Let me give you a concrete example.

In Sunset (San Francisco), most houses still have 100–150 amp electrical panels. To support full electrification these panels typically need to be upgraded to 200 or maybe 300 amps.

That upgrade alone costs around $10,000, including labor, permitting (which is surprisingly expensive), and inspections. If rewiring the house is also required (which is often the case) that can push the total to $30,000.

But it doesn’t stop there. PG&E’s infrastructure in many areas like Sunset is already maxed out. If your upgrade triggers a red flag, PG&E may require additional capacity upgrades. However, they won’t pay for them (they’ll just refuse the work until you do). These utility-related infrastructure upgrades can cost anywhere from $25,000 to $50,000, and yes, those costs fall on the homeowner.

So in total, you could be looking at $60,000 or more for this.