Electricity storage partition screen

What are electrical energy storage systems (EESS)?

Electrical energy storage systems (EESS) for electrical installations are becoming more prevalent. EESS provide storage of electrical energy so that it can be used later. The approach is not new: EESS in the form of battery-backed uninterruptible power supplies (UPS) have been used for many years. EESS are starting to be used for other purposes.

What is the IET Code of practice for energy storage systems?

traction, e.g. in an electric vehicle. For further reading, and a more in-depth insight into the topics covered here, the IET’s Code of Practice for Energy Storage Systems provides a reference to practitioners on the safe, effective and competent application of electrical energy storage systems. Publishing Spring 2017, order your copy now!

How does a solar PV system reduce grid demand?

the energy generated by the solar PV system is used solely by the installation itself, which reduces the maximum demand from the grid ('peak lopping'), which may have the overall benefit of reducing grid demand at peak periods.

Do electronic supplies include overcurrent protection?

Purely electronic supplies may incorporate various forms of electronic overcurrent and/or overvoltage protection; however, these should be used in conjunction with suitably selected overcurrent protective devices such as fuses or circuit breakers in case electronic protection fails.

Why do electrical installations have multiple points of isolation?

there may be multiple points of isolation for circuits in the remainder of the electrical installation, particularly if the system is intended to operate off the grid. This presents a shock risk to those installing, maintaining and decommissioning the electrical installation as a whole, as well as the EESS in particular.