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Client Panasonic Enterprise Solutions and Xcel Energy

Location Denver, Colorado

Sectors Renewable energy

The Challenge

Optimise power at existing PV power plant with energy storage

Panasonic, Xcel and the Denver Airport were looking to optimise the performance of their PV installation as well as to increase resiliency and improve power quality at the site. The Xcel Energy feeder for Peña Station NEXT already has 20% solar penetration and is expected to have 30% by the time the project is completed in the first half of 2017.

These companies wanted better, and they knew who could help.


Project fact file

1 MW

To provide six different services.

4 Y.Cubes

The heart of the storage system.

5 X faster than the blink of an eye

Reaction time of the battery park.

The Solution

An intuitive energy storage system 

Battery storage company Younicos, who became part of Aggreko in 2017, designed and built a system that harnesses the revenue stacking opportunities afforded by a flexible, intelligently managed energy storage resource.

Four Y.Cubes were installed at the Panasonic facility. The one-megawatt (MW) storage resource is connected to the Xcel Energy power grid and provides six services: 


The Aggreko Difference

Forward thinking ideas, optimised solutions

The Impact

The project is now a showcase for clean, on-site energy generation 

Adding battery storage to the facility made it possible to meet all project requirements, enabling a standalone microgrid as well as the capability for solar self-consumption and export to the grid.

The project is now a showcase for clean, on-site energy generation and efficient consumption. In fact, the Peña Station NEXT system will be net-positive energy, with substantial surplus solar power until enough of the development is built out for local demand to absorb the solar generation.


It has been a pleasure to collaborate with Younicos and Xcel Energy to realize this innovative project.

George Karayannis Vice President ,
Panasonic CityNOW

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