Nissan Reuses EV Batteries in Melilla to Prevent Blackouts 2026

Nissan has reaffirmed its commitment to the second life of electric vehicle batteries with a pioneering project in Melilla, Spain. The initiative, known as Second Life, repurposes used Nissan Leaf batteries into a stationary energy storage system that helps prevent blackouts in the isolated city. This case exemplifies how EV batteries can continue to provide value even after their automotive life ends.

What Is the Second Life Project?

The Second Life project is a collaboration between Nissan, energy group Enel (through its Spanish subsidiary Endesa), and Italian company Loccioni, which specializes in measurement and control systems. The idea is simple yet innovative: take batteries from Nissan Leaf electric cars that no longer meet the demands of driving and use them for stationary energy storage.

According to Nissan, the installation combines 48 used Leaf batteries with 30 new ones, totaling 78 units. This hybrid approach ensures reliability while maximizing the use of second-life batteries. The project has been operational for several years and remains a cornerstone of Nissan's argument that EV batteries have much to offer the grid after their automotive retirement.

Why Melilla? The Unique Energy Challenge

Melilla is a Spanish city located on the North African coast, and its energy system is unlike any other in Spain. The city is isolated from the national distribution grid and depends entirely on a single thermal power plant operated by Endesa. In other words, if that plant fails, the entire city goes dark.

This vulnerability makes Melilla an ideal testing ground for energy storage solutions. The Second Life system provides a buffer that can stabilize the grid, manage peak demand, and offer backup power during outages. It's a real-world application that demonstrates how repurposed EV batteries can enhance energy resilience in isolated communities.

How Does the Second Life System Work?

The system works by storing excess energy generated by the thermal plant during periods of low demand and releasing it when demand spikes. This load leveling reduces strain on the plant and improves overall efficiency. The used batteries, although no longer suitable for vehicles, still retain significant capacity for stationary applications.

Nissan and its partners have equipped the system with advanced monitoring and control technology from Loccioni, ensuring safe and optimal performance. The project also serves as a research platform to gather data on battery degradation and performance in stationary use, which can inform future projects.

Key Benefits of Second-Life Battery Storage

• Grid stability: Provides backup power and smooths fluctuations in isolated grids.
• Cost savings: Extends battery life and reduces the need for new storage investments.
• Environmental impact: Defers recycling and reduces the carbon footprint of batteries.
• Scalability: Can be replicated in other isolated or weak grid areas.
• Research value: Generates data to improve battery management and second-life applications.

Comparison of Battery Usage: Automotive vs. Second Life

What This Means for the Future of EVs

The Melilla project is more than a technical showcase; it's a proof of concept for a circular economy in electric mobility. As EV adoption grows, the volume of retired batteries will increase, and finding viable second-life applications is crucial to sustainability. The background to this story is set out in Second-Life EV Batteries: A Renewable Energy Storage Solution. A related thread runs through Nissan Invests £170m in Sunderland for New Hybrid SUV Kicks. Earlier coverage in Omoda and Jaecoo Outsell Citroën, Nissan, Ford in Spain shows how the argument developed.

Nissan's initiative highlights the potential for automakers to partner with energy companies and technology firms to create value from used batteries. It also supports the development of smart grids and renewable integration, as stationary storage can help balance intermittent renewable sources. A closer look at the same subject appears in Waymo's Robotaxi Battery Second-Life Solar Storage Plan. Anyone following the wider picture can start with Nissan CEO: China Sets the Pace in Tech, Costs, and Development Speed. The same theme surfaces in EV Battery Gigafactory Shelves Expansion as JLR Talks Stall, which takes a different angle.

While the Melilla project is small in scale, its success could pave the way for larger deployments in other isolated regions or areas with high renewable penetration. The data gathered will be invaluable for optimizing battery reuse and reducing waste. Context on how this played out before sits in Nissan Car Repair Delay Threatens Driving Instructor's Livelihood. A companion piece, Nissan Plant Survival Key to North East Economic Recovery, approaches the same subject from another angle.