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Mobile battery project will provide up to 3MW of frequency control services in Netherlands

Close-up of the Fideoak grid-scale battery energy storage project in England, optimised by Kiwi Power for flexibility markets and ancillary services. Image: Kiwi Power.

A new project in the Netherlands will see a number of mobile battery storage units used to power construction sites and outdoor events provide up to 3MW of frequency control ancillary services for grid operator TeneT.

The project, dubbed “Battery Box”, comes from a partnership between French electric utility company ENGIE and UK-headquartered energy technology company Kiwi Power – in which ENGIE owns a major stake.

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ENGIE’s mobile battery units can be used for applications including powering construction sites and outdoor events like festivals, or deployed in areas where the electrical grid is congested. In the Battery Box project, units with 600kW rated output and 660kWh of capacity will also be connected to Kiwi Power’s hardware and virtual power plant (VPP) software.

Aggregated by Kiwi Power, when not in use at those sites by customers, the units will be able to deliver services into TeneT’s local frequency control reserve (FCR) market, helping to balance the grid. Their use for FCR applications will give asset owners ENGIE and Dutch decentralised energy systems specialist company Bredenoord access to additional revenue streams, Kiwi Power said in a release sent to this morning.

In February, also in the Netherlands, renewable energy retailer GreenChoice said it was developing wind-powered charging solutions for mobile energy storage system battery units developed by German engineering startup Greener Engineering, which could similarly be deployed at outdoor sites for customers.

Meanwhile, Kiwi Power said the latest project to add flexibility to the Netherlands grid marks the company’s entrance to its 10th market in Europe, while the company recently made its first foray into North America, with ENGIE as its first customer in the ERCOT market in Texas, amid plans to also join the Mid-Western energy and power markets operated by PJM Interconnection across several US states.

Speaking to in July as Kiwi Power launched into the US, company chief commercial officer Stephan Marty explained that Kiwi started out as a pure-play aggregator in the UK market over a decade ago, but began offering proprietary tech and services from 2016 onwards to license takers including electric utility companies and other aggregators in Europe. Stephan Marty said the company is now taking its virtual power plant platform over to the US, which he said is following a similar trajectory, albeit a little while after Europe.

Speaking of the new project, Marty said today that: “Step-by-step we’re seeing changing regulation allow more countries to benefit from distributed energy resource flexibility, which will be a critical enabler of Europe’s sustainable recovery post COVID-19.”

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