In consenting to the laying, erecting, maintaining or using by an electric company, for the sole purpose of supplying electricity in bulk, of any wires for the transmission of electricity over or under streets, lanes and highways, as provided in section eighty-seven, the aldermen or selectmen may, in addition to the laws governing such companies, impose such other terms as they deem public interest requires, and upon an appeal under section eighty-eight, the department may, in addition to its authority under said section, affirm, amend, alter or add to the terms so imposed as it deems public interest requires.
Mass. Gen. Laws ch. 164, § 90