No, solar panels do not work at night. Solar panels rely on sunlight to generate electricity, and they stop producing electricity when there is no sunlight.
When a solar panel system is installed, it is typically connected to the grid, and during the day when the panels are generating electricity, any excess power is sent back to the grid for others to use. At night, or during periods of low sunlight, the house will draw power from the grid to meet its energy needs.
There are some systems that use batteries to store excess solar energy for use at night, but these systems can be expensive and may not be suitable for everyone. If you want to run your house on solar power at night, you may need to consider installing a battery system in addition to your solar panels.