Post on 19-Jan-2016
ACCESS TO THE GRID
Vaida TamašauskaitėPower System Planning Division
Power System Development Department Lietuvos energija AB
Ryga, 3 July, 2006
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THE STRUCTURE OF POWER SECTOR IN LITHUANIA
• PRODUCTION• 3 production companies• 3 CHP of district heating companies• Few private mini HPP • Few industrial power plants
• DISTRIBUTION• Two distribution companies (one private)
• TRANSMISSON• One Transmission System Operator
company – Lietuvos Energija AB
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LEGISLATION
• Law on electricity• Law on energy• Law on construction• Law on public procurement• Law on territory planning• Rules for connection of new users• Rules for supply and use of electricity• Rules of exploitation of power plants and
electricity networks• Security rules on using electricity equipment• Rules for installation of electricity equipment• Order on promotion electricity energy
production using renewable resources• …….
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CONTRACTS OF NEW CONNECTIONS TO THE NETWORK
Transmission
Distribution Distribution
New User
UserUserUser User
Generation
New Conventional Generation
Generation
New Renewable Generation
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Admission fee = real expenses for the new connections and the increasing power demand
Distribution expenses between the market players
TYPE OF CONNECTION (EXISTING)
Transmission
Distribution
Distribution
New User
New ConventionalGeneration
100% 0%
60%
40%
100%0%
New Renewable Generation40%
60%
0%?
0%?
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TYPE OF CONNECTION (PLANNED NEW)
• Renewable generation (no changes);• New customer to the transmission (100% customer,
0% TSO);• New big customer to the distribution (40% customer,
60% DSO&TSO of all costs);• New small customer to the distribution (no
changes);• New generation (no changes);• New distribution substation (no changes for the
natural grow);• Reconstruction, cabling of overhead lines (no
changes).
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RULES, PRINCIPLES AND ADMISSION FEES FOR THE DISTRIBUTION NETWORK CONNECTION TO THE TRANSMISSION GRID
At the moment: NO detail Rules, NO principles, NO admission fees for the Distribution Network connection to the Transmission grid.
Have to be !
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PROBLEMS
• No detail rules and lack of secondary legislation about TSO and DSO interrelations;
• DSO don’t want to invest (forward investments to the TSO);
• Payment for connection to the grid based on the estimates of the technical design project (risk of loss or win);
• Private DSO. Different view, different values, different point of view to the customers;
• Not legally constructed generators (no requirements from TSO, don’t want to pay for reserve).