Nio stabilizes Sweden's power grid: Battery-swapping stations as energy storage

The stations are to be used in the future as energy storage systems to balance peak loads and absorb surplus energy. In a statement, Nio speaks of an “important step toward integrating its own energy solutions into the broader energy ecosystem.” For the manufacturer, this opens up another revenue stream, as sales of its own models lagged behind expectations in several European markets. According to the company, participation in grid stabilization can bring in a yearly amount in the high five figures per station.

Swap stations can make a significant contribution to the power grid

The technology is still young in Europe. Although Nio already enables a rapid swap of depleted for fully charged batteries, a second function is now added: The stations can absorb or deliver electricity and thus cushion fluctuations in the grid. Nio regards this as a breakthrough – not only for itself, but for the industry. In China several providers are active, in Europe the concept so far plays rather a modest role. If the stations prove to be reliable storage units, that could change.

Indeed, swap stations have a special feature: Unlike individual vehicles, they bundle several batteries at a single site. This amount of storage capacity can collectively make a significant contribution to grid stability. In China, extensive tests are already underway; in Denmark, Nio conducted a pilot project with a station that has since been taken out of service.