ENERGY STORAGE IS NEEDED TO BRIDGE THE GAP BETWEEN INDUSTRIAL ENERGY DEMAND AND SUPPLY
It balances energy generation and demand particularly as more intermittent renewables enter the mix
It enables greater renewable penetration by
storing the surplus energy
demand for energy storage rapidly outstripping supply
lithium-ion batteries are widely used, but remain uneconomic for many consumers and suffer from performance, lifespan and disposal issues
there is real need for cost effective and efficient means of storing energy at point of industrial use or "behind the meter"
INDUSTRIAL COMPRESSED AIR PRODUCTION USES AN IMMENSE AMOUNT OF ENERGY
10 - 12% of global industrial electricity is consumed by air compressors
10 TWh is the power consumed by air compressors in the UK annually. Equivalent to 3.5M tonnes of CO2 emissions and the energy produced annually to put 500,000 electric cars on the road
4,500 air compressors in the UK are over 100kW
WE HAVE THE SOLUTION
The PRISMA AIR BATTERY integrates industrial energy storage with industrial compressed air. This combination creates a unique new type of energy storage system that provides flexibility and improves the performance of standard industrial processes.
The AIR BATTERY can be used across most industrial sectors including
aggregates, food and drink, pharma and plastics.
Energy storage of this type and application does not currently exist.
PRISMA represents a transformative step-change in the way
industry consumes energy.
EASILY LOCATED AT POINT OF USE
EASY TO MAINTAIN
HALF THE COST OF BATTERIES
THE AIR BATTERY
Inside the AirBattery are two main parts. The thermal storage vessel is filled with a specially formulated material that stores a huge amount of cold air at -150C. This cold store allows us to liquify air and store it in the liquid air vessel ready for use on-demand.
In industry, every kg of compressed air uses about 0.15 kWh of electricity. Each AirBattery stores 1000kg, or 150kWh’s worth of air.
PRISMA CONCEPT IS SIMPLE
PRISMA charges up using cheaper off-peak electricity creating a store of cold liquid air that can then be discharged to provide hours' worth of compressed air, allowing energy hungry air compressors to be turned off, during times of peak expensive electricity.
expected payback time
lifespan of Prisma
the amount of energy stored in 1 Air Battery
up to 60%
energy savings and increased hours of backup storage
HOW IT WORKS
ENERGY RECYCLING IS KEY TO PRISMA'S EFFICIENCY
PRISMA contains a high efficiency air compressor coupled with a unique air liquefaction and storage vessel that holds 150 times the amount of energy as liquid air compared to existing compressed air storage.
At the heart of the PRISMA system is advanced liquid and thermal storage technologies that store cold energy (or "coolth", as we like to call it, the opposite of warmth) and return it for later use.
During charging, the liquid air store is supplied with ambient temperature compressed air. This air is then chilled to -150C through the "sensible coolth store" to the condensation point where liquefaction begins.
In the same vessel, this saturated air passes to the second "latent coolth store" which contains our unique phase change material (PCM) and there the air is fully liquefied and can be stored for long periods in the integrated vacuum insulated tank.
When required, the whole cycle runs in reverse - the liquid air passes back through the latent coolth store where it picks up the stored heat removed from the charging process and becomes gas. It then passes back through the sensible coolth where it again picks up stored heat to then discharge as usable ambient temperature compressed air.