TECHNOLOGY

Systems that make the most
of the heat you have

Capture, convert, store, and deliver heat. From any available source, into the network that needs it.

WHAT WE BUILD WITH

Heat pumps, pit thermal energy storage with our patented floating lid, and multi-source integration.

WHAT WE BUILD WITH

Heat pumps

Large‑scale heat pumps designed for new and existing networks. Natural refrigerant heat pumps where it fits — always system‑first.

 

  • Built to work with storage and existing assets.
  • Source + temperatures + controls engineered together.
  • Tender‑ready scope and interfaces.

What does aalborg hc systems deliver?

aalborg hc systems designs and delivers integrated heating and cooling systems in new and existing networks.

This includes:

  • large-scale heat pumps
  • thermal energy storage (TES and PTES)
  • integration of multiple heat sources

The focus is on complete system solutions, not standalone technologies.

Can you integrate into existing district heating plants?

Yes. Most projects involve integration into existing infrastructure. aalborg hc systems connects new technologies to:

  • existing networks
  • boilers and CHP units
  • available heat sources

The result is a coordinated system upgrade, not a replacement of existing assets.

Do you act as EPC contractor?

Yes. aalborg hc systems delivers projects on an EPC basis.

This covers:

  • engineering and system design
  • procurement and supplier coordination
  • construction and commissioning

The responsibility remains with one party from concept to operation.

Which heat sources can you integrate?

aalborg hc systems integrates multiple heat sources within one system, including:

  • wastewater
  • geothermal energy
  • ambient air
  • industrial excess heat

Solutions are designed as source-agnostic systems, optimised for local conditions.

What do you need to get started?

A project can start with a limited set of data:

  • heat demand profile (load curve)
  • supply and return temperatures

Based on this, aalborg hc systems defines a first system concept and integration approach.

WHAT WE BUILD WITH

Thermal Energy 
Storage (TES/PTES)

Pit thermal energy storage (PTES) and TES — built for new and existing networks. We design seasonal thermal energy storage around real dispatch.

 

  • Designed for thermal storage integration with heat pumps and solar.
  • For high flexibility (daily + seasonal).
  • PTES lid: patented & certified.

How do you size TES/PTES?

Thermal Energy Storage (TES) and Pit Thermal Energy Storage (PTES) are sized based on the specific role they must fulfil in the energy system.

aalborg hc systems defines storage capacity by analysing:

  • heat demand profiles (daily and seasonal)
  • available heat sources (waste heat, geothermal, heat pumps)
  • network temperature levels
  • operational strategy (peak shaving, load shifting, seasonal storage)

The result is not a generic volume, but a system-optimised storage design that balances:

  • investment cost
  • utilisation rate
  • integration with heat generation assets

Sizing is always part of a full system design – not a standalone calculation.

Can you integrate into existing plants?

Yes. Integration into existing infrastructure is a core part of most projects.

aalborg hc systems designs solutions that connect seamlessly to:

  • district heating networks
  • existing boilers and CHP units
  • large-scale heat pumps
  • industrial heat sources

The focus is on:

  • hydraulic compatibility
  • temperature alignment (especially for low-temperature operation)
  • minimal disruption to ongoing operations

Existing assets are not replaced by default. They are repositioned within a more efficient system architecture, often extending their operational value.

What’s the PTES lid benefit?

The PTES lid is a critical component for performance, not an accessory.

Its main functions are:

  • reducing thermal losses significantly
  • protecting the storage from weather impact
  • maintaining stable operating conditions over time

A properly designed lid improves:

  • overall storage efficiency
  • long-term durability of the system
  • predictability of performance

For large-scale seasonal storage, the lid directly impacts the economic viability of the solution.

Is it tender-ready?

Yes. Solutions from aalborg hc systems are developed with tendering and execution in mind from the start.

This includes:

  • system design at a level suitable for procurement
  • defined technical interfaces
  • clear performance parameters
  • EPC-ready documentation

The goal is to move from concept to tender without redesign.

Projects are structured to support:

  • public procurement processes
  • utility-scale investment decisions
  • EPC execution

WHAT WE BUILD WITH

Thermal Energy 
Storage with PTES Lid

A patented PTES lid enabling long-term storage performance through reduced heat loss and stable system operation — built for new and existing networks.

 

  • Patented & certified
  • Diffusion‑open design
  • Built for large PTES

PTES cover vs standard cover — what’s different?

The PTES cover from aalborg hc systems is designed as an engineered system component, not a standard membrane solution. aalborg hc systems focuses on reducing heat loss, improving durability, and ensuring stable operating conditions. This results in reliable long-term performance for large-scale PTES applications.

Does it fit my PTES design?

Yes. aalborg hc systems adapts each PTES lid to the specific storage design and site conditions. Geometry, size, and integration points are evaluated to ensure full compatibility. The solution is always aligned with the overall system designed by aalborg hc systems.

Can you deliver lid-only?

Yes. aalborg hc systems can deliver the PTES lid as a standalone scope. It can be integrated into both new and existing PTES systems. aalborg hc systems can also support interface design and installation if required.

Is it tender-ready?

Yes. The PTES lid solution from aalborg hc systems is developed for direct use in tender processes. Specifications, interfaces, and performance parameters are clearly defined. This allows seamless integration into EPC projects led by aalborg hc systems or third parties.

LET'S TALK

Tell us about your network.

ANY QUESTIONS?

FAQ

What does aalborg hc systems deliver?

aalborg hc systems designs and delivers integrated heating and cooling systems in new and existing networks.

This includes:

  • large-scale heat pumps
  • thermal energy storage (TES and PTES)
  • integration of multiple heat sources

The focus is on complete system solutions, not standalone technologies.

Can you integrate into existing district heating plants?

Yes. Most projects involve integration into existing infrastructure. aalborg hc systems connects new technologies to:

  • existing networks
  • boilers and CHP units
  • available heat sources

The result is a coordinated system upgrade, not a replacement of existing assets.

Do you act as EPC contractor?

Yes. aalborg hc systems delivers projects on an EPC basis.

This covers:

  • engineering and system design
  • procurement and supplier coordination
  • construction and commissioning

The responsibility remains with one party from concept to operation.

Which heat sources can you integrate?

aalborg hc systems integrates multiple heat sources within one system, including:

  • wastewater
  • geothermal energy
  • ambient air
  • industrial excess heat

Solutions are designed as source-agnostic systems, optimised for local conditions.

What do you need to get started?

A project can start with a limited set of data:

  • heat demand profile (load curve)
  • supply and return temperatures

Based on this, aalborg hc systems defines a first system concept and integration approach.