This field is a list of the types of power production system(s) available on the property. The key characteristics of the system are expected to appear as the "[type]" in the related power production fields in a flattened implementation (RETS 1.x only) of the power production fields. A relational implementation of power production must omit the type from the field name and use PowerProductionType to create a vertical representation of the various types of power production available.
**Note that PV Solar is the only type of power production currently justified in multiple markets and thus shown. Up and coming renewables that could be added in the future depending on uptake: Wind, Geothermal, Thin Film Solar.