The LPE is a energy carrier fuel that is better than compressed hydrogen, but worse than diesel.

Cold engines Expansion of the fuel is what drives both steam engines and internal combustion engines. Since you "ignite" it with electricity, it closely resembles a combustion engine with a spark plug. The stated energy density of 10 kJ per milliliter equals 10 Megajoules per liter, which is a comparable to the 15 MJ/l of Methanol fuel[1], but only has a third of the energy density of diesel. Compressed hydrogen is about 5 MJ/L. What's special about your magic fuel is that you don't say it's producing heat.

Expensive to produce The LPE is similar to hydrogen fuel in that it's not an energy source, but a carrier. The energy has to be produced elsewhere. Assuming you're working in a medieval setting, there's really not that many powerful energy sources, so your LPE can't revolutionize society. Sure you can retrofit windmills and watermills, but they won't deliver enough power to fuel say, an army of siege engines or a transport network of trains.

Everything is better with a boom Discounting large-scale transport, you can always use the LPE in place of dynamite and gunpowder. The rapid "combustion" of LPE makes it a good choice in this regard.

[1] http://en.wikipedia.org/wiki/Energy_density

The LPE is a energy carrier fuel that is better than compressed hydrogen, but worse than diesel.

Cold engines Expansion of the fuel is what drives both steam engines and internal combustion engines. Since you "ignite" it with electricity, it closely resembles a combustion engine with a spark plug. The stated energy density of 10 kJ per milliliter equals 10 Megajoules per liter, which is a comparable to the 15 MJ/l of Methanol fuel, but only has a third of the energy density of diesel. Compressed hydrogen is about 5 MJ/L. What's special about your magic fuel is that you don't say it's producing heat.

Expensive to produce The LPE is similar to hydrogen fuel in that it's not an energy source, but a carrier. The energy has to be produced elsewhere. Assuming you're working in a medieval setting, there's really not that many powerful energy sources, so your LPE can't revolutionize society. Sure you can retrofit windmills and watermills, but they won't deliver enough power to fuel say, an army of siege engines or a transport network of trains.

Everything is better with a boom Discounting large-scale transport, you can always use the LPE in place of dynamite and gunpowder. The rapid "combustion" of LPE makes it a good choice in this regard.