This is significant for the average person, but it's truly revolutionary for Space travel.
If it's energy positive and 14 times faster than normal electrolysis, then you can use it on ships and submarines for power that lasts as long as you have water.
Those Warthog armoured cars in Halo that can turn water from anywhere into Hydrogen and use it as fuel are now possible. Theoretically if they can refine the system well enough and improve modern batteries, you could run almost anything on Hydrogen.
Countries in deserts can use this for irrigation, separate the Hydrogen in sea water, and since it turns both to gas, you can get rid of both salt and dissolved heavy metals like gold.
On top of this, you could use lithium air batteries that require oxygen in space craft with this.
Hydrogen can burn with both fluorine and chlorine instead of oxygen.
Rockets can theoretically get renewable fuel. The Moon has vast ice deposits. Mars has massive amounts of ice under the soil and on the poles.
Rockets could easily slowly generate hydrogen while feeding some back into a hydrogen reaction to power the reaction.
It's like having the power of the sea on your side!
Ideally, you could have rainwater collectors at home for free power.
Combined with those thermoelectric generators that can make power from even the heat of your car engine and now you can make electricity from sunlight, heat, wind, water and biofuel, all of which can be done at home to some degree.
I don't know how difficult this equipment is produce, but 10MHZ isn't high. Some diagnostic equipment for monitoring pregnancies can reach 15MHZ today.
Tesla was right to focus on producing batteries, you can use seawater for this after all, and the sound equipment doesn't need to be in contact with the saltwater either. Performing electrolysis is hardly difficult after all.
It seems pretty useful, I guess now that the world is sinning slightly less, breakthroughs like this are finally happening.