You obviously did not read the article. The truck is electric and the NG turbine is just for regenerating the battery packs. 2000 real HP to the drive wheels. Designed for doing the standard 80,000 lb gross thing that the majority of semi trucks are used for. This is NOT one of those NG engine things that some of the LTL carriers are using now. NG for this is only for electric generation with a designed 1200 mile range. Packs can also be shore power charged when the truck is not working. And the design is such that cargo capacities are similar for current trucks. Still be able to throw 46K lb in the box and not exceed gross.
I like the idea. Quiet, full torque all the way at the start (electric drive motors have full torque at the start), and not a single gear shift to be found... manual or auto. Direct drive electric motor. The initial cost is pretty high as they have proposed, but you can bet some serious tax advantages from the Gooberment will be available and the cost for NG to operate the turbine generator will be roughly half the fuel cost currently. If it can be justified on paper, I will likely take a serious look at this one for my next semi truck.
Why would a hazmat team be required for cleanup for one of these? No fuel spills, even in a rollover. NG just dissipates. And the CNG tanks are up behind the sleeper, so any normal accidents, the tanks are not affected in any way. Propane will pool up along ground and be a flame hazard. NG dissipates.