Summary Description. Assemble, install, or maintain solar photovoltaic (PV) systems on roofs or other structures in compliance with site assessment and schematics. May include measuring, cutting, assembling, and bolting structural framing and solar modules. May perform minor electrical work such as current checks.
IFERROR(value, value_if_error) The IFERROR function syntax has the following arguments: Value Required. The argument that is checked for an error. Value_if_error Required. The value to return if the formula evaluates to an error.
The Excel ISNA Function. The Excel #N/A error is produced when a value is not available to your formula. For example, if the Vlookup function is asked to look up the value '10' in a spreadsheet column, but there is no cell containing the value 10, the function will, instead, return the #N/A error.