The Air source heat pump industry is evolving so rapidly it seems the technology for marine is behind. I wonder if the efficiency on land has already made current marine heating cooling devices, obsolete. The problem on a boat has always been the lack of electric power storage and generation. That's not going to change soon. I see their prototype is a wine cooler. That's a less challenging device than refrigeration that can also freeze. But it's still a breakthrough for those boat with lower refrigeration demands.

I'm testing the performance of air source heat pumps in my house and another project I'm working on. A few years ago heat pumps in Maine turned off as outside temps reached 0-F, or so. They lacked the efficiency that the newer technology is now supplying. At -14 all the pumps I'm watching were putting our 80+F air in heat mode. Their efficiency goes down with the temperature, but the efficiency overall is way beyond most any heat source in use today.

Until the new refrigeration tech you posted evolves to another level, it might be too little for the average boat that is an energy hog, today. If they can apply the tech to a large marine reefer system, that will really be popular!

Here's the good news and the bad news when it comes to Air source heat pump technology for home heating in Maine.

This is heating option calculator(photo) set at the average Maine home heating requirements. The good news, heat pump efficiency at optimal conditions is at 300%.

The bad news; the average Maine home requires more than a 1000 gallons of fuel oil to heat. Worse, the homes over the years have been configured to require inefficient distribution which adds to an abysmal overall efficiency.

I talk to people wanting to take advantage of the efficiency of the new heat pump tech. When I see how they live and heat, I have to tell them the new tech isn't for them(too costly to install the massive amount of gear). The heat loads the average Mainer lives, are still beyond reasonable use of the new heat pump technology. If your home heats well with a central woodstove- a heat pump will be very efficient. If you heat with a central source through an involved distribution system, it doesn't make as much sense, yet.

It all boils down to, conservation, until someone invents a miracle.