Cost year of Cost Models#

Some cost models are derived from literature and output costs (CapEx and OpEx) in a specific dollar-year. Some cost models require users to input the key cost information and the output costs are in the same cost year as the user-provided costs. For cost models with a built-in cost year, the cost year is not required as an input for the cost model. For cost models based on user-provided costs, the cost_year should be included in the tech_config for that technology.

Cost models with inherent cost year#

Summary of cost models that are based around a cost year#

Cost Model

Cost Year

basic_electrolyzer_cost

2016

pem_electrolyzer_cost

2021

singlitico_electrolyzer_cost

2021

h2_storage with 'mch' storage type

2024

h2_storage for geologic storage or buried pipe

2018

simple_ammonia_cost

2022

direct_ocean_capture_cost

2023

ocean_alkalinity_enhancement_cost

2024

ocean_alkalinity_enhancement_cost_financial

2024

steel_cost

2022

reverse_osmosis_desalination_cost

2013

synloop_ammonia_cost

N/A (adjusts costs to target_dollar_year within cost model)

Cost models with user input cost year#

Summary of cost models that have user-input cost year#

Cost Model

wind_plant_cost

atb_utility_pv_cost

atb_comm_res_pv_cost

simple_ASU_cost

hopp

run_of_river_hydro_cost

smr_methanol_plant_cost

stimulated_geoh2_cost

natural_geoh2_cost

wombat

hydrogen_tank_cost

custom_electrolyzer_cost

Example tech_config input for user-input cost year#

technologies:
  solar:
    performance_model:
      model: "pysam_solar_plant_performance"
    cost_model:
      model: "atb_utility_pv_cost"
    model_inputs:
        performance_parameters:
            pv_capacity_kWdc: 100000
            dc_ac_ratio: 1.34
            ...
        cost_parameters:
            capex_per_kWac: 1044
            opex_per_kWac_per_year: 18
            cost_year: 2022