Cal Trading B.V. Industrial Boilers

Hybrid boilers

Flexible gas and electric. Combine a traditional burner with electric heating, without compromising capacity or continuity.

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Lower CO₂ emissions
Flexible gas and electric
Capacity up to 31,500 kg/h
Hydrogen-ready
EIA subsidy may apply

What is a hybrid boiler?

Industry faces a major challenge: becoming more sustainable without sacrificing capacity, reliability or continuity. Fully electric steam generation is still not feasible for many companies, due to grid congestion or investment costs.

Hybrid boilers combine two energy sources in one installation: electric heating and a conventional burner running on natural gas, oil or an alternative fuel. Part of the steam is generated emission-free using electricity; the burner automatically kicks in when extra capacity is needed.

Cal Trading advises on, supplies, maintains and optimises hybrid steam systems from Viessmann and VKK Standardkessel, among others, with one or two burner installations plus heating elements.

Hybrid industrial boiler from Cal Trading
Industrial steam boiler from Cal Trading

Capacities and specifications

Our hybrid steam boilers are designed for industrial processes with high or fluctuating steam demand. We align capacity, pressure and the share of electric output with your situation, including available grid capacity.

  • Capacity from 1,200 to 31,500 kg/h, larger on request
  • Design pressure up to 25 bar
  • Up to 15–20% of output emission-free and electric
  • One or two burners plus electric heating elements
  • Suitable for natural gas, oil and hydrogen-ready operation
  • Wide control range with varying steam demand

Our specialists are happy to advise on the right configuration for your process.

Request a no-obligation consultation

How does a hybrid steam boiler work?

At low or moderate steam demand, the installation can run fully on electricity. When demand increases, the burner switches in automatically. Smart control technology continuously selects the most efficient way to produce steam.

This delivers:

  • Maximum flexibility
  • Lower emissions
  • A reliable steam supply
  • Optimal use of available energy sources

Which companies is it for?

A hybrid steam boiler is especially interesting for companies that want to become more sustainable but cannot yet fully move away from fossil fuels. We see applications in food, chemicals, pharmaceuticals, laundries and manufacturing.

Suitable when, among other situations:

  • You want to reduce gas consumption
  • You have sustainability targets
  • You are affected by grid congestion
  • You have high steam demand
  • You want to reduce your CO₂ footprint

Why do companies choose hybrid boilers?

More and more companies are looking for ways to cut energy use and CO₂ emissions without risking their production process. A hybrid boiler offers several advantages.

Lower CO₂ emissions

Because part of the steam is generated electrically, use of fossil fuels drops. In many situations up to 15–20% of output can run emission-free — often fully electric at night.

Maximum operational reliability

When fully electric generation is temporarily not possible, the burner remains available as a reliable back-up. That keeps steam flowing, even during grid congestion or peak demand.

Subsidies and EIA

Depending on the configuration, a hybrid installation may qualify for tax incentives such as the EIA (Energy Investment Allowance). That lowers the investment and shortens payback time.

Thermal oil boiler in an industrial installation
“Hybrid boilers are an important step towards emission-free operation, without having to say goodbye to fossil fuels straight away.”

– Cal Trading

From advice to maintenance

A hybrid installation requires thorough preparation: grid capacity, steam demand, control technology and future energy needs. That is why we always start with an analysis of the current situation.

1. Analysis and inventory

We review your process, available grid connection, required steam capacity and investment budget. That avoids an installation that is too small, too large or inefficient.

2. Engineering and design

Our specialists design a hybrid configuration that fits your situation, regulations and future expansion towards electric or hydrogen-ready operation.

3. Installation and commissioning

We handle delivery, installation and a safe start-up of the complete hybrid steam system.

4. Maintenance and inspections

After handover we stay involved: maintenance, inspections and optimisation of the installation.

5. Water treatment

Water treatment as an integral part of performance management, for efficiency and boiler service life.

Frequently asked questions about hybrid boilers

Need advice on your hybrid boiler installation?

We are happy to advise on grid capacity, steam demand and the right hybrid configuration for your process.

Max Breedijk, medewerker van Cal TradingSchedule a free consultation