EnergyModelsGasNetworks

EnergyModelsGasNetworks extends the EnergyModelsX ecosystem with pressure-feasible gas transport and pooling of blended gases (e.g. hydrogen–methane). It adds pressure potentials, Weymouth-based link constraints, and quality tracking to EnergyModelsBase.

Features

• Pressure variables and bounds for nodes and links via ResourcePressure and AbstractPressureData.
• Weymouth flow–pressure constraints: Taylor cuts for single-component gases, piecewise-affine planes for blended gases.
• Pooling formulation with component tracking and quality bounds (Alfaki & Haugland, 2013).
• Helper controls for PWA generation (set_optimizer_pwa!, set_step_pressure!) and data structures for blend/pressure metadata.

Installation

] add EnergyModelsGasNetworks

Choose a solver stack appropriate to your use case:

• Single-component pressure: any MIP solver (e.g. HiGHS).
• Pooling or blended-gas pressure: nonconvex MINLP stack (e.g. Alpine + Ipopt + a MIP solver).

See the Quick Start for step-by-step instructions.

Examples

Run the bundled examples from a REPL:

julia> using EnergyModelsGasNetworks
julia> exdir = joinpath(pkgdir(EnergyModelsGasNetworks), "examples")
julia> include(joinpath(exdir, "single_pressure.jl"))   # pressure drop with Taylor cuts
julia> include(joinpath(exdir, "pooling.jl"))           # hydrogen–methane blending

Each script builds a case, sets an optimiser, solves, and prints key flows/pressures or proportions using PrettyTables.

Documentation

Full docs live under docs/ and cover installation, examples, background, and the public API.

Funding

Developed with support from the European Union’s Clean Hydrogen Partnership project SHIMMER (grant 101111888).