N.H. Admin. Code § Puc 902.05
"Customer-Generator" means "eligible customer-generator" as defined in RSA 362-A:1-a, II-b, namely "an electric utility customer who owns, operates, or purchases power from an electrical generating facility either powered by renewable energy or which employs a heat led combined heat and power system, with a total peak generating capacity of up to and including one megawatt, that is located behind a retail meter on the customer's premises, is interconnected and operates in parallel with the electric grid, and is used to offset the customer's own electricity requirements. Incremental generation added to an existing generation facility, that does not itself qualify for net metering, shall qualify if such incremental generation meets the qualifications of this paragraph and is metered separately from the non-qualifying facility."
N.H. Admin. Code § Puc 902.05