Dr. Massimo Guarnieri, E-Storage Engineering | Energy Tech Review | Top Energy Storage Solutions Providers in EuropeDr. Massimo Guarnieri, CEO
Hitting the energy efficiency bull’s eye for cleaner and greener operations is no longer a distant goal.

In the modern energy landscape, where technological advances meet global urgency, E-Storage Engineering has created a foothold in storage systems as a specialist in electrochemical solutions. By integrating innovations with a forward-thinking approach, it delivers advanced, long-term energy storage solutions to various industries.

E-Storage Engineering is the only design company in Italy that has adopted an engineering systems methodology for energy storage development. Its reputation has attracted collaborations with prestigious institutions like MIT and leading researchers worldwide. The company’s engineering principles are also applied through spin-off consultancy, which offers expert guidance to customers on implementing electrochemical energy systems. Working with university offshoots, utility companies and multinational corporations, E-storage Engineering is pivotal in driving the new era of energy adoption across Europe and beyond.

A Tale of Transformation

E-Storage Engineering’s genesis was driven by Dr. Massimo Guarnieri’s transition from a successful career in nuclear fusion engineering to more accessible facets of the energy sector. Having spent decades in magnetic confinement research, he sought a new path that led him to electrochemical energy systems. Guarnieri’s journey expanded to include lithium-ion batteries and, eventually, flow batteries, which have since become central to E-Storage Engineering’s operations. A defining moment was the creation of an engineering-centric framework for energy storage, a rare approach in a field dominated by chemistry-focused, small-scale systems.

“We understood that developing scalable energy solutions required an engineering approach that goes hand-in-hand with chemistry advancement,” says Guarnieri.

Today, E-Storage Engineering integrates diverse specialities, including electrical, mechanical, energy and chemical engineering, each contributing to creating technologies for various applications, from mobile energy storage to large-scale grid solutions.

Enhancing Functionality through Personalisation

Typical flow batteries achieve 65-70 percent efficiency, but E-Storage Engineering exceeds this benchmark with over 80percent efficiency, underscoring the markedly improved system performance. It excels in customising solutions to distinct client needs. When working with customers, it remains highly flexible in adapting to the requirements and challenges of exploring new chemistries to create best-suited batteries.

Each engagement starts with discussions to understand the client’s needs and challenges. Customers often approach E-Storage Engineering with innovative ideas but lack clarity on actualising them. They need expert assistance in attaining the performance metrics required to develop competitive proposals. In such cases, the company leverages its extensive experience to propose tailored solutions that effectively address client inquiries.

E-Storage Engineering’s customisation activities include designing pilot systems tailored to the client’s site. This regards considerations for the energy converter’s cross-sectional area and the number of cells required in the stack, which state the converter power rating. It also entails the optimized selection and combination of active and structural materials that can withstand the chemical reactions associated with different chemistries, which demands meticulous attention to detail.

We understood that developing scalable energy solutions required an engineering approach that goes hand-in-hand with chemistry advancement


The company also develops advanced software solutions to manage its hardware systems. The software optimises device performance by minimising energy losses and maximising efficiency. The company’s software capabilities extend to managing experiments, enabling the collection and processing of data for accurate performance potential analysis of new devices, materials and chemistries. Battery management systems are crucial for both lithium-ion and flow batteries, hydrogen electrolysers and fuel cells.

Guarnieri’s management role in Flow Batteries Europe, an organisation representing stakeholders advancing the development, commercialisation and deployment of flow batteries across the E.U. and the world, continually enriches team E-Storage Engineering with the latest information and market trends. At the same time, the company gains valuable insights into clients’ research trajectories and specific challenges by strongly emphasising direct customer contact and establishing connections through trade fairs, conventions and congresses.

As hydrogen gains popularity as a clean energy vector, E-Storage Engineering's efforts in developing electrolysers and fuel cells become even more vital. These technologies enable the production and storage of hydrogen from renewable energy sources. It is poised to expand, with plans to grow the team to meet the demands of various industrial partners and research collaborators. In contrast, it is exploring venture capital opportunities to accelerate the development and commercialisation of its advanced energy storage systems and lead the next generation of clean energy innovation.

Staying true to client satisfaction with a strong focus on innovation, E-Storage Engineering is a go-to partner for those seeking reliable and efficient energy storage solutions.