The aim of an earthing system is to flow into the ground an electrical current. It can act properly only if its environment and itself are designed in a way to accept a high mobility of electrons and ions.
A better efficiency and a long-life time of the earthing systems can be brought by TEREC+, a compound which accelerates the ionic circulation in the ground.

TEREC+ allows to achieve low resistance earthing systems, with less long electrodes. It reduces significantly their cost and also installation cost (trench or drilling). It also makes the realization of earthing systems possible in unusable grounds without it