PG&E, which provides electricity and natural gas to 16 million customers in northern and central California, faces widespread litigation, government investigations and liabilities related to wildfires that could potentially exceed $30 billion.

In a filing with the U.S. securities and exchange commission, the company said it expects to spend between $5.7 billion and $7 billion annually from 2020 to 2023.

PG&E expects capex to be about $6.5 billion for fiscal 2018.

The company said on Tuesday it secured $5.5 billion in financing from four banks as it prepares to file for Chapter 11 bankruptcy protection.

(Reporting by Debroop Roy in Bengaluru; Editing by Arun Koyyur and Anil D'Silva)