Sint Eustatius, Caribbean Netherlands

Sint Eustatius, Caribbean Netherlands

  • Target: Reduce fossil fuel usage and establish a grid stabilizing energy supply based on renewable energies.
  • Status: Achieved - Produces 4.1 MW of energy, covering 45% of the islands annual energy share.
  • RES: Combination of a 2 MWp PV farm and diesel generators, largest lithium battery storage system in the Caribbean, latest energy technology products, and monitoring platform.
  • Implementation: The project was built by Eco Energy in collaboration with SMA and Schlepper. In 2016, 1.89 MWp of solar power and central storage batteries were first installed. The project began operations in March 2016. In the second expansion stage, the project partners doubled the solar output to 4.15 MW and increased the battery capacity to 5,900 kWh. The key component is the battery inverter with grid-forming characteristics which allows the diesel generators to be shut down fully automatically without affecting the stability of the frequency in the utility grid. A fuel save controller is responsible for real-time energy and power management and synchronizes diesel and battery operation. The system compensates for the PV array’s power fluctuations caused by fast-moving clouds in this region. This allows for the diesel generators to be switched off completely during the day. The system has withstood hurricanes Irma and Maria (September 2017). The EU has since earmarked 2.2 million euros to enhance the resilience of the electrical grid by placing around 10km of MHV cables underground. In 2017 the local government began working with a French energy company to explore geothermal energy production on the island.
  • Population: 3,193 (Jan 2016)
  • Area: 21 km² (8 sq mi)
  • Link: https://www.sma-sunny.com/en/flagship-project-in-the-caribbean-pv-hybrid-system-on-the-island-of-st-eustatius/

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