This repository contains inputs for integrated PM-CAES assessment using a set of future energy system scenarios with different fractions of renewable energy supply developed by oemof, as well as different technical options for the power plant topology built via TESPy and subsurface storage configurations modelled in ECLIPSE simulator.
Optimised dispatch model based on several assumptions, where three shadow electricity pricies (scenario developed within ANGUS project), CO2 emission and fuel prices are inputs for Gurobi.
| Scenario year | Power plant type | Renewable share [%] | Average shadow electricity price [EUR/MWh] | CO2 emission price [EUR/t] | Fuel price [EUR/MWh] | Scenario reference |
|---|---|---|---|---|---|---|
| 2030 | D-CAES | 76.3 | 52.6 | 29.4 | 26.40 | 2030NEPC |
| 2040 | D-CAES | 85.9 | 83.7 | 126.0 | 30.24 | 2040GCA |
| 2050 | D-CAES | 100.0 | 88.3 | 150.0 | 43.72 | 2050NB |
| 2030 | 2-AA-CAES | 76.3 | 52.6 | - | - | 2030NEPC |
| 2030 | 3-AA-CAES | 76.3 | 52.6 | - | - | 2030NEPC |
- diabatic topology with 3-stage compression and 2-stage expansion stages including a heat recuperator to preheat the air from the storage
- adiabatic plant with 2-stage compression and expansion stages
- adiabatic plant with 3-stage compression and expansion stages
Coupled power plant-geostorage parameters. The reference temperature and pressure are 273.15 K and 1.013 bar.
| Component | Parameter | Value |
|---|---|---|
| Compressors | nominal power | 230 MW |
| isentropic efficiency, ηs,cmp | 0.92 | |
| isentropic efficiency control stage, ηs,cmp,cs | 0.85 | |
| pressure ratio stages 1 and 2 (diabatic, three-stage adiabatic) | 5 | |
| pressure ratio at stage 1 (two-stage adiabatic) | 10 | |
| Turbines | nominal power | 115 MW |
| isentropic efficiency, ηs,exp | 0.90 | |
| isentropic efficiency control stage, ηs,exp,cs | 0.85 | |
| Coolers | temperature after cooling (diabatic) | 298.15 K |
| temperature after cooling (adiabatic) | 338.15 K | |
| Generator & Motor | efficiency, η(el,mech) | 0.97 |
| Combustion | fuel type (diabatic) | CH4 |
| turbine inlet temperature | 1473.15 K | |
| outlet temperature (diabatic) | 423.15 K | |
| pressure loss | 3 % | |
| Heat exchangers | temperature after reheating (adiabatic) | 573.15 K |
| pressure loss | 2 % | |
| Storage | nominal pressure compression | 115 bar |
| nominal pressure expansion | 110 bar | |
| vertical well length, L | 1055 m | |
| vertical well number | 9 / 3 | |
| pipe roughness, ks | 0.04 mm | |
| well diameter, D | 0.25 m | |
| horizontal well number | 2 / 2 | |
| horizontal section length, Lh | 450 m / 850 m | |
| total completion length, | 150 m / 150 m |
Power plant performance during continuous charging (top row: a, b, c) and discharging (bottom row: d, e, f) runs
Main geostorage parameters for scenario simulation.
| Parameter | Value |
|---|---|
| Dry air composition | N2/O2/Ar/CO2 (0.7553/0.2314/0.0129/0.0004) |
| Molar mass of air | 28.965 g/mol |
| Critical temperature | 132.53 K |
| Critical pressure | 37.86 bar |
| Air density at standard condition | 1.205 kg/m3 |
| Initial pressure gradient | 0.105 bar/m |
| Reservoir temperature (isothermal) | 311 K |
| Permeability | 700 mD |
| Porosity | 0.27 |
| Residual water saturation | 0.15 |
| Residual gas saturation | 0 |
| Max. relative gas permeability | 0.9 |
| Max. relative water permeability | 1 |
| Capillary entry pressure | 0.1 bar |
| Pore size distribution index | 2 |
| Initial air in place mass | 5.56 Mt |
| Maximum/minimum allowable BHP | 130 bar / 80 bar |
Geostorage configuration schemes for different well setups
- Gasanzade, F., Witte, F., Tuschy, I. and Bauer, S., 2023. Integration of geological compressed air energy storage into future energy supply systems dominated by renewable power sources. Energy Conversion and Management, 277, doi:10.1016/j.enconman.2022.116643
- TESPy Version 0.4.2 - User's Universe, doi:10.5281/zenodo.4534878
- National scale energy system scenarios, doi:10.5281/zenodo.3714708
- ECLIPSE Reservoir Simulation Software v2017.2, Schlumberger Ltd.
- LLC Gurobi Optimization. Gurobi Optimizer Reference Manual, 2021.