Before revision:  When using a spatial and vertical temporal discretisation that preserve the skew-symmetric structure of the non-canonical Hamiltonian form of the equations of motion , this scheme allows for the exact balance of all energetic exchanges in space and time.
After revision:  The new HEVI scheme is implemented in conjunction with a mixed mimetic spectral element spatial discretisation and semi-implicit vertical time stepping scheme that both preserve the skew-symmetric structure of the non-canonical Hamiltonian form of the equations of motion , this scheme allows for the exact balance of all energetic exchanges in space and time.