The sonnen -Prescott Valley Virtual Power Plant – Battery Energy Storage System is an 11,600kW energy storage project located in Arizona, US. The rated storage capacity of the project is 23,000kWh.

The project was announced in 2017.


The Sonnen-Prescott Valley Virtual Power Plant – Battery Energy Storage System is being developed by sonnen.

The key applications of the project are renewables capacity firming and renewables energy time shift.

Contractors involved

sonnen is the developer. sonnen is the technology provider for the project.

sonnen is the system integrator.

Additional information

sonnen is installing its Sonnenbatterie energy storage solution in 3,000 new homes in the US state of Arizona. This is part of the new concept by home builder and urban planner Mandalay Homes , which is building a new community in Prescott Valley in the US state of Arizona. The energy storage systems will also be interconnected and able to communicate with each other.

About sonnen

Sonnen GmbH (Sonnen), formerly Sonnenbatterie GmbH, is a provider of energy management solutions. The company develops and sells an integrated plug and play system that includes energy storage (Li-ion batteries), a proprietary patented BMS (Battery Management System) and a third party inverter and software to upgrade, control and monitor the system. The company also operates sonnenCommunity, a community that connects all energy producers and consumers allowing them to supply one another with renewable energy. The company markets its products in the US and Germany. Sonnen is headquartered in Wildpoldsried, Germany.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.