Nameplate capacity – Nanoengineering – Nanoinverter – Nanomotor – Nanotechnology – National electric code – National Electrical Manufacturers Association (NEMA) – Natural gas – Negative feedback – Negative resistance – Negawatt power – Nelson River Bipole – Neodymium magnets – Neon sign – Neon-sign transformer – Net metering – Network analyzer (AC power)-- Network cable – Network protector – Neural networks – Newcastle-upon-Tyne Electric Supply Company – Niagara Falls – Nodal analysis – Node (circuits) – Noise cancelling – Noise reduction – Nominal impedance – Nonlinear control – Nonode – Norton theorem – Norton's theorem – Notch filter – NTSC – Nuclear power – Numerical control – Nuvistor – Nyquist frequency – Nyquist stability criterion – Nyquist–Shannon sampling theorem –