Mo. Rev. Stat. § 523.025
If an electrical corporation as defined in section 386.020, except for an electrical corporation operating under a cooperative business plan as described in section 393.110, acquires any involuntary easement in this state by means of eminent domain and does not obtain the financial commitments necessary to construct a project for which the involuntary *easement was needed in this state within* seven years of the date that such easement rights are recorded with the appropriate county recorder of deeds, the corporation shall return possession of the easement to the fee simple title holder within sixty days and cause the dissolution of the easement to be recorded with the county recorder of deeds. In the event of such return of the easement to the title holder, no reimbursement of any payment made by the corporation to the title holder shall be due.
§ 523.025, RSMo