Table 1 Overview of the employed techniques in enhancing HRES.

From: Techno-economic optimization for isolated hybrid PV/wind/battery/diesel generator microgrid using improved salp swarm algorithm

Refs.

Year

Location

Microgrid System

Techniques/Tool

Objective Function

Strength

Weakness

25

2020

Aljouf, Saudi Arabia

PV/WT/BESU/DG

PV/BESU/DG

WT/Battery/DG

SSO, GWO, HHO, MVO, WOA and ALO

COE

A clear and detailed research with several results

This study has limited constraints, and the suggested SSO could be explored more

27

2020

Yobe State, Nigeria

PV/WT/BESU/DG

PSO, CSA, GOA

MOGOA

COE

COE/DPSP

Application of single-objective and multi-objective methods

(GOA and MOGOA)

The proposed study doesn't analyze different architectures, and it doesn't compare MOGOA to other algorithms

28

2021

Dakhla, Morocco

PV/WT/BESU/DG

EO, HHO, GWO, AEFA, and STOA

NPC

Apply a novel meta-heuristic optimization algorithm with many constraints

There weren't many different architectures or configurations analyzed

29

2021

Sousse, Tunisia

PV/WT/BESU/DG

RG

TNPC/EC

Real weather data are considered

Algorithm comparison is needed to make sure that the RG algorithm can give the best results

30

2022

Yalova, Turkey

PV/WT/BESU/DG

HS, HOMER, ACO and Jaya

ACS

Simple and clear research

The sensitivity analysis is not included

31

2023

Sønderborg, Denmark

PV/WT/BESU/DG

MOMFO, NSGA-II, MOPSO, and MOSEO

LCOE/LPSP

The Taguchi method is employed to establish the upper limits of the model's decision variables, while a fuzzy decision-making approach is utilized to acquire the optimal Pareto front

In the proposed scenarios, areas with varying topography can be included in order to improve the accuracy of the decision-maker's analysis, particularly when solar radiation and wind speed are low

32

2023

Jiuduansha, China

PV/WT/BESU/DG

PV/BESU/DG

WT/BESU/DG

PV/WT/BESU

HPSODE-FAM, ABC, GA, PSO, and DE

LCOE/LPSP/HDI

A tri-objective function, which incorporates LCOE, LPSP, and HDI, and two strategies for managing energy are implemented

The REF is not considered in the constraints

33

2022

Djelfa, Algeria

PV/WT/BESU/DG

MOSSA, MOGOA, MODA, and MOALO

COE/LPSP

Application of a new meta-heuristic optimization algorithm

The MOSSA could be further explored with different configurations of HMS

34

2023

Tunisia

PV/WT/BESU/Hydraulic

NSGA-II

LPSP/COST

Multi-objective optimization using an evolutionary algorithm in a remote location

The results obtained are not compared to any other algorithms

35

2023

Khartoum, Sudan

PV/WT/BESU/DG

MILP (Gurobi, Python)

NPC/LPSP

Integration Three different solar tracking systems were utilized with a fixed system of PV panels to gain maximum power

The algorithm's application is unclear, and it needs to be compared with other algorithms to get the best results

36

2023

Ramnicu Valcea, Romania

PV/WT/BESU/DG

PV/WT/BESU/FC

PV/WT/BESU

HOMER, iHOGA

COE/NPC

HOMER and iHOGA simulate hybrid system performance. Both programs examine the economic and environmental outlook

The results obtained by applying HOMER and iHOGA are not compared to the meta-heuristic algorithms

37

2023

Basra, Iraq

PV/WT/Biomass/BESU/DG

GWCSO, PSO, GA, GWO, CSO, and ALO

ANC/LCOE

Applied a new hybrid meta-heuristic optimization algorithm named GWCSO

This research does not account for reliability, which might decrease the design system's credibility