Capacity market: Opportunities and threats for no-RES owners

Dosadašnji razvoj internog tržišta EU (eng. Internal market) razvijao se kao tržište „samo energija“ (eng. Energy only). Postojanje samo takvog tržišta pokazuje određene nedostatke. Prije svega je tu problem fleksibilnosti proizvodnog miksa na kratki rok kao i adekvatnost proizvodnje na dugi rok. Sve veći broj članica EU, ali i ostalih država u svijetu, raspravljaju o uvođenju tržišta kapacitetom. Tržište kapacitetom predstavlja ono tržište kojim se, uz određenu tržišnu naknadu, osigurava dovoljna snaga u određeno vrijeme. Snaga i vrijeme parametri su koji se predviđaju za budućnost, a predstavljaju najnepovoljniji trenutak za elektroenergetski sustav. U okviru ovog diplomskog rada, pregledom literature, opisane su vrste tržišta kapaciteta s pripadajućim prednostima i manama. Iz perspektive vlasnika konvencionalnih elektrana, identificirani su poticajni faktori kao i problemi u svezi s tržištem kapaciteta te utjecaj na tržište „samo energija“. Također je ispitano kako na izabrani model tržišta kapaciteta utječu tržišta susjednih zemlja. Za modeliranje tržišta kapaciteta korišten je programski alat PLEXOS.Former development of EU internal market evolved as a “energy only” market. The existence of such kind of market shows certain shortcomings. First of all there is a problem of the flexibility of generation mix in the short term as well as the adequacy of production in the long term. An increasing number of EU member states, and other countries in the world, started to discuss the implementation of capacity markets. The capacity market represents a kind of market which, with proper financial compensation, provides sufficient power at a certain time. The power and time are parameters to be foreseen for the future, and represent the most unfavorable moment for the power system. In the scope of master thesis, with usage of the available sources of information, capacity market evaluation has been made. Types of market facilities with associated advantages and disadvantages are described. From the perspective of the owners of conventional power plants, it was necessary to identify stimulating factors and problems related to market capacity and the impact on the “energy only” market. It’s also examined how the chosen model of capacity remuneration mechanism affects on power markets of neighboring countries. Croatian power system and implemented capacity market are modeled using PLEXOS software