HYDROELECTRIC POWER PLANTS of PPC S.A. in GREECE
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1 HYDROELECTRIC POWER PLANTS of PPC S.A. in GREECE Ioannis Argyrakis Director Hydroelectric Generation Department 1
2 A GENERAL INFORMATION FOR HPP s of PPC SA 2
3 HPPs location 3
4 The Hydroelectric development from 1950 up to date Hellas is an over 80 % mountainous country with a complicated rugged relief and a variety of climates Hydroelectric Power Plants are situated in the northwestern part, where most of the mountains are located 4
5 large Hydroelectric Power Plants, totalling MW, were built. Among them the 3 biggest ones : Agras, Ladhon, Louros, Tavropos, Kremasta, Kastraki, Edessaios, Polyphyto 5
6 1976 up to date 9 large & 5 small Hydroelectric Power Plants, totalling 1.800,2 MW, were built. Among them the two pump storage plants: Pournari I & II, Sfikia, Assomata, Stratos I, Stratos II, Pighai Aoos, Thissavros, Platanovryssi, Ghiona, Makrochori, Aghia Varvara, Ilarion HPP, Ilarion SHPP 6
7 HYDROELECTRIC POWER PLANTS of PPC S.A. IN OPERATION 7
8 8
9 The actual situation of PPC Hydroelectric Power Plants - Acheloos r. Hydro Scheme (Kremasta, Kastraki, Stratos-I): 907,2 MW - Aliakmon r. Hydro Scheme (Ilarion, Polyphyto, Sfikia, Assomata / Agras, Edessaios): 1020,0 MW - Arachthos r. Hydro Scheme (Pournari-I, Pournari-II / Aoos): 543,6 MW - Nestos r. Hydro Scheme (Thissavros-Platanovryssi): 500 MW - N. Plastiras HPP (Tavropos r.): 129,9 MW - Ladon HPP (Ladon r.): 70 MW - Small HPP: 46,7 MW TOTAL: 3.217,4 MW 9
10 10
11 Small Hydroelectric Power Plants - SHPP Stratos II on Acheloos river in Western Greece: Capacity 6.2 MW - SHPP Giona on Mornos river in Central Greece: Capacity 8.5 MW - SHPP Glafkos on Glafkos river in South-Western Greece: Capacity 4.1 MW - SHPP Ilarion on Aliakmon river in North-Western Greece: Capacity 4.2 MW - SHPP Aghia Varvara on Aliakmon river in North Greece: Capacity 0.92 MW - SHPP Makrochori on Aliakmon river in North Greece: Capacity 10.8 MW - SHPP Vermio on Tripotamos river in North Greece: Capacity 1.34 MW - SHPP Louros on Louros river in Western Greece: Capacity 10.3 MW - SHPP Almiros on Almiros river on Crete island: Capacity 0.3 MW TOTAL: 46.7 MW 11
12 Acheloos r. Hydroelectric Scheme in Western Greece [Western Continental territory] 12
13 Acheloos Hydroelectric Scheme KREMASTA HPP KASTRAKI HPP STRATOS-Ι HPP STRATOS-ΙΙ Small HPP 13
14 Acheloos Hydroelectric Scheme Acheloos river Dam height (m) Res. net capacity (mi M3) Installed Power (MW) Kremasta HPP ,2 Kastraki HPP Stratos-I HPP Stratos-II small HPP - - 6,2 Total 913,4 Ghiona small HPP (upstream of a dissipation structure on a branch of the Mornos r. reservoir - Athens water supply conduit) - - 8,5 Glafkos small HPP (Glafkos river) - - 3,7 Total 12,2 GRAND TOTAL 925,6 14
15 It is the largest Hellenic Hydroelectric Power Plant Acheloos Hydroelectric Scheme Kremasta HPP Location: West. Cont. Greece, Aetoloakarnania prefecture Purpose: hydropower, flood control Commercial operat.: 1966 Installed power: 437,2 ΜW (4x109,3) Francis type turbines Mean an. Product.: 848 GWH Dam: earthfill, 165 m height Reserv. net cap.: 3300 m.c.m. 15
16 Acheloos Hydroelectric Scheme Kastraki HPP Location: West. Cont. Greece, Aetoloakarnania prefecture Purpose: hydropower, irrigation, water supply Commercial operat.: 1969 Installed power: 320 ΜW (4x80) Francis type turbines Mean an. Product.: 598 GWH Dam: earthfill, 96 m height Reserv. net cap.: 53 m.c.m. 16
17 Acheloos Hydroelectric Scheme Stratos-I HPP & Stratos-II small HPP Location: West. Cont. Greece, Aetoloakarnania pref. Purpose: hydropower, irrigation Commercial operat.: 1989 Installed power: 150 ΜW Francis type turb. 6,2 MW Tube-S type turb. Mean an. Product.: 237 GWH Dam: earthfill, 26 m height Reserv. net cap.: 11 m.c.m. 17
18 Acheloos Hydroelectric Scheme Glafkos small HPP Location: Northwest Peloponnese, Achaea prefecture Purpose: hydropower, irrigation, water supply Commercial operat.: 1926 Installed power: 3,7 ΜW (2x1,4) Pelton & (1x2,29) Francis type turb. Mean an. Product.: 11,4 GWH 18
19 Acheloos Hydroelectric Scheme Ghiona small HPP Location: East Continental Greece, Fokis prefecture Purpose: hydropower, water supply Commercial operat.: 1988 Installed power: 8,5 ΜW (1x8,5) Francis type turbines Mean an. Product.: 40 GWH 19
20 Aliakmon r. Hydroelectric Scheme in Northern Greece [Western/Central Macedonia territory] 20
21 Aliakmon Hydroelectric Scheme AGRAS HPP EDESSAIOS HPP VERMIO Small HPP ASSOMATA HPP * REREGULATION RESERVOIR * AGHIA VARVARA Small HPP * MAKROCHORI Small HPP SFIKIA HPP POLYPHYTO HPP ILARION HPP 21
22 HPP in Aliakmon river (General Layout) 22
23 Aliakmon river Aliakmon Hydroelectric Scheme Dam height (m) Res. net capacity (mi M3) Installed Power (MW) Ilarion HPP Ilarion Small HPP 4,2 Polyphyto HPP Sfikia HPP (pump-storage) Assomata HPP Aghia Varvara Small HPP 0,9 Makrochori Small HPP ,8 Aliakmon tributaries Total 966,9 Vermio small HPP (Tripotamos r.) - - 1,34 Agras HPP (Vodas r.) Edessaios HPP (Vodas r.) Total 70,3 GRAND TOTAL 1037,3 23
24 Aliakmon r. Hydroelectric Scheme Ilarion HPP Location: Western Macedonia, Kozani prefecture Purpose: hydropower, irrigation, water supply Commercial operat.: 2014 Installed power: 153 ΜW (2x76,5) Francis type turbines Mean an. Product.: 320 GWH Dam: rockfill, 130 m height Reserv. net cap.: 270 m.c.m. 24
25 Aliakmon r. Hydroelectric Scheme Ilarion Small HPP Location: Western Macedonia, Kozani prefecture Purpose: hydropower Commercial operat.: 2015 Installed power: 4,2 ΜW Francis type turbines Mean an. Product.: 9 GWH 25
26 Aliakmon Hydroelectric Scheme Polyphyto HPP Location: Western Macedonia, Kozani prefecture Purpose: hydropower, irrigation, water supply, flood control Commercial operat.: 1974/75 Installed power: 375 ΜW (3x125) Francis type turbines Mean an. Product.: 420 GWH Dam: rockfill, 112 m height Reserv. net cap.: 1220 m.c.m. 26
27 Aliakmon Hydroelectric Scheme Sfikia HPP (pump-storage) Location: Central Macedonia, Imathia prefecture Purpose: hydropower Commercial operat.: 1985/86 Installed power: 315 ΜW (3x105) Francis type pumb turbines Mean an. Product.: 380 GWH (incl. 200 GWH due to pumping) Dam: earthfill, 82 m height Reserv. net cap.: 18 m.c.m. 27
28 Aliakmon Hydroelectric Scheme Assomata HPP Location: Central Macedonia, Imathia prefecture Purpose: hydropower, irrigation Commercial operat.: 1985 Installed power: 108 ΜW (2x54) Francis type turbines Mean an. Product.: 130 GWH Dam: earthfill, 52 m height Reserv. net cap.: 10 m.c.m. 28
29 Aliakmon Hydroelectric Scheme Reregulation Reservoir & New Reregulation Aghia Varvara Small HPP 29
30 Aliakmon Hydroelectric Scheme Makrochori small HPP Location: Central Macedonia, Imathia prefecture Purpose: hydropower, irrigation, water supply Commercial operat.: 1992 Installed power: 10,8 ΜW (3x3,6) Caplan tubular S type turb. Mean an. Product.: 30 GWH 30
31 Aliakmon Hydroelectric Scheme Vermio small HPP Location: Central Macedonia, Imathia prefecture Purpose: hydropower, water supply Commercial operat.: 1936 Installed power: 1,5 ΜW (2x0,75) Francis type turb. Mean an. Product.: 6 GWH 31
32 Aliakmon Hydroelectric Scheme Agras HPP Location: Central Macedonia, Pella prefecture Purpose: hydropower, irrigation, water supply Commercial operat.: 1954 Installed power: 50 ΜW (2x25) Francis type turb. Mean an. Product.: 35 GWH 32
33 Aliakmon Hydroelectric Scheme Edessaios HPP Location: Central Macedonia, Pella prefecture Purpose: hydropower, irrigation, water supply Commercial operat.: 1970 Installed power: 19 ΜW (1x19) Francis type turb. Mean an. Product.: 25 GWH 33
34 Arachthos r. Hydroelectric Scheme in Northwestern Greece [Epirus territory] 34
35 Arachthos Hydroelectric Scheme PIGHAI AOOS HPP LOUROS small HPP POYRNARI-Ι HPP POURNARI-II HPP 35
36 Arachthos Hydroelectric Scheme Springs of Aoos river Dam height (m) Res. net capacity (mi M3) Installed Power (MW) Pighai Aoos HPP ,3 210 Arachthos river Pournari_I HPP Pournari_II HPP ,6 Louros river Louros small HPP 22 0,37 10,3 TOTAL 553,9 36
37 Arachthos Hydroelectric Scheme Pigai Aoos HPP Location: Epirus, Ioannina prefecture Purpose: hydropower Commercial operat.: 1990/1 Installed power: 210 ΜW (2x105) Pelton type turbines Mean an. Product.: 165 GWH Dam: earthfill, 78 m height Reserv. net cap.: 144,3 m.c.m. 37
38 It is the first hydro project fully planned & designed by the PPC s local staff Arachthos Hydroelectric Scheme Pournari-I HPP Location: Epirus, Arta prefecture Purpose: hydropower, irrigation, flood control Commercial operat.: 1981 Installed power: 300 ΜW (3x100) Francis type turbines Mean an. Product.: 235 GWH Dam: earthfill, 87 m height Reserv. net cap.: 303 m.c.m. 38
39 Arachthos Hydroelectric Scheme Pournari-II HPP Location: Epirus, Arta prefecture Purpose: hydropower, irrigation Commercial operat.: 1998/9 Installed power: 33,6 ΜW (2x16) bulb & (1x1,6) S units Mean an. Product.: 45 GWH Dam: earthfill, 15 m height Reserv. net cap.: 4 m.c.m. 39
40 Arachthos Hydroelectric Scheme Louros small HPP Location: Epirus, Preveza prefecture Purpose: hydropower, irrigation Commercial operat.: 1954 Installed power: 10,3 ΜW (2x2,5) & (1x5,3) Francis type turbines Mean an. Product.: 50 GWH Dam: concrete grav. arch, 22 m height Reserv. net cap.: 0,37 m.c.m. 40
41 Nestos r. Hydroelectric Scheme in Northern Greece (Eastern Macedonia territory) 41
42 Nestos Hydroelectric Scheme THISSAVROS HPP PLATANOVRYSSI HPP 42
43 Nestos Hydroelectric Scheme Nestos river Dam height (m) Res. net capacity (mi M3) Installed Power (MW) Thissavros HPP (pump-storage) Platanovryssi HPP TOTAL
44 Nestos Hydroelectric Scheme Thissavros HPP (pump-storage) Location: Eastern Macedonia, Drama prefecture Purpose: hydropower, irrigation, flood control Commercial operat.: 1998 Installed power: 384 ΜW (3x128) Francis type pump turbines Mean an. Product.: 440 GWH (incl. GWH due to pumping) Dam: rockfill, 172 m height Reserv. net cap.: 565 m.c.m. 44
45 It is the first RCC dam in the construction of which the fly ash of the Ptolemais thermal plant was utilized as basic cement, achieving thus big financial benefits & reducing the construction expenses Nestos Hydroelectric Scheme Platanovryssi HPP Location: Eastern Macedonia, Drama prefecture Purpose: hydropower, irrigation Commercial operat.: 1999 Installed power: 116 ΜW (2x58) Francis type turbines Mean an. Product.: 240 GWH Dam: Roller Compacted Concrete, 95 m height Reserv. net cap.: 57 m.c.m. 45
46 Ladon hydroelectric power plant in Southern Greece [Peloponnese territory] 46
47 Ladon Hydroelectric Power Plant LADON HPP 47
48 Ladon Hydroelectric Power Plant (Ladon river) Location: Central Peloponnese, Arcadia prefecture Purpose: hydropower, water supply Commercial operat.: 1955 Installed power: 70 ΜW (2x35) Francis type turbines Mean an. Product.: 260 GWH Dam: concrete buttres gravity, 56 m height Reserv. net cap.: 46,2 m.c.m. 48
49 N. Plastiras hydroelectric plant in Central Greece [Thessalia territory] 49
50 N. Plastiras Hydroelectric Power Plant N. PLASTIRAS HEP 50
51 N. Plastiras Hydroelectric Power Plant (Tavropos river) Location: Thessaly, Karditsa prefecture Purpose: hydropower, irrigation water supply Commercial operat.: 1962 Installed power: 129,9 ΜW (3x43,3) Francis type turbines Mean an. Product.: 198 GWH Dam: concrete arch, 83 m height Reserv. net cap.: 300 m.c.m. 51
52 The multiple role of HPP Produce clear renewable energy, cover peak load demands and offer ancillary services to the Grid Flood control Retain water flows and use during draught Irrigation & Cities Water supply Water supply for cooling PPC s Thermal Plant units and other industry needs Fishing, maritime sports, alternative tourism, etc Road construction and other substructures in the local region In general, hydropower plants upgrade the environment by providing ecological flow into the river beds and constituting water habitats of unique beauty for the local aquatic fauna 52
53 53
54 54
55 55
56 WATER NEEDS FOR VARIOUS USES [AVERAGE ] USE (mi.m3) Irrigation ( ha are watered in the of the HPP) downstream areas Water supply (Thessaloniki, Arta, Agrinio, Karditsa, etc.) 133 Cooling PPC s Thermoelectric Plants 66 Ecological flow into the river beds TOTAL
57 57
58 Snapshots of the PPC reservoirs Fishing lake Maritime sports, entertainment & sport facilities Lakeside livestock Scientific observation Recreation, refreshment, relaxation, pleasure 58
59 Acheloos Hydroelectric Scheme Stratos HPP, maritime sports 59
60 Acheloos Hydroelectric Scheme Stratos HPP, maritime sports 60
61 Aliakmon Hydroelectric Scheme Polyphyto HPP, fishing lake 61
62 Aliakmon Hydroelectric Scheme Polyphyto HPP, Entertainment & Sport facilities 62
63 Aliakmon Hydroelectric Scheme Polyphyto HPP, entertainment & sport facilities 63
64 Aliakmon Hydroelectric Scheme Agras-Edessaios HPP, fishing Nission Lake 64
65 Aliakmon Hydroelectric Scheme Polyphyto HPP, lakeside livestock 65
66 PPC s NEW HYDROELECTRIC PROJECTS 66
67 PPC s NEW HYDROELECTRIC PROJECTS UNDER CONSTRUCTION MESSOCHORA HEP IKARIA HYBRID POWER PROJECT METSOVITIKO HEP RESENTLY FINISHED PAPADIA DAM AG. VARVARA REREGULATING PROJECT ILARION HEP 67
68 B OPERATION OF HPPs OF PPC SA AND THEIR CONTRIBUTION IN WATER MANAGEMENT 68
69 1. GENERAL HPPs OF PPC SA manage a great portion of water reserves in Greece,and as multipurpose schemes provide additional services and water uses for third parties( flood control, irrigation, water supply, recreation etc ). Mean annual water quantity that PPS SA manages is about 8 billion cu. Meters. Net actual storage capacity of PPC s reservoirs is about 5,73 bill.cub meters,corresponding to 3350 Gwh (max) 69
70 2. STRATEGIC TARGET IN HPP s EXPLOITATION As a General Target related to the HPPs exploitation strategy, is to optimize the value of water inflows not only from the energy production point of view but also by covering the needs of water to third parties, while keeping in a high degree the safety of the dams, avoiding as much as it is possible water spilling. Maximizing the energy potential, we have to keep the reservoir s level higher and operate the hydro units at the best efficiency load. Operation in peak loads contributes in maximizing the value of energy produced by a certain quantity of water 70
71 3. CONSTRAINS IN HPPs OPERATION ( 1) Maximizing the value of Water Inflows and securing water reserves for covering water demand means: High level in reservoirs Peak operation Risks to be taken: Water spilling Decreased flood control capability Dam safety 71
72 3. CONSTRAINS IN HPPs OPERATION ( 2) Meteorological forecasts are stochastic especially for long period so the methodology for water management is based on: Statistic data for 20 years Technical data of the installations Water needs Energy demand Constrains in the exploitation procedure (limits in water discharges down stream ) Experience 72
73 4. WATER DEMAND (average ) USE DEMAND in million cubic meters Corresponding to GWH WATER SUPPLY IRRIGATION ECOLOGICAL FLOW COOLING Thermoelectric Plants TOTAL
74 5. WATER MANAGEMENT WATER RESERVES DEVELOPMENT TARGET:END OF MAY WATER RESERVES Gwh OCTOBER (average 1750) Gwh DECEMBER (average 1900) Gwh MARCH (average 2420) Gwh MAY ( END ) (average 2880) Gwh 74
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83 STATISTICAL CURVES FOR WATER RESERVES FOR EACH MONTH 83
84 ACTUAL CURVES FOR WATER RESERVES FOR EACH MONTH 84
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86 86
87 Thank you!
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