v3.0

• major changes in the structure of source code and input data
• important updates:
  • two versions of input timeseries: full (8760h) and mini (672h)
  • maximum allowed hourly SNSP replaced by the required fixed synchronous generation level
  • biomethane mixing with natural gas
  • centralised heating systems are split based on primary fuel
  • constraints on any annual energy flows (not only final use demand)
  • improved modelling of aggregate BEVs using virtual storage method
  • separate buses for electricity production and consumption to keep track of grid losses
  • neighbouring countries can now have flexible electricity demand for hydrogen production
  • capacity of resistive heaters and heat storage supporting small heat pumps is fixed with respect to heat pump capacity
  • the ratio of capacity to output is fixed for large scale heat storage
  • self-consistent unit carrier cost calculations are implemented

v2.1

• major extension of the model by the heating, hydrogen, and light vehicle sectors
• general updates:
  • change the format of the demand data
  • change the extension of the input files with timeseries from *.xlsx to *.csv
  • distinguish between category, technology, and carrier for assets in the input data
  • implement optimisation of technology bundles’ shares
  • allow optimisation of early retirements of existing assets based on their fixed costs
  • add new statistics of output data
• updates in the electricity sector:
  • base the interconnector capacities on historical cross-border flow data and change the
  • format of interconnector input data
  • add constraint on the maximum allowed hourly SNSP (System Non-Synchronous Penetration)
  • allow simulating thermal power plants in an aggregate manner or as committable units
  • model biogas production, storage, and consumption (for electricity and heat generation) in a separate manner
  • constrain the biomass and biogas power plants by the fuel availability rather than by the maximum installed capacity

v2.0

• new implementation of PyPSA-PL code, preserving PyPSA-PL v1 functionalities
• most important new features:
  • investment optimisation
  • reserve requirement
  • explicit modelling of energy systems in neighbour countries and bidirectional trade flows
• thorough update of default input data

v1

PyPSA-PL v1