What is PD IEC/TS 62257-9-1 about?
The IEC 62257 series is a European standard that covers various aspects of recommendations for renewable energy and hybrid systems for rural electrification.
PD IEC/TS 62257-9-1 is the first part of the IEC 62257 series that specify Decentralized Rural Electrification Systems (DRES) are designed to supply electric power for sites that are not connected to a large interconnected system, or a national grid, in order to meet basic needs .
The majority of these sites are
Isolated dwellings
Village houses
Community services (public lighting, pumping, health centres, places of worship or cultural
activities, administrative buildings, etc.)
Economic activities (workshops, micro-industry, etc.)
The DRESs fall into the following three categories:
Process electrification systems (for example, for pumping)
Individual electrification systems (IES) for single users
Collective electrification systems (CES) for multiple users
Process or individual electrification systems exclusively consist of two subsystems:
An electric energy generation subsystem
The user's electrical installation.