Get Historic HSU Losses

The latitude of the location you request data for. Must be a decimal number between -90 and 90.

The longitude of the location you request data for. Must be a decimal number between -180 and 180.

Timezone to return in data set. Accepted values are utc, longitudinal, or a range from -13 to 13 in 0.25 hour increments for utc offset. Default is utc.

Length of the averaging period in ISO 8601 duration format. Default is PT30M.

Deposition or settling velocity of PM10 particulates. [m/s]. Default is 0.004.

Deposition or settling velocity of PM2.5 particulates. [m/s]. Default is 0.0009.

Optional. Restricted list of PM10 values. Concentration of airborne particulate matter (PM) with aerodynamic diameter less than 10 microns. [g/m^3]. If not provided, HSU endpoint will internally use Solcast's PM10 values tailored to your request time period.

Optional. Restricted list of PM2.5 values. Concentration of airborne particulate matter (PM) with aerodynamic diameter less than 2.5 microns. [g/m^3]. If not provided, HSU endpoint will internally use Solcast's PM2.5 values tailored to your request time period.

The angle (degrees) that the PV system is tilted off the horizontal. A tilt of 0 means the system faces directly upwards, and 90 means the system is vertical and facing the horizon. If you don't specify tilt, we use a default tilt angle based on the latitude you specify in your request. Must be between 0 and 90.

ISO_8601 compliant starting datetime for the historical data. If the supplied value does not specify a timezone, the timezone will be inferred from the time_zone parameter, if supplied. Otherwise UTC is assumed.

ISO_8601 compliant duration for the historical data. Must be within 31 days of the start_date. Only one of end or duration should be part of the request.

ISO_8601 compliant ending datetime for the historical data. Must be within 31 days of the start_date. Only one of end or duration should be part of the request. If the supplied value does not specify a timezone, the timezone will be inferred from the time_zone parameter, if supplied. Otherwise UTC is assumed.

Amount of daily rainfall required to clean the panels (mm). Default is 1.0.

Initial percentage of energy lost due to soiling at time zero in the rainfall series input. If not provided, Solcast will perform a ramp up series calculation to accurately determine this value. If provided must be >= 0 and < 0.3437.

Optional. Default is none. A list of ISO_8601 compliant dates or a repeating interval when manual cleaning of the panels occurred. A list of dates example: [2025-01-01,2025-01-05,2025-01-10]. A repeating interval example: R3/2025-01-01T00:00:00Z/P14D. Wash dates outside of the start and end of the request are discarded.

Response format. Default is HTML if not supplied.