Dyre Martin Gulbrandsen, Eress Director, said: As Spain puts the Erex system into production, we see this as another major milestone for the standardisation of settling traction energy throughout Europe. The Eress organisation has been working closely with ADIF to be able to take this step into the future. We have seen continual growth recently, and the fact that Spain is running its data on the Erex system again confirms that we are absolutely prepared to satisfy even the most demanding requirements.