Open AccessAn expansion planning method for extending distributed energy system lifespan with energy storage systems
Author(s) -
Said Mirza Tercan,
Onur Elma,
Erdin Gökalp,
Ümit Cali
Publication year - 2021
Publication title -
energy exploration and exploitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 30
eISSN - 2048-4054
pISSN - 0144-5987
DOI - 10.1177/01445987211058304
Subject(s) - distributed generation , upgrade , energy storage , renewable energy , intermittent energy source , distributed data store , electrification , electric power system , grid , reliability engineering , pumped storage hydroelectricity , computer science , engineering , automotive engineering , electrical engineering , distributed computing , power (physics) , electricity , operating system , physics , geometry , mathematics , quantum mechanics
The recent advances in the modern power grids, such as growing energy demand and penetration of higher amounts of distributed energy generators like renewable energy resources, caused additional grid integration challenges for the distributed energy system operators. Besides, deep electrification impacts triggered by a growing share of electric vehicles as additional electric loads made it essential for the distributed energy system operators to re-investigate their upgrade plans in terms of distributed energy system lines and corresponding infrastructure investments. An energy storage system offers the opportunity to use energy flexibly, resulting in deferring the inevitable upgrade costs of the distribution grid elements and increasing the power quality. In this study, a new method is proposed to extend the lifespan of distributed energy systems with an energy storage system and reduce line upgrade costs. The proposed method is tested on the IEEE-33 with different case studies. The findings of this study indicated that the investigated energy storage option has a positive impact on the distributed energy system components and assets in terms of extending their lifespan and helping to mitigate growing demand peaks because of the load increase. According to the results, the proposed method reduces the total cost by up to 66%. Furthermore, the power losses are reduced by an average of 34.8%, and the voltage profiles are improved with the energy storage system.