CONTACT 2 Golgotha Str. Oasi Varipetrou GR Chania, GREECE Tel.: , Fax: Web:

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1 CONTACT 2 Golgotha Str. Oasi Varipetrou GR Chania, GREECE Tel.: , Fax: oakae@oakae.gr Web:

2 THE ORGANIZATION FOR THE DEVELOPMENT OF CRETE SA Founded in 2013 through the merge of OADYK (Organization for the Development of Western Crete) OANAK (Organization for the Development of Eastern Crete) the public authorities (EYDE BOAK, EYDE Aposelemi) Governmental Organization Ministry of Infrastructure, Transport and Networks For studding, planning, constructing & managing The Trans- European road network of Crete The Hydraulic Infrastructure (Dams, reservoirs, etc.) The water supply irrigation networks Furthermore it supports the development of the countryside through projects and Community Initiatives Aim: contribute to the development of Crete.

3 Our strategic plan Trans- European road network of Crete Construction, maintenance, management Road safety studies Hydraulic infrastructures Construction, maintenance, management Optimal οperation, monitoring, measuring Water supply - irrigation networks Water distribution, management Municipalities, DEYA, TOEB Waste water treatment plants Management Optimal operation

4 Chameziou Bridge 840 m. Trans- European road network of Crete Upgrading projects under construction Γ.Αγαπάκης, Δ/ντής ΕΥΔΕ/ΒΟΑΚ Χαμέζι

5 Upgrading projects under construction Agia Varvara - Apomarma Γ.Αγαπάκης, Δ/ντής ΕΥΔΕ/ΒΟΑΚ

6 Upgrading projects under construction Apomarma - Kastelli Γ.Αγαπάκης, Δ/ντής ΕΥΔΕ/ΒΟΑΚ

7 Upgrading projects under construction Apomarma - Kastelli Γ.Αγαπάκης, Δ/ντής ΕΥΔΕ/ΒΟΑΚ

8 Island of Crete Hydraulic infrastructures

9 Aposelemis Dam - Heraklio Budget: 232 mil Height: 61 m Reservoir vol: 27,1 mil m 3 Water supply of the cities of Heraklio - Agios Nikolaos Water treatment plant (refinery) m 3 /day

10 Potamon Dam - Rethymno Budget: 55 mil Height: 55 m Reservoir vol: 22,5 mil m 3 Water supply - irrigation water of Rethymno

11 Valsamiotis Dam - Chania Budget: 40 mil Height: 67,2 m Reservoir vol: 6 mil m 3 Support the Irrigation of Rethymno plain

12 Reservoir of Agios Georgios - Lasithi Budget: 10 mil Height: 10,2 m Reservoir vol: 2,15 mil m 3 Project to support Dam of Aposelemis

13 Pump stations Zourbos Vlite, Souda Water Drilling Georgioupolis

14 Project: Integrated Water Resources Management of Western Crete - Chania Irrigation ha Agia Lake City of Chania 430.km mains and distribution water networks 120 million m 3 of water are distributed annually m 3 tanks Valsamiotis Dam Kourna Lake

15 Project: Integrated Water Resources Management of Western Crete - Rethymno Irrigation ha Kourna Lake City of Rethymno Water Treatment Plant of Dramia Potamon Dam

16 Water Supply of Heraklio Chersonisos - Agios Nikolaos Malia Elounda- Neapolis Water Treatment Plant ( m 3 /day) Water distribution network 70 km Aposelemis DAM Water supply residents Reservoir Ag. Georgios hotel beds

17 Automation of irrigation water network The aim: Optimal operation, management, exploitation High quality of services Measurements (water & energy) Cost analysis, water prices, cost recovery Water & energy saving

18 Supervisory Control And Data Acquisition (SCADA) of O.A.K. S.A. Monitoring of reservoirs level, water flow, motors operation, electric currents, alarms. Water supply of Chania Water supply of Rethymno

19 Potamon Dam

20 Energy exploitation of the Potamon Dam (Pumped Storage Hybrid Power Station 50MW)

21 How does the HPS work The pumped-storage unit absorbs the wind production and the restricted by the law supplementary energy from the grid (when the available wind power is low) to elevate water from the lower reservoir and store it to the upper reservoir. The water turbine gives an agreed electricity production for a constant (8 h-during the peak demand hours) time period every day.

22 Project description (Contractor TERNA ENERGY SA, after International Request of Proposals) RES Production Units (2 Wind Parks with total installed power 81 MW, sited in the Municipality of Sitia) Water Turbine Production Units (3 reversible fixed speed units with Production 2x25 MW = 50 MW (+1 x25 MW backup) and Pumping 3x36 MW = 108 MW, sited near the Dam in the Municipality of Amari) Pump station (10 variable speed pumps 10x3, 216 MW = 32,16 MW, sited near the Dam, Municipality of Amari) Upper storage reservoir (Reservoir with capacity of 1,15 mill m 3, sited in the Municipality of Rethymno) Lower storage reservoir (Reservoir of the Dam of Potamon with capacity 22,5 mill m 3 sited in the Municipality of Amari) Guaranteed generated capacity : 50 MW Power of storage units ranges: FROM 1 x 36MW + 10 x 3,216MW = 68,16 MW TO 3 x 36MW + 10 x 3,216MW = 140,16MW. Project Budget: Current statement: Supply License from regulatory Authority of Energy (RAE).

23 Project description The 2 Wind Parks (WPs) total 81 MW 1) WP in the Location of Froudia Lygias-Platyvolo Municipality of Sitia, 39 MW (13-3 MW WGs) 2) WP in the Location of Troula Chalkias Korfi Municipality of Sitia 42 MW (14-3 MW WGs)

24 2 Wind Parks (WPs) total 81 MW

25 The site of the pumped storage units

26 UPPER STORAGE RESERVOIR RESERVOIR OF THE POTAMON DAM (LOWER STORAGE RESERVOIR)

27 The upper storage reservoir Storage capacity m 3 of water, located in the area Gargani, Charkia in the Municipality of Rethymno

28 UPPER STORAGE RESERVOIR Pump delivery & penstock pipes RESERVOIR OF THE POTAMON DAM (LOWER STORAGE RESERVOIR)

29 UPPER STORAGE RESERVOIR Pump delivery & penstock pipes RESERVOIR OF THE POTAMON DAM (LOWER STORAGE RESERVOIR)

30 10 x 3,216 MW = 32,16 MW 3x36 MW=108 MW 2x25 MW=50 MW 1x25 MW

31 2x25 MW=50 MW 1x25 MW

32 Volume from +188,00 until +203,00: 15,5 mil m , , , ,00

33 Annual Energy Balance of the HPS-50MW Sitia Delivered to the grid MWh Rethymno & Amari Wind Farms MWh Pump Station MWh Rejected MWh Water Turbine Production MWh HPS efficiency Indices Total net produced energy Technical efficiency MWh Wind Farm Capacity factor: 33,2% Mump storage system efficiency : 67,9%

34 Thank you for your attention!