(1) Any petitioner or any other public utility, assessor, or board of county commissioners adversely affected or the administrator may appeal any decision of the board of assessment appeals or the district court denying a petition in whole or in part to the court of appeals. No new or additional evidence may be introduced in the court of appeals unless such other public utility, assessor, or board of county commissioners adversely affected has had no opportunity to present such evidence at the hearing before the board of assessment appeals or at the trial in the district court; otherwise, the cause shall be heard on the record of the board of assessment appeals or the district court, which shall be certified by it to the court in which the appeal was taken. Whenever any new or additional evidence is introduced, the court, in its discretion, may remand the case to the board of assessment appeals or the district court for rehearing.

(2) An appeal may be taken to the court of appeals according to the Colorado appellate rules and the provisions of section 24-4-106 (11), C.R.S., after the decision of the board of assessment appeals or the district court is issued, but, if the appeal is taken by the public utility actually owning the property involved in the petition to the board of assessment appeals or the district court, such public utility shall pay the full amount of all taxes levied upon the valuation for assessment of its property and plant to the treasurer of the county in which the same is located prior to taking its appeal.

(3) If, upon appeal to the court of appeals, the petitioner is sustained, in whole or in part, then, upon presentation to the treasurer to whom the taxes were paid of a certified copy of the order modifying the valuation for assessment of its property and plant, the treasurer shall forthwith make the appropriate refund of taxes, together with refund interest at the same rate as delinquent interest as specified in section 39-10-104.5, and the petitioner shall also be entitled to a refund of costs incurred in the hearing before the board of assessment appeals or the trial in the district court and in the appeal to the court or such portion thereof as the court may decree; but, if judgment is for the board of assessment appeals, then the board of assessment appeals shall receive its costs from the appellant. Such refund interest shall only accrue from the date on which payment of taxes was received by the treasurer from the petitioner.