Work/worked for a place that was doing this. There's a couple problems:
* More battery weight means less cargo weight
* Trailers are dumb; the standard hookup (in NA) is lights and air. I hear CAN is common in EU though.
* Trailers are cheap and almost disposable.
The trucking industry is very slow moving, and probably 20 years behind passenger cars. So changing any of this stuff, even though none of it sounds particularly major, is at least 15 years out to start. Then you're left with the hundreds of thousands of "legacy" trailers that need to be retired or retrofit. The tractor to trailer ratio out there is like 1:10.
One interesting use case for this though is refrigerated (refer) trailers. They're often diesel-electric so they can plug in to shore power. Add a battery to this and maybe you can dump the diesel motor. Again though, weight is an issue... diesel is an order of magnitude more energy dense than the best batteries we have.
I'll bite I guess. I use Calibre pretty regularly. I think a general way to put it is that it's not for "casuals". To understand a lot of the functionality outside of the basic inventory management stuff, you have to be a little bit of an enthusiast. For some examples: You have to know about different ereaders and their formats and how they differ, the differences between metadata sources, and dozens and dozens of configuration options if you're trying to convert a book to work well on your device.
Also, there's definitely something "off" when it comes to using it intuitively. I have to devote a lot of brain power to searching for functionality AND trying to comprehend exactly how those pieces of functionality are going to affect my library data.
Maybe it's too powerful of a tool up front or something. It could benefit from a "basic view" maybe?
None of these are complaints from me, I'm a happy user. I'll just echo some other commenters in wishing for a more robust network interface (whether that's just an API, or a more hashed out front end). I'd like to easily share my library with people or just other devices while on-the-go, and Calibre has all the device formatting functionality built-in.
* More battery weight means less cargo weight
* Trailers are dumb; the standard hookup (in NA) is lights and air. I hear CAN is common in EU though.
* Trailers are cheap and almost disposable.
The trucking industry is very slow moving, and probably 20 years behind passenger cars. So changing any of this stuff, even though none of it sounds particularly major, is at least 15 years out to start. Then you're left with the hundreds of thousands of "legacy" trailers that need to be retired or retrofit. The tractor to trailer ratio out there is like 1:10.
One interesting use case for this though is refrigerated (refer) trailers. They're often diesel-electric so they can plug in to shore power. Add a battery to this and maybe you can dump the diesel motor. Again though, weight is an issue... diesel is an order of magnitude more energy dense than the best batteries we have.