When triggered and usage drops below restore threshold, items are turned on irrespective of their power consuption.

[mavenius]

This leads to switches turning on and off repeatedly.

It appears that input_text.list_device_power_on is never changing from 'none'.

Or:

                    {% set device_power = device_off[repeat.index - 1] %}
                    {% if device_power is number %}
                    {{ (device_power | int(0) + states(power) | int(0)) < states('input_number.load_shedding') | int(0) }}
                    {% else %} 
                    true
                    {% endif %}

If device_power is not number, then this defaults to true. This would cause the issue.