The estranged wife of a former Mighty River Power (MRP) engineer is appealing her convictions for helping him defraud the energy company.
Paul Rose, 44, was jailed for three years and two months in May for obtaining $2.2 million from MRP by deception.
His estranged wife, Jane Rose, was sentenced to nine months' home detention for assisting with some of the offending.
Paul Rose's job as an electrical engineer with MRP made him responsible for buying parts and organising services.
During his tenure, he set up companies that acted as a vendor to his employer. Although his employee agreement required him to disclose his conflict of interest, he did not.