  Recently using Particle-In-Cell simulations i.e. in the kinetic plasma
description Tsiklauri et al. and G\'enot et al. reported on a discovery of a
new mechanism of parallel electric field generation, which results in electron
acceleration. In this work we show that the parallel (to the uniform
unperturbed magnetic field) electric field generation can be obtained in much
simpler framework using ideal Magnetohydrodynamic (MHD) description, i.e.
without resorting to complicated wave particle interaction effects such as ion
polarisation drift and resulting space charge separation which seems to be an
ultimate cause of the electron acceleration. Further, in the context of the
coronal heating problem a new {\it two stage mechanism} of the plasma heating
is presented by putting emphasis, first, on the generation of parallel electric
fields within {\it ideal MHD} description directly, rather than focusing on the
enhanced dissipation mechanisms of the Alfv\'en waves and, second, dissipation
of these parallel electric fields via {\it kinetic} effects. It is shown that a
single Alfv\'en wave harmonic with frequency ($\nu = 7$ Hz), (which has
longitudinal wavelength $\lambda_A = 0.63$ Mm for putative Alfv\'en speed of
4328 km s$^{-1}$) the generated parallel electric field could account for the
10% of the necessary coronal heating requirement. We conjecture that wide
spectrum (10$^{-4}-10^3$ Hz) Alfv\'en waves, based on observationally
constrained spectrum, could provide necessary coronal heating requirement.
