MARIAKANI – DONGO KUNDU 220KV TRANSMISSION LINE AND ASSOCIATED SUBSTATIONS

KETRACO TENDER JANUARY 2024 

FORM OF INVITATION FOR BIDS

1. The Government of the Republic of Kenya has received a loan from Japan International Cooperation
Agency (JICA) towards the cost of Mombasa Special Economic Zone Development Project, Electricity of
Subproject and intends to apply part of the proceeds towards payments under the contract for Mariakani
– Dongo Kundu 220kV Transmission Line and Associated Substations.
2. The Kenya Electricity Transmission Company Limited (KETRACO) now invites sealed bids from eligible
Bidders for the design, construction and completion of;
(i) Construction of new 220/33kV Substation at Dongo Kundu, which consists of:
– 220kV air insulated switchgear with two (2) “breaker-and-a-third” diameters, 2,000A, 40kA
at 1 sec
– 36kV SF6 gas insulated switchgear, with single busbar, bus section, 3,000A, 31.5kA at 1 sec.
– 220/33kV transformer, 75MVA (2 units)
– 36kV Breaker Switch Capacitor (9MVar x 4 banks)
– Control, Protection & Metering, Substation Automation System (1 lot)
– LVAC, DC power supply, Inverter
– Telecommunication system (1 lot)
– SCADA, EMS database modification at Rabai RCC
– Civil & building works, CCTV, Transformer Firefighting, manually operated Gate, Outdoor
Lighting (1 lot)
(ii) Extension at 400/220kV Mariakani Substation, which consists of;
– 4th “breaker-and-a-third” diameter
– Modification of SAS, Busbar protection
– Modification of Telecommunication, SCADA, EMS data base at Rabai RCC
(iii) Construction of 220kV, double circuit, LL-ACSR 620mm2 (equiv. Canary) single conductor per
phase, Three Phase Transmission Line between Mariakani and Dongo Kundu, 51km with OPGW,
48 fiber cores, earth conductor (ACS) 58.6mm2 bird diverter
(iv) 33kV underground cable line, XLPE,3c x 300mm2Aluminium, with underground fibre optic cable
and RMU (4 units), Remote Control Centre, total route length 15.5km
(“the Facilities”). International competitive bidding will be conducted in accordance with
“Single-Stage Two-Envelope” Bidding Procedure.
3. Bidding will be conducted through procedures in accordance with the applicable Guidelines for Procurement
under Japanese ODA Loans (Special Terms for Economic Partnership – STEP apply), and is open to
all Bidders from eligible source countries, as defined in the Bidding Document.
4. Interested Bidders may obtain further information from and inspect the Bidding Document during office
hours at:

5. The Bidding Document may be obtained by interested Bidders free of charge on submission of a written
application to the address above.
6. Bids must be delivered to the below mentioned office on or before 10:00 hrs. on 9th April 2024 and must
be accompanied by a Bid security of Kenya Shilling Seventy Million (70 Million).
7. Bids will be opened in the presence of Bidders’ representatives who choose to attend at the offices as
specified in the Bidding Document.