NEREA is a stable, compact, high-resolution spectrometer concept for the GTC. The spectrometer is designed with the aim of achieving two main science goals: the discovery and characterisation of planets around late-M type stars and the characterization of atmospheres from Hot-Jupiters to Super-earths. This talk has a double aim: First we shall present the science cases for NEREA and GTC, and invite the IAC community to get involved in the design and exploitation of such an instrument. Secondly we will present an early spectrometer preliminary design which follows a single-pass Echelle type layout and is fibre-fed with both, a rectangular 33µmX134µm science fibre and a 29µm calibration fibre. The system is designed to achieve a resolving power of 100,000 in the red-NIR regime (0.7-1.7µm). The device footprint is approximately 0.5mX1.5mX0.1m, allowing the system to be temperature and pressure stabilised (<50cm/s) in a small compact container. The concept applies a 430mmX120mm, R4 blazed, diffraction grating as the disperser and a 59.5°, P-SF67, prism as the cross-disperser. The system is designed to efficiently couple to GTCAO, assuming moderate performance of 0.3arcsec in our wavelength range.