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How Implenia is Optimizing Site Selection and Planning for an Offshore Wind Farm with ALICE

Production facility - Renewable energy farm, Norway | Implenia

The Challenge

Windworks Infrastructure is a collaboration between NorSea Impact and Implenia Norge, which is helping to find and develop a production facility to build concrete foundations for floating offshore wind farms.

Windworks Infrastructure is currently exploring several locations to decide on the most feasible and efficient location. The ideal site would be harbourside in southwestern Norway to capitalize on business across the North Sea by reducing the amount of additional transportation and carbon output required for the foundations to be placed in situ.

Implenia needs to find a site for the serial production of wind turbine foundations that will yield up to one gigawatt of energy generation per year once operational. To meet this requirement, a number of questions were raised:

  • What is the most efficient site layout for constructing and moving the foundations?
  • Is one or two launching corridors the optimum solution for increased productivity on-site?
  • How can on-site resilience be improved?

Implenia WindWorks Jelsa

The Solution

To explore these questions, Implenia turned to ALICE Technologies. Implenia Norway was first introduced to the software when it was part of the global Implenia group asked to test ALICE during the Tangenvika railway bridge project. This €199.37 million double-track project spanned 1,022 metres over a 2 km wildlife overpass, and was built to connect Espa and the Tangenvika bay.  Additional considerations had to be made because it is constructed over Lake Mjøsa, which is a source of drinking water for the local community. This bridge is part of a wider stretch of railway spanning 29.7km which is under construction until 2027.

After using the technology to increase the efficiency of the construction site, Implenia wanted to introduce ALICE to its other major projects, including the Windworks Infrastructure.

ALICE enables Implenia to understand how long a project will take, what it will cost and what is needed to deliver it. Because ALICE is parametric, the scheduling models can be adapted throughout the project whenever something changes.

Implenia is using ALICE to assess the feasibility of different sites and identify best practice approaches – even at sites where there is a finite amount of space in which the foundations can be constructed. And since the size of the foundations are large, it limits the number of workstations that can be created and utilised.

"ALICE allows us to efficiently study layout variations and optimize foundation build times and enhance certainty around project outcomes. ALICE’s AI insights support our decision-making process by providing clear and actionable data."

Implenia - Adrianus Pas Adrianus Pas Project Director, Implenia

Once each foundation is built, it takes time for that foundation to be transported before a new foundation can be built at that workstation. ALICE is being used to test new constraints specific to each site – calculating the distance of movement for each foundation, and the speed of transportation.

“What separates ALICE from more traditional planning tools is that previously, we could only produce one or two time schedules,” explained Ahmed Rashid, head of planning at Implenia. “Now, we can give ALICE all the information we want and create maybe ten different time schedules and scenarios that we can modify in real time.”

Adrianus Pas, project director at Implenia, added: “ALICE allows us to efficiently study layout variations and optimize foundation build times and enhance certainty around project outcomes. ALICE’s AI insights support our decision-making process by providing clear and actionable data.”

The Results

At the initial testing phase, ALICE found that most sites could create a baseline level of foundations needed each year. Through the optioneering process, Implenia can test different scenarios to see where productivity gains could be made, adjusting various factors along the way.

During the current planning stages, ALICE is helping to prove the value of having optimized, data-backed schedules. Implenia now has the insight to be able to prove that they can meet the desired production targets in a range of possible locations.

Implenia can also go a step further by highlighting possible cost and time savings that others may not have considered, such as site configuration, transport method and timing of the transportation of materials between workstations.

Implenia is finding that the planning process is ten times faster than their traditional methods. And through optimization with ALICE, Implenia is also able to boost potential foundation production levels considerably.

About

Implenia is Switzerland's leading construction and real estate service provider, specializing in the development and civil engineering sectors within Switzerland and Germany. Beyond these core markets, Implenia extends its expertise in tunneling and related infrastructure construction across Austria, France, Sweden, Norway, and Italy.


Location

Norway


Industry

Renewable Energy

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