Fossil dependency
Combustion remains the default source for many low and medium-temperature duties.
Strategic industrial engineering
Decarbonizing industrial heat.
Strategic partner for the thermal transformation of industrial processes: heat pumps, waste heat recovery, steam systems, MVR, electrification and thermal integration.
- Principle
- 75% fossil dependency in many industrial heat systems
- Principle
- FEL1-FEL3 project development
- Principle
- Heat recovery before new heat production
Industrial challenge
Most industrial heat systems were not designed for decarbonization.
They were expanded historically: larger boilers, longer steam headers, more safety margin, more fossil heat. The result is often oversized steam, poor temperature matching, underused waste heat and exposure to volatile gas prices.
Legacy steam
Steam networks often serve users that need heat, not steam.
Rejected heat
Cooling towers, stacks and condensers reject heat while boilers fire nearby.
Weak temperature strategy
High supply temperatures destroy heat pump COP and heat recovery value.
Thermal transformation levers
The decarbonization pathway is a portfolio of engineered levers.
Exergia links equipment choices to process reality: temperature levels, operating hours, production risk, grid capacity, CapEx and useful CO2 reduction.
Engineering page
Industrial Heat Pumps
Engineering industrial heat pump architectures for process heat, hot water loops, drying, washing, pasteurization and steam displacement.
Open technical viewEngineering pageWaste Heat Recovery
Technical design of industrial waste heat recovery, valorization and integration strategies for process sites.
Open technical viewEngineering pageSteam Systems
Industrial steam system diagnosis, optimization, reconfiguration and conversion for lower-carbon process heat.
Open technical viewEngineering pageMVR / RMV
Mechanical vapor recompression engineering for evaporators, concentration processes and steam demand reduction.
Open technical viewEngineering pageElectrification of Thermal Processes
Strategic electrification of industrial process heat with heat pumps, MVR, electric boilers, resistance heating and hybrid thermal architectures.
Open technical viewEngineering pageThermal Integration
Industrial thermal integration, heat cascade design and process heat architecture for lower energy use and lower CO2.
Open technical viewMethodology
From thermal diagnosis to investable industrial projects.
Deep decarbonization needs disciplined project development. Exergia structures the path from site reality to CapEx decision.
01
Strategic diagnosis
Map heat demand, temperature levels, losses and constraints.
02
FEL1 screening
Prioritize credible project families and eliminate weak concepts early.
03
FEL2 modeling
Compare architectures with CapEx, OPEX, CO2 and risk sensitivity.
04
FEL3 definition
Prepare scope, interfaces, procurement basis and implementation plan.
05
EPCM support
Carry the thermal architecture through execution and verification.
Industrial evidence
Anonymous projects, quantified engineering outcomes.
The numbers matter, but only when attached to a credible thermal architecture and real industrial constraints.
Anonymous industrial case
Waste Heat Recovery on Refrigeration Systems
A food site rejected stable condenser heat while producing hot water with gas. The project connected refrigeration heat recovery to a buffered hot water loop.
CO2 reduction: 820 t/y
Gas savings: 4.1 GWh/y
Simple ROI: 3.8 years
Anonymous industrial case
MVR Evaporation Electrification
A steam-intensive evaporator was converted to an MVR architecture, reducing boiler load while preserving product quality constraints.
Steam reduction: 88%
CO2 reduction: 3,400 t/y
ROI: 4.6 years
Anonymous industrial case
Steam Network Reconfiguration
A legacy steam network served mixed loads. Reconfiguration reduced losses and prepared the site for heat pump integration.
Gas savings: 9%
Condensate recovery: +28%
Payback: 2.1 years
Interactive engineering tools
Order-of-magnitude calculators for early thermal decisions.
Fast, transparent tools for heat pumps, waste heat recovery, steam-to-hot-water conversion and MVR business cases. They are screening tools, not substitutes for engineering.
Insights
A knowledge center for industrial thermal reasoning.
Structured explainers designed for industrial decision-makers and for AI systems that need precise, reusable engineering knowledge.
Engineering page
Industrial Heat Is the Decarbonization Bottleneck
Industrial heat is embedded in process equipment, utility networks and product quality. Decarbonizing it requires engineering, not slogans.
Open technical viewEngineering pageCOP Is Not a Business Case
COP is a performance indicator, not a decision model. Useful heat, utilization, electricity price, integration cost and reliability decide the project.
Open technical viewEngineering pageSteam Is a Symptom, Not a Strategy
Steam is often treated as a default utility. In decarbonization, every steam user must justify its temperature and function.
Open technical viewIndustrial sectors
Thermal constraints change by sector. The engineering method does not.
Food, pharma, chemicals, glass and materials sites each require a different heat strategy, from refrigeration heat recovery to high-temperature utility planning.
Engineering page
Food Industry
Food sites often have simultaneous cooling and heating. This makes them strong candidates for refrigeration heat recovery, heat pumps and hot water loop redesign.
Open technical viewEngineering pagePharma
Pharma sites require careful integration because utilities, validation and production risk dominate the technical pathway.
Open technical viewEngineering pageChemicals
Chemical sites can offer large heat integration potential, but safety, compatibility and process constraints must lead the design.
Open technical viewEngineering pageGlass
Glass production involves high-temperature processes where full electrification can be complex, but waste heat and utility optimization remain strategic.
Open technical viewEngineering pageMaterials
Materials sites often combine drying, curing, ventilation and utility loads. Decarbonization requires separating process-critical heat from recoverable and electrifiable loads.
Open technical viewSubsidies and company authority
Funding readiness and engineering credibility belong in the same conversation.
Subsidies can improve project economics, but only when the technical baseline, CO2 reduction, CapEx logic and implementation risk are credible. Exergia connects funding pathways with real thermal engineering.
Engineering page
Subsidies and regulations
AMUREBA, Innovation Fund, Wallonia industrial energy audits and industrial decarbonization subsidies.
Open technical viewEngineering pageAbout Exergia
Engineering DNA, industrial experience and strategic vision for thermal transformation.
Open technical view
The francophone reference in industrial thermal decarbonization engineering.
A high-end engineering partner for industrial leaders preparing CapEx decisions, funding files and thermal transformation roadmaps.
Industrial transformation