"Small hydroelectric power net metering facility", a facility with a nameplate capacity of 2 megawatts or less, using water to generate electricity that is connected to a distribution company.
"Small hydro tariff", the default service kilowatt-hour rate of the local distribution company as defined in section 1 that receives electricity from a small hydropower facility or an anaerobic digestion net metering facility.
Mass. Gen. Laws ch. 164, § 139A