Detailed Time-Series Results File ("TimeSeriesResults.tsv")
One of the output files from the cloud is the advanced output file "TimeSeriesResults.tsv". This file is only available when set to be exported via scripting. Below there is a description of the content of such file. The number of columns will depend on the type of simulation (2D or 3D), design considerations of the PV system (e.g., fixed-tilt or horizontal single-axis tracking; and monofacial or bifacial module technology) and diffuse irradiance model.
The table below identifies some of the variables as Case 0 or Case N
. These refer to different shading cases. Each shading case represents shading results for a specific module along the height of a rack/tracker in either an unshaded or shaded row for the front and back sides of the modules.
Content of "TimeSeriesResults.tsv"
Variable name | Description | Design type | Diffuse model |
---|---|---|---|
StartOfPeriod | Timestamp for the start of the period. | All | All |
PeriodInMinutes | Duration of the period in minutes. | All | All |
UTCDateTimeForSolarPos | Timestamp in UTC used for the estimation of the solar position. | All | All |
SolarAzimuth [deg] | The sun's azimuth angle (in degrees) at UTCDateTimeForSolarPos . |
All | All |
SolarZenith [deg] | The sun's zenith angle (in degrees) at UTCDateTimeForSolarPos . |
All | All |
TrackerCaseN Rotation [deg] |
Rotation angle in degrees of the tracker case N . |
Horizontal single-axis trackers | All |
TrackerCaseN BacktrackingState |
Operational state of the backtracking algorithm for tracker case N . |
Horizontal single-axis trackers | All |
GHI [W/m2] | Global horizontal irradiance in W/m2. | All | All |
DHI [W/m2] | Diffuse horizontal irradiance in W/m2. | All | All |
DNI [W/m2] | Direct normal irradiance in W/m2. | All | All |
Albedo [1] | Surface albedo in per unit. | All | All |
solarAziAtStartOfPeriod [deg] | The sun's azimuth angle (in degrees) at the start of the period. | All | All |
solarZenithAtStartOfPeriod [deg] | The sun's zenith angle (in degrees) at the start of the period. | All | All |
solarAziAtEndOfPeriod [deg] | The sun's azimuth angle (in degrees) at the end of the period. | All | All |
solarZenithAtEndOfPeriod [deg] | The sun's zenith angle (in degrees) at the end of the period. | All | All |
POACase0FrontcosineAOI | Cosine of the angle of incidence considered for the global plane-of-array irradiance reference case (case 0). Refers to the front side of the modules. | All | All |
POACase0FrontAOI [deg] | Angle of incidence considered for the global plane-of-array irradiance at the front of the module in reference case (case 0). | All | All |
POACase0FrontExtraterrestrialIrradiance [W/m2] |
Extraterrestrial irradiance (in W/m2) at time UTCDateTimeForSolarPos . |
All | All |
POACase0Fronta | Coefficient a in Perez diffuse irradiance in the front side of the modules. |
All | Perez, PerezEmulatePVsyst |
POACase0Frontb | Coefficient b in Perez diffuse irradiance in the front side of the modules. |
All | Perez, PerezEmulatePVsyst |
POACase0FrontairMass | Air mass. Parameter used for the Perez diffuse irradiance model in the front side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0Frontbrightness | Brightness value used for the Perez diffuse irradiance model in the front side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FrontsunZenithCubed | Value of the zenith cubes (power 3). Used within the Perez diffuse irradiance model. | All | Perez, PerezEmulatePVsyst |
POACase0Frontclearness | Sky's clearness. Parameter used within the Perez diffuse irradiance model. Refers to the front side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FronthorizonCoefficientF2 | Horizon coefficient F2 used for the Perez diffuse irradiance model. Refers to the front side of the modules. |
All | Perez, PerezEmulatePVsyst |
POACase0FrontcircumsolarCoefficientF1 | Circumsolar coefficient F1 . Parameter used for the Perez diffuse irradiance model. Refers to the front side of the modules. |
All | Perez, PerezEmulatePVsyst |
POACase0FrontisotropicDiffuse [W/m2] |
Isotropic diffuse irradiance for the reference case. Refers to the front side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FronthorizonDiffuse [W/m2] |
Horizon diffuse irradiance for the reference case. Refers to the front side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FrontnonCircumsolarIrradianceInInclinedPlane [W/m2] |
Circumsolar irradiance in the tilted plane for the reference case. Refers to the front side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FrontcosTilt | Cosine of the module (front side) tilt angle used in the Hay and Davies diffuse irradiance model. | All | Hay |
POACase0FrontcosIncident | Cosine of the sun's incident (front side) angle used in the Hay and Davies diffuse irradiance model. | All | Hay |
POACase0FrontcosZenith | Cosine of the solar zenith angle used in the Hay and Davies diffuse irradiance model. Refers to the front side of the modules. | All | Hay |
POACase0FrontincidentZenithRatio | Ratio of the sun's incident angle to the solar zenith angle used in the Hay and Davies diffuse irradiance model. Refers to the front side of the modules. | All | Hay |
POACase0FrontanisotropyIndex | Anisotropy index. Parameter in the Hay diffuse irradiance model. Refers to the front side of the modules. | All | Hay |
POACase0FronttiltTerm | Tilt term in the Hay and Davies diffuse irradiance model. Refers to the front side of the modules. | All | Hay |
POACase0FrontPlaneOfArrayDiffuse [W/m2] |
Diffuse plane-of-array irradiance for the reference case. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDirect [W/m2] |
Direct or beam plane-of-array irradiance for the reference case. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayReflected [W/m2] |
Reflected irradiance in the plane of array for the reference case. Refers to the front side of the modules. | All | All |
POACase0FrontTotalPOA [W/m2] |
Total or global (effective) plane-of-array irradiance for the reference case. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDirectAfterHorizon [W/m2] |
Direct or beam plane-of-array irradiance for the reference case accounting for horizon losses. Refers to the front side of the modules. | All | All |
POACase0FrontTotalPOAIncHorizon [W/m2] |
Global plane-of-array irradiance for the reference case accounting for horizon losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDirectIncSoiling [W/m2] |
Direct or beam plane-of-array irradiance for the reference case accounting for soiling losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDiffuseIncSoiling [W/m2] |
Diffuse plane-of-array irradiance for the reference case accounting for soiling losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayReflectedIncSoiling [W/m2] |
Reflected irradiance in plane of array for the reference case accounting for soiling losses. Refers to the front side of the modules. | All | All |
POACase0FrontTotalPOAIncSoiling [W/m2] |
Global plane-of-array irradiance for the reference case accounting for soiling losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDirectIncIam [W/m2] |
Direct or beam plane-of-array irradiance for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDiffuseIncIam [W/m2] |
Diffuse plane-of-array irradiance for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayReflectedIncIam [W/m2] |
Reflected irradiance in plane of array for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the front side of the modules. | All | All |
POACase0FrontTotalPOAIncIam [W/m2] |
Global plane-of-array irradiance for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDirect IncSpectral [W/m2] |
Direct or beam plane-of-array irradiance for the reference case accounting for spectral losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayDiffuse IncSpectral [W/m2] |
Diffuse plane-of-array irradiance for the reference case accounting for spectral losses. Refers to the front side of the modules. | All | All |
POACase0FrontPlaneOfArrayReflected IncSpectral [W/m2] |
Reflected irradiance in plane of array for the reference case accounting for spectral losses. Refers to the front side of the modules. | All | All |
POACase0FrontTotalPOAIncSpectral [W/m2] |
Global plane-of-array irradiance for the reference case accounting for spectral losses. Refers to the front side of the modules. | All | All |
POACase0BackcosineAOI | Cosine of the angle of incidence considered for the global plane-of-array irradiance reference case (case 0). Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackAOI [deg] | Angle of incidence considered for the global plane-of-array irradiance at the back of the module in reference case (case 0). | Bifacial modules | All |
POACase0BackExtraterrestrialIrradiance [W/m2] |
Extraterrestrial irradiance (in W/m2) at time UTCDateTimeForSolarPos . |
Bifacial modules | All |
POACase0Backa | Coefficient a in Perez diffuse irradiance in the back side of the modules. |
Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0Backb | Coefficient b in Perez diffuse irradiance in the back side of the modules. |
Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0BackairMass | Air mass. Parameter used for the Perez diffuse irradiance model in the back side of the modules. | Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0Backbrightness | Brightness value used for the Perez diffuse irradiance model in the back side of the modules. | Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0BacksunZenithCubed | Cubed value of the solar zenith angle. Used as part of the Perez diffuse irradiance model. | Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0Backclearness | Sky's clearness. Parameter used within the Perez diffuse irradiance model. Refers to the back side of the modules. | Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0BackhorizonCoefficientF2 | Horizon coefficient F2 used for the Perez diffuse irradiance model. Refers to the back side of the modules. |
Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0BackcircumsolarCoefficientF1 | Circumsolar coefficient F1 . Parameter used for the Perez diffuse irradiance model. Refers to the back side of the modules. |
Bifacial modules | Perez, PerezEmulatePVsyst |
POACase0FrontisotropicDiffuse [W/m2] |
Isotropic diffuse irradiance for the reference case. Refers to the back side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FronthorizonDiffuse [W/m2] |
Horizon diffuse irradiance for the reference case. Refers to the back side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FrontnonCircumsolarIrradianceInInclinedPlane [W/m2] |
Circumsolar irradiance in the tilted plane for the reference case. Refers to the back side of the modules. | All | Perez, PerezEmulatePVsyst |
POACase0FrontcosTilt | Cosine of the module (back side) tilt angle used in the Hay and Davies diffuse irradiance model. | Bifacial modules | Hay |
POACase0FrontcosIncident | Cosine of the sun's incident (back side) angle used in the Hay and Davies diffuse irradiance model. | Bifacial modules | Hay |
POACase0FrontcosZenith | Cosine of the solar zenith angle used in the Hay and Davies diffuse irradiance model. Refers to the front side of the modules. | Bifacial modules | Hay |
POACase0FrontincidentZenithRatio | Ratio of the sun's incident angle to the solar zenith angle used in the Hay and Davies diffuse irradiance model. Refers to the front side of the modules. | Bifacial modules | Hay |
POACase0FrontanisotropyIndex | Anisotropy index. Parameter in the Hay diffuse irradiance model. Refers to the front side of the modules. | Bifacial modules | Hay |
POACase0FronttiltTerm | Tilt term in the Hay and Davies diffuse irradiance model. Refers to the front side of the modules. | Bifacial modules | Hay |
POACase0BackPlaneOfArray Diffuse [W/m2] |
Diffuse plane-of-array irradiance for the reference case. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackPlaneOfArray Direct [W/m2] |
Direct or beam plane-of-array irradiance for the reference case. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackPlaneOfArray Reflected [W/m2] |
Reflected irradiance in the plane of array for the reference case. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackTotalPOA [W/m2] |
Total or global (effective) rear-side irradiance before losses for the reference case. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackPlaneOfArrayDirectAfterHorizon [W/m2] |
Direct or beam plane-of-array irradiance for the reference case accounting for horizon losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackTotalPOAIncHorizon [W/m2] |
Global rear-side irradiance for the reference case accounting for horizon losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackTotalPOAIncSoiling [W/m2] |
Global rear-side irradiance for the reference case accounting for soiling losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackPlaneOfArray DirectIncIam [W/m2] |
Direct or beam plane-of-array irradiance for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackPlaneOfArray DiffuseIncIam [W/m2] |
Diffuse plane-of-array irradiance for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackPlaneOfArray ReflectedIncIam [W/m2] |
Reflected irradiance in plane of array for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackTotalPOAIncIam [W/m2] |
Global rear-side irradiance for the reference case accounting for incidence angle modifier (IAM) losses. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackTotalPOAInc BifacialShading [W/m2] |
Total or global rear-side irradiance for the reference case accounting for shading losses derived from the bifacial shade loss factor. Refers to the back side of the modules. | Bifacial modules | All |
POACase0BackTotalPOAInc TransmissionFactor [W/m2] |
Total or global rear-side irradiance for the reference case accounting for losses derived from the transmission factor. Refers to the back side of the modules. | Bifacial modules | All |
ShadingCaseN DirectUnshadedFractionOfSubModule |
The fraction of the sub-module that is un-shaded for case N . |
2D calculations | All |
ShadingCaseN DirectUnshadedFractionOfMostShadedCell |
The fraction of the bottom cell in the sub-module that is un-shaded for case N . |
2D calculations | All |
ShadingCaseN SkyDiffuseMultiplier |
The proportion of the sky that is not obscured for case N . This is relative to the proportion of that that would be visable to the tilted plane, if the horizon was unobscured over the 180deg in-front of the array. |
2D calculations | All |
ShadingCaseN GroundDiffuseShadingMultiplier |
Irradiance multiplier for case N to account for the ground being shaded and receiving less than the full DHI. |
2D calculations | All |
ShadingCaseN GroundObscurationMultiplier |
Irradiance multiplier for case N to account for adjacent rows blocking the view of the ground from the module. |
2D calculations | All |
ShadingCaseN GroundBeamUnshadedFraction |
The fraction of the ground that is not shaded for case N , i.e., width of unshaded strip / pitch. |
2D calculations | All |
ShadingCaseN GroundBeamShadingMultiplier |
Irradiance multiplier for case N to account for the beam shading of the ground and obscuration of the unshaded ground by other rows. |
2D calculations | All |
ShadedPOAForCaseN [W/m2] |
Shaded POA Irradiance for substring case N . Refers to the front side of the modules. |
2D calculations | All |
MostShadedCellPOACaseN [W/m2] |
POA irradiance at the most shaded cell in substring case N . Refers to the front side of the modules. |
2D calculations | All |
shadedIrradianceForSubStringCaseN [W/m2] |
Shaded irradiance for substring case N . |
2D calculations | All |
irradianceAfterBifacialityFactor ForSubStringCase N [W/m2] |
Irradiance level after applying the bifaciality factor for substring case N |
2D calculations with bifacial modules. | All |
irradianceAfterBifacialMismatch ForSubStringCase N [W/m2] |
Irradiance level after applying the bifacial mismatch losses factor for substring case N |
2D calculations with bifacial modules. | All |
irradianceAfterTakingMostShadedCell ForSubStringCase N [W/m2] |
Irradiance considering the most shaded cell for substring case N . |
2D | All |
TotalPowerFromStringMpps [W] | The total array power based on the MPP of each string. | All | All |