Jaguar Land Rover (JLR) and Allye Energy have agreed to collaborate on a 270 kWh portable battery energy storage system (BESS) built with second-life Range Rover batteries. The system, which is set to become the first commercially available BESS with JLR battery packs, can fully charge up to nine Range Rover PHEV vehicles at once.
UK car manufacturer JLR and energy storage startup Allye Energy have developed a portable BESS. The Allye MAX BESS is the first to use second-life Range Rover battery packs.
Each unit holds seven battery packs that are removed from vehicles and slotted into customized racks. The system is charged by plugging it into any CCS-capable vehicle charger using the same input as JLR''s existing PHEV and BEV product portfolio.
Weighing less than 3.5 tons, JLR said the system can be fully portable or stationary when providing energy storage for retailers or JLR sites. The company added that the unit can be used to replace diesel generators when powering off-grid vehicle launches, events and vehicle tests in remote areas.
JLR''s engineering team will become the first to use the new BESS during testing of the new Range Rover Electric. The team will use the system to power more than 1,000 hours of testing ahead of the vehicle''s launch next year, which they estimate will save more than 15,494 kg of CO2 – equivalent to one passenger taking seven round-trip flights between London and New York.
The system will then become commercially available for use outside of JLR.
"This battery innovation and partnership with Allye demonstrates the value we can create from repurposing and reusing batteries, such as from our Range Rover vehicles," said François Dossa, executive director of strategy and sustainability at JLR. "We are creating new value from a used commodity that would otherwise go directly to recycling, keeping them in use for longer, and providing innovative renewable energy storage solutions."
JLR said it is investing GBP 15 billion ($18.7 billion) in electrification by building "a comprehensive EV ecosystem,” covering the full lifecycle of EV batteries.
In March, JLR announced plans to generate more than one-quarter of its UK electricity from new onsite and near-site renewable energy projects, as part of its global plan to increase its self-generated energy to 36.4% of its global consumption by 2030.
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Built on the Volvo Group’s electromobility platform, the battery management system (BMS) helps the battery reach its full potential and longevity by protecting it from excessive degradation, maintaining optimal SOC, and optimizing charging cycles. The BMS also incorporates cybersecurity features to meet global cyber compliance requirements.
It is designed for easy integration with the BESS OEM’s energy management systems and SCADA infrastructure, to meet the demands of industrial applications. Given the substantial investment often required for BMS, the integration of this automotive-grade platform with battery technology aims to deliver operational reliability and value, while driving long-term efficiency and optimizing system performance.
The DC/DC unit converts the voltage from the batteries (600 V) into lower voltage (24 V) to auxiliaries. The auxiliary power required to maintain the subsystem functionality is provided by the onboard converter as soon as the system is started; in contrast to something that is plugged into the grid to power. This facilitates the batteries’ cooling requirement should a BESS featuring our subsystem is moving or in a location without grid connection.
A telematics gateway enhances BESS performance and reliability by enabling real-time, data-driven control. Key functions in our BESS subsystem span:
The thermal management system in our BESS subsystem has been optimized for performance in tough environments, featuring pumps, radiators, active cooling and heaters. This dynamic system regulates battery performance, using active cooling in warm conditions and heating in colder climates to ensure fast, efficient energy charge and discharge.
The traction voltage monitoring unit monitors the HVIL and interrupts the system when violated. Other components as part of Volvo Penta’s BESS subsystem’s electrical safety include junction boxes, fuses, contactors, isolation monitoring (for fault detection), all of which is aimed at ensuring safe handling of energy storage.
Once connected, all live components in Volvo Penta’s BESS subsystem are isolated, sealed and monitored by the HVIL in junction boxes.
Adapted from the Volvo Group, Volvo Penta’s DC interface is calculated to handle the configured load capacity and connected to the OEM’s inverter. Helping OEMs with cable sizing and dimensioning not only serves as right-fitting our BESS subsystem to better meet their application needs, it also serves as functional safety between our BESS subsystem and the OEM’s busbar*.
*High energy throughput typically generates heat, which is why it is important to Volvo Penta to run extensive testing to ensure the functional safety of our energy-dense BESS subsystem.
Adapted from the Volvo Group, the CAN interface has been extensively used in Volvo Penta’s in its combustion engine platform and later adapted for use in BESS.
Feedback on the system (both individual component level and overall system performance) to the OEM’s controller via the CAN bus using the J1939 communication protocol for reliable data transfer. If a component detects an issue (e.g., overvoltage, overheating), it can communicate the fault through the CAN bus, and the system can take corrective action, such as shutting down a battery module or adjusting the operating parameters.
With this interfacing the OEMs can further finetune and better optimize the use of their BESS.
The customer (BESS OEMs) will be responsible for the AC part of a BESS that includes the DC to AC converter (OEM interface), transformers, energy management system, AC switch gear (breakers, etc), OEM CAN interface and the external container shell(s).
Volvo Penta’s subsystem spans the DC Part of a BESS solution. This includes, but isn’t entirely limited to, the batteries, BMS, electrical safety, DC/DC converters, thermal management, CAN and DC interfaces.
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