I read with interest your recent news item on the subject of liquefied air (Industry mulls potential of liquefied air as energy store).
You are correct about how this process operates and, for your added information, it has already been developed.
However, the story did not mention that a test plant is in operation close to London. We have visited the site, which is quite impressive.
The plant has been proven to regenerate between 50 per cent and 60 per cent of the inputted electricity.
We at Global Projects are in the process of developing numerous 50 MWe electrical biomass generation sites within the UK, Ireland and Europe and are looking at this technology besides others.
Our first site is on the UK’s east coast and will be up and running by this time next year.
But the developer of the cryogenics process, which I mentioned earlier, only wants to sell licences and we want a company to supply, build and commission this or any other relevant technology.
Yet it’s not the electricity surplus that concerns us. We have already been assured that no matter how much of it we can produce at each site, the electricity can be sold.
We would also still like to have this cryogenics process in our portfolio.
Rather, what concerns us is the unnecessary waste of heat energy to the atmosphere or by the installation of expensive cooling equipment.
Ideally, this heat should be used through a district heating system or by a private treaty supply. Unfortunately, owing to logistics, it will not be possible to do this on all of our sites.
So if a similar process can be found that uses heat, not electricity, to generate the liquid air storage and the same latter part of the cryogenics process, as previously mentioned, it has the potential to generate the desired electricity via turbines, which surely is the way forward.
Can any of your readers suggest a way forward in heat to liquefied air?
Martin Gee, design director, Global Projects Trading