In the domestic residential sphere, energy consumption is concentrated at certain points of the day related to people's schedules and consumption habits; among them, at dusk, when most people return home at the end of the working day and use household appliances such as washing machines, ceramic hobs, etc.
This is what causes the so-called 'duck curve' to appear on our hourly consumption graph, named after the characteristic shape it has when it shows the peak in energy demand that appears at dusk.
However, as pronounced as this peak in energy demand may seem, it only lasts for a very short period of time, and during the remaining hours during which there is no solar photovoltaic generation, demand is relatively low and it is perfectly possible to cover all our energy demand outside of solar hours with solar batteries.
An average household with solar panels installed consumes between 5 and 10 kWh of electricity from the grid each day. This demand could be met by batteries that charge during daylight hours, so that as long as there is sunshine, a household with solar panels installed could end up never needing electricity from the grid.