TP-less pros & cons
The advantages of TP-less
What does it have to offer?
It aims to offer an impartial view on the considerations involved in selecting between MP/TP and TP-less designs, each analysed.
Going TP-less provides many benefits through various stages of the design and implementation process that can be found in the pros and cons below.
Skybox plays an important role in solving some of the key challenges of current TP-less designs whilst further enhancing the savings of going TP-less.
Read the full paper:
The pros and cons of tp-less technology
Pros
Transitioning to TP-less configurations can streamline the design processes of primary and secondary steel components. This separation allows for quicker finalization of primary steel designs and accommodates the more complex secondary design requirements.
As turbine sizes increase, the traditional MP/TP bolted connections face scalability limits. The TP-less design elevates critical connections, reducing stress and accommodating larger turbine structures more effectively. Innovations like the Skybox platform address residual challenges by enhancing functionality and cost-effectiveness.
TP-less designs simplify the installation process by eliminating the need for the bolted connections required in TP configurations. This not only reduces installation times but also cuts down on long-term maintenance and inspection requirements, offering substantial economic advantages.
The analysis suggests significant capital expenditure (CapEx) savings in the range of €250k to €300k per foundation, with further operational expense (OpEx)reductions due to less frequent bolt inspections and maintenance. The overall economic benefit is supported by the growing availability of suitable installation vessels, which are crucial for accommodating the heavier and longer TP-less monopiles.
Cons
When going TP-less, approximately 20 metres of tubular steel is added on to the MP, making the MP 250–300 tonnes heavier. Most fabricators have no issue with this; however, installing these higher MP weights and lengths might require the latest generation of installation vessels to be available. However, from a macro view, it seems that the fleet of installation vessels capable of installing TP-less monopiles is growing rapidly and is keeping up with the growing demand over time.
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