def lte_prod_rate(P, eta):
    """
    Low temperature electrolysis energy requirements and production rate.
    Parameters:
    -----------
    P: thermal power [MW]
    eta: themal-to-electric conversion efficiency
    Returns:
    --------
    pr: production rate [kg/h]
    see: sepecific energy [kWh(th)/kg-H2]
    """
    see = 60  # kWh(e)/kg-H2
    see /= eta
    pr = P/see*1e3
    return pr, see