Yea, but how many years doe s it take to pay off the cost of installation. Also, what’s the lifespan.
For most of those systems, the equilibrium point is remarkably close to the product life cycle. often it’s well beyond.
As an example, the Chevy Volt was on the same chassis as the Chevy Cruze. The equilibrium for fuel saved is about 300,000 miles. I’m one of the few people I know who have saved a car that long and it was valueless at that point.
That’s part of the consideration. If the upfront costs are large, but the operating and replacement costs are low, it could be worth doing.
I liked the Volt in concept, but its batteries were too large as I recall. I hope it makes a comeback, but with smaller and lighter batteries.