TY - JOUR
TI - Marginal share of renewable energy sources of variable electricity generation: A contribution to the concept definition
AU - Grković Vojin R
JN - Thermal Science
PY - 2015
VL - 19
IS - 2
SP - 383
EP - 396
PT - Article
AB - Technology development is a keystone within the efforts toward enabling  longer duration of the world fossil energy resources. The past development  and the technologies applied, cause huge emissions of СО2 that must be  significantly reduced. Increased usage of renewable energy sources for  electricity generation (RES-e) contributes essentially to the reduction of  CO2, but on the other hand, under current conditions of feed-in priority  reduces also the market for the electricity from fossil fuelled power plants  (FFPP). The other possibility for reduction of CO2 emissions is to apply  carbon capture and storage technologies as a part of overall FFPP  technologies. A hypothesis presented in this paper is that there is a  marginal share of RES variable electricity in overall annual electricity  supply after which further increase of RES-e participation produces higher  average electricity generated cost, than in the case of CO2 emission  reduction by applying CCS technologies. The presented work confirms this  hypothesis. Value of the marginal share depends to the price of RES-e  feed-in. With the price span from 13.5 to 7.5€c/kWh, the marginal share is  under 50%.