N.Y. Public Service Law § 66-C
4.
(a) Any subsidiary corporation established by an electric, gas or steam corporation pursuant to the authorization of subdivision three of this section shall comply with the following criteria:
(b) Any gas, electric or steam corporation affiliated with such a subsidiary corporation shall:
5. A subsidiary corporation established pursuant to the authorization of subdivision three of this section may have as an additional purpose the ownership and/or operation, in whole or in part, of one or more facilities located outside this state for the production of electric power and/or thermal energy, together with any land, work, system, building, improvement, instrumentality or thing necessary or convenient to the construction, completion or operation of any such facility, including also such transmission or distribution facilities located outside this state as may be necessary to conduct electricity or useful thermal energy to users located at or near a project site. Except as expressly provided herein, nothing in this subdivision shall be construed to modify, alter, limit, restrict, abrogate or enlarge the application of any other provision of this section. For the purposes of this subdivision, the term "facilities located outside this state for the production of electrical power and/or thermal energy" shall mean and include each of the following: