![]() Wärtsilä has successfully deployed microgrids on the Caribbean island of Bonaire and in the Azores, an archipelago in the mid-Atlantic. Once deployed, microgrids deliver three key benefits: lower electricity costs and tariffs lower emissions as compared to thermal power generation or gas generation and improved electricity stability, which can be especially valuable on islands where poor grid management often leads to brownouts or even blackouts. It can also forecast how much solar power or other renewable sources will be available for use and optimise their generation. Using GEMS, Wärtsilä is able to use AI and machine learning to get an accurate prediction of energy use and demand. “Wärtsilä’s GEMS energy management system can easily optimise the microgrids,” Paldanius says. Second, microgrids typically have a lower generation capacity and are easier to calibrate to changes in consumer demand throughout the year. So, advanced microgrids are easier to get off the ground,” says Paldanius. This makes it easier for the microgrid owner, which is typically a local power operator, to maintain the microgrid. So, there’s more controlled, limited environments that need to be operated and maintained. ![]() There are fewer assets, fewer transmission lines, and fewer substations. The first is their simplicity as compared to traditional power grids. The usefulness of microgrids in these situations is due to two key features, according to Paldanius. ![]() Risto Paldanius, Director of Business Development, Energy Storage and Optimisation at Wärtsilä, says there are generally three types of places where microgrids are deployed: physical islands where there is a dependence on imported fuels but there is an abundance of renewables isolated areas with high energy consumption for industrial applications, such as industrial mines, which require isolated grids to support high industrial energy demand and remote habited areas, which require electricity for residential use, but don’t have enough energy demand in total for more traditional energy grids. ![]() It’s also easier to incorporate renewables into microgrid power generation thanks to their size and structure. A broad range of projects, including microgrids for resilience, post-disaster building and economic development, have come online in recent years. Microgrids – smaller, isolated power systems and grids with lower loads – have exploded in popularity worldwide. Microgrids may be a way to help expand renewable capabilities while also increasing operational efficiency. Renewable energy sources are increasingly seen as a viable option for areas with unique challenges for energy production. ![]()
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