Eng. Samuel Ndirangu Chief Manager ICT Kenya Power Kenya

Transcription

1 Eng. Samuel Ndirangu Chief Manager ICT Kenya Power Kenya

2 Improving operational efficiency of the Mombasa electrical distribution network through deployment of a Distribution Automation System (DAS) Eng. Samuel Ndirangu Kenya Power, Kenya

3 Contents Kenya s electricity sector & Kenya Power s mandate Introduction to DAS project scope DAS System Architecture DAS Installation Benefits & conclusions

4 Electricity Sub-Sector Structure 4

5 Kenya Power s Mandate Kenya Power & Lighting Co. Ltd is a commercial state corporation with the mandate to: Purchase bulk electricity supply Transmit Distribute Retail electricity to end use customers throughout Kenya 5

6 Kenya Power Ownership Structure (as at June 2013) East African Residents 36.6% Nonresidents 8.9% Treasury 50.1% Kenya Re- Insurance 0.3% N.S.S.F 4.1% 6

7 Kenya Power s Vision, Mission & Strategic Pillars Vision : to provide world class power that delights our customers Customer Infrastructure Innovation Culture Sources of Power Efficiency Financial Sustainability Mission : Powering people for better lives Core values: Customer First; One Team; Passion; Integrity, Excellence 7

8 Some Key Statistics 8

9 Capacity / Demand MW Key Statistics...cont. Installed Capacity and Peak Demand MW Projected INSTALLED CAPACITY MW PEAK DEMAND MW 9

10 Consumption by Customer Category % Electricity consumption by category Number of Customers by Category Street lights 0% Domestic 25% Street Lights 0.1% Rural Electrific ation 19.3% Commer cial Industri al 0.1% Domesti c 73.2% Commer cial & Industria l 58% Small Commer cial 17% Small Commer cial 7.3% 10

11 Introducing the project Power quality & reliability Challenges Drivers

12 Introducing the project Objectives Better service Power System Automation SCADA Control system Remote Control and Monitoring Benefits Minimise customer outages Time-saving solutions Cost reductions

13 DAS Project Scope RABAI Control Centre Repeater at Electricy House Repeater at Kwale Courtesy of Lucy Switchgear Ltd Pole mounted switches

14 DAS Project Scope 97 off 11KV overhead line site installations 57 off 33KV overhead line site installations 12 off 11KV ground mounted site installations A Control Centre, radio base station and two radio control repeating stations using a SCADA system supplied and commissioned by the vendor Courtesy of Lucy Switchgear Ltd

15 A close working relationship Providing knowledge and local expertise Location survey On the ground conditions The establishment of an agreed and clearly communicated strategy at the outset ensured Kenya Power was confident that the supplier would meet their requirements

16 DAS System Architecture

17 DAS Work Stations

18 Communications Architecture

19 Installation less than 18 months Successful installation Good working relationship Strong project management Managing the isolation and earthing Surge arrestors Earthing requirements Earthing works

20 Time Time Better planning Reduction in crew travel time Before DAS Fault repair Manual switching Fault isolation After DAS Fault repair Reliability improvement in network is proportional to feeder segmentation & automation Travel time to site Fault identification Travel time to site Fault isolation Fault identification

21 Reduction in customer minutes lost Average response time on identifying a fault / outage Before 1-2 hours After < 30 s Average time spent on performing switching / isolation for planned outages Customer minutes offline due to outages for transient faults Before 2-3 hours Before 1-2 hours After 2-5 mins After < 20 s

22 Energy related savings Reduction in energy not supplied Savings due to reducing technical losses Customer related Enhanced customer service through better restoration times Improved customer perception of Energy Supplier Improved technical capabilities of Energy Supplier

23 Future Plans Further expansion Asset database Gather essential data Remove, Refurbish or Replace Extend the life of existing assets with increased functionality Prioritisation

24 Thank You Q&A?