RSA 374:7: Investigation of Other Utilities; Orders.

The commission and the department of energy shall have power to investigate and ascertain, from time to time, the quality of gas supplied by public utilities and the methods employed by public utilities in manufacturing, transmitting or supplying gas or electricity for light, heat or power, or in transmitting telephone and telegraph messages, or supplying water, and, after notice and hearing thereon, the commission shall have power to order all reasonable and just improvements and extensions in service or methods.