Ishikari Bay New Port Offshore Wind Farm

Due to limited electrical transmission capacity to Honshu, and Hokkaido’s relatively small, mainly rural, population, the local Transmission System Operator requires that all major renewable generators directly connect projects to a Battery Energy Storage System (BESS). As a result, the Ishikari Bay project is paired with a 100 MW/180 MWh BESS.

Project name: Ishikari Bay New Port Offshore Wind Farm
Location: Hokkaido prefecture, Japan
Year: 2022
Application: Jacket foundations

New, innovative proprietary offshore grouting equipment was mobilized to the project, which achieved an average output of more than 22 MT per hour and 24 MT at top pumping speed. The grouting operation, troubleshooting, and maintenance was monitored closely by Sika as part of the contract and for internal Grouting Field Record documentation.

Facilitated by Bond Engineering personnel, Sika was involved in the installation of fourteen wind turbine generators (WTG). The WTGs were installed on 4-legged jacket foundations and driven into the seabed by piles. The team used Sika’s containerized batch mixing grouting spreads with a capacity of 3 MT (2 x 1.5 MT bags) per mix and applied SikaGrout®-9500 ultra-high strength grout for offshore wind turbine foundations. 

Customer Benefits

• The project received comprehensive support, including SAT/FAT trials of the equipment, the provision of the CPT-25-02 grouting spread, offshore supervision, technical assistance, and troubleshooting throughout the grouting operation.
• The grouting was completed successfully with zero personnel or environmental incidents.