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Power to Heat Technology

Energy.Intelligence.Heat.

POWER TO HEAT

Our heat battery converts sustainable energy into reliable heat for various processes.

How it works
About Heatwacht

Our story

Our story begins in 1960, when founder Hans Wolters gains an important insight at a young age: energy is valuable and anything but self-evident. This conviction forms the common thread in his career. Over the years, he builds extensive practical experience as an installation technician, first as an employee and later as an independent entrepreneur.

35+ years experienceProven technology100% Dutch

Our vision

The energy transition must be practical and reliable. No hype, no buzzwords — just proven thermal battery technology that works.

Our mission

Make thermal energy storage accessible to everyone who needs heat. From hospital to factory.

Our values

Human, local and sustainable. We build relationships, create local jobs and design circular.

Calculate savingsOur approach
Heatwacht thermische energieopslag installatie
Thermal Energy Storage

How our thermal battery works

From renewable energy to reliable heat storage

EPEXPOWERSTOVE
Thermal Solar

Sunlight directly converted to heat

Residual Heat

High temperature process heat reused

Wind Energy

Variable wind power smartly stored

EPEX SPOT

Benefit from low energy prices

Thermal Storage

Heat battery

Output

Heat on demand

Benefits of thermal energy storage

Concrete benefits for your organization

Up to 350,000m³ gas sustainability
At maximum deployment with 1 module, you can make 250,000 to 350,000m³ of gas sustainable. This depends on current process (temperature and efficiency).
Unlimited cycles
The installation has unlimited charge and discharge cycles with high efficiency throughout its entire lifespan.
Flexible deployment
Temporarily store sustainably generated energy and use it later during peaks in heat demand or when there is insufficient supply from sun and wind.
Circular & EU materials
Built from sustainable, circular materials sourced from the EU. Fully recyclable without harmful emissions.
Safe to use
The storage has no fire hazard and only gets warm. Suitable for critical environments such as hospitals and industry.
Modularly expandable
The expansion from one to multiple modules can be carried out seamlessly. Start small and scale up as needed.
01
Our approach 1/7

Firstcontactviathewebsite

You start by filling out the quickscan form on our website. Here we collect the most important data about your situation, energy use and objectives. This allows us to prepare substantively.

Step 1

of 7

First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •First contact via the website • Phone introduction • In-depth meeting • Paid feasibility study • Detailed proposal discussion • Order and realization • Monitoring, service and maintenance •
60%
Case Study

Case: Hospital

How a regional hospital switched to sustainable heat

60%
Gasbesparing
450
Ton CO₂/jaar
100%
Leveringszekerheid
Regional hospital with thermal energy storage

Regional Hospital Central Netherlands

This 400-bed hospital with 24/7 operational requirements was the perfect candidate for our thermal battery. The installation now provides uninterrupted heat delivery, even during peak loads.

01

Challenge

The hospital was completely dependent on gas for heating and hot water. There was no backup during grid failure.

02

Solution

Heatwacht installed a thermal battery that charges during the day with solar energy and delivers heat at night.

03

Result

60% gas savings, 100% supply security and a CO2 reduction of 450 tons per year.

Testimonials

What clients say

Discover how organizations achieve their energy transition with Heatwacht.

  • “Heatwacht heeft onze energiekosten met 60% verlaagd. De installatie verliep soepel en het team was zeer professioneel.”

    J
    Jan de VriesFacility Manager, Regionaal Ziekenhuis

  • “Eindelijk een duurzame oplossing die ook betrouwbaar is. Onze productie draait nu volledig op groene warmte.”

    M
    Maria JansenOperations Director, Voedingsindustrie BV

  • “De thermische batterij van Heatwacht is een gamechanger. Geen gasrekeningen meer en 100% leveringszekerheid.”

    P
    Peter BakkerCEO, DataCenter Noord

Frequently asked questions

Everything you want to know about thermal energy storage and heat storage.

Thermal energy storage (TES) is the storage of energy in the form of heat, so that it can be used later. Our technology stores this heat in magnetite, a pure material that can safely store large amounts of heat. The stored heat can then be used as process heat for industry, for building heating and for district heating.

Contact

Get in touch

Curious if Heatwacht fits your organization? Leave your details and we'll contact you within 24 hours.

Ready to get started?

Discover within 2 minutes if Heatwacht fits your organization.

Free consultation

On-site or online

Installation

Certified

24/7 monitoring

Real-time insights

10 year warranty

All components

Email

info@heatwacht.nl

Phone

+31 20 123 4567

Address

Industrieweg 42, 1234 AB Amsterdam

Available

Mon - Fri: 08:00 - 18:00