Introduction: This project investigates an alternative to substation batteries.

Objectives: The project is to evaluate the dependability, performance and application of the Pnu Power DC Supply Compressed Air Energy Storage System. This system offers a promising alternative to a traditional charger and battery system used for substation light current supplies. It could provide an alternative, reliable, low maintenance and environmentally friendly solution, which can provide a scaled and flexible DC output capability.

The project will consist of laboratory tests, type tests and a pilot installation and evaluation.