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Lars Magne Nonås

Senior Research Scientist

Lars Magne Nonås

Senior Research Scientist

Lars Magne Nonås
Phone: +47 416 52 323
Email:
Department: Energy and Transport
Office: Bergen

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=1628682

The offshore wind sector has achieved significant cost reductions in recent years. However, there is still work to be done to maintain and surpass these savings across current and future farms. There is increased competition to reduce costs within the industry itself. Additional challenges are fores...

Authors Fiona Devoy McAuliffe Katie Lynch Iver Bakken Sperstad Lars Magne Nonås Elin Espeland Halvorsen-Weare Dylan Jones Negar Akbari Graham Wall Chandra Irawan Inge Norstad Magnus Stålhane Jimmy Murphy
Year 2018
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1582025

Operational expenditure (OPEX) is one of the major contributors to the levelized cost of energy (LCoE) for offshore wind farms. To assess different solutions and select the best ones, good models for maintenance and logistics decision support are required. This chapter provides an overview of, and a...

Authors Thomas Michael Welte Iver Bakken Sperstad Elin Espeland Halvorsen-Weare Øyvind Netland Lars Magne Nonås Magnus Stålhane
Year 2018
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/?pubid=1533274

Maintenance operations at offshore wind farms are challenging due to the offshore element; maintenance technicians and spare parts need to be transported from an onshore port or offshore station to the individual wind farm components in need of maintenance. The vessel resources needed to support the...

Authors Elin Espeland Halvorsen-Weare Inge Norstad Magnus Stålhane Lars Magne Nonås
Year 2017
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1392503

In this paper we consider the problem of determining the optimal fleet size and mix of vessels to support maintenance activities at offshore wind farms. A two-stage stochastic programming model is proposed where uncertainty in demand and weather conditions are taken into account. The model aims to c...

Authors Magnus Stålhane Hanne Vefsnmo Elin Espeland Halvorsen-Weare Lars Magnus Hvattum Lars Magne Nonås
Year 2016
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1243809

A fleet of vessels and helicopters is needed to support maintenance operations at offshore wind farms. The cost of this fleet constitutes a major part of the total maintenance costs, hence keeping an optimal or near-optimal fleet is essential to reduce the cost of energy. In this paper we study the ...

Authors Christian Gundegjerde Ina Blomseth Halvorsen Elin Espeland Halvorsen-Weare Lars Magnus Hvattum Lars Magne Nonås
Year 2015
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1155638

Different vessel types for transferring technicians for maintenance and inspection of offshore wind farms are often evaluated and compared by their limiting significant wave height for accessing the wind turbines. The limiting significant wave height is also the parameter that is often used as the a...

Authors Iver Bakken Sperstad Elin Espeland Halvorsen-Weare Matthias Hofmann Lars Magne Nonås Magnus Stålhane MingKang Wu
Year 2014
Type Academic article