def ktoe_to_gwh(ktoe):
    """Conversion of ktoe to gwh. As ECUK input
    ktoe per year are provided, which are converted
    into GWh per year.

    Arguments
    ----------
    ktoe : float
        Energy demand in ktoe

    Returns
    -------
    gwh : float
        Energy demand in GWh

    Notes
    -----
    https://www.iea.org/statistics/resources/unitconverter/
    """
    gwh = ktoe * 11.63
    return gwh
