Energy metering project is much more then merely installation of energy meters on board. It usually takes more than six months from the decision to install an energy meter(s) to the actual installation.
Some questions which could be helpful during the process
Decide
Which benefits we expect from energy metering project? Immediate savings? Savings in the future? Improved costs management? Improved driving styles? Enviromental impact? Benefits for company image? Can we add some other sensors to energy handling system (e.g. voltage meter)? Will we need more detailed measurments than once per 5 minut to analyse driving style / train management?
Design & Integrate
Does equipment, especially DHS, conform to EN50463(2017)? Are voltage or current sensors already installed of proper class and can be used for energy metering? Can existing mobile communication equipment sends data off-board according to EN50463? Do fleet engineers understand EMS design?
Certify
Which Notifying Body (NoBo) will perform EN50463 or TSI LOC&PAS assessment? Can we join efforts with RUs having same traction unit type and share costs of Design, Integration and Conformity Assessment?
Install
Where the equipment will be installed and how long it will take to be installed? Do workshop people have any experience in energy metering installation on-board? How EMS routine test will be performed?
Operate & Maintain
Where on-board equipment will be maintained? Is workshop experienced in maintaining energy metering equipment? What are the costs of DCS? Can the data be send directly to EREX server from DHS?
Manage
Will we be able to access the metered data? What for we will use data? Do we plan to introduce energy management system / software? Can we manage energy with existing IT systems? Is any person foreseen for energy management? Will we be able to define KPI?