Younicos to supply the NEXT smart city project in Denver


The Younicos Y.Cube plug-and-play storage system will be employed in the project, and be connected to the Xcel Energy power grid, to provide frequency regulation, solar grid integration through ramp control, grid peak shaving, passive energy arbitrage, and backup power.

The Younicos Y.Q storage control software will enable Panasonic, Xcel Energy, and other microgrid stakeholders to derive maximum benefits from Xcel Energy’s 1.6 MW solar PV system on a parking structure nearby, along with 259 kW of PV on Panasonic’s rooftop.

The Y.Cube off-the-shelf solution comprises batteries, inverter, HVAC and auxiliary components, all tested and pre-assembled by Younicos and all seamlessly operated by the Y.Q. software at a 97 percent efficiency level.

The system is available in 250 or 500 kVA modular blocks that can be deployed individually in smaller applications or combined to create multi-megawatt systems. Its modular design approach enables system sizes from 200 kW to 10 MW for longer-duration storage systems, scaling up to 20 MW for shorter-duration.

The Y.Cube consists of two sub-enclosures, one for the power conversion system and one for the DC battery block. The controls are embedded in the PCS and communicate directly with the battery system, bypassing the need for additional battery-to-PCS communication interfaces. The configuration enables ultra-fast 35 millisecond response time for improved PCS efficiency and enhanced grid-forming capability, the company notes.

Berlin-based Younicos has received up to 20-year performance warranties from leading battery manufacturers on the strength of the Y.Q. software. The company has a subsidiary in Austin, and 25 projects with 100 MW of installed energy storage solutions for C&I customers.

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