Regional Large Scale Project Showcase: From Development Plans to On-Stream Successes; a case of Somanga 250MW CCGT Power Plant - Tanzania Presented By: Decklan P. Mhaiki Deputy Managing Director Investments TANESCO
Regional Large Scale Project Showcase:
From Development Plans to On-Stream Successes; a case of Somanga 250MW CCGT Power Plant - Tanzania
Presented By: Decklan P. Mhaiki Deputy Managing Director Investments TANESCO
• Introduction • Current Status • Available Energy Resources • ESI Reforms Road Map • Future Grid Map • Somanga CCGT 250MW Power Plant
– Background – Location – Characteristics – Process – Timelines – Project Features
• Future PPP Projects • Conclusions
Contents
Population: 47.422Mil (2014 NBS est.)
Population Growth: 2.5%
Area : 945, 203 km2
GDP: 998.1USD (World Bank, 2014)
Electricity Demand Grown: 9% p.a (BRN, 2013)
Electricity Consumption: 131 kWh/Person (TANESCO, 2014)
Introduction - Tanzania
HYDRO, 561.84MW, 45%
GAS, 441MW, 35.3%
OIL, 223.4MW, 19.7%
Hydro Gas Oil
• Total Installed Capacity (Grid) – 1226.24MW
• Off-grid stations - 73.77MW (largely Oil)
Current Status - Generation
45%
20.2%
15.1%
5.7%
14.0%
Installed Capacity By Fuel Type / Ownership
HYDRO-TANESCO GAS-TANESCO GAS-IPP
LIQUID FUEL-TANESCO LIQUID FUEL-IPPs/EEP
Current Status - Generation
The System:
50Hz, ±2.5%,
Max. Demand:
934.62MW (Dec. 2014)
Transmission:
400kV – Under construction
220kV (2732.4km)
132kV (1538.5km)
66kV (546km)
Distribution:
33kV (14,652km)
11kV (5507km)
Customers: 1,501,162 (June, 2015)
Current Status - System
S/NO ENERGY RESOURCE POTENTIAL DEVELOPED TO
POWER
1 Gas 55Tcf 441MW
2 Hydro: Various sites 4.7GW 562MW
3 Geothermal: 58 sites 5,000MW None
4 Coal 1.9 billion tons None
5 Uranium Oxide 24,550 tons None
6 Wind: 7 sites Average wind speed 5 – 8m/s None
7 Biomass: wood fuel and agricultural waste
500MW 35MW
8 Solar: Several sites
Average daily solar insolation 4.6/kWh/m2
About 4MW
9 Tidal Under study None
Available Energy Resources
• Electricity Access rate: 38% (June, 2015)
• Connectivity level: 28.7% Av. (June, 2015)
8
Electricity Supply Industry Reforms Road Map 2014-2025
Background
• The project is earmarked in the national 2012 Power System Master Plan. It is planned to add 250MW in the national grid.
• The proposed power plant will utilize local natural gas from the Mtwara – Dar es Salaam main pipeline.
Background
• In the spirit of efficient utilization of local energy resources, the proposed power plant will utilize a Combined Cycle Gas Turbine (CCGT) technology.
• The project was chosen to be a pilot project to be implemented under Public Private Partnership (PPP) arrangement. All preparatory works are financed by the World Bank.
Location
• The Pre-feasibility study has indicated that the proposed plant has to be relocated from Mkuranga area, Pwani District to Somanga, in Kilwa District. The Kilwa site is near to the sea, gas infrastructure, Dar – Mtwara road and proposed substation.
Characteristics
• Plant Cooling Water will be
sourced from the sea, with a once-through cooling method.
• The generated power will be evacuated through a 400kV substation to the proposed main 400kV Mtwara – Kinyerezi Transmission line.
Intention
The project is planned to be implemented under PPP arrangement with an intention to:
• expedite project implementation; • quality Improvement; • access to new sources of private
capital; and • allocate risks to the party (private
party) best able to manage the risk.
Characteristics
Process
For the competitive process, prior to start of EPC implementation works will follow the following route .
Timelines
ACTIVITY DURATION (Months)
START END
PFS 5 Oct. 2014 Feb. 2015
EOI (TA) 6 Feb. 2014 Jul. 2014
RFP (TA) 12 Aug. 2014 Aug. 2015
TRANSACTIONS (+ Financial Close) 18 Sept. 2015 Feb. 2017
EPC (Commissioning +COD ) 30 Mar. 2017 Aug. 2019
Project Features
Project Green field
Technology CCGT
Capacity 300MW
Source of Cooling Water Sea Water
Operation Base load
Location Kilwa District (about 245km south of Dar)
Status Under contracting of Transaction Advisor
Implementation PPP
Expected Commission date August 2019
Future PPP Power Projects
Project Size Technology/Fuel Location
Thermal Generation Projects
Ngaka Coal Project 400MW Steam - Coal Mbinga
Solar 50MW Solar PV (Shinyanga/Dodoma)
Kinyerezi IV 430MW CCGT Dar es Salaam
Hydro Generation Projects
Rumakali 520MW Hydro Njombe
Ruhudji 358MW Hydro Njombe
Conclusions
1. Tanzania has decided to develop IPP power projects using competitive methods
2. This is the first project to be developed in the competitive
mode
3. Interested Investors are invited to participate in the
process
4. More projects under way for Hydro, Coal, Gas, Solar, etc