Cost-Benefit Analysis of Solar Thermal Plants with Storage in a Hydrothermal System

被引：4

作者：

Trama, Cibelle Pereira ^{[1
]}

Pereira Junior, Amaro Olimpio ^{[1
]}

Cardoso Guimaraes, Ana Paula ^{[2
]}

Diniz, Andre Luiz ^{[2
]}

Reis Vieira, Leonardo dos Santos ^{[2
]}

机构：

[1] Fed Univ Rio de Janeiro PPE COPPE UFRJ, Alberto Luiz Coimbra Inst Grad Studies & Engn Res, Energy Planning Program, BR-21941914 Rio De Janeiro, RJ, Brazil

[2] Elect Energy Res Ctr CEPEL, BR-21941911 Rio De Janeiro, RJ, Brazil

来源：

ENERGIES | 2021年 / 14卷 / 18期

关键词：

concentrated solar power; thermal energy storage; levelized cost of electricity; energy value; net cost of electricity; hydrothermal system; POWER CSP; TECHNOLOGIES; WIND;

D O I：

10.3390/en14185662

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Economic feasibility studies of concentrated solar power (CSP) plants with thermal energy storage (TES) systems have been mainly based on the levelized cost of electricity (LCOE), disregarding the economic benefits to the electricity system resulting from the dispatchability of the CSP plants. The analysis of these benefits is essential since the existence of storage can provide greater operating flexibility to the system. Although there are few studies on the benefits of CSP plants in thermoelectric systems, this analysis has not yet been done in a predominantly hydroelectric system. In this paper, CSP plants with TES systems were inserted in a hydrothermal system in order to estimate the economic benefits and the net cost of electricity generated by those plants. The System Advisor Model (SAM) and the hydrothermal scheduling model DESSEM were used in a real case study of inclusion of CSP plants in the Brazilian system. The results indicate that the cost of a CSP plant, previously estimated by the LCOE, can be reduced by at least 37% when considering its benefits to a hydrothermal system, increasing its competitiveness with other technologies. Therefore, we propose the use of the net cost for an appropriate comparison among energy sources.

引用

页数：26