EVALUATION

AN INDEPENDENT EVALUATION OF THE LCNF
D.5 Fault Level Management
Fault Level Active Response (FLARE)
Project Title
Fault Level Active Response (FLARE)
Tier 2
DNO
Electricity North West
Status
New
LCNF project funding £4,425k
Project objectives FLARE has four objectives:
1. To trial the Fault Level Assessment Tool software;
2. To trial two technical and one commercial techniques which, when deployed on existing network infrastructure, will provide
effective and efficient fault level control;
3. To deliver novel and highly transferable solutions that can be applied to the HV and EHV networks by any GB DNO; and
4. To demonstrate release of network capacity allowing quick and lower cost connection for customers’ demand and
generation, enabling DNOs to support the UK’s decarbonisation strategy.
Assessment
Criteria
Accelerates the development of a low
carbon energy sector
Score
(1-5)
5
Overview of assessment, sources of evidence and comments
Assessment:
The project clearly facilitates the connection of low carbon generation or demand.
The carbon benefits are credible and quantified.
Evidence:
The project will avoid the need for reinforcement due to fault level constraints by using retrofitted
techniques and enable quicker connection of LCTs.
The full submission proforma states that FLARE could release 127,275MVA of capacity for the connection
of customers’ new low carbon generation and demand (across Great Britain) and 9,517MVA in the
Electricity North West area.
The full submission proforma provides a preliminary scoping of the carbon impact of Flare, which quantifies
carbon impacts in a number of graphs.
The 2013 IET technical report Electricity Networks – Handling a Shock to the System, states that
managing the impacts of high fault levels will become increasingly challenging.
References:
• FLARE full submission pro-forma.
PÖYRY MANAGEMENT CONSULTING
October 2016
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