The problem with EREVs is they are more complex than a BEV. More parts to go wrong, to purchase, and ultimately a (potentially) higher price.
The reason to do EREVs for a manufacture is, IMO, primarily because they can't get a hold of batteries for a cheap enough price. And I think that's the weakness of the way Ford has attacked EVs. They haven't (AFAIK) really built out battery plants. As a result, they are at the whims of their supplier for their battery packs.
For a truck like the F150, that's a large pack requirement that probably ultimately likely killed their margins.
Edit OK, they've been working on a plant for the last 5 years, but it looks like they've done almost nothing. Like, literally just have some support structs up.
Studies have shown that hybrids are more reliable than ICE vehicles - it turns out that using EV mode of the time and ICE less often increases reliability. No reason an EREV shouldn’t be even better.
Even if batteries were very cheap, you run into scaling issues where your battery pack ends up very heavy, so then you're using increasingly more energy to lug your heavier battery back around for everything that isn't long-range towing.
Are they really much more complicated than a hybrid? Think RAV4 Hybrid. I’d much prefer a fully electric drivetrain with an electric generator to the joyless CVT.
The reason to do EREVs for a manufacture is, IMO, primarily because they can't get a hold of batteries for a cheap enough price. And I think that's the weakness of the way Ford has attacked EVs. They haven't (AFAIK) really built out battery plants. As a result, they are at the whims of their supplier for their battery packs.
For a truck like the F150, that's a large pack requirement that probably ultimately likely killed their margins.
Edit OK, they've been working on a plant for the last 5 years, but it looks like they've done almost nothing. Like, literally just have some support structs up.