Offshore Substation Installation Methodology#
For details of the code implementation, please see the Offshore Substation Installation API documentation
Overview#
The OffshoreSubstationInstallation module simulates the installation of
offshore substations and their associated substructures. ORBIT currently only
considers monopile substructures, though future release will extend this module
to include an option for jacket substructures. The installation of the
substructure and substation topside is completed with an installation vessel
while components are delivered to site using a feeder barge.
Processes#
Port Operations#
The feeder barge loads and fastens components on deck at port using the port crane. The default times for fastening each component to deck are listed below.
Component |
Inputs |
Default |
|---|---|---|
Monopile |
|
12h |
Topside |
|
2h |
Currently, all vessels are only able to load multiples of complete sets of components (monopile and topside).
Monopile Installation#
Monopile substructures are installed using the installation processes outlined in the monopile installation with feeders process diagram.
Topside Installation#
Once the monopile is installed on-site, the topside can be released from deck storage and attached to the substructure. The following processes outline the code the processes the installation vessel takes to complete this task:
Action |
Inputs |
Default |
|---|---|---|
Reequip Crane |
|
1h |
Release Topside |
|
2h |
Lift Topside |
|
calculated |
Pump Grout |
|
2h |
Cure Grout |
|
24h |
Jack-down |
|
calculated |