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Our projects

Installations in operation at leading industrial companies.

Ceramics, metallurgy, food processing, chemicals, paper, glass... our thermal solutions adapt to all energy-intensive industrial processes, from waste heat recovery to process electrification.Ceramics, metallurgy, food processing, chemicals, paper, glass... our thermal solutions adapt to all energy-intensive industrial processes, from waste heat recovery to process electrification.

8industrial installations in service
+100,000hcumulative operating hours
+1,500 k€saved by our clients
+4,000 tof CO₂ avoided

Ceramics sector

Our projects in ceramics.

The ceramics sector is our historical area of expertise. Tunnel kilns, batch kilns, dryers: we have deployed solutions at the sites of global industry leaders.

In operation since 2019

Tegulys: tile and brick manufacturer

Recovery of waste heat from the firing kiln for reuse in the terracotta product dryer, via an Eco-Stock® 1.3 MWh at 600°C.

Installation of a pre-firing chamber powered exclusively by waste heat, reducing firing cycles and increasing productivity.

Financing: 100% of CAPEX financed through leasing or subsidized by ADEME and the Nouvelle-Aquitaine Region. Zero investment by the site.

"The Eco-Stock® solution improves the energy efficiency of the firing process and also increases our production capacity."

Nicolas Ducrot, CEO Tegulys
Eco-Stock® project Tegulys
Eco-Stock® installation at the Tegulys site
–20 %natural gas
660 MWhsaved/year
160 tCO₂ avoided/year
1.3 MWhEco-Stock® @ 600°C

In operation since 2024

Wienerberger : Pontigny site (89)

Recovery of heat from the site's 6 kilns to redirect it to the dryers as a substitute for burners. The 2 Eco-Stock® units allow time-shifted discharge to match production schedules.

Financing: 100% of CAPEX invested by ETC Invest or subsidized by ADEME, in exchange for heat supply at a fixed price for 10 years.

"Eco-Tech Ceram will enable us to recover waste heat from the six kilns at the Pontigny site and save 480 tonnes of CO₂ per year."

Robert Lacroix, Director of Sustainable Development — Wienerberger France
–15 %natural gas
2,400 MWhsaved/year
500 tCO₂ avoided/year
2 × 2.3 MWhEco-Stock® @ 600°C

In operation since 2023 — Horizon 2020 Program

Villeroy & Boch : Valence d'Agen plant (82)

Electrification project coupled with an Eco-Stock®: tunnel kiln waste heat recovery, temperature boost via an electric E-Burner, off-peak storage / peak-hour discharge. 100% decarbonized drying thanks to an air/water heat exchanger.

Financing: majority of CAPEX subsidized by the European Union's Horizon 2020 research program.

"The plant will thus reduce its gas consumption by 42% compared to 2021. Without these savings, the site would be threatened by rising gas prices."

Laurent Santarelli, Plant Director, Valence d'Agen — Villeroy & Boch France
Eco-Stock® installation Villeroy & Boch
–42 %natural gas
3,000 MWhsaved/year
1,000 tCO₂ avoided/year
E-Burner+ Eco-Stock®

Metallurgy sector

Our projects in metallurgy.

Electric arc furnaces, heat treatment furnaces, preheating chambers: ETC works on the thermal processes of European steelmakers and metallurgists.

Installation Aubert & Duval Metallurgy
Aubert & Duval

Waste heat recovery study on hot enclosure. Replacement of preheating enclosures operating with electric hot air blowers by a heat exchanger and an Eco-Stock®.

WHRWaste heat recovery
Eco-Stock®High-temp storage
Installation ThyssenKrupp Metallurgy
ThyssenKrupp

Recovery of waste heat from furnace flue gases for preheating water used by the process boiler via a flue gas/water heat exchanger.

Exchangerflue gas/water
Integrationexisting process
ArcelorMittal prototype Metallurgy
ArcelorMittal

Reduction of electric arc furnace energy consumption by drying products upstream of charging — waste heat recovery from electric arc furnaces.

Dryingpre-kiln loading
Reductionkiln consumption

Use cases by sector

Beyond ceramics and metallurgy.

Our solutions apply to any energy-intensive thermal process. Here are the sectors where we actively develop projects — waste heat recovery and process electrification.

Food & Beverage

Drying, firing, pasteurization

  • Heat recovery from dryer flue gases, cooking exhausts, or sterilizer cooling water. 
  • Hybridization via e-burner to produce hot air, or e-boiler for hot water and steam production.
Chemicals

Distillation, drying, reactions

  • Waste heat reuse on distillation column condensers or reactor jacketing.
  • Recovery as preheating for the hot water network or CIP circuits.
  • Heat production hybridization via e-boiler.
Raw materials

Calcination, drying, spray drying

  • Calcination kilns, dryers, spray dryers.
  • Waste heat recovery on high-temperature processes.


Paper

Drying and process steam

  • Waste heat recovery from dryer hood vapors or boiler flue gases.
  • Recovery of this heat for preheating incoming air via a barrier heat exchanger, or feedwater.
Glass

Annealing lehr and melting furnace

  • High-temperature waste heat source on melting furnaces.
  • Recovery and valorization on annealing lehr via heat exchangers.​
  • Hybridization on annealing lehr via e-burner.
Construction

Firing, drying, prefabrication

  • Thermal processes on construction materials.
  • Waste heat recovery and electrification of kilns and dryers.


Sector analyses currently being expanded — contact us for a study tailored to your process.

All our references

More than 20 studies and industrial projects.

For over 10 years, Eco-Tech Ceram has been designing custom solutions to improve energy efficiency and recover industrial waste heat — from feasibility study to prototype, through to commissioned installation.

Eco-Stock® installed at Tegulys, tile and brick manufacturer
Ceramics
Waste heat recovery from the firing kiln to the dryer

Recovery of high-temperature waste heat at the output of a firing kiln, reused in the plant's dryer. — Tegulys

Wienerberger firing kiln chimneys at Pontigny
Ceramics
Waste heat recovery from 6 firing kilns to dryers

Waste heat optimization from the output of 6 kilns in a unit accounting for over 95% of the site's production. — Wienerberger

Heat exchanger system installed in the Villeroy & Boch plant
Ceramics
Waste heat recovery and energy optimization

Dryer renovation, compressor waste heat recovery, and insulation of slip and glazing tanks. — Villeroy & Boch

Waste heat recovery study from glazing kilns
Ceramics
Waste heat recovery from glazing kilns

Reduction of glazing and biscuit kiln consumption, energy recovered via a high-temperature storage solution. — Bernardaud

Waste heat recovery study via heat exchanger — ThyssenKrupp
Metallurgy
Waste heat recovery via a heat exchanger

Recovery of waste heat from furnace flue gases for preheating water used by the process boiler, via a flue gas/water heat exchanger. — ThyssenKrupp

Waste heat recovery study on hot enclosure — Industeel
Metallurgy
Waste heat recovery on a hot enclosure

Replacement of preheating enclosures operating with electric hot air blowers by a heat exchanger and an Eco-Stock®. — Industeel

Energy efficiency study in a foundry — FBM
Metallurgy
Improving energy efficiency in a foundry

Energy optimization of different zones of a foundry through the implementation of waste heat recovery systems. — FBM

Waste heat recovery study from electric arc furnaces — Aperam
Metallurgy
Waste heat recovery from electric arc furnaces

Reduction of electric arc furnace consumption by drying products upstream of charging. — Aperam

MITIGAT project — multi-energy platform
Prototyping & R&D
MITIGAT — Innovation Fund Small Scale

Multi-energy platform (Heat to Heat, heat mobility, Power to Heat, Heat to Power, Power to Power) tested at industrial scale. Funded by the European Commission's Innovation Fund.

Multi-technology storage platform for the LTEN laboratory in Nantes
Prototyping & R&D
Multi-technology storage platform

Multi-energy, multi-technology storage/discharge platform built for the LTEN laboratory in Nantes.

Eco-Stock® coupled with a Power to Heat system — H2020
Prototyping & R&D
H2020 SME Instrument — phase 2

Demonstration of the Eco-Stock® under real conditions at a European heavy industry site. Eco-Tech Ceram was selected by the highly competitive European H2020 SME Instrument Phase II program.

Mobile waste heat recovery unit installed at ArcelorMittal
Prototyping & R&D
Mobile waste heat recovery solution

Development of a 360 kWh pilot storage unit, fully containerized, mobile and modular. — ArcelorMittal

Prototype of 900 °C thermal storage with intelligent remote control
Prototyping & R&D
900 °C thermal storage prototype

Development of a prototype capable of storing heat up to 900 °C, with intelligent remote control.

Global Innovation Competition — phase III
Prototyping & R&D
Global Innovation Competition — phase III

Development of eco-designed thermal storage units for the energy transition and waste heat recovery.

Mobile high-temperature test bench — STEMPHOS
Prototyping & R&D
High-temperature test bench

Design and build of a turnkey, high-temperature, mobile test bench.

Prototype for complex flue gas treatment — Labcom Solutec
Prototyping & R&D
Prototype for complex flue gas treatment

Recovery of complex industrial waste heat. — Labcom Solutec

Solar power plant with mobile thermal storage — Sun2P
Prototyping & R&D
Solar power plant with mobile thermal storage

Mini solar power plant producing electricity day and night, without batteries. — Sun2P

Development of ceramic materials from waste — Maciseb
Prototyping & R&D
Development of materials from waste

Development of innovative ceramic materials from residues, by-products and waste. — Maciseb

Thesis — hybrid heat and electricity storage in a multi-energy network
Prototyping & R&D
Heat-electricity storage in a multi-energy network

Stochastic co-optimization of hybrid heat and electricity storage: optimal sizing and management of an energy network.

Thermocline heat storage for solar power plant — Opticline
Prototyping & R&D
Heat storage for solar power plant

High-temperature heat storage optimization using thermocline technology. — Opticline

Partners & awards

A recognized and supported company.

Financial partners

BPI France

Equity participation — Series B 2025

Equity participation — Series B 2025

Energy transition partner

Scientific partners

Origin of the Eco-Stock® technology

5 patents

+50 scientific publications

Eco-Stock® labelled Efficient Solution by Solar Impulse

Awards & institutions

Winner of Bpifrance’s Global Innovation Competition in 2014, 2017, and 2020.

Member of French Tech & French Lab.

France 2030 investment plan — ATEE

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