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Table of available data parameters in the XML request:
parameter | description |
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GHI | Global Horizontal Irradiation [kWh/m2, Wh/m2, W/m2]. Regarding units see below note. |
GHI_C | Clear-sky Global Horizontal Irradiation [kWh/m2, Wh/m2, W/m2] |
GHI_UNC_HIGH | GHI high estimate (10 % prob. of exceedance) [kWh/m2, Wh/m2, W/m2] |
GHI_UNC_LOW | GHI low estimate (90 % prob. of exceedance) [kWh/m2, Wh/m2, W/m2] |
DNI | Direct Normal Irradiation [kWh/m2, Wh/m2, W/m2] |
DNI_C | Clear-sky Direct Normal Irradiation [kWh/m2, Wh/m2, W/m2] |
DIF | Diffuse Horizontal Irradiation [kWh/m2, Wh/m2, W/m2] |
GTI | Global Tilted Irradiation [kWh/m2, Wh/m2, W/m2] |
GTI_UNC_HIGH | GTI high estimate (10 % prob. of exceedance) [kWh/m2, Wh/m2, W/m2] |
GTI_UNC_LOW | GTI low estimate (90 % prob. of exceedance) [kWh/m2, Wh/m2, W/m2] |
GTI_C | Global tilted clear-sky irradiance [W/m2] |
CI_FLAG | Cloud identification quality flag [categories], this parameter is presented as 'flagR' in the response |
FLAG_R | alias for CI_FLAG |
KTM | Deprecated alias of KC. Can be discontinued in future versions. |
KC | Clear-sky index [unitless] |
KT | clearness index, values range (0, 1.1), during the night -9 |
PAR | Photo-synthetically Active Irradiation [kWh/m2, Wh/m2, W/m2] |
SE | Sun Altitude (Elevation) Angle [deg.] |
SA | Sun Azimuth Angle [deg.] |
TEMP | Air Temperature at 2m [deg. C] |
TD | Dew Point Temperature [deg. C] |
WBT | Wet Bulb Temperature [deg. C] |
AP | Atmospheric Pressure [hPa] |
RH | Relative Humidity [%] |
WS | Wind Speed [m/s] |
WD | Wind Direction [deg.] |
PREC | Precipitation Rate [kg/m2] |
PWAT | Precipitable Water [kg/m2] |
PVOUT | Photovoltaic Output [kW, kWh]. Regarding units see below note. |
PVOUT_UNC_HIGH | PVOUT high estimate (10 % prob. of exceedance) [kW, kWh] |
PVOUT_UNC_LOW | PVOUT low estimate (90 % prob. of exceedance) [kW, kWh] |
SDWE | Water equivalent of accumulated snow depth [kg/m2] |
SWE | Deprecated alias of SDWE. Can be discontinued in future versions. SDWE will be returned in a response. |
TMOD | Module temperature [deg. C]. This parameter needs a PV system defined in the request. |
WG | Wind Gust [m/s] |
WS100 | Wind speed at 100 m [m/s] |
WD100 | Wind direction at 100 m [deg.] |
SFWE | Water equivalent of fresh snowfall rate [kg/m2/hour] - source ERA5 , the latest data available is approx. one month backward (no data for very recent or forecast period) |
INC | Incidence angle of direct irradiance [deg.], this parameter needs GTI or PVOUT in the request |
TILT | Tilt of inclined surface [deg.], this parameter needs GTI or PVOUT in the request |
ASPECT | Aspect of inclined surface [deg.], this parameter needs GTI or PVOUT in the request |
For detailed parameter description see the /wiki/spaces/public/pages/14975030.
| Info |
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Units of solar and PV data parametersFor sub-hourly data the solar and PVOUT value typically represents instantaneous value (a power measured exactly at the given timestamp), so the PVOUT unit will be the kW (or W/m2 in case of solar irradiance). For hourly and bigger aggregation, the value represents the amount of energy accumulated or averaged within the agg. interval - the unit is the kWh (or Wh/m2, kWh/m2 in case of solar irradiation). |
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| Note |
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Timestamps used in the XML response comply with the ISO 8601 standard for date and time representation https://en.wikipedia.org/wiki/ISO_8601. Time stamps are also aware of time zone (offset from UTC). Time zone designators are appended after the the time part of timestamp string. If the time is in UTC (https://en.wikipedia.org/wiki/Coordinated_Universal_Time), Z is added directly after the time without a space. Z is the zone designator for the zero UTC offset e.g., 2017-09-22T01:00:00.000Z . If there is an offset from UTC, this is designated by appending +/-HH:MM after the timestamp string, e.g., 2017-09-22T01:00:00.000-05:00 (UTC-5). |
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