.O. Box 9024, Dar
Es Salaam, Tanzania not later than 14th March, 2014 at 14:30hrs (local
time). The envelope shall be clearly marked
“TENDER NO. PA/001/14/HQ/C/02 FOR EXPRESSION OF INTEREST FOR PROVISION OF CONSULTANCY SERVICES FOR SEDIMENT MAPPING AT MTERA AND
KIHANSI RESERVOIRS)”.
No proposals are required to be submitted at this
stage. On the basis of obtained information from eligible interested
consultants, TANESCO will
prepare a shortlist of Consultants who will be invited through a Letter of
Invitation including detailed Terms of Reference (TOR) to submit Request for
Proposals (RFP).
Place, Date and Time of
Opening
The Documents for Expression of Interest submitted to
the above address shall be opened in public at TANESCO Twiga Board Room
immediately after 14.30 hours local
time on
14th March, 2014.
Late submission of the
documents, portion of documents, electronic documents, and documents not
received, documents not opened at the opening ceremony shall not be accepted
for evaluation irrespective of the circumstances.
MANAGING
DIRECTOR
TANZANIA
ELECTRIC SUPPLY COMPANY LIMITED
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