Yearly Report on the Operation of the Czech Electricity Grid

Transkript

1 Yearly Report on the Operation of the Czech Electricity Grid 216 Statistics and Quality Monitoring, ERO, Prague

2 216 Table of contents General information and commentary 1 Abbreviations, acronyms and explanations 2 page 3 Commentary on the year under review page 4 Electrical energy balances, and consumption 3.1 Electrical energy balances - page Electrical energy balances - consumption page Development of electrical energy balances and page Fuels and technologies used in gross electricity page Electricity and consumption page Development of electricity consumption by demand category page 1 Electricity and consumption in Czech Regions and regional distribution companies 4.1 Gross electricity in Czech Regions by generating technology page Net electricity consumption in Czech Regions by demand category page Net electricity consumption in Czech Regions by national economy sector page Fuels and technologies in gross electricity in Czech Regions page Net electricity consumption in each RDS page 14 Electricity by technology and fuel 5 Nuclear power plants and thermal power stations page 15 6 Combined cycle plants page 16 7 Gas fired power stations page 17 8 Hydroelectric, including pumped storage, power stations page 18 9 Wind power plants page 19 1 Photovoltaic plants page 2 11 Combined heat and power (co) page Generation from biomass page Generation from biogas page Gross electricity from renewable energy sources page 24 Installed capacity 15 Development of installed capacity in the Czech electricity grid and breakdown by Czech Regions page 25 Cross-border flows 16.1 Cross-border physical flows page Electricity exports and imports (physical flows) page 27 Maximum and minimum loads 17.1 Grid peak load day page Grid minimum load day page Monthly peak and minimum loads in the Czech grid (gross w/o pumping at PSHE) page Gross consumption w/o pumping at PSHE on the days of the annual peak and minimum page 31 Balances, technical details and supply quality in TS and RDSs 18 Balances of physical flows in TS and RDSs page Key technical details about the transmission system and RDSs page 33 2 Electricity supply quality page 34 Additional graphs and map 21 Additional graphs page Map page 37 Page 2 of 37

3 1 Abbreviations, acronyms and explanations BDMW CAIDI CC CHP DS DSO EHV GFPS HD_C HE HV LD_B LD_C LD_H LDS LV NPP PSHE PV RDS RES SAIDI SAIFI TPS TS TSO WPP Biologically degradable municipal waste Customer Average Interruption Duration Index in the period under review combined cycle plants combined heat and power distribution system distribution system operator extra high voltage over 52 kv (under the ČSN 331 standard) gas fired power stations high demand customers hydroelectric power stations high voltage from 1 kv to 52 kv (under the ČSN 331 standard) low demand customers, businesses low demand customers low demand customers, households local distribution system low voltage up to 1 kv (under the ČSN 331 standard) nuclear power plants pumped storage hydroelectric power stations photovoltaic plants regional distribution system renewable energy sources System Average Interruption Duration Index in the period under review System Average Interruption Frequency Index in the period under review thermal power stations transmission system transmission system operator wind power plants Electricity consumption in the CR = NNC - HL h. Electricity house load for heat production (HLh) = Analogous to HL e. Gross electricity = electricity available at generator terminals. Gross load = The hourly value of electrical power supplied to the Czech electricity grid by connected electricity generators + net balance (it is shown with and without the value of pumping power at pumped storage hydroelectric power stations). House load for electricity (HLe) = This expression denotes the consumption of electricity that is required for the electricity generating process. It covers all operations that are crucial for electricity, including losses in electricity. The definition is based on 'process house load' specified in Section 2 (u) of Act No 165/212, on supported energy sources and amending certain laws, as amended. Installed capacities = Installed capacities reflect the capacities actually connected in the transmission system and the distribution systems, i.e. the figures do not reflect the sum of the licences awarded for the respective category of electricity. Local consumption = Consumption of generators and entities directly connected to the respective generating plant. National gross consumption (NGC) = NNC + consumption for pumping at PSHE + total losses + HL e. National net consumption (NNC) = HD_C at the EHV level + HD_C at the HV level + LD_H + LD_B + consumption of the TSO and DSOs + local consumption + HL h. Net balance = Net balance of cross-border exchanges of electrical energy in a given period. It is the difference between total electricity imports and total electricity exports in a given period. A positive value denotes electricity imports exceeding exports, and a negative value denotes electricity exports exceeding imports. Net electricity = Gross electricity minus HL e. losses = Losses in distribution system operators and the transmission system operator s networks. Page 3 of 37

4 216 2 Commentary on the year under review Under Section 17(7)(m) of Act No 458/2 as amended (the Energy Act), the Energy Regulatory Office (ERO) publishes the Yearly Report on the Operation of the Czech Electricity Grid for 216. All data is based on information received from licensees. This Report follows up on the yearly reports released in preceding years and provides information about the electricity industry s and, partly, the heating industry s key statistics for 216, including their development over the past ten years. Its respective chapters contain statistics on electrical energy balances for January to December 216 and electricity and consumption by category, including renewable energy sources (RES) and combined heat & power. The Report also contains an overview of the installed capacities in the Czech electrical grid, cross-border electricity flows and some region-specific evaluations. More detailed information can be found in the quarterly reports on the operation of the Czech electrical grid, which are posted on the ERO s website. The Yearly Report for 216 is based on the data in the fourth quarter of 216 report and contains some data that is more accurate than that in the released quarterly reports. Gross electricity declined for the fourth year in a row in 216 and totalled 83.3 TWh, down by GWh (-.7%) on 215. The country s gross electricity consumption increased for the second year in a row and amounted to 72.4 TWh (+2%); it was the highest for the last ten years. The largest year-on-year change in electricity was registered in combined cycle plants, up by 1,3 GWh (+47%); their installed capacity remained unchanged at MW. On the other hand, the year-on-year decline in the output from NPPs continued; they generated 2,737 GWh less ( 1.2%), while their installed capacity was 4,29 MW for the fourth year. Generation in large, over 1MW hydroelectric power stations increased by 154 GWh (+2%) in 216, while it had been decreasing for the preceding two years. Their installed capacity remained unchanged at 753 MW. Small hydroelectric power stations gross production rose by 51 MWh (+5%) and their installed capacity was almost unchanged at 337 MW. On the whole, in hydroelectric power stations rose by 26 GWh (+11.5%) compared with 215. While the installed capacity of small hydroelectric power stations accounted for 31% of the total installed capacity of all hydroelectric power stations, they produced 53% of total electricity from hydro stations. Electricity in pumped-storage hydroelectric power stations dropped by 74 GWh (-6%) yearon-year, while it had been continuously rising over the preceding seven years. Wind power plants produced 76 GWh less (-13%) yearon-year; their installed capacity was almost the same, 282 MW, for the third year. Photovoltaic electricity decreased by 132 GWh (-6%) year-on-year; their installed capacity has been slightly rising since 211, by units of percent, to 2,47 MW at the end of 216. While from biologically degradable municipal waste rose by 12 GWh (+14%) year-on-year, from biomass and biogas slightly decreased. Despite gross domestic electricity consumption rising by 1,44 GWh (+2%), gross electricity from renewable sources remained almost the same, 9,395 GWh (-.3%). The trend of growing electricity from renewable sources has stabilised over the past three years and gross renewable electricity accounted for 13% of total consumption last year. While electricity from brown coal remained at almost the same level, from hard coal increased by 554 GWh (11%) year on year. Generation from natural gas surged by 1,444 GWh (73%) compared with 215. Electricity consumption increased the most in the household category, by more than 437 GWh (+3%) year-on-year. Compared with the other Regions, the growth in household consumption was significantly higher in the Central Bohemian region, by almost 12 GWh (+4.1%). Overall, the Moravian-Silesian Region experienced the highest growth in consumption compared with 215, which was primarily due to higher supply to the energy sector (by 347 GWh). The largest growth in supply to the construction industry was in Prague (by 8.4 GWh), which also saw a significantly greater growth in supply to retail, services, education and health (by 517 GWh) compared with the other Regions. As in preceding years, 216 also saw a continuously negative net balance, amounting to almost 11 TWh for the whole year. This implies a year-on-year drop by 59 GWh (-12.3%), caused by a weaker cross-border flow of electricity from the Czech Republic. The net balance was the lowest over the last ten years. The annual peak load in the grid was registered on 5 December 216 at 16: (11,41 MW) and the annual minimum load on 7 August 216 at 5: (4,932 MW). The Report also evaluates hourly load and demand variations, including the structure of the generating capacities covering the peak load and the minimum load. Consumption on the peak load and minimum load days in preceding years is also shown. The Yearly Report also shows key technical data on the transmission system and regional distribution systems, including the SAIFI, SAIDI and CAIDI supply quality ratios; their evaluation suggests that the smallest number and shortest duration of electricity supply interruption was achieved since the beginning of monitoring these ratios. The latest map of the Czech electrical grid is attached to the Report. The information for this Yearly Report has been obtained directly from electricity generators and distribution system and transmission system operators; information about renewable energy sources has also been obtained with the help of OTE, a.s. Data sources are shown with the respective tables in the report. Please feel free to send your questions and comments to elektro.statistika@eru.cz. Page 4 of 37

5 3.1 Electrical energy balances - [GWh] Gross electricity Nuclear (NPP) Thermal (TPS) Combined cycle (CC) Gas fired (GFPS) Hydro (HE) Pumped storage (PSHE) Wind (WPP) Photovoltaic (PV) House load for electricity Nuclear (NPP) Thermal (TPS) Combined cycle (CC) Gas fired (GFPS) Hydro (HE) Pumped storage (PSHE) Wind (WPP) Photovoltaic (PV) House load for heat production Nuclear (NPP) Thermal (TPS) Combined cycle (CC) Gas fired (GFPS) Net electricity Nuclear (NPP) Thermal (TPS) Combined cycle (CC) Gas fired (GFPS) Hydro (HE) Pumped storage (PSHE) Wind (WPP) Photovoltaic (PV) 216 January 7, , , February 7, ,28.3 3, March 8,32.1 2, , April 7,73.6 2, , May 6,921. 2,532. 3, June 6, ,911. 3, July 6,22.5 1, , August September 6,15. 5,85.4 1, , , October 6, , , November 7, ,85.5 4, December 7, ,82.7 4, , , ,74.1 4,49.2 3, ,.5 1, , , , , , , ,273. 2,189. 4, , ,158. 3, , , , , , , , , , , , , , , , , , , , , , ,42.4 3, ,836. 1, , , ,96.2 3, , , ,52. 4,6.5 3, , , ,19.9 Data sources: ERÚ-1 report form, OTE, a.s. Page 5 of 37

6 3.2 Electrical energy balances - consumption [GWh] Net balance *) Electricity imports at TS level Electricity imports at DS level Electricity exports at TS level Electricity exports at DS level losses In the transmission system In distribution systems Electricity consumption in the CR HD_C at the EHV level HD_C at the HV level LD_B LD_H TSO s and DSOs consumption Local consumption House load for electricity House load for heat production Consumption for pumping at PSHE National gross consumption (NGC) National net consumption (NNC) *) 216 January , , February -1,19.5 1, , March -1, , , April -1, , , May -1, , June , July , August September , , , , , , , , , , , ,238. 5, , , , , , , , , ,84.2 4, , , , , , , , , , , , , , , , ,46. 4,592.7 October , , November , , December , , , , , , , , , , , , , , ,25.1 5,24. 5, , , , , , , , ,79.8 5, ,71.7 7, ,67.4 8, , ,35.5 5, ,17.7 1, , ,881.4 Data sources: ERÚ-1, ERÚ-2, and ERÚ-3 report forms, OTE, a.s. Includes data from the TS, RDSs and selected local distribution systems (physical flows) Gross electricity (GWh) Electricity balances (GWh) House load for electricity ,886.6 Consumption for pumping at PSHE -1,89.2-1,61.3-1,39.7-1, , ,29.5-1, ,14.5-1, , , Electricity imports at DS level , , Electricity exports at TS level 2, ,66.4 2, , ,47.8 1, , , , ,915. 1, , ,41.7 6, 7, Electricity exports at DS level ,losses , ,8.1 In5, the transmission system , In distribution systems , , , , Electricity consumption in the CR *) -5, , ,39.6-4,78.1-4, ,-4, , , , , , , ,71.7 HD_C , , ,at the EHV level HD_C at the HV level -2,8.7-1, ,76.1-1, , , , , , ,23.5-2,71.1-1, ,67.4 1, -8, LD_B ,27.3-1, LD_H -1, , , , , , , , , TSO s and DSOs consumption Local consumption Gross electricity National (NNC) -5,35.5 net consumption Nuclear (NPP) Thermal Combined cycle (CC) Consumption for pumping at PSHE (TPS) House load ,57.2 for electricity losses Gas fired (GFPS) Hydro (HE) -6,238. Pumped -5,84.2 storage (PSHE) National gross consumption (NGC) -6, , , ,343.9Consumption -5,264.6for pumping -5,46.at PSHE -5, ,25.1Net balance -6, , ,418.3 *) Wind (WPP) Photovoltaic (PV) National net consumption (NNC) -5, , , , , , , , , ,24. -5, , ,881.4 Page 6 of 37

7 3.3 Development of electrical energy balances and [GWh] 27 88,198 81,413 6,786 72,45 59,753 6,786 4, ,153 Gross electricity Net electricity House load for electricity (HLe) National gross consumption National net consumption House load for electricity (HLe) losses Consumption for pumping at PSHE Net balance *) *) 28 83,518 77,85 6,433 72,49 6,478 6,433 4, , ,25 75,99 6,26 68,66 57,112 6,26 4, , ,91 79,465 6,446 7,962 59,255 6,446 4, , ,561 81,28 6,533 7,517 58,634 6,533 4, , , , , , , Nuclear (NPP) Thermal (TPS) Combined cycle (CC) Gas fired (GFPS) Hydro (HE) Pumped storage (PSHE) Wind (WPP) Photovoltaic (PV) ,65 8,858 6,27 7,177 58,656 6,27 4,98 1,217-16, ,3 79,886 6,117 69,622 58,295 6,117 3,847 1,363-16, ,888 77,881 6,7 71,14 59,28 6,7 4,67 1,66-12, ,32 77,415 5,887 72,418 6,881 5,887 4,8 1,57-1,974 Data sources: previous yearly reports, ERÚ-1, ERÚ-2, and ERÚ-3 report forms, OTE, a.s. Includes data from the TS, RDSs and selected LDS (physical flows) Gross electricity ,574 81,88 6,485 7,453 58,799 6,485 4, , , , , , , ,25. 27, , , , ,9.1 27, , , ,25.8 2, , , ,973. 2, ,61.7 2, , , , ,261. 2,2.4 2, , , ,64.9 3, ,737. 2,92.8 3, , , ,3.4 3, , ,24.7 3, ,99.2 1, , , , , ,749. 3, , , , , , ,74.1 4,49.2 3, ,.5 1, ,131.5 Data sources: previous yearly reports, ERÚ-1 report form, OTE, a.s. Electrical energy balances (GWh) Gross electricity (GWh) 1, 5, -5, -1, Net electricity National net consumption Net electricity House load for electricity House load for electricity losses Consumption for pumping at PSHE Consumption for pumping at PSHE Net balance , , , , ,753-6,478 National net consumption -6,786-6,433 losses -4,915-4, Net balance -16,153-11, , ,26-57,112-6,26-4, ,644 1, 9, 8, 7, 6, 5, 4, 3, 2, 1, 21 79,465 6,446-59,255-6,446-4, ,948 Page 7 of ,28 81,88 8, , , , ,634-58,799Thermal (TPS) -58,656 Nuclear (NPP) -6,533-6,485-6,27 Gas fired (GFPS) -4,45-4,187Hydro (HE)-4, Photovoltaic -1,217 Wind (WPP) (PV) -17,44-17,12-16, ,886 77, , ,7-58,295 Combined cycle-59,28 (CC) -6,117-6,7 Pumped storage-4,67 (PSHE) -3,847-1,363-1,66-16,3-12, , ,887-6,881-5,887-4,8-1,57-1,974

8 3.4 Fuels and technologies in gross electricity [GWh] Gross electricity *) 27 88, , , , , , ,64.9 Brown coal Nuclear fuel Hard coal Natural gas gases Biogas Photovoltaic Biomass Hydro Pumped storage Wind BDMW solid fuels (excluding BDMW) Waste heat Fuel oils liquid fuels Coke *) Pre-214 data only in aggregate ,3.4 35, , , , , , , ,7. 1,99.2 1, , , ,14.2 5, , ,36.2 2,6.5 2, ,67.4 2,.5 1, Data sources: ERÚ-1 report form, OTE, a.s. Fuels and technologies in gross electricity, 216 Hard coal 7% , , ,84.8 5, , ,88.8 2, , ,9.9 1, , Natural gas 4% gases 4% Pumped storage 1% solid fuels (excluding BDMW).1% Fuel oils liquid fuels.1% Waste heat.3%.1%.1% Coke % Biomass 2% Nuclear fuel 29% RES 11% Hydro 2% Wind 1% Photovoltaic 3% Biogas 3% Brown coal 43% Page 8 of 37 BDMW.1%

9 3.5 Electricity and consumption [GWh] Gross electricity Net electricity 27 National gross consumption National net consumption Gross electricity Net electricity 28 National gross consumption National net consumption Gross electricity Net electricity 29 National gross consumption National net consumption Gross electricity Net electricity 21 National gross consumption National net consumption Gross electricity Net electricity 211 National gross consumption National net consumption Gross electricity Net electricity 212 National gross consumption National net consumption Gross electricity Net electricity 213 National gross consumption National net consumption Gross electricity Net electricity 214 National gross consumption National net consumption Gross electricity Net electricity 215 National gross consumption National net consumption Gross electricity Net electricity 216 National gross consumption National net consumption January 8, , , , , , ,2.6 5, , , , , , ,87.7 6, , , , , ,76.6 8,52.3 7, , ,568. 8, ,632. 6, , ,28.4 7, , , , , , ,586. 7, ,273. 6, ,821.4 February 7,32.1 6, , ,87. 7, ,195. 6, ,46.1 7,414. 6, , , ,58.5 7,3.5 6, ,219. 7, ,29.7 6,299. 5,27.3 7, , , , , ,84.9 6, , , ,87.7 5,986. 4, , ,29.6 6,29. 5, , , ,238. 5,237.7 March 7, , , , , , , , , , ,327. 5, ,59.4 7, , , ,87.8 7,34.3 6,439. 5, , , , , ,119. 7, , , , ,57.3 6, ,96.1 8,14.9 7,582. 6, , ,32.1 7, , , April 7, , , ,73.2 7, , ,97.3 5,98.6 6, ,38. 5, ,37.2 7,76.5 6, , , , , , , , ,86.5 5,739. 4, , ,617. 5, ,83.3 7, , , , , , , , ,73.6 6, ,84.2 4,873.8 May 7,53. 6, ,64. 4,67.6 6,43.7 5, , , , ,44.2 5,9.1 4,272. 6, , ,49.6 4,633. 7,99.6 6, , , , , , , ,97.5 6, , ,58.4 6, ,282. 5, , , ,96.5 5, , ,921. 6, , ,812.9 June 6,34.8 5, ,34.7 4, , , ,325. 4, ,57.4 5, ,14.3 4,22.6 6,1. 5, , , , , ,232. 4, , , ,28.5 4, , , ,1.8 4,327. 6, , , , , , ,4.8 4, , , , ,534.4 July 6,69.2 6,71.9 5, , , , , ,496. 6, , ,32.9 4,2. 6,87.5 6, ,19.6 4, , ,687. 5, ,264. 6, , , , , , , ,28.5 5, ,44.5 5, , ,2.3 5, , , ,22.5 5, , ,393.3 August September 6, , , ,96.7 5, ,49. 4, , , ,13.4 5, , , ,586. 4, , , ,19.6 5,451. 5, ,59. 5, ,196. 4, , , , , , , , , ,64.5 6, , ,53.7 5,35.5 5, , , , , ,836. 5, , , ,382. 4,42. 6, ,283. 6,13.1 5,89.7 5, ,39.5 4, , ,15. 7,28.2 5, , , , , , , , ,92.5 5, ,48.8 5,49.4 4, ,54.5 6,15. 5,85.4 5, ,43.5 5,46. 5, , ,689.6 October 7,66.7 7,74.5 6, ,23.5 6,68.3 6, ,15.1 5,99.7 7, , ,6.7 4, , , ,6.1 5,35.1 7, , , , , ,665. 5, ,28.4 7, , ,2.8 4, ,28.5 7,47.8 5,99.6 4,95.8 6,915. 6,42.6 6, , , , ,25.1 5,24. November 8,58.5 7, , , , , , , ,19.8 6, ,87.8 5,68.3 7, ,699. 6, , , , , , ,345. 6, , ,19.3 7,96.2 7, , ,22. 7, , ,12.1 5,9.3 6,971. 6, , , , ,836. 6, ,553.4 December 8, ,549. 6, , , ,88.8 6, , ,84.9 7,27.7 6, , , , , , , ,524. 6, ,27.1 7, ,92.4 6,39.9 5, , , ,35.4 5,242. 7, , ,36.9 5, , , , ,25.3 7, , ,79.8 5, , , , , , , ,49.3 6, ,25. 75,99. 68, , , , , , , ,27.5 7, , , ,88.4 7, , ,64.9 8, , , ,3.4 79, , , , , , , , , , ,881.4 Data sources: previous yearly reports, ERÚ-1, ERÚ-2, and ERÚ-3 report forms, OTE, a.s. Page 9 of 37

10 3.6 Development of electricity consumption by demand category [GWh] 27 55, , , , ,645.8 HD_C at HV HD_C at EHV LD_B LD_H 28 55, , , , , , ,737. 7, , , ,7.1 23,13.2 6, , , , , , ,5.5 14, , ,57.1 7, ,1.6 14, , ,896. 6,791. 8, , , , , , , , , , , , ,7.3 23,67.4 7, , ,819.1 Data sources: previous yearly reports, ERÚ-2 report form Development of high demand and low demand consumption (GWh) 15,2 15, 14,8 14,6 14,4 14,2 14, 13,8 13,6 6, 5, 4, 27 3, ,6 8,4 2, 8,2 8, 7,8 1, 7,6 7,4 7, ,5 24, 23,5 23, 22,5 22, 21,5 21, 2, , 9, 8, 7, 6, 5, Page 1 of

11 4.1 Gross electricity in Czech Regions by generating technology CR Jihočeský Region Jihomoravský Region Karlovarský Region Královéhradecký Region Liberecký Region Moravskoslezský Region Olomoucký Region Pardubický Region Plzeňský Region Prague Středočeský Region Ústecký Region Vysočina Region Zlínský Region NPP 24,14, ,149, ,954, TPS 45,74, , , ,49, , , ,139, , ,966, , , ,376, ,95, , , CC 4,49, , ,19, ,813, GFPS 3,613, , , , , , , , , , , , , , ,866.3 HE 2,, , , ,24. 78, , , , , , , , , , , PSHE 1,21, , , ,57.. WPP 496, , , , , , , ,98.2 1,2.9. 8, , , PV 2,131, , , , , , , , , ,29.4 2, , , , , ,31, ,318,36. 1,597, ,255,784. 1,183, , ,759, ,561, ,457, ,286,72.4 2, ,991, ,54, ,85,92. 7,66.8 Data sources: ERÚ-1 report form, OTE, a.s. 4.2 Net electricity consumption in Czech Regions by demand category CR Jihočeský Region Jihomoravský Region Karlovarský Region Královéhradecký Region Liberecký Region Moravskoslezský Region Olomoucký Region Pardubický Region Plzeňský Region Prague Středočeský Region Ústecký Region Vysočina Region Zlínský Region HD_C at EHV 7,616,394.3 HD_C at HV 23,67,415.8 LD_B 8,27,331.5 LD_H 14,819, ,7, , , , , , ,567, , , , , , ,327, , , ,118, ,597, ,219. 1,367,26.6 1,39, ,582, ,537, ,17,289. 1,55, ,245, ,748,32.9 1,567, ,45, ,34, , , , , , , , , , ,142, , , , , ,219, ,279, , , ,351. 1,321, , , ,9.3 1,437, ,64, ,5, , , ,239, ,17, ,252, ,247, ,463, ,178,725. 3,64,73.7 2,369, ,41, ,929, ,246,76.5 5,48, ,641, ,85,783.3 Data sources: ERÚ-2 report form Page 11 of 37 Net electricity consumption in Czech Regions (GWh) 8, 7, 6, 5, 4, 3, 2, 1, HD_C at EHV HD_C at HV LD_B LD_H

12 4.3 Net electricity consumption in Czech Regions by national economy sector CR Jihočeský Region Jihomoravský Region Karlovarský Region Královéhradecký Region Liberecký Region Moravskoslezský Region Olomoucký Region Pardubický Region Plzeňský Region Prague Středočeský Region Ústecký Region Vysočina Region Zlínský Region Industry Energy Transport Construction 17,576, , , ,63.6 1,191, , ,675, ,182, , ,161, ,978. 2,722,62.3 2,538, , , ,766, , , , , , , , , , , , ,46, , , ,76, , , , , , , , , , , , , , , , , , , ,89. 9, , , , ,335. 8, , ,9.4 5, ,279.1 Farming and forestry 743,2.2 78, ,11.1 7, , ,34.4 3, , , , , , , , , Households 14,822,23.9 1,219, ,279, , , ,351. 1,321, , , ,9.3 1,439,89.5 2,64,23.7 1,5, , ,357.6 Retail, services, schools, health care 13,169, , , , , , ,64, , , , ,356, ,762, , , , ,555, ,14.7 2,636, , , , , ,626. 3, , , , ,695, ,98,2.7 5,214,511. 1,525, ,44,1.9 2,494, ,996, ,79,25.2 2,43,75.8 3,47, ,939, ,886,57.7 5,772, ,76, ,127,415. Data sources: ERÚ-1 and ERÚ-2 report forms Net electricity consumption in Czech Regions by national economy sector (GWh) National economy sectors shares of total electricity consumption in the CR 9, 8, 7, Industry 6, 1% Energy 5, 3% 4, Transport 23% 3, Construction 2, 1, Farming and forestry 7% Households 26% 1% Page 12 of 37 3%.5% Retail, services, schools, health care

13 4.4 Fuels and technologies in gross electricity in Czech Regions [GWh] Jihočeský Jihomoravský (JHČ) Karlovarský (JHM) Královéhradecký (KVK) (HKK) Liberecký Moravskoslezský (LBK) (MSK) Olomoucký Pardubický (OLK) (PAK) Plzeňský (PLK) Prague Středočeský (PHA) (STČ) Ústecký (ULK) Vysočina (VYS)Zlínský (ZLK) JHČ JHM KVK HKK LBK MSK OLK PAK PLK PHA STČ ULK VYS ZLK Gross electricity 13, , , , , ,562. 4, , , , , Brown coal , , , , Nuclear fuel 12, , Hard coal , Natural gas , gases.. 2, Biogas Photovoltaic Biomass Hydro Pumped storage Wind BDMW solid fuels (excluding BDMW) Waste heat Fuel oils liquid fuels Coke , , ,14.2 5, , ,36.2 2,6.5 2, ,67.4 2,.5 1, Data sources: ERÚ-1 report form, OTE, a.s. 14, 6 3,5 12, 5 3, 1, 3 6, 2 4, 4, 3, 4, 6 3, 4 2, 2 1, 1 Karlovarský (KVK) Královéhradecký (HKK) 7, 25, 6, 2, 25 1, 2 3, 1, 6, , 5, 1, 5 2, Středočeský (STČ) Page 13 of 37 Ústecký (ULK) Olomoucký (OLK) 12, 8, Prague (PHA) , Plzeňský (PLK) 4 14, 4, 2, 6 Moravskoslezský (MSK) Liberecký (LBK) 5, 1 Pardubický (PAK) , 1,5 3 1, 1 2, Jihomoravský (JHM) 4 2, Jihočeský (JHČ) 6, 1, 1 2, 12 2,5 4 8, 5 Vysočina (VYS) Zlínský (ZLK)

14 4.5 Net electricity consumption in each RDS January 5,166, , ,8, , ,663, ,341, , ,271, ,377. 1,7, ,258, , , , , , , , , , , , RDSs HD_C at EHV HD_C at HV LD_B LD_H ČEZ Distribuce, a.s. HD_C at EHV HD_C at HV LD_B LD_H E.ON Distribuce, a.s. HD_C at EHV HD_C at HV LD_B LD_H PREdistribuce, a.s. HD_C at EHV HD_C at HV LD_B LD_H LDS Sever, spol. s r.o. HD_C at EHV HD_C at HV LD_B LD_H February 4,657, , ,984, , ,392, ,12, , ,218, , , ,13, , , , , ,6.6 4, , , ,251. 5, , March 4,821, , ,76, , ,436, ,16, , ,264, , ,65.9 1,177, , , , , , , , ,1. 128,28.9 5, , April 4,351, ,72. 1,959, ,65.5 1,174,61.6 2,821, , ,198, , ,89.8 1,49, , , , , , , , ,6. 114, , , May 4,248, , ,998, , ,4,54.2 2,729, , ,223, , , ,49, ,86. 53, , , , , , ,6. 15,92.3 5, , June 4,34, ,67.2 1,821, , ,9.1 2,579, ,43.8 1,46, , ,76.7 1,3, , , , , ,74.4 8, , ,2. 94, , , July 3,917, , ,819, , , ,514, ,89.8 1,8, , , , , , , , , , , ,9. 9, ,59.. 3, August 4,6, ,553. 1,919, , , ,623, ,58.3 1,153, , , , , , , , , , , ,2. 89,412. 4, , September 4,14, , ,958, , , ,69, , ,187, , , , , , , , , , , , , , , October 4,674, , ,23, , ,252, ,46, , ,234,9.1 49, ,73. 1,118, , , , ,8. 53, , , ,6. 126, , , November 4,943, , ,71, ,41.5 1,427,279. 3,215, , ,266, , ,39.7 1,187, , , , , ,679. 1, , ,. 143, , , December 5,53, ,47.3 1,894, ,55.8 1,78, ,268, , ,14, ,11.1 1,97, ,214, , , , , , , , ,5.8 16,28.8 4, , ,7, ,616, ,67, ,27, ,819, ,949, ,418, ,286, ,797,79.4 9,447, ,128,47.6 1,93, ,13, ,86,61.9 3,934, ,929, , ,245, ,142,44. 1,437, , ,32.7 1,39.2. Data sources: ERÚ-2 report form Structure of total consumption ČEZ Distribuce, a.s. net electricity consumption in each RDS (TWh) 6 Structure of total consumption E.ON Distribuce, a.s Structure of total consumption PREdistribuce, a.s ČEZ Distribuce, a.s E.ON Distribuce, a.s PREdistribuce, a.s LDS Sever, spol. s r.o. Page 14 of 37 Structure of total consumption LDS Sever, spol. s r.o.

15 5 Nuclear power plants and thermal power stations Nuclear power plants (NPP) Thermal power stations (TPS) Biomass Biogas Hard coal Brown coal Coke Waste heat liquid fuels solid fuels gases Fuel oils Natural gas 216 Gross electricity [GWh] 24,14.2 House load for electricity [GWh] 1,373.8 House load for heat production [GWh] 3. Net electricity [GWh] 22,73.4 Useful heat supply 45,74.1 2, , , , , , , , , , ,15, ,158,45. 16, ,83, ,9, ,22, ,62.1 2,881, ,231, , ,8,923.5 [GJ] 882,522. installed electrical capacity [MWe] installed thermal capacity [MWt] 4,29. 12,99. 1,85. 35,42.5 Data source: ERÚ-1 report form 27 Biomass Installed capacity (MW) Biogas Hard coal 12, Brown coal 1, Coke 8, Waste heat 6, liquid fuels 4, solid fuels 2, gases Fuel oils Natural gas Nuclear (NPP) Thermal (TPS) Všechna paliva (údaje před rokem 214 pouze v souhrnné podobě) Gross electricity (GWh), NPP 35, 3, 25, 2, 15, 1, 5, Nuclear (NPP) Gross electricity (GWh), TPS 6, 5, 4, 3, , , All fuels (pre-214 data only in aggregate) Page 15 of

16 6 Combined cycle plants Combined cycle plants (CC) Biomass Biogas Hard coal Brown coal Coke Waste heat liquid fuels solid fuels gases Fuel oils Natural gas 216 Gross electricity [GWh] 4, , ,54.8 House load for electricity [GWh] House load for heat production [GWh] Net electricity [GWh] 4, , ,32.7 Useful heat supply [GJ] 947, , ,72.9 installed electrical capacity [MWe] installed thermal capacity [MWt] 1, ,696.9 Data source: ERÚ-1 report form 27 Biomass Installed capacity (MW) Biogas Hard coal 1,6 Brown coal Coke 1,4heat Waste liquid fuels solid fuels 1,2 gases 1, Fuel oils Natural gas 8 paliva (údaje před rokem 214 pouze v souhrnné podobě) Všechna Gross (GWh) electricity 4,5 4, 3,5 3, 2, , , , data All fuels (pre-214 only in aggregate) Page 16 of

17 7 Gas fired power stations Gas fired power stations (GFPS) Biomass Biogas Hard coal Brown coal Coke Waste heat liquid fuels solid fuels gases Fuel oils Natural gas 216 Gross electricity [GWh] 3, , House load for electricity [GWh] House load for heat production [GWh] Net electricity [GWh] 3, , Useful heat supply [GJ] 6,664, , ,932, , , ,43,382.8 installed electrical capacity [MWe] installed thermal capacity [MWt] ,16.9 Data source: ERÚ-1 report form 27 Biomass Installed capacity (MW) Biogas Hard coal 1, Brown coal Coke 9 Waste heat liquid fuels 8 solid fuels gases 7 Fuel6 oils Natural gas 5 paliva (údaje před rokem 214 pouze v souhrnné podobě) Všechna Gross (GWh) electricity 4, 3,5 3, 2,5 2, , , All fuels (pre data only in aggregate) Page 17 of

18 8 Hydroelectric, including pumped storage, power stations installed capacity [MWe] 1, Hydroelectric power stations (HE) up to 1 MW from 1 MW inclusive to 1 MW from 1 MW inclusive Gross electricity 2,, , , , House load for electricity 17, , , ,384. Net electricity Electricity supply to the grid 1,982, ,898, , , , , , ,253.1 Shares of HE categories in gross electricity 24% 47% Data source: ERÚ-1 report form (over 1 MW), OTE, a.s.(up to 1 MW) Pumped storage hydroelectric (PSHE) installed capacity Gross electricity [MWe] 1, ,21,547.5 Electricity consumption for pumping 1,557, % Net electricity Electricity supply to the grid 1,185,74.2 1,214,26.6 Data source: ERÚ-1 report form Installed capacity, HE 27 up1,2 to 1 MW from 1 MW inclusive to 1 MW 1, from 1 MW inclusive 8 Všechny kategorie (údaje před rokem 214 pouze v souhrnné podobě) All categories (pre-214 data only in aggregate) Installed capacity (MW) 27 Všechny kategorie (údaje před rokem 214 pouze v souhrnné podobě) 1,1 up1,2 to 1 MW from 1 MW inclusive to 1 MW 1,151 MW inclusive from 1,5 1, Pumped storage (PSHE) , 2,5 2, , , Gross electricity (GWh), HE ,5 1, Gross electricity (GWh) Page 18 of Pumped storage (PSHE)

19 9 Wind power plants 216 installed capacity [MWe] Wind power plants (WPP) up to.5 MW inclusive over.5 to 1 MW inclusive over 1 to 2 MW inclusive over 2 MW Gross electricity House load for electricity 496, , , , , , ,721. Net electricity 488, , , , ,411.3 Shares of WPP categories in gross electricity Electricity supply to the grid 488, , , , , % Data source: OTE, a.s Installed capacity(mw) Všechny kategorie (údaje před rokem pouze v souhrnné 15podobě) Všechny kategorie (údaje před rokem pouze v souhrnné 244.7podobě) up to.5 MW inclusive over.5 to 1 MW inclusive 3 1 to 2 MW inclusive over over 2 MW 25 up2 to.5 MW inclusive over.5 to 1 MW inclusive over 1 to 2 MW inclusive 15 2 MW over 22% Gross electricity (GWh) % 2% All categories (pre-214 data only in aggregate) Page 19 of

20 1 Photovoltaic plants Photovoltaic plants (PV) up to 1 kw inclusive over 1 to 3 kw inclusive over 3 kw to 1 kw inclusive over 1 kw to 1 MW inclusive over 1 to 5 MW inclusive over 5 MW 216 installed capacity [MWe] 2, Gross electricity 2,131, , , , , ,44, ,699.6 House load for electricity 21, , , ,819. Net electricity 2,19, , , , ,81.6 1,34, ,88.6 Shares of PV categories in gross electricity Electricity supply to the grid 1,971, , , , ,4.6 1,24, , % 22% Data source: OTE, a.s Installed capacity (MW) Všechny kategorie (údaje před rokem 214 pouze v3.4 souhrnné podobě) up to 1 kw inclusive 2,5 over 1 to 3 kw inclusive over 3 kw to 1 kw inclusive over 1 kw to 1 MW inclusive over 1 to 5 MW inclusive 2, over 5 MW 1,5 21 2,5 2, % 7% 16% 49% Gross electricity (GWh) , up to 1 kw inclusive over 1 to 3 kw inclusive 1, over 3 kw to 1 kw inclusive over 1 kw to 1 MW inclusive over 1 to 5 MW inclusive 5 over 5 MW Všechny kategorie (údaje před rokem 214 pouze v1.8 souhrnné podobě) , All categories (pre-214 data only in aggregate) Page 2 of

21 11 Combined heat and power 216 CHP up to 1 MWe inclusive installed installed electrical thermal capacity capacity Gross electricity Combined heat and power (CHP) Biomass Biogas Hard coal Brown coal Coke Waste heat liquid fuels solid fuels gases Fuel oils Natural gas [GWh] 1, , [MWe] [MWt] CHP over 1 MWe to 5 MWe inclusive Gross electricity installed installed electrical thermal capacity capacity [GWh] 1, [MWe] [MWt] 1,35.7 Gross electricity CHP over 5 MWe installed electrical capacity [GWh] 7, , ,36.9 4, [MWe] 1,19.9 installed thermal capacity Gross electricity [MWt] 19,372.7 [GWh] 1, , , ,54. 4, ,485.8 CHP installed electrical capacity installed thermal capacity [MWe] 1,715.8 [MWt] 21,587.5 Data source: ERÚ-1 report form Share of installed electrical capacity in CHP Share of installed thermal capacity in CHP Shares of fuels in gross electricity in CHP (GWh) 8, 3% 3% 4% 6% 7, 6, 5, 4, 94% 3, 9% 2, 1, CHP up to 1 MWe inclusive CHP up to 1 MWe inclusive CHP over 1 MWe to 5 MWe inclusive CHP over 1 MWe to 5 MWe inclusive CHP over 5 MWe CHP over 5 MWe Page 21 of 37 CHP up to 1 MWe inclusive CHP over 1 MWe to 5 MWe inclusive CHP over 5 MWe

22 12 Generation from biomass 216 Gross electricity 2,67, , ,38.2 2, ,49, ,154.5 Biomass Briquettes and pellets Black liquor Liquid biofuels biomass Fuel wood Saw dust, bark, chips, wood waste Straw and other vegetable materials House load for electricity 19, , , , ,24.6 House load for heat production 36, , , , ,259.2 Net electricity Useful heat supply 1,877, , ,89.3 2, , ,13. [GJ] 14,225, , ,689, , ,656, ,249.6 Data source: ERÚ-1 report form Briquettes and pellets Celulozove výluhy Liquid biofuels Gross electricity (GWh) biomass Fuel wood 2,5 Saw dust, bark, chips, wood waste Rostlinné materiály neaglomerované Všechny kategorie (údaje před rokem 214 pouze v souhrnné podobě) 2, Briquettes and pellets Celulozove výluhy Liquid 1,5 biofuels biomass Fuel wood Saw dust, bark, chips, wood waste Rostlinné materiály neaglomerované 1, Shares of biomass categories in gross electricity % 5% % % All categories (pre-214 data only in aggregate) Page 22 of % %.1%

23 13 Generation from biogas 216 Gross electricity 2,6, , , ,389,554.4 Biogas Landfill gas Sewage sludge gas (WWTP) biogas House load for electricity 188,9.8 7, , ,161.2 House load for heat production 2, , ,951.6 Net electricity Useful heat supply 2,411, , , ,214,393.2 [GJ] 3,93, , , ,674,139.9 Data source: ERÚ-1 report form Landfill gas Sludge gas (WWTP) biogas Gross electricity (GWh) 3, kategorie (údaje před rokem 214 pouze v souhrnné podobě) Všechny 2,5 2, Shares of biogas categories in gross electricity % % ,5 1, 5 92% All categories (pre-214 data only in aggregate) Page 23 of

24 14 Gross electricity from renewable energy sources (RES) 27 3,393,59 1,1,845 1,77, ,98 1, , ,36 11,26 RES Small hydroelectric power stations up to 1 MW Hydroelectric power stations over 1 MW Wind power plants Photovoltaic Biogas Biomass BDMW 28 3,738, ,884 1,57, ,661 12, ,632 1,231,21 11, ,668,514 1,82,683 1,346, ,67 88,87 414,235 1,436,848 1, ,886,915 1,238,819 1,55, , ,72 598,755 1,511,911 35, ,247,54 1,17, , ,3 2,182,18 932,576 1,682,563 9, ,55,26 1,26,254 1,12, ,817 2,148,624 1,472,142 1,82,591 86, ,243,382 1,236,978 1,497,762 48,519 2,32,654 2,241,3 1,67,327 83, ,169,79 1,11, , ,544 2,122,869 2,566,699 2,7,39 87, ,422,95 1,1, ,1 572,612 2,263,846 2,614,188 2,9,855 86, ,395,45 1,53,1 947, ,957 2,131,455 2,6,546 2,67,443 98,561 Data sources: previous yearly reports, ERÚ-1 report form, OTE, a.s. (since 213) National gross consumption RES share [%]*) 72,45,2 4.71% 72,49, % 68,6, 6.81% 7,961,7 8.3% 7,516, % *) simple ratio of gross from RES and total domestic gross consumption 7,453, % 7,177, % 69,622, % 71,14, % 72,418, % Data sources: previous yearly reports, ERÚ-1, ERÚ-2, and ERÚ-3 report forms, OTE, a.s. Gross electricity from RES and its share of national gross consumption (TWh) % 13.17% 13.27% 12.97% 11.43% 12 14% 12% 1.28% 1 1% 8.3% 8 6 8% 6.81% 4.71% 6% 5.19% 4 4% 2 2% % Small hydroelectric power stations up to 1 MW Hydroelectric power stations over 1 MW Wind power plants Page 24 of Photovoltaic 214 Biogas 215 Biomass 216 BDMW RES share [%]*)

25 15 Development of installed capacity in the Czech electrical grid and breakdown by Region as at 31 December 216 [MW] 27 17,561. 3,76. 1, ,29. 1, CR Nuclear (NPP) Thermal (TPS) Combined cycle (CC) Gas fired (GFPS) Hydro (HE) Pumped storage (PSHE) Wind (WPP) Photovoltaic (PV) 28 17, ,76. 1, ,45.3 1, , ,83. 1, ,36.5 1, ,72.9 3,9. 1, ,56.1 1, , ,25. 3,97. 1, ,54.6 1, , , ,4. 1, ,69.2 1, , ,79.2 4,29. 1, ,82.7 1, , , ,29. 1, , ,8.4 1, , , ,29. 1, , ,87.5 1, , ,989. 4,29. 1,85. 1, ,9.2 1, ,67.9 Data sources: previous yearly reports, ERÚ-1 report form, OTE, a.s. NPP 4,29. 2, ,4.. CR Jihočeský Region Jihomoravský Region Karlovarský Region Královéhradecký Region Liberecký Region Moravskoslezský Region Olomoucký Region Pardubický Region Plzeňský Region Prague Středočeský Region Ústecký Region Vysočina Region Zlínský Region TPS 1, , , , , CC 1, GFPS HE 1, PSHE 1, WPP PV 2, ,989. 2, , , ,28.9 1, ,86.3 5, , Shares of installed capacity in the Czech grid in 216 1% 1% 2% 5% 5% 4% 6% 49% Data sources: ERÚ-1 report form, OTE, a.s. Installed capacity in the Czech electrical grid (MW), 31 December 216 Installed capacity in Czech Regions (MW), 31 December 216 6, 5, 4, 3, 2, 1, 25, 2, 15, 1, 5, Page 25 of 37

26 16.1 Cross-border physical flows [GWh] Net balance exports Exports at the TS level to Poland to Germany to Austria to Slovakia Exports at the DS level to Poland to Germany to Austria to Slovakia imports Imports at the TS level from Poland from Germany from Austria from Slovakia Imports at the DS level from Poland from Germany from Austria from Slovakia January , , , , , ,89.2 1, February -1,19.5-2, , ,99.7 1, March -1, ,64.4-2, , ,7.8 1, April -1, ,47.4-2, ,158. 1, May -1, ,74.6-2, June , , July , , August , , September ,61.4-1, , , October , , ,24.6 1, November , , , , December , , , , , , , , ,4.3-1, , , , , , Data sources: ERÚ-2 and ERÚ-3 report forms, data from selected LDS GWh Cross-border physical flows (GWh) 2, 1,5 1, 7,199.9 GWh 5-5 6,392.2 GWh -1, Net balance -1,974.4 GWh -1,5-2, -5,4.3 GWh -2, GWh -3, Exports at the TS level Imports at the DS level Exports at the DS level Net balance 9-8,986.1 GWh Imports at the TS level -1,255.1 GWh Page 26 of GWh