South Africa’s
energy industry,
in focus.

Energy Storage System Challenges

20.3% of this theme group

Researchers discuss barriers and impacts of various storage technologies for future power grids.

Energy storage (628) · Renewable energy (327) · Environmental economics (102) · Energy (111)

Comparative Review of Energy Storage Systems, Their Roles, and Impacts on Future Power Systems

A Comprehensive Review on Energy Storage Systems: Types, Comparison, Current Scenario, Applications, Barriers, and Potential Solutions, Poli

Battery Electrode Material Issues

17.0% of this theme group

Studies highlight difficulties in developing reliable anode and cathode materials for rechargeable batteries.

Anode (362) · Cathode (269) · Energy storage (330) · Battery (225)

Developing Cathode Materials for Aqueous Zinc Ion Batteries: Challenges and Practical Prospects

Advances of lithium-ion batteries anode materials—A review

Lithium and Flow Battery Limits

15.3% of this theme group

Papers examine performance ceilings and safety concerns of lithium‑ion and flow battery technologies.

Battery (397) · Energy storage (351) · Lithium (99) · Flow battery (40)

Electrical energy storage for transportation—approaching the limits of, and going beyond, lithium-ion batteries

<scp>High‐Energy</scp> Lithium‐Ion Batteries: Recent Progress and a Promising Future in Applications

Electrolyte Design Obstacles

12.2% of this theme group

Research points to challenges in creating stable, high‑conductivity electrolytes for advanced batteries.

Electrolyte (356) · Fast ion conductor (49) · Lithium (115) · Electrochemistry (107)

Electrolyte-Additive-Driven Interfacial Engineering for High-Capacity Electrodes in Lithium-Ion Batteries: Promise and Challenges

Advanced Electrolyte Design for High‐Energy‐Density Li‐Metal Batteries under Practical Conditions

Renewable Grid Integration Hurdles

12.0% of this theme group

Analyses focus on technical and operational problems when coupling renewables with electric power systems.

Renewable energy (264) · Photovoltaic system (94) · Grid (74) · Electricity (73)

A Review of Hybrid Renewable/Alternative Energy Systems for Electric Power Generation: Configurations, Control, and Applications

Electric vehicles with renewables integration in electrical power systems: A review of technologies, uncertainties and optimization allocati

Supercapacitor Material Constraints

11.9% of this theme group

Works address limitations of nanostructured materials for high‑performance electrochemical capacitors.

Supercapacitor (235) · Nanotechnology (196) · Energy storage (329) · Electrochemical energy storage (78)

Flexible and Stretchable Energy Storage: Recent Advances and Future Perspectives

Review on Carbon Nanostructures for Supercapacitors: Cutting-Edge Energy Storage Applications and Perspectives

Hydrogen and Thermal Storage Barriers

11.4% of this theme group

Literature outlines technical and economic obstacles to large‑scale hydrogen and thermal energy storage.

Hydrogen storage (134) · Hydrogen (80) · Thermal energy storage (83) · Energy storage (226)

Hydrogen Storage Technologies for Future Energy Systems

Chemical‐based Hydrogen Storage Systems: Recent Developments, Challenges, and Prospectives

Economic Viability of Storage

22.0% of this theme group

Authors caution that cost assessments often reveal limited financial returns for storage deployments.

Energy storage (178) · Renewable energy (112) · Environmental economics (32) · Electricity (51)

Development of Energy Storage Systems for Power Network Reliability: A Review

A Quantitative Assessment of the Economic Viability of Photovoltaic Battery Energy Storage Systems

Stability Risks of Renewable Integration

18.2% of this theme group

Studies warn of potential power system instability arising from high shares of variable renewables.

Renewable energy (125) · Photovoltaic system (63) · Grid (52) · Electricity (48)

Impacts of Renewable Energy Integration on Power System Stability

Integrating Variable Renewable Energy Into the Grid: Key Issues

Thermal Storage Material Uncertainties

17.0% of this theme group

Research highlights gaps in material performance data for large‑scale latent‑heat storage systems.

Thermal energy storage (79) · Energy storage (111) · Thermal (23) · Latent heat (12)

Sorption heat storage for long-term low-temperature applications: A review on the advancements at material and prototype scale

Review of Thermal Energy Storage Materials for Application in Large-Scale Integrated Energy Systems—Methodology for Matching Heat Storage So

Alternative Battery Chemistry Concerns

15.4% of this theme group

Papers raise safety and durability questions for emerging sodium‑ion and solid‑state battery designs.

Anode (82) · Cathode (72) · Electrolyte (84) · Lithium (40)

Electrode Materials for Rechargeable Sodium‐Ion Batteries: Potential Alternatives to Current Lithium‐Ion Batteries

From Lithium‐Metal toward Anode‐Free Solid‐State Batteries: Current Developments, Issues, and Challenges

Nanostructured Supercapacitor Risks

12.0% of this theme group

Analyses point to reliability and scalability issues in novel nanomaterial‑based capacitors.

Supercapacitor (38) · Capacitance (13) · Electrochemistry (30) · Nanotechnology (17)

Progress and Perspectives on Promising Covalent‐Organic Frameworks (COFs) Materials for Energy Storage Capacity

Conductive Gels for Energy Storage, Conversion, and Generation: Materials Design Strategies, Properties, and Applications

Thermal Runaway and Safety

9.9% of this theme group

Works emphasize the need for better understanding of abuse behavior and failure modes in batteries.

Battery (91) · Thermal runaway (12) · Energy storage (49) · State of charge (10)

Studying Abuse Testing on Lithium-Ion Battery Packaging for Energy Storage Systems

Recent Advances in the Development of Li‐Air Batteries, Experimental and Predictive Approaches – Prospective, Challenges, and Opportunities

Flow Battery Efficiency Limits

5.5% of this theme group

Studies caution about electrolyte imbalance and operational losses that reduce flow battery performance.

Flow battery (46) · Redox (33) · Vanadium (24) · Electrolyte (22)

Vanadium redox flow battery capacity loss mitigation strategy based on a comprehensive analysis of electrolyte imbalance effects

Experimental Study on the Effect of Operating Conditions on the Efficiency of Vanadium Redox Flow Battery

Optimizing Storage for Renewable Grids

23.0% of this theme group

Research explores strategies to enhance reliability and efficiency of storage in renewable‑rich power systems.

Energy storage (1,114) · Renewable energy (356) · Energy (198) · Wind power (169)

Battery Energy Storage Optimization in Distribution Power Systems with Distributed Renewable Energy Resources

Design and Control of an Energy Storage System for Hybrid Renewable Energy Systems

Advanced Electrolyte‑Electrode Interfaces

22.7% of this theme group

Papers propose new electrolyte formulations that improve stability and capacity of next‑generation batteries.

Cathode (418) · Electrolyte (470) · Anode (402) · Electrochemistry (347)

Phosphated Electrolyte Enabling Dual Robust Electrode–Electrolyte Interfacial Reconstruction Toward Capable Zn Metal Batteries

Sustainable High‐Performance Aqueous Batteries Enabled by Optimizing Electrolyte Composition

High‑Dielectric Ceramic Energy Storage

15.1% of this theme group

Works investigate ceramic and ferroelectric materials for compact, high‑energy‑density storage devices.

Dielectric (122) · Energy storage (502) · Ceramic (64) · Ferroelectricity (43)

Development of <scp>PVDF</scp> / <scp>PMMA</scp> ‐Cu nanocomposites with enhanced dielectric properties and energy storage density for capac

Advanced carbon nanomaterials for high-performance energy storage technologies

Hybrid Renewable‑Battery System Design

13.9% of this theme group

Studies develop models and controls for integrated solar, wind, and storage solutions.

Renewable energy (356) · Photovoltaic system (242) · Electricity (116) · Battery (193)

Optimizing Power System Reliability and Carbon Emissions With a Fuzzy Unit Commitment Model Incorporating Renewable Energy, Load Forecast Er

Distributed scheduling for multi-energy synergy system considering renewable energy generations and plug-in electric vehicles: A level-based

Graphene‑Based Supercapacitor Hybrids

10.1% of this theme group

Research highlights graphene electrodes that combine rapid charge with high energy storage.

Supercapacitor (526) · Capacitance (273) · Electrode (176) · Graphene (76)

A high-performance supercapacitor-battery hybrid energy storage device based on graphene-enhanced electrode materials with ultrahigh energy

A review of supercapacitors: Materials, technology, challenges, and renewable energy applications

Microgrid Energy Management

7.7% of this theme group

Papers present optimization methods for storage‑enabled microgrids with distributed generation.

Microgrid (331) · Energy storage (270) · Renewable energy (179) · Distributed generation (56)

Power Management of Hybrid Microgrid with Energy Storage System

Capacity Optimization of Battery Energy Storage Systems in a Microgrid

Nano‑Enhanced Phase‑Change Storage

7.5% of this theme group

Works focus on hybrid phase‑change materials that boost thermal storage efficiency.

Thermal energy storage (267) · Thermal (84) · Phase-change material (65) · Latent heat (39)

Advances in nano-enhanced phase change materials and hybrid thermal energy storage systems: Paving the way for sustainable energy solutions

Improving the efficiency of thermal energy storage through the development and evaluation of hybrid nano-enhanced phase change materials

Johannesburg

31.8% across the displayed hubs

3 companies hiring · $164.6M disclosed funding

Cape Town

29.0% across the displayed hubs

4 companies hiring · $77.8M disclosed funding

Pretoria

11.3% across the displayed hubs

2 companies hiring · $0 disclosed funding

Sandton

8.3% across the displayed hubs

0 companies hiring · $140.0M disclosed funding

Midrand

6.4% across the displayed hubs

1 companies hiring · $0 disclosed funding

Centurion

4.7% across the displayed hubs

0 companies hiring · $106.8M disclosed funding

Durban

4.5% across the displayed hubs

0 companies hiring · $0 disclosed funding

Randburg

4.0% across the displayed hubs

0 companies hiring · $0 disclosed funding