Additional electricity goes to battery backup: If your solar panels make extra electrical energy than you employ, the extra power is saved in a battery backup for later on use. Momentum Solar accepts income, financial loans, leases and PPAs, which covers all of the choices you’d get from other installers. https://www.americanarraysolar.com/what-questions-to-ask-solar-companies-in-california-you-shortlist-before-hiring/