EtesElectricResistance

Electric thermal energy storage

PySAM.EtesElectricResistance.default(config) → EtesElectricResistance

Load defaults for the configuration config. Available configurations are:

  • “ETESSingleOwner”

Note

Some inputs do not have default values and may be assigned a value from the variable’s Required attribute. See variable attribute descriptions below.

PySAM.EtesElectricResistance.from_existing(data, optional config) → EtesElectricResistance

Share data with an existing PySAM class. If optional config is a valid configuration name, load the module’s defaults for that configuration.

PySAM.EtesElectricResistance.new() → EtesElectricResistance
PySAM.EtesElectricResistance.wrap(ssc_data_t) → EtesElectricResistance

Load data from a PySSC object.

Warning

Do not call PySSC.data_free on the ssc_data_t provided to wrap()

EtesElectricResistance is a wrapper for the SSC compute module cmod_etes_electric_resistance.cpp

Interdependent Variables

The variables listed below are interdependent with other variables. If you change the value of one of these variables, you may need to change values of other variables. The SAM user interface manages these interdependent variables, but in PySAM, it is up to you change the value of all interdependent variables so they are consistent. See Interdependent Variables for examples and details.

  • const_per_interest_rate1
  • const_per_interest_rate2
  • const_per_interest_rate3
  • const_per_interest_rate4
  • const_per_interest_rate5
  • const_per_months1
  • const_per_months2
  • const_per_months3
  • const_per_months4
  • const_per_months5
  • const_per_percent1
  • const_per_percent2
  • const_per_percent3
  • const_per_percent4
  • const_per_percent5
  • const_per_upfront_rate1
  • const_per_upfront_rate2
  • const_per_upfront_rate3
  • const_per_upfront_rate4
  • const_per_upfront_rate5
  • dispatch_factor1
  • dispatch_factor2
  • dispatch_factor3
  • dispatch_factor4
  • dispatch_factor5
  • dispatch_factor6
  • dispatch_factor7
  • dispatch_factor8
  • dispatch_factor9
  • dispatch_factors_ts
  • dispatch_sched_weekday
  • dispatch_sched_weekend
  • ppa_multiplier_model

Functions

class PySAM.EtesElectricResistance.EtesElectricResistance

This class contains all the variable information for running a simulation. Variables are grouped together in the subclasses as properties. If property assignments are the wrong type, an error is thrown.

assign(dict) → None

Assign attributes from nested dictionary, except for Outputs

nested_dict = { 'Solar Resource': { var: val, ...}, ...}

execute(int verbosity) → None

Execute simulation with verbosity level 0 (default) or 1

export() → dict

Export attributes into nested dictionary

replace(dict) → None

Replace attributes from nested dictionary, except for Outputs. Unassigns all values in each Group then assigns from the input dict.

nested_dict = { 'Solar Resource': { var: val, ...}, ...}

unassign(name) → None

Unassign a value in any of the variable groups.

value(name, optional value) → Union[None, float, dict, sequence, str]

Get or set by name a value in any of the variable groups.

SolarResource Group

class PySAM.EtesElectricResistance.EtesElectricResistance.SolarResource
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

SolarResource_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

SolarResource_vals = { var: val, ...}

solar_resource_file

Local weather file path

Constraints: LOCAL_FILE

Required: False for configuration with default inputs. May be required if a variable dependent on its value changes. Example: For the Detailed PV - Single Owner configuration, only Subarray 1 is enabled in the configuration defaults, so Subarray 2 inputs would not be required; if Subarray 2 is enabled, then Subarray 2 inputs is required.

Type:str

SystemControl Group

class PySAM.EtesElectricResistance.EtesElectricResistance.SystemControl
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

SystemControl_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

SystemControl_vals = { var: val, ...}

bop_par

Balance of plant parasitic power fraction [MWe/MWcap]

Required: True

Type:float
bop_par_0

Balance of plant parasitic power fraction - const coeff

Required: True

Type:float
bop_par_1

Balance of plant parasitic power fraction - linear coeff

Required: True

Type:float
bop_par_2

Balance of plant parasitic power fraction - quadratic coeff

Required: True

Type:float
bop_par_f

Balance of plant parasitic power fraction - mult frac

Required: True

Type:float
disp_csu_cost

Cycle startup cost [$/MWe-cycle/start]

Required: Required if is_dispatch=1

Type:float
disp_down_time_min

Minimum time requirement for cycle to not generate power [hr]

Required: Required if is_dispatch=1

Type:float
disp_frequency

Frequency for dispatch optimization calculations [hour]

Required: Required if is_dispatch=1

Type:float
disp_horizon

Time horizon for dispatch optimization [hour]

Required: Required if is_dispatch=1

Type:float
disp_hsu_cost

Heater startup cost [$/MWe-cycle/start]

Required: Required if is_dispatch=1

Type:float
disp_max_iter

Max number of dispatch optimization iterations

Required: Required if is_dispatch=1

Type:float
disp_mip_gap

Dispatch optimization solution tolerance

Required: Required if is_dispatch=1

Type:float
disp_pen_delta_w

Dispatch cycle production change penalty [$/MWe-change]

Required: Required if is_dispatch=1

Type:float
disp_reporting

Dispatch optimization reporting level

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:float
disp_spec_bb

Dispatch optimization B&B heuristic

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:float
disp_spec_presolve

Dispatch optimization presolve heuristic

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:float
disp_spec_scaling

Dispatch optimization scaling heuristic

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:float
disp_steps_per_hour

Time steps per hour for dispatch optimization calculations

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:float
disp_time_weighting

Dispatch optimization future time discounting factor

Required: Required if is_dispatch=1

Type:float
disp_timeout

Max dispatch optimization solve duration [s]

Required: Required if is_dispatch=1

Type:float
disp_up_time_min

Minimum time requirement for cycle to generate power [hr]

Required: Required if is_dispatch=1

Type:float
is_dispatch

Allow dispatch optimization?

Required: False. Automatically set to 0 if not assigned explicitly or loaded from defaults.

Type:float
pb_fixed_par

Fixed parasitic load that don’t generate heat - runs at all times [MWe/MWcap]

Required: True

Type:float
sim_type

timeseries, 2: design only

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:float
Type:1 (default)
time_start

Simulation start time [s]

Required: False. Automatically set to 0 if not assigned explicitly or loaded from defaults.

Type:float
time_steps_per_hour

Number of simulation time steps per hour

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:float
time_stop

Simulation stop time [s]

Required: False. Automatically set to 31536000 if not assigned explicitly or loaded from defaults.

Type:float
vacuum_arrays

Allocate arrays for only the required number of steps

Required: False. Automatically set to 0 if not assigned explicitly or loaded from defaults.

Type:float

FinancialModel Group

class PySAM.EtesElectricResistance.EtesElectricResistance.FinancialModel
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

FinancialModel_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

FinancialModel_vals = { var: val, ...}

etes_financial_model

[1-8]

Constraints: INTEGER,MIN=0

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:float

SystemDesign Group

class PySAM.EtesElectricResistance.EtesElectricResistance.SystemDesign
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

SystemDesign_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

SystemDesign_vals = { var: val, ...}

P_ref

Reference output electric power at design condition [MW]

Required: True

Type:float
T_htf_cold_des

Cold HTF inlet temperature at design conditions [C]

Required: True

Type:float
T_htf_hot_des

Hot HTF outlet temperature at design conditions [C]

Required: True

Type:float
design_eff

Power cycle efficiency at design [none]

Required: True

Type:float
gross_net_conversion_factor

Estimated gross to net conversion factor

Required: True

Type:float
heater_mult

Heater multiple relative to design cycle thermal power [-]

Required: True

Type:float
tshours

Equivalent full-load thermal storage hours [hr]

Required: True

Type:float

PowerCycle Group

class PySAM.EtesElectricResistance.EtesElectricResistance.PowerCycle
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

PowerCycle_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

PowerCycle_vals = { var: val, ...}

cycle_cutoff_frac

Minimum turbine operation fraction before shutdown

Required: True

Type:float
cycle_max_frac

Maximum turbine over design operation fraction

Required: True

Type:float
pb_pump_coef

Pumping power to move 1kg of HTF through PB loop [kW/kg]

Required: True

Type:float
pc_config

PC configuration 0=Steam Rankine, 1=user defined

Constraints: INTEGER

Required: False. Automatically set to 0 if not assigned explicitly or loaded from defaults.

Type:float
q_sby_frac

Fraction of thermal power required for standby

Required: True

Type:float
startup_frac

Fraction of design thermal power needed for startup [none]

Required: True

Type:float
startup_time

Time needed for power block startup [hr]

Required: True

Type:float

RankineCycle Group

class PySAM.EtesElectricResistance.EtesElectricResistance.RankineCycle
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

RankineCycle_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

RankineCycle_vals = { var: val, ...}

CT

1=evaporative, 2=air

Required: Required if pc_config=0

Type:float
Type:Condensor type
P_boil

Boiler operating pressure [bar]

Required: Required if pc_config=0

Type:float
P_cond_min

Minimum condenser pressure [inHg]

Required: Required if pc_config=0

Type:float
P_cond_ratio

Condenser pressure ratio

Required: Required if pc_config=0

Type:float
T_ITD_des

ITD at design for dry system [C]

Required: Required if pc_config=0

Type:float
T_amb_des

Reference ambient temperature at design point [C]

Required: Required if pc_config=0

Type:float
T_approach

Cooling tower approach temperature [C]

Required: Required if pc_config=0

Type:float
dT_cw_ref

Reference condenser cooling water inlet/outlet temperature difference [C]

Required: Required if pc_config=0

Type:float
n_pl_inc

Number of part-load increments for the heat rejection system [none]

Constraints: INTEGER

Required: Required if pc_config=0

Type:float
pb_bd_frac

Power block blowdown steam fraction

Required: Required if pc_config=0

Type:float
tech_type

Turbine inlet pressure control 1=Fixed, 3=Sliding

Required: Required if pc_config=0

Type:float

UserDefinedPowerCycle Group

class PySAM.EtesElectricResistance.EtesElectricResistance.UserDefinedPowerCycle
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

UserDefinedPowerCycle_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

UserDefinedPowerCycle_vals = { var: val, ...}

ud_f_W_dot_cool_des

Percent of user-defined power cycle design gross output consumed by cooling [%]

Required: Required if pc_config=1

Type:float
ud_ind_od

Off design user-defined power cycle performance as function of T_htf, m_dot_htf [ND], and T_amb

Required: Required if pc_config=1

Type:sequence[sequence]
ud_m_dot_water_cool_des

Mass flow rate of water required at user-defined power cycle design point [kg/s]

Required: Required if pc_config=1

Type:float

ThermalStorage Group

class PySAM.EtesElectricResistance.EtesElectricResistance.ThermalStorage
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

ThermalStorage_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

ThermalStorage_vals = { var: val, ...}

cold_tank_Thtr

Minimum allowable cold tank HTF temperature [C]

Required: True

Type:float
cold_tank_max_heat

Rated heater capacity for cold tank heating [MW]

Required: True

Type:float
h_tank

Total height of tank (height of HTF when tank is full) [m]

Required: True

Type:float
h_tank_min

Minimum allowable HTF height in storage tank [m]

Required: True

Type:float
hot_htf_code

Receiver HTF, 17=Salt (60% NaNO3, 40% KNO3) 10=Salt (46.5% LiF 11.5% NaF 42% KF) 50=Lookup tables

Required: True

Type:float
hot_tank_Thtr

Minimum allowable hot tank HTF temperature [C]

Required: True

Type:float
hot_tank_max_heat

Rated heater capacity for hot tank heating [MW]

Required: True

Type:float
tank_pairs

Number of equivalent tank pairs

Constraints: INTEGER

Required: True

Type:float
tes_init_hot_htf_percent

Initial fraction of available volume that is hot [%]

Required: True

Type:float
u_tank

Loss coefficient from the tank [W/m2-K]

Required: True

Type:float
ud_hot_htf_props

User-defined TES fluid property data [-]

Required: True

Type:sequence[sequence]

Heater Group

class PySAM.EtesElectricResistance.EtesElectricResistance.Heater
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Heater_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Heater_vals = { var: val, ...}

f_q_dot_des_allowable_su

Fraction of design power allowed during startup [-]

Required: True

Type:float
f_q_dot_heater_min

Minimum allowable heater output as fraction of design

Required: True

Type:float
hrs_startup_at_max_rate

Duration of startup at max startup power [hr]

Required: True

Type:float

TimeOfDeliveryFactors Group

class PySAM.EtesElectricResistance.EtesElectricResistance.TimeOfDeliveryFactors
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

TimeOfDeliveryFactors_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

TimeOfDeliveryFactors_vals = { var: val, ...}

dispatch_factor1

Dispatch payment factor 1

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor2

Dispatch payment factor 2

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor3

Dispatch payment factor 3

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor4

Dispatch payment factor 4

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor5

Dispatch payment factor 5

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor6

Dispatch payment factor 6

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor7

Dispatch payment factor 7

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor8

Dispatch payment factor 8

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factor9

Dispatch payment factor 9

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:float
dispatch_factors_ts

Dispatch payment factor timeseries array

Required: Required if ppa_multiplier_model=1&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:sequence
dispatch_sched_weekday

PPA pricing weekday schedule, 12x24

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:sequence[sequence]
dispatch_sched_weekend

PPA pricing weekend schedule, 12x24

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:sequence[sequence]
ppa_multiplier_model

PPA multiplier model [0/1]

Options: 0=diurnal,1=timestep

Constraints: INTEGER,MIN=0

Required: False. Automatically set to 0 if not assigned explicitly or loaded from defaults.

Type:float

Revenue Group

class PySAM.EtesElectricResistance.EtesElectricResistance.Revenue
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Revenue_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Revenue_vals = { var: val, ...}

mp_energy_market_revenue

Energy market revenue input

Info: Lifetime x 2[Cleared Capacity(MW),Price($/MWh)]

Required: Required if etes_financial_model=6&is_dispatch=1&sim_type=1

Type:sequence[sequence]
ppa_price_input

PPA prices - yearly [$/kWh]

Required: Required if ppa_multiplier_model=0&etes_financial_model<5&is_dispatch=1&sim_type=1

Type:sequence

SystemCost Group

class PySAM.EtesElectricResistance.EtesElectricResistance.SystemCost
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

SystemCost_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

SystemCost_vals = { var: val, ...}

cycle_spec_cost

Power cycle specific cost [$/kWe]

Required: True

Type:float

SystemCosts Group

class PySAM.EtesElectricResistance.EtesElectricResistance.SystemCosts
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

SystemCosts_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

SystemCosts_vals = { var: val, ...}

bop_spec_cost

Balance of plant specific cost [$/kWe]

Required: True

Type:float
contingency_rate

Contingency for cost overrun [%]

Required: True

Type:float
epc_cost_fixed

EPC fixed [$]

Required: True

Type:float
epc_cost_per_watt

EPC cost per watt [$/W]

Required: True

Type:float
epc_cost_perc_of_direct

EPC cost percent of direct [%]

Required: True

Type:float
heater_spec_cost

Heater specific cost [$/kWht]

Required: True

Type:float
land_cost_fixed

Land fixed [$]

Required: True

Type:float
land_cost_per_watt

Land cost per watt [$/W]

Required: True

Type:float
land_cost_perc_of_direct

Land cost percent of direct [%]

Required: True

Type:float
sales_tax_frac

Percent of cost to which sales tax applies [%]

Required: True

Type:float
tes_spec_cost

Thermal energy storage specific cost [$/kWht]

Required: True

Type:float

FinancialParameters Group

class PySAM.EtesElectricResistance.EtesElectricResistance.FinancialParameters
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

FinancialParameters_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

FinancialParameters_vals = { var: val, ...}

const_per_interest_rate1

Interest rate, loan 1 [%]

Required: True

Type:float
const_per_interest_rate2

Interest rate, loan 2 [%]

Required: True

Type:float
const_per_interest_rate3

Interest rate, loan 3 [%]

Required: True

Type:float
const_per_interest_rate4

Interest rate, loan 4 [%]

Required: True

Type:float
const_per_interest_rate5

Interest rate, loan 5 [%]

Required: True

Type:float
const_per_months1

Months prior to operation, loan 1

Required: True

Type:float
const_per_months2

Months prior to operation, loan 2

Required: True

Type:float
const_per_months3

Months prior to operation, loan 3

Required: True

Type:float
const_per_months4

Months prior to operation, loan 4

Required: True

Type:float
const_per_months5

Months prior to operation, loan 5

Required: True

Type:float
const_per_percent1

Percent of total installed cost, loan 1 [%]

Required: True

Type:float
const_per_percent2

Percent of total installed cost, loan 2 [%]

Required: True

Type:float
const_per_percent3

Percent of total installed cost, loan 3 [%]

Required: True

Type:float
const_per_percent4

Percent of total installed cost, loan 4 [%]

Required: True

Type:float
const_per_percent5

Percent of total installed cost, loan 5 [%]

Required: True

Type:float
const_per_upfront_rate1

Upfront fee on principal, loan 1 [%]

Required: True

Type:float
const_per_upfront_rate2

Upfront fee on principal, loan 2 [%]

Required: True

Type:float
const_per_upfront_rate3

Upfront fee on principal, loan 3 [%]

Required: True

Type:float
const_per_upfront_rate4

Upfront fee on principal, loan 4 [%]

Required: True

Type:float
const_per_upfront_rate5

Upfront fee on principal, loan 5 [%]

Required: True

Type:float
sales_tax_rate

Sales tax rate [%]

Required: True

Type:float

AdjustmentFactors Group

class PySAM.EtesElectricResistance.EtesElectricResistance.AdjustmentFactors
assign() → None

Assign attributes from dictionary

export() → Dict

Export attributes into dictionary

constant

float

Type:type
dc_constant

DC Constant loss adjustment [%]

dc_hourly

DC Hourly Adjustment Factors [%]

dc_periods

DC Period-based Adjustment Factors [%]

hourly

AC Hourly Adjustment Factors [%]

periods

AC Period-based Adjustment Factors [%]

sf_constant

DC Constant loss adjustment [%]

sf_hourly

DC Hourly Adjustment Factors [%]

sf_periods

DC Period-based Adjustment Factors [%]

Outputs Group

class PySAM.EtesElectricResistance.EtesElectricResistance.Outputs
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Outputs_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Outputs_vals = { var: val, ...}

E_heater_su_des

Heater startup energy [MWt-hr]

Type:float
Q_tes_des

TES design capacity [MWt-hr]

Type:float
T_htf_cycle_in

PC HTF inlet temperature [C]

Type:sequence
T_htf_cycle_out

PC HTF outlet temperature [C]

Type:sequence
T_htf_heater_in

Heater HTF inlet temperature [C]

Type:sequence
T_htf_heater_out

Heater HTF outlet temperature [C]

Type:sequence
T_tes_cold

TES cold temperature [C]

Type:sequence
T_tes_hot

TES hot temperature [C]

Type:sequence
V_tes_htf_avail

Volume of TES HTF available for heat transfer [m3]

Type:float
V_tes_htf_total

Total TES HTF volume [m3]

Type:float
W_dot_bop_design

BOP parasitics at design [MWe]

Type:float
W_dot_bop_parasitics

Parasitic power plant generation-dependent laod [MWe]

Type:sequence
W_dot_cycle_cooling

PC cooling parasitics [MWe]

Type:sequence
W_dot_cycle_gross

PC electrical power gross (no cooling parasitics) [MWe]

Type:sequence
W_dot_cycle_htf_pump

PC HTF pumping power [MWe]

Type:sequence
W_dot_cycle_net

PC electrical power net (with cooling parasitics) [MWe]

Type:sequence
W_dot_fixed_parasitics

Parasitic power plant fixed load [MWe]

Type:sequence
W_dot_heater

Heater electricity consumption [MWe]

Type:sequence
W_dot_out_net

Total electric power to grid [MWe]

Type:sequence
annual_E_cycle_gross

Annual cycle gross electric energy generation [MWhe]

Type:float
annual_E_heater

Annual heater electric energy consumption [MWhe]

Type:float
annual_E_tes_heater

Annual TES freeze heater electric energy consumption [MWhe]

Type:float
annual_Q_cycle_thermal_in

Annual cycle thermal energy input [MWht]

Type:float
annual_Q_cycle_thermal_startup

Annual cycle thermal energy consumed by startup [MWht]

Type:float
annual_Q_heater_startup

Annual heater thermal energy consumed by startup [MWht]

Type:float
annual_Q_heater_to_htf

Annual heater thermal power to HTF [MWhe]

Type:float
annual_Q_tes_losses

Annual TES thermal energy lost to ambient [MWht]

Type:float
annual_energy

Annual total electric power to grid [kWhe]

Type:float
annual_energy_full_availability

Annual total electric power to grid w/ full availability [MWhe]

Type:float
bop_cost_calc

BOP cost [$]

Type:float
construction_financing_cost

Total construction financing cost [$]

Type:float
contingency_cost_calc

Contingency cost [$]

Type:float
cp_htf_cycle_des

Cycle htf cp at T ave at design [kJ/kg-K]

Type:float
cycle_cost_calc

Cycle cost [$]

Type:float
d_tank_tes

Diameter of TES tank [m]

Type:float
dens_store_htf_at_T_ave

Density of TES HTF at avg temps [kg/m3]

Type:float
direct_subtotal_cost_calc

Direct subtotal cost [$]

Type:float
disp_iter_ann

Annual sum of dispatch solver iterations

Type:float
disp_obj_relax

Dispatch objective function - relaxed max

Type:sequence
disp_objective

Dispatch objective function value

Type:sequence
disp_objective_ann

Annual sum of dispatch objective function value [$]

Type:float
disp_pceff_expected

Dispatch expected power cycle efficiency adj.

Type:sequence
disp_presolve_nconstr

Dispatch number of constraints in problem

Type:sequence
disp_presolve_nconstr_ann

Annual sum of dispatch problem constraint count

Type:float
disp_presolve_nvar

Dispatch number of variables in problem

Type:sequence
disp_presolve_nvar_ann

Annual sum of dispatch problem variable count

Type:float
disp_qpbsu_expected

Dispatch expected power cycle startup energy [MWht]

Type:sequence
disp_qsf_expected

Dispatch expected solar field available energy [MWt]

Type:sequence
disp_qsfprod_expected

Dispatch expected solar field generation [MWt]

Type:sequence
disp_qsfsu_expected

Dispatch expected solar field startup enegy [MWt]

Type:sequence
disp_rel_mip_gap

Dispatch relative MIP gap

Type:sequence
disp_rev_expected

Dispatch expected revenue factor

Type:sequence
disp_solve_iter

Dispatch iterations count

Type:sequence
disp_solve_state

Dispatch solver state

Type:sequence
disp_solve_state_ann

Annual sum of dispatch solve state

Type:float
disp_solve_time

Dispatch solver time [sec]

Type:sequence
disp_solve_time_ann

Annual sum of dispatch solver time [sec]

Type:float
disp_subopt_flag

Dispatch suboptimal solution flag

Type:sequence
disp_tes_expected

Dispatch expected TES charge level [MWht]

Type:sequence
disp_wpb_expected

Dispatch expected power generation [MWe]

Type:sequence
e_ch_tes

TES charge state [MWht]

Type:sequence
elec_purchase_price_mult

Electricity purchase price multiplier

Type:sequence
epc_cost_calc

EPC cost [$]

Type:float
eta_cycle_gross

PC efficiency gross (no cooling parasitics)

Type:sequence
eta_cycle_net

PC efficiency net (with cooling parasitics)

Type:sequence
flip_target_percent

After-tax IRR target [%]

Type:float
gen

Total electric power to grid with available derate [kWe]

Type:sequence
heater_cost_calc

Heater cost [$]

Type:float
installed_per_cap_cost_calc

Installed cost per capacity [$/kWe]

Type:float
land_cost_calc

Land cost [$]

Type:float
m_dot_balance

Relative mass flow balance error

Type:sequence
m_dot_htf_cycle

PC HTF mass flow rate [kg/s]

Type:sequence
m_dot_htf_cycle_des

Cycle htf mass flow rate at design [kg/s]

Type:float
m_dot_htf_heater

Heater HTF mass flow rate [kg/s]

Type:sequence
m_dot_water_cycle

PC water consumption, makeup + cooling [kg/s]

Type:sequence
mass_tes_cold

TES cold tank mass (end) [kg]

Type:sequence
mass_tes_hot

TES hot tank mass (end) [kg]

Type:sequence
n_op_modes

Operating modes in reporting timestep

Type:sequence
nameplate

Nameplate capacity [MWe]

Type:float
op_mode_1

1st operating mode

Type:sequence
op_mode_2

2nd operating mode, if applicable

Type:sequence
op_mode_3

3rd operating mode, if applicable

Type:sequence
ppa_soln_mode

PPA solution mode [0/1]

Type:float
q_balance

Relative energy balance error

Type:sequence
q_dot_ch_tes

TES charge thermal power [MWt]

Type:sequence
q_dot_cycle

PC thermal power [MWt]

Type:sequence
q_dot_cycle_startup

PC startup thermal power [MWt]

Type:sequence
q_dot_dc_tes

TES discharge thermal power [MWt]

Type:sequence
q_dot_heater_design

Heater thermal output at design [MWt]

Type:float
q_dot_heater_startup

Heater thermal power consumed during startup [MWt]

Type:sequence
q_dot_heater_to_htf

Heater thermal power to HTF [MWt]

Type:sequence
q_dot_loss_tes_des

TES thermal loss at design [MWt]

Type:float
q_dot_tes_heater

TES freeze protection power [MWe]

Type:sequence
q_dot_tes_losses

TES thermal losses [MWt]

Type:sequence
q_pb_design

Cycle thermal input at designMWt

Type:float
sales_tax_cost_calc

Sales tax cost [$]

Type:float
system_capacity

System capacity [kWe]

Type:float
tdry

Resource dry Bulb temperature [C]

Type:sequence
tes_cost_calc

TES cost [$]

Type:float
time_hr

Time at end of timestep [hr]

Type:sequence
total_direct_cost_calc

Total direct cost [$]

Type:float
total_indirect_cost_calc

Total indirect cost [$]

Type:float
total_installed_cost

Total installed cost [$]

Type:float
total_land_area

Total land area [acre]

Type:float
tou_period

Time of use period

Type:sequence
tshours_heater

Hours of TES relative to heater output [hr]

Type:float
twet

Resource wet Bulb temperature [C]

Type:sequence