SciTransfer
ZiGrid Technology · Project

Converting Low-Temperature Industrial Waste Heat into Renewable Electricity

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Imagine the warm air or water coming off a factory machine that is usually just wasted. This technology acts like a specialized engine that captures that lukewarm heat—even if it's barely hot—and turns it back into usable power. It's like recycling the energy that usually disappears into the air to run your lights and computers.

By the numbers
90-60C
Minimum heat flow for electricity production
25 kW
Power module capacity
4,3 grCO2/kWh
Carbon emissions per kWh produced
50%
Efficiency gains from redesigned power module
37,000 TWh
Addressable low grade waste heat recovery
The business problem

What needed solving

Industries waste 70% of produced energy as heat, but most recovery systems are not economically viable for temperatures below 90°C. This leads to high operational costs, carbon tariffs, and thermal pollution.

The solution

What was built

A stand-alone 25 kW power module with an optimized thermodynamic cycle and an integrated IoT platform for real-time energy monitoring.

Audience

Who needs this

AI Data Center OperatorsPaper and Pulp Mill ManagersHydrogen Production PlantsHeavy Manufacturing Facilities
Business applications

Who can put this to work

Data Centers
enterprise
Target: AI Infrastructure Provider

If you are an AI DataCenter operator dealing with massive cooling costs and thermal pollution, this project developed a stand-alone power module that captures low-grade waste heat. It converts this heat into electricity, reducing your power consumption and carbon footprint.

Pulp and Paper
enterprise
Target: Paper Mill

If you are a paper mill dealing with heat flows between 60-90°C that are too cool for traditional recovery, this project developed a volumetric solution. It allows you to produce electricity from these low-grade sources, saving on grid tariffs and CO2 emission costs.

Hydrogen Production
mid-size
Target: Green Hydrogen Plant

If you are a hydrogen producer dealing with energy inefficiency during production, this project developed a 25 kW power module. By cascading these modules, you can recover waste heat to lower your operational costs and improve overall energy efficiency.

Frequently asked

Quick answers

What is the cost or pricing model for this technology?

ZIGRID uses a 'ZIGRID-as-a-Service' business model. This allows users to monetize savings on power consumption, CO2 tariffs, grid tariffs, and avoided cooling costs while ZIGRID maintains product ownership.

Can this be scaled for large industrial plants?

Yes, the system is designed to be highly scalable. Power modules are connected to each other in cascading steps to increase electricity production based on the facility's needs.

What is the IP status of the technology?

The technology is based on a patented unique volumetric solution. The project specifically allocates EIC funding to further enhance its IP protection.

How does it integrate with existing facility management?

The modules connect to a standard IoT platform. This integration uses sensors and PLCs to provide real-time data and 360-degree business insights on electricity production.

What is the timeline for profitability?

Based on the project objective, the company aims to reach profitable operations as early as 2028.

Consortium

Who built it

The project is led by a single Swedish SME, ZIGRID AB, which holds 100% of the industry ratio. This lean structure indicates a fast-moving, agile development cycle, though it relies heavily on external testing facilities like BAETTR and Jönköping Engine Lab rather than a large consortium of partners.

How to reach the team

Contact ZIGRID AB in Sweden for pilot opportunities in AI DataCenters or heavy industry.

Next steps

Talk to the team behind this work.

Contact us to explore licensing or partnership opportunities with ZIGRID's waste heat recovery technology.