EVALUATION

AN INDEPENDENT EVALUATION OF THE LCNF
Asset rating SPEN –
Implementation of
Real-Time Ratings
Plans for this technology over the next 15 years
originally depended on the connection requests
for wind farms via new or existing overhead line
networks. However, due to Government policy
changes, the number of connection requests for
onshore wind has been significantly reduced
compared to the time when the project was
conceived. The prime driver for Dynamic Line
Rating (DLR) is now the alleviation of
operational constraints on ≥132kV OHL
networks. DLR technology is being considered
for a 132kV interconnection between Barlaston
and Crewe. SPEN anticipates that by the end
of ED1/T1 they may have 1-2 circuits utilising a
DLR solution, with the expectation of several
others to follow in ED2/T2.
Fault Level
Management
Network
Configuration
ENWL – Fault
current active
management
SSEPN – Digital
substation platform
SPEN – Clyde
Gateway
ENWL – The
Bidoyng Smart Fuse
The learning from the trial of the innovative use
of existing protection assets as an alternative to
traditional methods and the use of existing and
new assets for fault current management is
being used in the RESPOND T2 project.
The project helped progress and inform the
future IT architecture required for substation
protection, control and monitoring. The learning
from this project has been used to inform
discussion between SSEPD and NGETSO on
the future ANM interface at GSPs and has
assisted with a proposal for an NIA project.
Over the course of ED1 and ED2 SPEN expects
LV automation to become cost effective, expand
in coverage and types of benefits. By the end of
ED2 they expect each DNO to possess
thousands of LV automation units.
ENWL has deployed 646 Bidoyngs on the
network (summer 2016)
NPG LV automation - restore supplies to a
significant number of customers following a
transient fault.
PÖYRY MANAGEMENT CONSULTING
October 2016
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