TroughPhysicalCspSolver¶

Wrapper for SAM Simulation Core model: cmod_trough_physical_csp_solver.cpp

Input Consistency Warning¶

As described in Possible Problems, some input parameters are interdependent but the equations that enforce consistency are not available in this PySAM module. Therefore, the onus is on the PySAM user to check that interdependencies are correctly handled. The variables which may require additional logic include:

Provided for each of these inputs is a list of other inputs that are potentially interdependent.

Creating an Instance¶

Refer to the Initializing a Model page for details on the different ways to create an instance of a PySAM class.

TroughPhysicalCspSolver model description

TroughPhysicalCspSolver

PySAM.TroughPhysicalCspSolver.default(config) → TroughPhysicalCspSolver¶: Use default attributes None

PySAM.TroughPhysicalCspSolver.from_existing(data, optional config) → TroughPhysicalCspSolver¶: Share underlying data with an existing PySAM class. If config provided, default attributes are loaded otherwise.

PySAM.TroughPhysicalCspSolver.new() → TroughPhysicalCspSolver¶

PySAM.TroughPhysicalCspSolver.wrap(ssc_data_t) → TroughPhysicalCspSolver¶: Use existing PySSC data

Warning

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

Functions¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver¶

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 = { 'Weather': { var: val, ...}, ...}

execute(int verbosity) → None¶: Execute simulation with verbosity level 0 (default) or 1

export() → dict¶: Export attributes into nested dictionary

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.

Weather Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.Weather¶

assign() → None¶

Assign attributes from dictionary

Weather_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

azimuth¶

Azimuth angle of surface/axis [none]

Required: True

Type:	float

file_name¶

Local weather file with path [none]

Constraints: LOCAL_FILE

Required: True

Type:	str

tilt¶

Tilt angle of surface/axis [none]

Required: True

Type:	float

track_mode¶

Tracking mode [none]

Required: True

Type:	float

Trough Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.Trough¶

assign() → None¶

Assign attributes from dictionary

Trough_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

system_capacity¶

Nameplate capacity [kW]

Required: True

Type:	float

TimeOfDelivery Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.TimeOfDelivery¶

assign() → None¶

Assign attributes from dictionary

TimeOfDelivery_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

dispatch_factors_ts¶

Dispatch payment factor array

Required: True if ppa_multiplier_model=1

Type:	sequence

ppa_multiplier_model¶

PPA multiplier model [0/1]

Options: 0=diurnal,1=timestep

Constraints: INTEGER,MIN=0

Required: If not provided, assumed to be 0

Type:	float

SolarField Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.SolarField¶

assign() → None¶

Assign attributes from dictionary

SolarField_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

A_aperture¶

Reflective aperture area of the collector [m2]

Required: True

Type:	sequence

AbsorberMaterial¶

Absorber material type [none]

Required: True

Type:	sequence[sequence]

AnnulusGas¶

Annulus gas type (1=air, 26=Ar, 27=H2) [none]

Required: True

Type:	sequence[sequence]

Ave_Focal_Length¶

Average focal length of the collector [m]

Required: True

Type:	sequence

ColperSCA¶

Number of individual collector sections in an SCA [none]

Required: True

Type:	sequence

D_2¶

Inner absorber tube diameter [m]

Required: True

Type:	sequence[sequence]

D_3¶

Outer absorber tube diameter [m]

Required: True

Type:	sequence[sequence]

D_4¶

Inner glass envelope diameter [m]

Required: True

Type:	sequence[sequence]

D_5¶

Outer glass envelope diameter [m]

Required: True

Type:	sequence[sequence]

D_p¶

Diameter of the absorber flow plug (optional) [m]

Required: True

Type:	sequence[sequence]

Design_loss¶

Receiver heat loss at design [W/m]

Required: True

Type:	sequence[sequence]

Dirt_HCE¶

Loss due to dirt on the receiver envelope [none]

Required: True

Type:	sequence[sequence]

Dirt_mirror¶

User-defined dirt on mirror derate [none]

Required: True

Type:	sequence

Distance_SCA¶

Piping distance between SCA’s in the field [m]

Required: True

Type:	sequence

EPSILON_4¶

Inner glass envelope emissivities (Pyrex) [none]

Required: True

Type:	sequence[sequence]

EPSILON_5¶

Outer glass envelope emissivities (Pyrex) [none]

Required: True

Type:	sequence[sequence]

Error¶

User-defined general optical error derate [none]

Required: True

Type:	sequence

FieldConfig¶

Number of subfield headers [none]

Required: True

Type:	float

Flow_type¶

Flow type through the absorber [none]

Required: True

Type:	sequence[sequence]

Fluid¶

Field HTF fluid ID number [none]

Required: True

Type:	float

GeomEffects¶

User-defined geometry effects derate [none]

Required: True

Type:	sequence

GlazingIntactIn¶

Glazing intact (broken glass) flag {1=true, else=false} [none]

Required: True

Type:	sequence[sequence]

HCE_FieldFrac¶

Fraction of the field occupied by this HCE type [none]

Required: True

Type:	sequence[sequence]

HDR_rough¶

Header pipe roughness [m]

Required: True

Type:	float

IAM_matrix¶

IAM coefficients, matrix for 4 collectors [none]

Required: True

Type:	sequence[sequence]

I_bn_des¶

Solar irradiation at design [C]

Required: True

Type:	float

L_SCA¶

Length of the SCA [m]

Required: True

Type:	sequence

L_aperture¶

Length of a single mirror/HCE unit [m]

Required: True

Type:	sequence

P_a¶

Annulus gas pressure [torr]

Required: True

Type:	sequence[sequence]

P_ref¶

Rated plant capacity [MWe]

Required: True

Type:	float

Pipe_hl_coef¶

Loss coefficient from the header, runner pipe, and non-HCE piping [m/s]

Required: True

Type:	float

Rho_mirror_clean¶

User-defined clean mirror reflectivity [none]

Required: True

Type:	sequence

Rough¶

Roughness of the internal surface [m]

Required: True

Type:	sequence[sequence]

Row_Distance¶

Spacing between rows (centerline to centerline) [m]

Required: True

Type:	float

SCADefocusArray¶

Collector defocus order [none]

Required: True

Type:	sequence

SCAInfoArray¶

Receiver (,1) and collector (,2) type for each assembly in loop [none]

Required: True

Type:	sequence[sequence]

SCA_drives_elec¶

Tracking power, in Watts per SCA drive [W/m2-K]

Required: True

Type:	float

Shadowing¶

Receiver bellows shadowing loss factor [none]

Required: True

Type:	sequence[sequence]

T_fp¶

Freeze protection temperature (heat trace activation temperature) [none]

Required: True

Type:	float

T_loop_in_des¶

Design loop inlet temperature [C]

Required: True

Type:	float

T_loop_out¶

Target loop outlet temperature [C]

Required: True

Type:	float

T_startup¶

Required temperature of the system before the power block can be switched on [C]

Required: True

Type:	float

Tau_envelope¶

Envelope transmittance [none]

Required: True

Type:	sequence[sequence]

TrackingError¶

User-defined tracking error derate [none]

Required: True

Type:	sequence

V_hdr_max¶

Maximum HTF velocity in the header at design [W/m2]

Required: True

Type:	float

V_hdr_min¶

Minimum HTF velocity in the header at design [m/s]

Required: True

Type:	float

W_aperture¶

The collector aperture width (Total structural area used for shadowing) [m]

Required: True

Type:	sequence

accept_init¶

In acceptance testing mode - require steady-state startup [none]

Required: True

Type:	float

accept_loc¶

In acceptance testing mode - temperature sensor location [1/2]

Info: hx/loop

Required: True

Type:	float

accept_mode¶

Acceptance testing mode? [0/1]

Info: no/yes

Required: True

Type:	float

alpha_abs¶

Absorber absorptance [none]

Required: True

Type:	sequence[sequence]

alpha_env¶

Envelope absorptance [none]

Required: True

Type:	sequence[sequence]

epsilon_3_11¶

Absorber emittance for receiver type 1 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_12¶

Absorber emittance for receiver type 1 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_13¶

Absorber emittance for receiver type 1 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_14¶

Absorber emittance for receiver type 1 variation 4 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_21¶

Absorber emittance for receiver type 2 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_22¶

Absorber emittance for receiver type 2 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_23¶

Absorber emittance for receiver type 2 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_24¶

Absorber emittance for receiver type 2 variation 4 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_31¶

Absorber emittance for receiver type 3 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_32¶

Absorber emittance for receiver type 3 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_33¶

Absorber emittance for receiver type 3 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_34¶

Absorber emittance for receiver type 3 variation 4 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_41¶

Absorber emittance for receiver type 4 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_42¶

Absorber emittance for receiver type 4 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_43¶

Absorber emittance for receiver type 4 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_44¶

Absorber emittance for receiver type 4 variation 4 [none]

Required: True

Type:	sequence[sequence]

eta_pump¶

HTF pump efficiency [none]

Required: True

Type:	float

fthrctrl¶

Defocusing strategy [none]

Required: True

Type:	float

fthrok¶

Flag to allow partial defocusing of the collectors [W/SCA]

Constraints: INTEGER

Required: True

Type:	float

m_dot_htfmax¶

Maximum loop HTF flow rate [kg/s]

Required: True

Type:	float

m_dot_htfmin¶

Minimum loop HTF flow rate [kg/s]

Required: True

Type:	float

mc_bal_cold¶

Heat capacity of the balance of plant on the cold side [kWht/K-MWt]

Required: True

Type:	float

mc_bal_hot¶

Heat capacity of the balance of plant on the hot side [kWht/K-MWt]

Info: none

Required: True

Type:	float

mc_bal_sca¶

Non-HTF heat capacity associated with each SCA - per meter basis [Wht/K-m]

Required: True

Type:	float

nColt¶

Number of collector types [none]

Options: constant=4

Required: True

Type:	float

nHCEVar¶

Number of HCE variants per type [none]

Required: True

Type:	float

nHCEt¶

Number of HCE types [none]

Required: True

Type:	float

nLoops¶

Number of loops in the field [none]

Required: True

Type:	float

nSCA¶

Number of SCAs in a loop [none]

Required: True

Type:	float

solar_mult¶

Solar multiple [none]

Required: True

Type:	float

theta_dep¶

Deploy angle [deg]

Required: True

Type:	float

theta_stow¶

Stow angle [deg]

Required: True

Type:	float

washing_frequency¶

Mirror washing frequency [none]

Required: True

Type:	float

water_usage_per_wash¶

Water usage per wash [L/m2_aper]

Required: True

Type:	float

Controller Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.Controller¶

assign() → None¶

Assign attributes from dictionary

Controller_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

T_set_aux¶

Aux heater outlet temp set point [C]

Required: True

Type:	float

T_tank_cold_ini¶

Initial cold tank fluid tmeperature [C]

Required: True

Type:	float

V_tank_hot_ini¶

Initial hot tank fluid volume [m3]

Required: True

Type:	float

W_pb_design¶

Rated plant capacity [MWe]

Required: True

Type:	float

aux_array¶

Coefficients for auxiliary heater parasitics calcs [-]

Required: True

Type:	sequence

bop_array¶

Coefficients for balance of plant parasitics calcs [-]

Required: True

Type:	sequence

cold_tank_Thtr¶

Minimum allowable cold tank HTF temp [C]

Required: True

Type:	float

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

dt_cold¶

Cold side HX approach temp [C]

Required: True

Type:	float

dt_hot¶

Hot side HX approach temp [C]

Required: True

Type:	float

f_tc_cold¶

0=entire tank is hot, 1=entire tank is cold [-]

Required: True

Type:	float

ffrac¶

Fossil dispatch logic [-]

Required: True

Type:	sequence

field_fl_props¶

User defined field fluid property data [-]

Required: True

Type:	sequence[sequence]

fossil_mode¶

Fossil backup mode 1=Normal 2=Topping [-]

Constraints: INTEGER

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_tank_Thtr¶

Minimum allowable hot tank HTF temp [C]

Required: True

Type:	float

hx_config¶

HX configuration [-]

Required: True

Type:	float

is_hx¶

Heat exchanger (HX) exists (1=yes, 0=no) [-]

Required: True

Type:	float

nodes¶

Nodes modeled in the flow path [-]

Required: True

Type:	float

pb_fixed_par¶

Fraction of rated gross power constantly consumed [-]

Required: True

Type:	float

pb_pump_coef¶

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

Required: True

Type:	float

q_max_aux¶

Max heat rate of auxiliary heater [MWt]

Required: True

Type:	float

q_pb_design¶

Design heat input to power block [MWt]

Required: True

Type:	float

q_sby_frac¶

Fraction of thermal power required for standby [-]

Required: True

Type:	float

sf_type¶

Solar field type, 1 = trough, 2 = tower [-]

Required: True

Type:	float

store_fl_props¶

User defined storage fluid property data [-]

Required: True

Type:	sequence[sequence]

store_fluid¶

Material number for storage fluid [-]

Required: True

Type:	float

t_ch_out_max¶

Max allowable cold side outlet temp during charge [C]

Required: True

Type:	float

t_dis_out_min¶

Min allowable hot side outlet temp during discharge [C]

Required: True

Type:	float

t_standby_reset¶

Maximum allowable time for PB standby operation [hr]

Required: True

Type:	float

tank_max_heat¶

Rated heater capacity for tank heating [MW]

Required: True

Type:	float

tank_pairs¶

Number of equivalent tank pairs [-]

Constraints: INTEGER

Required: True

Type:	float

tc_fill¶

Thermocline fill material [-]

Required: True

Type:	float

tc_void¶

Thermocline void fraction [-]

Required: True

Type:	float

tes_pump_coef¶

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

Required: True

Type:	float

tes_type¶

1=2-tank, 2=thermocline [-]

Required: True

Type:	float

tshours¶

Equivalent full-load thermal storage hours [hr]

Required: True

Type:	float

tslogic_a¶

Dispatch logic without solar [-]

Required: True

Type:	sequence

tslogic_b¶

Dispatch logic with solar [-]

Required: True

Type:	sequence

tslogic_c¶

Dispatch logic for turbine load fraction [-]

Required: True

Type:	sequence

u_tank¶

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

Required: True

Type:	float

vol_tank¶

Total tank volume, including unusable HTF at bottom [m3]

Required: True

Type:	float

TouTranslator Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.TouTranslator¶

assign() → None¶

Assign attributes from dictionary

TouTranslator_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

weekday_schedule¶

Dispatch 12mx24h schedule for week days

Required: True

Type:	sequence[sequence]

weekend_schedule¶

Dispatch 12mx24h schedule for weekends

Required: True

Type:	sequence[sequence]

Powerblock Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.Powerblock¶

assign() → None¶

Assign attributes from dictionary

Powerblock_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

CT¶

Flag for using dry cooling or wet cooling system [none]

Required: True if pc_config=0

Type:	float

F_wc¶

Fraction indicating wet cooling use for hybrid system [none]

Options: constant=[0,0,0,0,0,0,0,0,0]

Required: True if pc_config=0

Type:	sequence

P_boil¶

Boiler operating pressure [bar]

Required: True if pc_config=0

Type:	float

P_cond_min¶

Minimum condenser pressure [inHg]

Required: True if pc_config=0

Type:	float

P_cond_ratio¶

Condenser pressure ratio [none]

Required: True if pc_config=0

Type:	float

T_ITD_des¶

ITD at design for dry system [C]

Required: True if pc_config=0

Type:	float

T_amb_des¶

Reference ambient temperature at design point [C]

Required: True if pc_config=0

Type:	float

T_approach¶

Cooling tower approach temperature [C]

Required: True if pc_config=0

Type:	float

dT_cw_ref¶

Reference condenser cooling water inlet/outlet T diff [C]

Required: True if pc_config=0

Type:	float

eta_ref¶

Reference conversion efficiency at design condition [none]

Required: True

Type:	float

n_pl_inc¶

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

Required: True if pc_config=0

Type:	float

pb_bd_frac¶

Power block blowdown steam fraction [none]

Required: True if pc_config=0

Type:	float

pc_config¶

Steam Rankine (224), 1: user defined [-]

Constraints: INTEGER

Required: If not provided, assumed to be 0

Type:	float
Type:	0

q_sby_frac¶

Fraction of thermal power required for standby mode [none]

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

tech_type¶

Turbine inlet pressure control flag (sliding=user, fixed=trough) [1/2/3]

Info: tower/trough/user

Required: True if pc_config=0

Type:	float

UserDefinedPC Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.UserDefinedPC¶

assign() → None¶

Assign attributes from dictionary

UserDefinedPC_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

ud_T_amb_des¶

Ambient temperature at user-defined power cycle design point [C]

Required: True if pc_config=1

Type:	float

ud_T_amb_high¶

High level ambient temperature for HTF mass flow rate parametric [C]

Required: True if pc_config=1

Type:	float

ud_T_amb_ind_od¶

Off design table of user-defined power cycle performance formed from parametric on T_amb [C]

Required: If not provided, assumed to be [[0]]

Type:	sequence[sequence]

ud_T_amb_low¶

Low level ambient temperature for HTF mass flow rate parametric [C]

Required: True if pc_config=1

Type:	float

ud_T_htf_high¶

High level HTF inlet temperature for T_amb parametric [C]

Required: True if pc_config=1

Type:	float

ud_T_htf_ind_od¶

Off design table of user-defined power cycle performance formed from parametric on T_htf_hot [C]

Required: If not provided, assumed to be [[0]]

Type:	sequence[sequence]

ud_T_htf_low¶

Low level HTF inlet temperature for T_amb parametric [C]

Required: True if pc_config=1

Type:	float

ud_f_W_dot_cool_des¶

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

Required: True 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: If not provided, assumed to be [[0]]

Type:	sequence[sequence]

ud_m_dot_htf_high¶

High level normalized HTF mass flow rate for T_HTF parametric [-]

Required: True if pc_config=1

Type:	float

ud_m_dot_htf_ind_od¶

Off design table of user-defined power cycle performance formed from parametric on m_dot_htf [ND]

Required: If not provided, assumed to be [[0]]

Type:	sequence[sequence]

ud_m_dot_htf_low¶

Low level normalized HTF mass flow rate for T_HTF parametric [-]

Required: True if pc_config=1

Type:	float

ud_m_dot_water_cool_des¶

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

Required: True if pc_config=1

Type:	float

Enet Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.Enet¶

assign() → None¶

Assign attributes from dictionary

Enet_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

eta_lhv¶

Fossil fuel lower heating value - Thermal power generated per unit fuel [MW/MMBTU]

Required: True

Type:	float

eta_tes_htr¶

Thermal storage tank heater efficiency (fp_mode=1 only) [none]

Required: True

Type:	float

AdjustmentFactors Group¶

class PySAM.TroughPhysicalCspSolver.TroughPhysicalCspSolver.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.TroughPhysicalCspSolver.TroughPhysicalCspSolver.Outputs¶

assign() → None¶

Assign attributes from dictionary

Outputs_vals = { var: val, ...}

export() → dict¶: Export attributes into dictionary

P_cooling_tower_tot¶

Parasitic power condenser operation [MWe]

Type:	sequence

P_fixed¶

Parasitic power fixed load [MWe]

Type:	sequence

P_out_net¶

Total electric power to grid [MWe]

Type:	sequence

P_plant_balance_tot¶

Parasitic power generation-dependent load [MWe]

Type:	sequence

P_tower_pump¶

Parasitic power receiver/tower HTF pump [MWe]

Type:	sequence

Q_thermal¶

Rec. thermal power to HTF less piping loss [MWt]

Type:	sequence

T_tes_cold¶

TES cold temperature [C]

Type:	sequence

T_tes_hot¶

TES hot temperature [C]

Type:	sequence

annual_W_cycle_gross¶

Electrical source - Power cycle gross output [kWhe]

Type:	float

annual_energy¶

Annual total electric power to grid [kWhe]

Type:	float

annual_total_water_use¶

cycle + mirror washing [m3]

Type:	float
Type:	Total Annual Water Usage

beam¶

Resource Beam normal irradiance [W/m2]

Type:	sequence

capacity_factor¶

Capacity factor [%]

Type:	float

conversion_factor¶

Gross to Net Conversion Factor [%]

Type:	float

defocus¶

Field optical focus fraction

Type:	sequence

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 func. 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_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_time¶

Dispatch solver time [sec]

Type:	sequence

disp_solve_time_ann¶

Annual sum of dispatch solver time

Type:	float

disp_tes_expected¶

Dispatch expected TES charge level [MWht]

Type:	sequence

disp_thermeff_expected¶

Dispatch expected SF thermal efficiency adj.

Type:	sequence

disp_wpb_expected¶

Dispatch expected power generation [MWe]

Type:	sequence

e_ch_tes¶

TES charge state [MWht]

Type:	sequence

eta_map_out¶

Solar field optical efficiencies

Type:	sequence[sequence]

flux_maps_out¶

Flux map intensities

Type:	sequence[sequence]

gen¶

Total electric power to grid w/ avail. derate [kWe]

Type:	sequence

htf_pump_power¶

Parasitic power TES and Cycle HTF pump [MWe]

Type:	sequence

is_pc_sb_allowed¶

is power cycle standby allowed

Type:	sequence

is_pc_su_allowed¶

is power cycle startup allowed

Type:	sequence

is_rec_su_allowed¶

is receiver startup allowed

Type:	sequence

kwh_per_kw¶

First year kWh/kW [kWh/kW]

Type:	float

m_dot_balance¶

Relative mass flow balance error

Type:	sequence

m_dot_pc¶

PC HTF mass flow rate [kg/hr]

Type:	sequence

m_dot_rec¶

Rec. mass flow rate [kg/hr]

Type:	sequence

m_dot_tes_ch¶

TES charge mass flow rate [kg/hr]

Type:	sequence

m_dot_tes_dc¶

TES discharge mass flow rate [kg/hr]

Type:	sequence

n_op_modes¶

Operating modes in reporting timestep

Type:	sequence

op_mode_1¶

1st operating mode

Type:	sequence

op_mode_2¶

2nd op. mode, if applicable

Type:	sequence

op_mode_3¶

3rd op. mode, if applicable

Type:	sequence

operating_modes_a¶

First 3 operating modes tried

Type:	sequence

operating_modes_b¶

Next 3 operating modes tried

Type:	sequence

operating_modes_c¶

Final 3 operating modes tried

Type:	sequence

pparasi¶

Parasitic power heliostat drives [MWe]

Type:	sequence

pricing_mult¶

PPA price multiplier

Type:	sequence

q_balance¶

Relative energy balance error

Type:	sequence

q_ch_tes¶

TES charge thermal power [MWt]

Type:	sequence

q_dc_tes¶

TES discharge thermal power [MWt]

Type:	sequence

q_dot_est_cr_on¶

Estimate rec. thermal power TO HTF [MWt]

Type:	sequence

q_dot_est_cr_su¶

Estimate rec. startup thermal power [MWt]

Type:	sequence

q_dot_est_tes_ch¶

Estimate max TES charge thermal power [MWt]

Type:	sequence

q_dot_est_tes_dc¶

Estimate max TES discharge thermal power [MWt]

Type:	sequence

q_dot_pc_max¶

Max thermal power to PC [MWt]

Type:	sequence

q_dot_pc_min¶

Thermal power for PC min operation [MWt]

Type:	sequence

q_dot_pc_sb¶

Thermal power for PC standby [MWt]

Type:	sequence

q_dot_pc_startup¶

PC startup thermal power [MWt]

Type:	sequence

q_dot_pc_target¶

Target thermal power to PC [MWt]

Type:	sequence

q_heater¶

TES freeze protection power [MWe]

Type:	sequence

q_pb¶

PC input energy [MWt]

Type:	sequence

q_pc_startup¶

PC startup thermal energy [MWht]

Type:	sequence

solzen¶

Resource Solar Zenith [deg]

Type:	sequence

tank_losses¶

TES thermal losses [MWt]

Type:	sequence

time_hr¶

Time at end of timestep [hr]

Type:	sequence

tou_value¶

CSP operating Time-of-use value

Type:	sequence

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TroughPhysicalCspSolver¶

Input Consistency Warning¶

Creating an Instance¶

Functions¶

Weather Group¶

Trough Group¶

TimeOfDelivery Group¶

SolarField Group¶

Controller Group¶

TouTranslator Group¶

Powerblock Group¶

UserDefinedPC Group¶

Enet Group¶

AdjustmentFactors Group¶

Outputs Group¶