View
26
Download
2
Category
Preview:
DESCRIPTION
Operátor trhu s elektřinou , a. s. - The Czech Electricity Market Operator. Faculty of Electrical Engineering Czech Technical University in Prague. The Renewable Energy Sources and their Role in the Power Energy System. Prof. Ing. Ji ř í T ů ma, DrSc . Ing. Miloslav Fialka - PowerPoint PPT Presentation
Citation preview
11-15 November 2007, Italy
WEC 2007
The Renewable Energy Sources and their Role in the Power Energy System
Ing. Igor Chemišinec, Ph.D.OTE – The Czech Electricity Market Operator
Operátor trhu s elektřinou, a. s. -
The Czech Electricity Market Operator
Faculty of Electrical Engineering
Czech Technical University in Prague
Prof. Ing. Jiří Tůma, DrSc.
Ing. Miloslav Fialka
Fac. of El. Engineering, CTU in Prague
Czech Republic
Page: 2
CTU in PragueCTU in Prague
AGENDA
The role of renewable energy sources (RES) in the Czech State Energy Conception
Economical support for renewable energy sources in the Czech Republic
Technical aspects of the operation RES Conclusion
Page: 3
CTU in PragueCTU in Prague
AGENDA
The role of renewable energy sources (RES) in the Czech State Energy Conception
Economical support for renewable energy sources in the Czech Republic
Technical aspects of the operation RES Conclusion
Page: 4
CTU in PragueCTU in Prague
The Czech State Energy Conception
The Energy Sector - significant impact on the environment levelSustainable development The global problem of the world is to ensure it It is impossible to express it in an empiric way its definition is a result of experts discussions and agreements
The Czech Republic is aware responsibility for creating of conditions for reliable and long-term safe supply of energy at the acceptable prize and at creating conditions for its effective utilizations, which will not threaten the environment and will be in accordance with policy of sustainable development State
Energy Conception State Energy Conception creates the balance between energy market and reliable energy supply, environment protection and support of research and
development.
Page: 5
CTU in PragueCTU in Prague
The Czech State Energy Conception The SEC's main goals
Independence SafetySustainable
development
… on the imported primary energy sources
… on the imported primary energy sources from unreliable countries
… on the reliability of the primary energy sources
supply
energy system decentralization
reliability of the energy supply
… of energy sources, incl. nuclear safety
economy & social development
environment protection
Proceedings for reduction of energy import dependence:-increase of energy effectiveness-support of renewable sources -extension of operational life of domestic potential reserve of solid fuel
Page: 6
CTU in PragueCTU in Prague
The Czech State Energy Conception
The Czech Republic has to perform following long- time goals:1. to fulfil of EU strict emission limits in 2010 (i.e. SO2 265 000 tons, NOx 286 000
tons)2. to fulfil of international obligations from Kjoto protocol and from another
agreements fixed on it.3. to create conditions for higher use of renewable energy sources- determination
and performance of the national indicative intent of electricity production from RES due to gross electricity consumption (8% for year 2010).
4. to create conditions for progressive rise rate of renewable energy sources in domestic consumption of primary energy sources in 15 - 16% for year 2035.
5. to create conditions for higher use of secondary raw energy sources and for rise of the rate of alternative fueling in transportation.
Higher support intent of the renewable sources usage was observed in the State Energy Conception
Page: 7
CTU in PragueCTU in Prague
The role of renewable energy sources (RES) in the Czech State Energy Conception
0
2
4
6
8
10
12
14
16
2000 2005 2010 2015 2020 2025 2030
(TW
h)
Biomass Small hydroelectric power station Wind Photovoltaic Biogas
Production of electricity from RES
Page: 8
CTU in PragueCTU in Prague
AGENDA
The role of renewable energy sources (RES) in the Czech State Energy Conception
Economical support for renewable energy sources in the Czech Republic
Technical aspects of the operation RES Conclusion
Page: 9
CTU in PragueCTU in Prague
Economical support for renewable energy sources in the Czech Republic
Two supporting systems: form of redemption prices form of green bonuses
Electricity producers can choose from these two support systems, whereas they can not combine the support manner
Page: 10
CTU in PragueCTU in Prague
Redemption prices enforced for electricity supplied and measured
in transfer point of production and network of operator related distribution (transmission) system
comes into accounting of subject of settlements responsible for losses in regional distribution (transmission) system
Page: 11
CTU in PragueCTU in Prague
Green bonuses enforced for electricity supplied and
measured in transfer point of production and network of regional distribution (transmission) system operator
and supplied to electricity salesman by producer or to authorized consumer and then for another own electricity consumption
gives to producer possibility of choice of the selling (price) of produced energy to any final consumer or salesman
Page: 12
CTU in PragueCTU in Prague
Review of feed-in tariffs and green bonuses for chosen technology in the Czech Republic
Page: 13
CTU in PragueCTU in Prague
Renewable energy sources and electricity prices
Process of the rate of final consumers on the coverage ancillary expenses
*change of the calculation method, instead presumption production used
reality for previous period
Page: 14
CTU in PragueCTU in Prague
Influence of the support RES on the electricity price in the Czech Republic
Electricity 48,13%
Distribution40,66%
Transmission3,39%
System services ČEPS6,21%Decentralized
generation0,30%
Renewable source and CHP
1,12%
Market operator OTE
0,18%
Share of price components on prices paid by end customers for low voltage level (NN) in 2006 (without VAT)
Page: 15
CTU in PragueCTU in Prague
AGENDA
The role of renewable energy sources (RES) in the Czech State Energy Conception
Economical support for renewable energy sources in the Czech Republic
Technical aspects of the operation RES Conclusion
Page: 16
CTU in PragueCTU in Prague
Renewable energy sources and power system
GG GG
transmission system
distribution network
distribution network
distribution network
consumption consumption consumption
G G
conventional plants
RES
• DSO/TSO has obligation prior to connect RES to given part of the distribution system• but this connection and operation of RES have influence over distribution system
It is necessary to do consultations with DSO/TSO, for purpose of solving questions, concerned about choice of connection place, technical conditions, connection type and especially operation.
Page: 17
CTU in PragueCTU in Prague
The most important influences of operation RES
operation of renewable
energy sources
island in a power system
control of active and reactive power
impact on stability of
power system
metering and regulation
quality of electricity
protectivereliability of
supply
electro- magnetic effects
harmonics of voltage and
currentflikr
impact on frequency
The connection and operation of RES must fulfill minimum of technical, plans, operation and information requirements, which are lay dawn in “Grid Code” of DS or TS.
Page: 18
CTU in PragueCTU in Prague
Conclusion Importance of the State Energy Conception Big attention is given to Renewable Energy Sources Electric energy originating from renewable energy sources can
not economically compete with electric energy from classic energy sources
The principles of support of these energy sources and their influence on the power cost by final consumers were described.
The connection and operation of RES have influence over distribution/transmission system
Main focus has to be given to the role of renewable energy sources in connection to reliability and security of the electric energy supply and its quality.
Page: 19
CTU in PragueCTU in Prague
Ing. Igor Chemišinec, Ph.D.ichemisinec@ote-cr.cz
Ing. Miloslav Fialka miloslav.fialka@eru.cz
Thank You for your attention!
http://www.ote-cr.czhttp://k315.feld.cvut.cz
Prof. Ing. Jiří Tůma, DrSc.tuma@feld.cvut.cz
Recommended