Electricity bills are required to quote for solar panel installation because they provide a detailed assessment of a property’s energy usage. This allows solar installers to determine the correct size of the solar panel system needed to meet energy demands. The energy usage information from the electricity bill will also help installers accurately estimate the amount of electricity that the solar panel system will be able to generate. This information is essential to ensure that the solar panel system is cost–effective and will provide the necessary energy requirements for the property. Additionally, electricity bills may also be used to identify potential conservation measures that can be implemented to reduce the energy usage of the property, helping to further reduce the costs associated with the solar panel system.