Prof. Branka Nakomčić Smaragdakis Photovoltaic Systems as Actuators of Regional Development REG-PHOSYS, Osijek, 23 June 2014 “FTN NOVI SAD” ROOF-TOP PV PLANT IN NOVI SAD & COLLABORATION WITH ETF OSIJEK (Iskustva s fotonaponskom elektranom instaliranom na krovu zgrade Fakulteta tehničkih nauka u Novom Sadu i suradnja s Elektrotehničkim fakultetom Osijek) Prof. Vladimir Katić & Prof. Branka Nakomčić Smaragdakis University of Novi Sad Novi Sad, Serbia

1st part: Prof. Vladimir Katić CONTENT : 1st part: Prof. Vladimir Katić “FTN Novi Sad” Roof-top PV Plant in Novi Sad 2nd part: Prof. Branka Nakomčić Smaragdakis Collaboration with ETF Osijek

“FTN NOVI SAD” ROOF-TOP PV PLANT IN NOVI SAD CONTENT: RENEWABLE ENERGY POTENTIALS IN SERBIA SOLAR ENERGY POTENTIALS IN SERBIA GOVERMENT INCENTIVES FOR PV SYSTEMS PV PLANTS CAPACITY IN SERBIA PV PLANTS CONNECTION TO THE GRID CASE STUDY: PV PLANT “FTN NOVI SAD”, 10kWp CONCLUSIONS

RENEWABLE ENERGY MIX - POTENTIALS TOTAL: 5.06 Mtoe 5.06/15.531 = 32.5% 1 Biomass – not used (wasted) 41% (2.3Mtoe) 2 Biomass – in use 19% (1.1 Mtoe) 3 Solar energy 4% (0.2Mtoe) 4 Wind energy 2% (0.1Mtoe) 5 Geothermal energy 3% (0.2Mtoe) 6 Hydro energy – available 14% (0.8Mtoe) 7 Hydro energy - in use 16% (0.9Mtoe) 8 From waste 1% (0.04 Mtoe)

SOLAR ENERGY POTENTIALS IN SERBIA SOLAR RADIATION: 3.4 – 4.2 kWh/m2/day …… Max: 6.6 – 7.0 kWh/m2/day (July) ELECTRICITY GENERATION POTENTIAL: 1050-1275 kWh/1kWp/Year

GOVERNMENT INCENTIVES: FEED-IN TARIFS FOR PV SYSTEMS IN SERBIA SMALL PV PLANTS (2013-2016) ROOF-TOP <30kW : 20.66 ¢€ Flat-ROOFS 30kW – 500kW, f(P): 20.66 ¢€ – 16.25 ¢€ 20.941 – 9.383*P(MW) On the GROUND : 16.25 ¢€ Additional 5MW (Total 10MW) PV PLANTS (2009-2012) : 23 ¢€ Total 5MW

PV PLANTS CAPACITY IN SERBIA Privileged Producer of Electricity (2014): All RES: 83 producers 49,997.00 kW PV (Total): 30 producers 3,662.00 kW [Ground: 3,083kW; Roof-top(>30kW): 260 kW ; Roof-top(<30kW): 319 kW] Temporary permit / Privileged Producer of Electricity (2014): All RES: 88 producers 56,788.00 kW PV (Total): 82 producers 6,338.00 kW [Ground: 2,917kW; Roof-top(>30kW): 1,740 kW ; Roof-top(<30kW): 1,681 kW] LOST Permit (2014) PV (Total): 13 producers 3,559 kW

: PV PLANTS CAPACITY OPERATING PV PLANTS PV PLANTS IN DESIGN

CONECTION OF PV SYSTEMS INTO DISTRIBUTION NETWORK Technical Recommendation No.16 (EPS): Connection of small power plants: Voltage variation criteria Short circuit power criteria (only for >1MW) Flicker criteria Current harmonics criteria Synchronization criteria Maximum DC current injection criteria Block scheme of PV plant connection (single phase)

TYPES OF ROOF-TOP PV SYSTEMS IN-GRID PV SYSTEM OFF-GRID PV SYSTEM

CASE STUDY – PV PLANT “FTN NOVI SAD”

SOLAR RADIATION IN NOVI SAD HORIZONTAL SURFACE / OPTIMAL ANGLE SURFACE (34̊ )

CASE STUDY – PV PLANT “FTN NOVI SAD” - BLOCK SCHEME - Power grid 3x0,4kV, 50Hz Connection 8000W Inverter 9600Wp 40 PV panels 240W

CASE STUDY – PV PLANT “FTN NOVI SAD” - PV PLANT LOCATION -

CASE STUDY – PV PLANT “FTN NOVI SAD” - OPTIMIZATION OF THE SYSTEM -

CASE STUDY – PV PLANT “FTN NOVI SAD” - EQUIPMNET SELECTION - FN paneli Jinko Solar 240Wp 40 komada = 9600Wp Trofazni invertor SMA Sunny Tripower 8000

CASE STUDY – PV PLANT “FTN NOVI SAD” - COMMUNICATION EQUIPMENT -

CASE STUDY – PV PLANT “FTN NOVI SAD” Metalna noseća konstrukcija Hilti pod nagibnim uglom 30°

CASE STUDY – PV PLANT “FTN NOVI SAD” Designing process from June 2011 Construction from August 2011 Testing, measurement and connection to the grid Oct. 24, 2011.

CASE STUDY – PV PLANT “FTN NOVI SAD” Opened on Oct. 24, 2011 Test Operation until Dec.31, 2011 In Nov. 2011 – achieved status of Temporary privileged electricity producer (from June 2012 Privileged producer) Dec. 2011 – contract with EPS of “green-energy” delivery is signed

CASE STUDY – PV PLANT “FTN NOVI SAD” - GENERATION DATA - Total: 2012: 12,150 kWh; 2013: 11,176 kWh (PV GIS Estim. 11,200)

CONCLUSIONS Very good solar energy potential is available in Serbia, but low installed capacity Limitation on installed capacity in Serbia due to limited quota for privileged producers (feed-in tariffs) - Better support is needed from the state, PV plant “FTN Novi Sad” is operating without problems. O&M costs are very low. Generated electrical energy is 4% above estimated using JRC data. Local industry still does not recognize such product as a market opportunity

THANK YOU FOR YOUR ATTENTION ! END of the 1st PART THANK YOU FOR YOUR ATTENTION !