Thesis/Dissertation Collections

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1 Rochester Institute of Technology RIT Scholar Works Theses Thesis/Dissertation Collections 2010 Improve stability operations in Kosovo's electrical energy distribution network: a case study of Northern Prishtina : [presentation given May 18, 2010] Lutfije Dervishi Follow this and additional works at: Recommended Citation Dervishi, Lutfije, "Improve stability operations in Kosovo's electrical energy distribution network: a case study of Northern Prishtina : [presentation given May 18, 2010]" (2010). Thesis. Rochester Institute of Technology. Accessed from This Master's Project is brought to you for free and open access by the Thesis/Dissertation Collections at RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact ritscholarworks@rit.edu.

2 ROCHESTER INSTITUTE OF TECHNOLOGY AMERICAN UNIVERSITY OF KOSOVO IMPROVE STABILITY OPERATIONS IN KOSOVO S ELECTRICAL ENERGY DISTRIBUTION NETWORK; A CASE STUDY OF NORTHERN PRISHTINA MAY, 2010 LUTFIJE DERVISHI

3 Network Problems High technical losses 17% 45mil.euros / 267mil.euros Bottle necks Customer dissatisfaction Unsafe environment Lack of businesses

4 Technical losses Prishtina Prizreni Mitrovica Ferizaji Peja Gjilani Gjakova Source: KEK

5 Technical losses in European countries Source: ERO 2008

6 Financial Causes Lack of investments in network High commercial losses Non payment electricity

7 Technical Causes Small conductor cross section High increase of loads Old network equipments Radial design, mainly rural Low voltage operation Lack of cables 15% 10% poles wood 75% steel and concrete poles cables

8 Example of radial line 44 SS 10/04kV 60km line MV Drop voltages Aqareva 45.13% Energy Technical losses 27.15% 45.13%

9 Technical Causes Over weighted pole Awry pole Source: KEK

10 N E T W O R K

11 Quality Standards Quality of voltage EN Nominal ( 10%; +10%) Declared voltage Continuity supply Service quality

12 Quality Voltage Standards Nominal Voltage 230V 380V 10kV 20kV 35kV Standard (-10%; +10%) (-10%; +10%) (-10%; +10%) (-10%; +10%) (-10%; +10%) Kosovo (-15%; +10%) (-15%; +10%) (-10%; +11%) (-10%; +10.5%) (-15%; +10%) Albania (-15%; +10%) (-15%; +10%) (n/a; 10.75%) (n/a; 20%) (-11%; 11%) Serbia (-5%; +5%) (-10%; +10%) (-10%; +10%) (-10%; +10%) (-10%; +10%) Croatia (-10%; +6%) (-10%; +6%) (-10%; +10%) (-10%; +10%) (-10%; +10%) Bosnia (-5%; +10%) (-5%; +10%) (-10%; +10%) (-10%; +10%) (-10%; +10%) Norway (-10%; +10%) (-10%; +10%) (-5%; +8%) (-5%; +8%) (-5%; +8%) Spain (-7%; +7%) (-7%; +7%) (-7%; +7%) (-7%; +7%) (-7%; +7%)

13 Study Case: Northern Prishtina Shalianet Kulla Barilevë Drenovc Barileva FEEDER Rezervoaret Kfor Kaçur FEEDER Bërnica e epërme-bardhosh Siçeva e ep. Sharban Trudë Bernice e posht dv=11.49 Bernicë e poshtme Bardhosh Kulla Kooperativa bujq Bardhosh Blinda Kabashi pr Milevc Kulla Rezervoari Kulla rezervoari Pompat J20 Sinidol TMK Llukar Bërnice e ep Fanalit Berisha Llukar Bërnica e ep.rekalit Bërnica e ep.2 Rrahmani Llukar Shkolla Llukar Fabrika Llukar Te varret Llukar Makovc MAkovci 2 Siçeva Trafo Pr. plastika MAkovci 3 FEEDER Llukar PRISHTINA 5 (2x40)MVA Fabrika e sokave Feeder K.Trimave 7 Butovc dv= dv=1.18 Source: KEK

14 Study Case: Northern Prishtina Main SS Prishtina 5 40% TR as 20kV 65% cables as 20kV SS Besia Energy received in northern Prishtina 121,504MWh (6,9 mil.euros) Technical losses 14% 17,469MWh (0,995 mil.euro)

15 SWOT Analysis Strengths o Existing capacities o Existing staff o Bottle necks finding o Previous experiences o Supervising projects Opportunities o Business development o Integration European Standards o Environment Security o Advanced Technology Weaknesses Financing difficulties Direction changes inv. Project delays Improper manag. Non technical influences Threats Lack future investments Property issues Social impacts

16 Technical Solutions A1: Upgrade cross section and build reserve supplies A2: Transition from voltage level 10kV into 20kV A3: Improve stability in LVN A4: Connect the feeders Besia

17 Technical Solutions Activity Energy received (MWh) Reduce of technical losses (MWh) Reduce of Reduce of technical losses (%) technical losses (euro) A1 Activities I 112, ,162 A2 Activities II 112,872 3, ,362 A3 Activities III 112,872 3, ,325 A4 Activities IV 121,504 1, ,039 TOTAL 121,504 9, ,888

18 Management Solutions Project support Human resources Management Training needs Security procedures Communication with Stakeholders

19 Cost estimation Activities I Activities II Activities III Activities IV Total Energy saved from losses (euro) 15, , ,325 87, ,888 Investments (euro) 200,000 3,200,000 1,700,000 1,000,000 6,100,000 Return on investment from technical losses

20 Project Benefits Technical cost benefit o Reduce technical losses o Ensure reliability and quality of electric supply o Modernize network capability o Elemination bottle necks Social & Environmental Benefits Investments in businesses

21 Future Recommendations MANAGERIAL Reduce commercial losses Increase collection Synchronized plans Northern Prishtina pilot project Spend more time developing the projects Develop PMO Offer industrial businesses special supplies

22 FINANCIAL Investments by KEK Involve telecommunication's operators Banks Donators Calculate NPV or IRR Money saved other similar projects

23 TECHNICAL EES computerized (LVN) Transition from 10kV to 20kV Replace overhead lines with cables (main roads) Separate feeder = 1+1 Change old equipments Increase supply sources Abolition 35kV level Reinforce MVN (cables, upgrade OHL) Shorten long lines Improve quality in LVN

24 Future Project Selection Criteria High technical losses & drop voltages Load shedding constraint Customer complaints Increase of electricity demands Maintenance equipment changes High cost benefit

25 YouTube - TJ's Electrical Power Line Explosion