Smart energy system to secure uninterruptible power supply in Kalasatama

The energy system of Helsinki’s Kalasatama, the first model area for smart energy systems in Finland, will be complemented with ABB’s latest digital technology and unique ring network solution. Both solutions are the first of their kind on the scale of Finland. They will ensure that power supply in the developing Kalasatama district will be as uninterruptible as possible. By 2040, Kalasatama will be home to more than 25,000 residents and provide more than 10,000 jobs.

In traditional electrical grids, electricity flows in one direction – from the energy company to consumers. In new smart grid solutions, the direction of electricity passing through the transformer substation can vary depending on the situation. For example, as small solar and wind power systems become more common, there will be increasing needs to feed electricity back to the grid - writes City of Helsinki.

The Kalasatama area will also see Finland’s first closed ring network in a medium voltage grid. Electricity to the grid is continuously supplied from two directions. A common practice in electricity transmission networks, the practice is now applied for the first time in the ring network of a medium voltage grid. The solution made possible by the latest technology ensures as uninterruptible power supply as possible to critical areas of consumption and reduces losses in the medium voltage grid.

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