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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
Eco-Stock® project Wienerberger
Wienerberger Pontigny industrial site
–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
Villeroy & Boch electrification project
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, firing exhausts, or sterilizer cooling water. Hybridization via E-Burner to produce hot air or an E-Boiler for hot water and steam production.

Chemicals

Distillation, drying, reactions

Waste heat reuse from distillation column condensers or reactor double walls. Recovery for preheating hot water or CIP networks. 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 steam or boiler flue gases. Reuse of this heat for preheating incoming air via a dam exchanger or feedwater.

Glass

Annealing lehr and melting furnace

High-temperature waste heat source from melting furnaces. Recovery and reuse on annealing lehr via heat exchangers. Hybridization on annealing lehr via e-burner.

Construction

Firing, drying, prefabrication

Thermal processes on building 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

Crédit Mutuel Impact

Equity participation — Series B 2025

ADEME

Energy transition partner

Scientific partners

CNRS PROMES

Origin of the Eco-Stock® technology

5 patents

+50 scientific publications

Solar Impulse Efficient Solution

Eco-Stock® labeled Efficient Solution

Awards & institutions

Global Innovation Competition 2030

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

Greentech Innovation

Member of French Tech & French Lab.

Occitanie Region

France 2030 investment plan — ATEE

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