Pleione Energy

What Pleione Energy does

Pleione Energy S.A. is an international joint venture established in 2015 between Greek company ADAMANT COMPOSITES LTD and German company OMNIDEA-RTG GmbH, headquartered at NCSR Demokritos technology park in Athens, Greece. The company develops graphene-based energy storage technologies and other energy applications, combining proprietary graphene nanomaterial formulations with hybrid battery-supercapacitor architectures. Its core technology encompasses lithium battery cells, supercapacitors, and hybrid energy storage systems (HESS) that pair batteries with supercapacitors to optimize performance and extend lifecycle. The company also develops a reformed methanol fuel cell (MethCell) using intermediate-temperature molten proton conductor electrolyte membranes.

The company's product portfolio includes the commercially available Power Trust hybrid energy storage system (500W and 800W models) targeting military, industrial, and remote field applications, alongside the DIS (Drywall Integrated Supercapacitors) grid-connected HESS designed for integration into building inert spaces such as drywall and facades. Pre-commercial products include graphene-based lithium battery cells, supercapacitor cells, and structural adhesives developed through ESA-funded projects. The company holds multiple filed/pending patents covering graphene-based energy storage components and HESS designs.

The business model operates across three revenue streams: hardware sales (Power Trust units, quote-based pricing), R&D project funding from ESA programs (COORAGE, GRACE, GRACE II, GADGET, GOETHE), EU H2020 projects (OASIS, NANOBAT, EMPHASIS), and Greek national research programs; and technology licensing for graphene-enabled components. The GTM motion is sales-led B2B, targeting green buildings (residential apartment blocks driven by EU nearly zero energy building mandates), military/defense, industrial/manufacturing, and remote field applications. Distribution is direct sales through regional channels with pilots at NCSR Demokritos serving as reference deployments. The company leads the H2020 EMPHASIS project, positioning itself within European strategic supercapacitor initiatives.

Name

Pleione Energy

Legal name

Pleione Energy S.A.

Website

https://pleione-energy.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Pleione Energy S.A. is a Greek-German joint venture developing graphene-based hybrid energy storage systems (battery + supercapacitor) and fuel cells for green buildings, military, industrial, and space applications, with commercial Power Trust products and pre-commercial space-qualified graphene battery technology.

Ownership category

akta.pro rank

NAICS

Battery Manufacturing (33591), Electric Power Generation (22111)

SIC

Motors & Generators (3621)

akta.pro primary industry

Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA)

akta.pro secondary industries

Electrochemical LDES (Flow Batteries & Other Long-Duration Batteries) (EUAFADAA), Fuel Cell Distributed Generation (Hydrogen/Natural Gas SOFC/PEM) (EUACALAK)

Keywords

• Hybrid energy storage systems
• Graphene lithium batteries
• Supercapacitor energy storage
• Methanol fuel cells
• Building integrated storage

Headquarters

HQ city

Athens

HQ country

Greece

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Revenue model

1. Energy Storage Products: Sale of proprietary energy storage products including the Power Trust series (500W and 800W models) for military, industrial, and building applications.
2. R&D Project Funding: Revenue from participation in funded R&D projects including ESA projects (COORAGE, GRACE, GRACE II), EU H2020 projects (OASIS, NANOBAT), and national Greek research programs (DIS, MethCell).
3. Technology Licensing: Commercialization of graphene-enabled technologies developed through research programs, including energy storage components and structural adhesives.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Pleione Energy S.A. designs, develops, and manufactures graphene-enabled hybrid energy storage systems that combine lithium-ion battery cells with supercapacitor cells, and reformed methanol fuel cells, for green buildings, military, industrial, and remote field applications. The company sells the Power Trust product line (500W and 800W hybrid storage units) commercially and develops pre-commercial offerings including DIS (Drywall Integrated Supercapacitors), MethCell fuel cells, and graphene-based battery/supercapacitor cells for space and terrestrial use.

Product overview

Pleione Energy S.A. is an international joint venture (Greek company ADAMANT COMPOSITES LTD and German company OMNIDEA-RTG GmbH) developing innovative energy applications for the energy and space sectors. The company's product portfolio centers on graphene-enabled energy storage technologies, including the commercial Power Trust hybrid energy storage system (500W/800W models), the DIS (Drywall Integrated Supercapacitors) hybrid energy storage system for building integration, and the MethCell reformed methanol fuel cell. Additional pre-commercial products include graphene-based lithium battery cells, supercapacitor cells, and structural adhesives developed under ESA space programs. The company also develops graphene-enabled polymer films with specialized gas barrier properties.

Differentiator

Problem solved

Functional benefit

Brands

• Power Trust: Backup power and energy storage solution for critical applications including military, industrial, and remote field use. Models include POWER TRUST 500W and POWERTRUST 800W.

Quantifiable outcome

• Extended cycle life to 6000+ cycles compared to typical 5000 cycles for standard lithium systems
• +5 more outcomes

Named customers1 record

Segments4 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Twelve partnerships are on record, tiered core, major and minor.

• ADAMANT COMPOSITES LTDcoreStrategic or Co-development Partner · 1 January 2015Greek joint venture partner company. ADAMANT Composites Ltd is a Greek company specializing in composite materials and nanotechnology. Co-founder and managing director Antonios Vavouliotis is shared between both companies. Collaborates on ESA projects including GADGET and GOETHE.
• OMNIDEA-RTG GmbHcoreStrategic or Co-development Partner · 1 January 2015German joint venture partner company. General Manager Nuno M. Fernandes manages the Mechanical Division of Omnidea Lda and is VP of Pleione Energy. Collaborates on ESA projects and brings aerospace and energy program experience.
• University of Patras / Department of Materials SciencemajorStrategic or Co-development PartnerResearch partner in MethCell project (Greece-China bilateral cooperation). Professor George Avgouropoulos coordinates the project. Contributes to development of methanol reforming catalysts and bipolar plates. Has extensive experience in fuel cell related projects.
• Shanghai Jiao Tong UniversitymajorStrategic or Co-development PartnerInternational research partner in MethCell project (Greece-China bilateral cooperation). Ranked 62nd worldwide by QS. Contributes expertise in polymer electrolytes and intermediate temperature electrolytes for fuel cells.
• OASIS H2020 ConsortiumminorStrategic or Co-development PartnerEuropean consortium project (H2020) with 12 pilot lines from nanoparticles to final product. OASIS aims to establish a service ecosystem for nanotechnology manufacturing with sustainable production focus.
• NANOBAT H2020 ConsortiumminorStrategic or Co-development PartnerEuropean consortium project (H2020) developing nanotechnology toolbox for quality testing of Li-ion and beyond Lithium batteries using RF-nanoscale techniques.
• EMPHASIS ConsortiumcoreStrategic or Co-development PartnerPleione leads this H2020 project focused on developing next-generation supercapacitors through novel green materials, cost-effective processes, and advanced device architectures. Focuses on technologies avoiding Critical Raw Materials (CRMs) targeting 2030 European SET-plan for SC technologies.
• ESA GADGET ProjectmajorStrategic or Co-development PartnerESA activity led by Adamant Composites Ltd. Objective is to select, manufacture, test and benchmark graphene-based energy storage components with enhanced energy and power density. Pleione contributes development, testing, commercial evaluation, and industrialization plan.
• ESA COORAGE ProjectmajorStrategic or Co-development PartnerESA project involving Greek and German partners led by Pleione Energy. Develops graphene-based lithium battery cells with extended lifecycle through material and process optimization from active material slurry to electrode production and cell assembly.
• ESA GRACE ProjectmajorStrategic or Co-development PartnerESA project involving Greek and German partners led by Pleione Energy. Validates graphene-based supercapacitor electrode capabilities at cell level by designing, manufacturing, and testing prototype high-performance supercapacitor cell for space applications.
• ESA GRACE II ProjectmajorStrategic or Co-development PartnerESA project involving Greek and German partners led by Pleione Energy. Builds on GRACE results to develop breadboard of Bank of Supercapacitors through material optimization, cell design/assembly, and full system development for space applications.
• ESA GOETHE ProjectminorStrategic or Co-development PartnerESA activity led by Adamant Composites Ltd. Develops new polymeric materials doped with graphene to enhance electrical and thermal conductivity. Pleione contributes breadboard development, testing, industrial planning, and commercial evaluation.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Ioxus: US-based manufacturer of ultracapacitor cells and hybrid battery-supercapacitor modules for transportation, grid, and industrial applications. Comparable in hybrid energy storage architecture and industrial/end-customer focus.
• Enphase Energy: US-based home energy storage and solar inverter company addressing residential and small-commercial energy storage with similar PV self-consumption and backup use cases targeted by DIS and Power Trust.
• Skeleton Technologies: Estonia-based ultracapacitor and energy storage company with a graphene-based supercapacitor product line targeting mobility, grid, and industrial applications. Closest direct comparable in terms of advanced supercapacitor materials and European industrial focus.
• Sonnen: German residential and commercial battery storage provider (now part of Shell) competing in the same green-building and home energy storage market where Pleione's DIS HESS is targeted. Closely aligned on end-customer and EU regulatory tailwinds.

Broad incumbents

• ABB: Swiss-Swedish industrial technology leader offering energy storage solutions, microgrids, and power conversion. Broad incumbent in the industrial and behind-the-meter storage market that Pleione targets with Power Trust.
• BYD: Vertically integrated Chinese battery manufacturer with LFP cell production and grid/residential energy storage systems. Sets the cost benchmark Pleione must beat with its hybrid architecture.
• Tesla: Operates Powerwall, Powerpack, and Megapack across residential, commercial, and grid storage. The dominant broad incumbent in the same energy storage markets Pleione targets with Power Trust and DIS.
• Toshiba Energy Systems: Manufacturer of SCiB lithium-ion battery cells and energy storage solutions for industrial and grid applications. Comparable as a broad incumbent with proprietary lithium battery IP and established customer relationships.

Emerging players

• Fluence Energy: Global grid-scale energy storage and software provider competing in utility and commercial energy storage. Relevant comparable for the HESS system once Pleione scales beyond pilot/building scale.

Others

• Graphenea: Spanish graphene materials supplier and foundry partner to graphene-based product developers. Relevant comparable as an upstream graphene enabler serving the same application ecosystem.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/Pleione_Energy
• Facebookfacebook.com/PeioneEnergy
• LinkedInlinkedin.com/company/pleione-energy-s.a.

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Pleione Energy