---
title: How long does an installation take?
description: The installation of solar panels typically takes 1 to 3 days, depending on the size and complexity of the system. Your battery installation will take several hours. In most cases, the installation can be completed in less than a day.
---

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# How long does an installation take?

## The installation of your solar panels and home battery system typically takes a few days.

The mounting and installation of your energy system can take up to a few days, depending on size and complexity. In most cases, the installation can be completed in less than a day. Learn more about the installation process

**Can I start using my solar and battery system as soon as it's installed?**

No. First, your system will need to be inspected by the city to ensure that it meets code. With a passed inspection from the city, we will then work with your utility to file for a "permission to operate" or PTO. 

**Reserved a system through SGIP?** Once you're approved for an SGIP rebate, we can start your installation process (even before funds have been issued). Here's an overview on the SGIP application process.

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