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Executive Summary: Which are the Top 10 Battery Storage Startups to Watch?

  1. Luxera Energy (Germany) – develops modular lithium iron phosphate (LFP)-based battery energy storage platforms with integrated inverters and transformers.
  2. EticaAG (USA) – manufactures non-flammable lithium storage systems with dielectric liquid shielding.
  3. Eclipse (France) – builds and operates utility-scale battery energy storage system (BESS) projects.
  4. XESS Energy (Australia) – offers XESS ONE, a modular inverter-based standalone grid-forming system, and XESS ION, LiFePO₄ storage.
  5. Energy Plug Technologies (Canada) – develops utility-scale BESS with AI-driven energy management and quantum-secure protocols.
  6. Accu’t (Netherlands) – repurposes Tier 1 EV batteries into second-life energy storage systems.
  7. BTRY (Switzerland) – manufactures solid-state lithium-ion batteries using streamlined production on single lines.
  8. Wh-Power (USA) – develops advanced storage with CFx interhalogen batteries, cellulose solid-state electrolytes, and micro-silicon anodes.
  9. Domolynx (Canada) – provides residential BESS integrating LFP cells, app-enabled monitoring, and grid-tied inverters.
  10. Wattical (Germany) – offers CELLTESTER, MODULETESTER, and PACKTESTER systems for advanced battery testing with bidirectional energy conversion.

Global Startup Heat Map highlights Emerging Battery Storage Startups to Watch

Through the Big Data & Artificial Intelligence (AI)-powered StartUs Insights Discovery Platform, covering over 9M+ startups, 20K+ technology trends, plus 150M+ patents, news articles & market reports, we identified top battery storage startups.

The Global Startup Heat Map below highlights emerging battery storage startups you should watch in 2026, as well as the geo-distribution of 750+ startups & scaleups we analyzed for this research.

According to our data, we observe high startup activity in Western Europe and the United States, followed by India. The top 5 Startup Hubs for battery storage are London, New York City, Melbourne, San Francisco, and Houston.

 

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Meet Emerging Battery Storage Startups to Watch in 2026

We hand-picked startups to showcase in this report by filtering for their technology, founding year, location, funding, and other metrics. These new battery storage companies work on solutions ranging from utility-scale BESS and second-life EV batteries to non-flammable lithium systems and solid-state designs.

1. Luxera Energy – Battery Energy Storage Platform

German startup Luxera Energy develops a battery energy storage platform to stabilize power grids. The system uses LPF cells housed in modular containers to store surplus electricity from wind and solar sources. Then it releases it when consumption rises, thereby ensuring a balanced grid, fast response times, thermal stability, and long operational life.

Moreover, it integrates battery cells, inverters, transformers, and a battery management system that coordinates charging and discharging with precise temperature control and real-time monitoring.

Further, the platform rapidly responds to grid fluctuations, ensures frequency regulation, and connects to medium and high-voltage networks through substations. Luxera Energy enables municipalities, grid operators, and energy developers to enhance grid resilience, reduce electricity price volatility, and accelerate the energy transition.

2. EticaAG – Non-Flammable Lithium Battery Energy Storage Systems

US-based startup EticaAG manufactures non-flammable lithium battery energy storage systems to reduce fire risks and enhance safety. Its liquid shield system submerges battery cells in a dielectric liquid that neutralizes the risk from thermal runaway. This solution prevents ignition, halts fire propagation, and eliminates toxic emissions during operation.

 

 

Moreover, it simplifies thermal management and enhances system reliability, while ensuring compliance and adherence to safety standards. EticaAG enables data centers and commercial facilities to meet safety-critical demands while providing a reliable energy infrastructure.

3. Eclipse – Utility Scale BESS

French startup Eclipse develops utility-scale battery energy storage systems (BESS) to accelerate renewable energy integration and reduce carbon reliance. It sources land, secures permits, and acquires high-performance hardware to build and operate large-scale battery assets.

Moreover, the startup then optimizes these assets in real time through automated trading strategies and short-term power market intelligence to align battery output with grid demand and price fluctuations.

This approach embeds battery storage into the core of the energy system, improving grid flexibility, enabling efficient energy arbitrage, and stabilizing renewable supply. Energy producers, grid operators, and market participants benefit from enhanced reliability, reduced emissions, and increased economic efficiency.

4. XESS Energy – Grid Forming Standalone Energy System

  • Founding Year: 2023
  • Location: Queensland, Australia

Australian startup XESS Energy provides grid-forming standalone energy systems and lithium battery storage for off-grid applications. Its product, XESS ONE, integrates modular inverter technology with plug-and-play architecture to deliver isolated power without reliance on external grids. The system operates through hot-swappable inverter modules that maintain uninterrupted performance and incorporate inherent black-start protection to ensure autonomous recovery.

Moreover, its lithium battery storage, XESS ION, utilizes LiFePO4 prismatic cells and active battery management to maximize efficiency and ensure scalable energy storage across diverse conditions. XESS Energy provides a strong, expandable energy infrastructure tailored for demanding environments, facilitating energy independence through reliable and intelligent design.

5. Energy Plug Technologies – Utility Energy Storage Applications

Canadian startup Energy Plug Technologies develops utility-scale battery energy storage systems that stabilize the grid and lower energy costs. Its technology stores electricity from renewable sources and releases it during peak demand, enabling energy arbitrage, load-leveling, and demand response.

Moreover, the startup integrates advanced inverters, AI-driven energy management, and quantum security protocols for seamless operation, real-time control, and robust cyber protection.

Energy Plug Technologies improves power reliability, reduces strain on transformers, defers costly grid expansions, and facilitates the transition to sustainable energy systems for utilities and businesses.

 

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6. Accu’t – Second-life EV Battery Energy Storage Systems

  • Founding Year: 2023
  • Location: Breukelen, Netherlands

Netherlands-based startup Accu’t develops second-life energy storage systems using repurposed battery modules from electric vehicles. It uses Tier 1 EV battery modules to deliver high energy density and stable power output across industrial applications. These systems aggregate battery packs from multiple vehicles and extend their functional lifespan, while maintaining compliance with safety standards.

Moreover, each unit features built-in fire suppression, short circuit protection, and robust mechanical safeguards, ensuring operational reliability and safety. Accu’t reduces CO₂ emissions compared to new battery production, while also minimizing waste and resource extraction.

7. BTRY – Solid-state Li-ion Battery

  • Founding Year: 2023
  • Location: Zurich, Switzerland
  • Funding: Raised CHF 900 000 in pre-seed funding
  • Startup Stage: Pre-seed

Switzerland-based startup BTRY manufactures solid-state lithium-ion batteries through a production method that simplifies battery manufacturing. The startup fabricates all battery layers on a single off-the-shelf production line, significantly reducing process steps compared to conventional lithium-ion production.

Moreover, it enables scalable fabrication across diverse applications, which enables consistent quality across cell sizes and formats. By integrating sustainability across the value chain, the startup simplifies production while maintaining performance integrity.

BTRY enables IoT, MedTech, and consumer electronics industries to access efficient, scalable, and sustainable battery solutions that lower production costs and accelerate market adoption.

8. Wh-Power – Innovative Battery Storage Solutions

US-based startup Wh-Power develops innovative battery storage solutions that integrate advanced materials and sustainable design to enhance energy and power delivery. It builds systems using CFx-based interhalogen batteries for long-distance transportation, enabling extended range for ships and rail.

Moreover, it provides cellulose solid-state electrolytes for environmentally responsible performance, ensuring thermal stability and biodegradability. Further, the micro silicon anodes replace graphite in existing manufacturing lines, thereby improving energy density and safety with flame-resistant properties.

The startup provides scalable alternatives to combustion engines and conventional lithium-ion formats. Further, it supports decarbonization, infrastructure resilience, and cost-effective deployment across industrial and mobility sectors.

9. Domolynx – Residential Battery Storage Solution

  • Founding Year: 2023
  • Location: Montreal, Canada

Canadian startup Domolynx provides residential battery storage systems that capture and store surplus solar energy for use during peak demand periods and grid outages. The system integrates LFP battery cells with a multi-level battery management system and grid-tied inverters, enabling efficient energy retention and controlled distribution.

Moreover, it includes features like consumption monitoring, remote firmware upgrades, and app-based local commissioning, which streamline energy oversight and maintenance. This solution enables parallel configuration with multiple inverters, allowing scalability and compatibility with existing setups. Domolynx ensures reliable backup power and reduced energy costs for households seeking long-term energy resilience.

10. Wattical – Advanced Battery Testing and Energy Storage Solutions

  • Founding Year: 2024
  • Location: Aachen, Germany

German startup Wattical specializes in advanced battery testing and energy storage solutions. It integrates bidirectional power conversion systems that transfer energy between three-phase mains and DC battery connections using converters. This enables efficient two-way energy flow during testing.

Its product, CELLTESTER, captures precise performance data at the individual cell level, while the MODULETESTER adapts to various battery technologies to ensure consistent module evaluation.

Moreover, the PACKTESTER combines accuracy with sustainable energy conversion for full battery pack assessments. Wattical streamlines battery validation across all scales, reducing energy waste and supporting innovation in energy storage for a more sustainable future.

Discover All Emerging Battery Storage Startups

The 10 battery storage startups showcased in this report are only a small sample of all startups we identified through our data-driven startup scouting approach. Download our free Industry Innovation Reports for a broad overview of the industry, or get in touch for quick & exhaustive research on the latest technologies & emerging solutions that will impact your company in 2026!