Author: simon

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More case studies coming soon. Please check back.

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Successful outcomes and solutions

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Viking Link

LCA for a 1.4 Gigawatt HVDC converter station.

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As featured on the B1M

We have a pressing need for upgraded electrical infrastructure to support our green energy transition. Generation is moving from centralised power stations to decentralised renewables and backup. On the demand side, we’re electrifying everything: manufacturing, home-heating, transport.

Viking Link is a 1.4 Gigawatt, 765 km subsea HVDC (High Voltage Direct Current) interconnector in Lincolnshire that connects the UK to Denmark. Its HVDC converter equipment converts electricity to and from AC and DC – for import and export.

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New grid-scale facilities such as this are vital to the energy revolution, but they aren’t small – the civil engineering has a large carbon footprint.

All the clever equipment is housed in environmentally controlled buildings with process cooling and an AC yard. The wider site includes an access road over reclaimed fenland, a bridge, and an AC underground cable connecting the facility to the National Grid.

So, how do we build such facilities in the most sensitive and least wasteful way? The answer is LCA, or Lifecycle Carbon Assessment.

ICE-BERG undertook LCA as part of the BREEAM Infrastructure (CEEQUAL) assessment to the requirements of PAS 2080. This resulted in timely actions to reduce carbon emissions, benchmarking, and useful target setting for future projects. Alternative solutions were investigated along the way in partnership with other value-chain members.

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LCA

Lifecycle Carbon Assessment encompasses the “cradle to grave” impact, not just operational emissions.

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Lifecycle Carbon Assessment

To satisfy a truly green portfolio assessing whole life “cradle to grave” carbon emissions is vital. With LCA covering embodied carbon and in-use energy assessment we have the best way of assessing a building’s environmental impact throughout its lifespan. The key contribution that this process makes is its ability to take account of all sources of emissions associated with the building (including construction and end of life deconstruction), and not just those that arise from its use.

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LCA can be applied to both new-build and refurbishments. In fact, it comes down very favourably on the side of refurbishment. It’s simple really, the building is already built so not as much new concrete or steel. In carbon terms, it’s a bit like finding good quality second-hand stuff on Ebay. I’m always fascinated by buildings with a history, so it’s great to find extra motivation to preserve these histories with LCA providing a large motivation. Let’s re-invent these spaces and realise new value by transforming them into modern day spaces.

LCA’s scope covers the raw materials, manufacturing and transport to site, fuel and energy on-site, in-use energy and water, repair and maintenance during the building’s lifespan and end of life decommissioning. Even the benefits of biogenic carbon sequestration (a posh way of saying tree-planting) can be accounted for!

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More stuff

For tips, tricks, and discussion, please check back soon.

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is coming soon!

There will be discussion, thought peices, coding and hacks. So please check back regularly.

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