Naslov
IS ECONOMICS LOSING BREATH IN POWER SYSTEM?

Autori
Slipac, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, stručni

Izvornik
Book of Abstracts of International Conference on Economics of Decoupling (ICED) / Družić, Gordan - Zagreb : Ekonomski fakultet Sveučilišta u Zagrebu, 2020, 26-26

Skup
International Conference on Economics of Decoupling (ICED)

Mjesto i datum
Zagreb, Hrvatska, 02.12.2020. - 03.12.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Recenziran

Ključne riječi
power system, economics, renewables, Least cost planning

Sažetak
Power system is the most complex contemporary technical systems. It has been developed for almost a hundred years. Mathematical models used to describe power system have been developed simultaneously with technical development. Some of them were those used to shape the development of power system. Such mathematical models were formulated through the objective function, which contains all fixed and variable costs of generation, transmission and distribution as well as costs of investment into new generation, transmission and distribution facilities. The solution of objective function was the lowest total costs of power system i.e. Least cost planning. The period of concept of the Least cost planning ended with the introduction of electricity market. In the last decades of a hundred-year development of power system there was an intensive shift of acceptable technologies for electricity generation towards renewables to lower CO2 emission. Electricity generation incentive system was promoted since those technologies were not market-effective or economic. Today, after decades of development, these technologies have become economic. However, after major construction of windfarms and solar power plants, we learned that the generation characteristics of those technologies have a significant effect on power system regarding necessary additional reserve capacities as well as balancing capacities to maintain security of supply. Technologies for storing electricity appeared, for instance batteries, which marks an additional cost. In order to intensify the construction of renewable energy sources CO2 emission tax was introduced, not being a market mechanism, but a political instrument, which is also an additional cost. The construction of small sized solar power plants has been intensified, which is not economic and entails additional cost for distribution system. There are some new technological solutions such as hydrogen generated from electricity, to be later used for electricity generation. This can be, and probably is, ecologically justified, but it is hardly economic (without incentives). If we analyse the whole power system today, we notice that the transition towards imaginary power system with zero CO2 emission is beyond the logic of the law of economy. If it is really the case, why it is?

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Ekonomija

POVEZANOST RADA