Table 1 Summary of HRES optimization studies across various regions.

From: Techno-economic and environmental analysis of a fully renewable hybrid energy system for sustainable power infrastructure advancement

Ref.

Location

Mode

Method

System components

Storage

Outcomes

33

Morocco

Grid-connected

HOMER

PV/WT/PHES

PHES

An optimized HRES is designed for rural electrification in Morocco; however, energy reliability and socio-economic and environmental impacts are overlooked.

34

 

Off-grid

MATLAB

PV/WT/BG/BESS

BESS

A HES is optimized, reducing the total annual cost; however, resource uncertainty and long-term performance are not comprehensively analyzed.

35

Turkey

Grid-connected

MATLAB

PV/WT/BESS & PV/WT/EFCS

BESS & EFCS

A PSO-GA hybrid is presented for HRES optimization, with a PV/WT/BESS system identified as cost-effective, excluding economic feasibility, long-term performance, resource variability, and environmental impacts overlooked.

36

Egypt

Off-grid

MATLAB

PV/WT/DG/BESS

BESS

An Improved Archimedes Optimization Algorithm for HRES is introduced; however, critical factors such as weather variability and environmental impacts are neglected.

37

Jordan

Off-grid/grid-connected

HOMER Pro

Grid/PV/WT/FES/BESS & PV/WT/BG/BESS

BESS & Flywheel

HRES is evaluated for Jordan using HOMER Pro, and an optimal WT/PV/grid/BESS configuration is identified. Nonetheless, long-term environmental impacts and dynamic resource variability are not considered.

38

Sweden

Off-grid

MATLAB

PV/WT/BESS & PV/WT/PHES

BESS & PHES

PV/WT/BESS is identified as cost-effective for stand-alone applications in Sweden; however, environmental impact and scalability analyses are lacking, highlighting the need for advanced optimization and storage technology research.

39

China

Off-grid

MATLAB

PV/BESS & PV/DG/BESS

BESS

Hybrid DG/PV/BESS is optimized, achieving cost reductions. Yet, lifecycle assessments, scalability, and broader adaptability are lacking.

40

India

Off-grid

HOMER

WT/BESS, PV/BESS, PV/WT/BESS, WT/DG/BESS, PV/DG/BESS & PV/WT/DG/BESS

BESS

PV/WT/DG/BESS is identified as the optimal HRES for Ghoramara Island, achieving a low LCOE. However, the lack of advanced storage solutions indicates a necessity for improved adaptability and sustainability.

41

Brazil

Off-grid

HOMER Pro

PV/WT/BESS

BESS

A PV/WT/BESS hybrid system is assessed for Casa Nova, Brazil, identified as the most cost-effective. Yet, advanced storage options, lifecycle impact analysis, and scalable designs remain unaddressed.

42

Nigeria

Off-grid

HOMER & GOA

PV/WT/DG/Hydro/BESS, PV/WT/DG/BESS, PV/DG/BG/BESS, DG/BG

BESS

HRES is optimized for rural areas using HOMER and GOA, with biogas/diesel identified as the most cost-effective. However, advanced storage integration and scalability for real-world conditions are lacking, limiting broader applicability and resilience.

43

Chad

Off-grid

HOMER

PV/BESS, PV/DG/BESS & PV/WT/DG/BESS

BESS

PV/DG/BESS is identified as cost-effective for Chad, but advanced storage, dynamic modeling, environmental impact analysis, and broader renewable integration are omitted, limiting adaptability and sustainability.

44

Malaysia

Off-grid

HOMER

PV/DG/BESS

BESS

Hybrid PV/DG/BESS offers optimal reliability, cost, and environmental performance, reducing fuel use and emissions, but lacks advanced storage, sustainability analysis, and technology integration.

45

Iran

Off-grid

MATLAB

PV/DG/BESS

BESS

Five improved PSO algorithms are developed for optimizing a stand-alone system; however, the study lacks environmental impact analysis, advanced storage technology integration, and consideration of broader applicability.