Abstract
Abstract
A fossil fuel is undergoing transitional era towards clean energy envision, reducing carbon footprint is one of top priorities. This is unlocking factor for license to operate (LTO) and continue production from fossil fuel as based energy source. Power generation from open burning combustion i.e., gas turbine generator (GTG) is no longer an option. Moving forward, rather to reduce the CO2 emission to meet net zero carbon emission (NZCE) by year 2050. One of ways to mitigate this GTG problem is by replacing fossil fuel, methane as a feedstock to clean energy derive from wind power. The harvesting of wind energy is not an easy task as Malaysia offshore region is known as low wind speed environment typically below 7 meter per second (m/s) with average of 2m/s (Asia wind association energy, 2023).
The use of normal wind turbine for low speed wind region is not suited best for this mission to produce energy. Low wind speed in this region is fall under class S. Therefore, a new scheme of technology is needed to cater such requirement. The technology is called low speed wind turbine, which able to generate and store power up-to 4 megawatt (MV). With this invention, capable to solve existing brownfield operational paint point for decarbonation effort. This paper showcasing a case study for offshore Sarawak, Malaysia.
An integrated approach is adopted for seamless development between green field and brownfield scopes. A green field development refers to wind turbine installation and power generation and storage. Meanwhile, for a brown field scope is defined as tie-in, platform modification and GTG replacement. The novelty of this project, the platform is located offshore with a total water depth around 60 meters, in which cost for substructure is one of considerably high for development. The wind turbine technique is moving away from the conventional of substructure jacket installation, instead adopted of a tension leg platform (TLP) concept; it is floating structure with mooring system. Of course, integration with TLP is a tall tower that reaches up to 180 meters height as stand to rotor and blades. This enables wind harvesting at maximum of wind energy for a duration of 365 days per annum. A total integrated energy management system (IEMS) plays significant roles, and this include energy storage and power-up including battery and control systems.