HYBRID ENERGY STORAGE SOLUTIONS SOCIEDAD LIMITADA

Their core work

HESStec is a Spanish SME specializing in hybrid energy storage systems and advanced power electronics. They develop battery management systems (BMS), energy management systems (EMS), and power conversion hardware — combining lithium-ion with organic redox flow batteries for grid and behind-the-meter applications. Their work spans from aerospace-grade multilevel power converters to EV charging infrastructure with smart charging and local storage integration.

What they specialise in

How they've shifted over time

HESStec began with aerospace-oriented power electronics — modular multilevel converters using wide bandgap semiconductors for aeronautical applications (SPARTAN, 2018). From 2020 onward, they pivoted firmly toward energy storage, EV charging, and grid-scale hybrid battery systems, adding software-layer capabilities like blockchain-secured energy management and smart charging. The trajectory shows a clear shift from component-level power hardware toward integrated energy storage solutions with digital management layers.

HESStec is moving toward complete hybrid storage solutions combining multiple battery chemistries with intelligent management — positioning them for the growing grid storage and EV infrastructure markets.

How they like to work

HESStec operates exclusively as a consortium participant, contributing specialized hardware and systems expertise rather than leading projects. With 45 unique partners across 9 countries in just 3 projects, they work in large, multi-partner consortia typical of Clean Sky and energy innovation actions. This suggests they are a trusted technical contributor that larger coordinators seek out for specific power electronics and storage capabilities.

Despite only 3 projects, HESStec has built a network of 45 partners across 9 countries, indicating participation in large European consortia. Their connections span aerospace (via Clean Sky JTI), digital electronics, and energy storage sectors.

What sets them apart

HESStec bridges power electronics hardware with energy storage system integration — a combination that is uncommon among SMEs. Their experience spans from fault-tolerant aerospace converters to grid-scale hybrid batteries mixing Li-Ion with organic redox flow technology. For consortium builders, they offer a rare blend of hardware design (sensors, converters, wide bandgap semiconductors) and system-level energy management in a single SME partner.

Highlights from their portfolio

• HYBRIS
  Their largest project (EUR 367,680) tackling hybrid Li-Ion/organic redox flow battery systems for grid and behind-the-meter applications — their most commercially relevant work.
• SPARTAN
  Demonstrates aerospace-grade power electronics capability with modular multilevel converters and wide bandgap semiconductors — showing hardware depth beyond energy storage.
• PROGRESSUS
  Bridges their hardware roots with digital innovation — combining power conversion, smart charging infrastructure, and blockchain-based hardware security in a single project.