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Release Notes

Version 0.1.4 (2025-12-17)

Version 0.1.3 (2025-10-20)

New subtype for thermal energy storage

  • Added Abstract type AbstractTES.
  • Introduced a new AbstractTES type BoundRateTES including documentation, checks, and tests which sets a maximum bound for charge and discharge capacities in relation to the installed storage level.
  • Added discharge capacity to ThermalEnergyStorage node with legacy constructors to prevent breaking changes.

Miscellaneous

  • Switched from Data to ExtensionData as described within EnergyModelsBase v0.9.1.
  • Removed the folder submodels as the CHP model was moved to a new repository.
  • Unified and extended the test structure.
  • Included the descriptive names for EnergyModelsGUI.

Fixes

  • Minor fixes to the documentation and example comments.
  • Fixed one of the constructors for ThermalEnergyStorage which was not working. This includes as well now a warning if the wrong StorageBehavior is utilized.

Version 0.1.2 (2025-06-10)

Bugfix

  • The function t_source(n::HeatPump) did result in an error. This was not tested previously and not used in the model. New tests are hence included for it.

Version 0.1.1 (2025-02-10)

  • Adjusted to EnergyModelsBase v0.9.0:
    • Increased version nubmer for EMB.
    • Model worked without adjustments.
    • Adjustments only required for simple understanding of changes.
  • Included updated DHPipe:
    • DHPIpe now follow a check.
    • The arguments for create_link were updated.
  • Renaming of test files to be consistent with other packages.

Version 0.1.0 (2024-12-18)

Initial version of the heat package within the EnergyModelsX framework.

Heat Pump

  • Developed a new HeatPump node based on RefNetworkNode.
  • Incorporates constraints on the input flow of a heat source and a driving force (electricity).
  • The underlying COP calculation is based on given profiles for sink and source temperature as well as a Carnot efficiency.

Thermal Energy Storage

  • Developed a ThermalEnergyStorage node.
  • Includes heat losses calculated by a given heat loss factor and the storage level of the previous time period.

District Heating Pipe

  • Developed a new type of link called DHPipe.
  • Incorporates a constant absolute heat loss between the input and the output of the link based on district heating temperature, ground temperature, pipe lenght and heat loss factor.
  • Requires a capacity and allows for investments.

HeatExchanger nodes

  • Developed a HeatExchanger node as parametric type.
  • The node can be used in combination with ResourceHeat for automatic calculation of the achievable energy recovery.