The procedure for rehearings and appeals shall be that prescribed by RSA 541, except as herein otherwise provided. Notwithstanding N.H. Rev. Stat. § 541:5, upon the filing of a motion for rehearing, the commission shall within 30 days either grant or deny the motion, or suspend the order or decision complained of pending further consideration, and any order of suspension may be upon such terms and conditions as the commission may prescribe.