Crews began bringing in equipment this week. pacific Gas and Electric Co. spokeswoman Katie Allen said they're expected to start dismantling the remaining structures on site in June.
That dismantling is expected to last until the end of the Summer.
Allen said they'll remove water towers and clean up the property.
The work has been delayed since August, when debris from the implosion flew into a crowd, injuring several people.
Last month, PG&E was given permission to restart the demolition process with new contractors.
Allen said crews will also conduct soil analysis for the next two years.
"We are committed to cleaning up the historic impacts of our operations on site," Allen said.
Once the demolition is done, and the cleanup is complete Allen said PG&E will explore redevelopment options.
"PG&E is looking forward to ensuring this property is an asset to the community," said Allen. "That's our ultimate goal and we're really looking forward to it. This is a key step to revitalizing this property."