Recovering and de-risking a 500 MW grid-scale storage design, mid-construction, under acute programme pressure.
DACI Utilities Engineering Consultancy was appointed to Devilla Wood (EHV-0170), a 500 MW / ~1 GWh grid-scale Battery Energy Storage System connecting to SP Transmission (SPEN) at 275 kV.
DACI Utilities Engineering Consultancy was appointed to Devilla Wood (EHV-0170), a 500 MW / ~1 GWh grid-scale Battery Energy Storage System connecting to SP Transmission (SPEN) at 275 kV.
DACI joined mid-programme, after civil works had already begun on site and the previous design team had been stood down. DACI assumed responsibility for the full electrical, cabling, civil and power system design: validating the inherited work, flagging and resolving a series of significant defects, and delivering a complete, compliant and adoptable design without disrupting the live construction sequence.
DACI inherited a part-complete design of inconsistent quality while construction was already live on site. The task was to take engineering ownership of work it had not originated: assure what was sound, expose what was not, and complete a compliant design at pace, without holding up the site.
Rather than restart the design, DACI ran a structured validation across every inherited scope, isolating defects early and ranking them by construction impact. Corrected and completed designs were then progressed in parallel, so site works continued while design gaps were closed behind them.
DACI resolved every inherited issue and delivered a complete, compliant, adoptable design, running ahead of programme on most workstreams, several by over a month, despite joining mid-construction.
Devilla Wood adds 500 MW / ~1 GWh of flexible grid-scale storage at 275 kV transmission level, supporting network stability and the integration of large-scale renewable generation.
The design assurance and recovery methodologies proven here are directly transferable to other distressed and time-critical BESS and transmission schemes across the UK.
Devilla Wood demonstrates DACI's ability to step into a distressed, mid-construction design, take full engineering ownership across disciplines, and recover it to a compliant, high-performing outcome under acute time pressure.
DACI Utilities Engineering Consultancy · EHV Department · Project EHV-0170
DACI Utilities Engineering Consultancy played a leading role in the delivery of the Iron Acton Battery Energy Storage System (BESS), a 120MW grid-scale development designed to support network stability and enable the integration of renewable energy at transmission level.
DACI played a pivotal role in supporting Kirby's in the early stages of The Windyhill substation which is currently in the process of being retrofitted to a 275kV Substation.
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