Our flagship project in Saudi Arabia – 15 MWh containerised energy storage system

Off-grid energy storage for electric vehicle charging at THE LINE, NEOM


Sunstream International deployed a large-scale Battery Energy Storage System (BESS) to power EV and e-bus charging during the construction of NEOM's THE LINE,  enabling zero-emission mobility through locally generated solar energy.




Project Overview
THE LINE is a next-generation, car-free city being built in Tabuk, Saudi Arabia. To support clean construction logistics, Sunstream International delivered an off-grid renewable energy storage system capable of powering high-demand charging without fossil fuels or grid connection.


Key System Data:
• Capacity: 15 MWh / 4 MW
• Configuration: Off-grid micro-grid
• EV Charging Supported: 10×350 kW, 20×100 kW, 110×11 kW
• Components: 8×40 ft BESS containers
• Energy Source: Solar PV
• Deployment: 2022–2023
• Partners: Exide Group & Bravo Solar


Project Challenge
Enable high-power EV charging in a remote desert location with no grid access, while maintaining modularity and low environmental impact during ongoing construction.



Solution Delivered

Sunstream International deployed a modular BESS that:
• Stores solar energy for peak charging demand
• Functions as a standalone micro-grid
• Provides stable frequency and voltage for EV chargers
• Eliminates diesel generator dependency

Full site commissioning and acceptance testing verified performance in high-temperature desert conditions.


e-NERGYBOX BEE - Mobile Energy Storage & Charging System

e-Nergybox-BEE  Mobile Energy Solution is a clean, quiet, and high-performance Energy Storage System (ESS) designed for construction sites, events, emergency situations, and off-grid environments, replacing traditional diesel or petrol generators.

Available in 200kWh and 400kWh (100kWh is available upon request), it offers flexible deployment, long operating hours, and multiple charging options for both equipment and electric vehicles.

e-NERGYBOX BOOST - Boost your Energy Storage Capacities

e-Nergybox Boost is a modular lithium-ion Battery Energy Storage System (BESS) designed for commercial, industrial, utility, and micro-grid applications. Built and assembled in Europe, it provides high-performance storage, grid support, and energy optimization. With scalable capacity, advanced control systems, and integrated safety features,  e-Nergybox Boost enables reliable operation, renewable integration, and significant cost savings.

e-NERGYBOX CABINET - design your own conversion and storage system

EU certified product

When even the storage capacity of our mobile solutions isn’t enough,

e-NERGYBOX add extra movable storage capacity in style.

Sunstream's genuine accessories are built to address your needs for electricity, improve your comfort while meeting highest quality, performance and reliability.

Discover our highly mobile and plug & play off-grid solar storage system installed in an insulated and ventilated aluminum box. Developed and built specifically for our solar solutions, e-NERGYBOX is designed by our in-house engineers to comply with our high-quality standards. Quick to load,

e-NERGYBOX is a complete autonomous IP44 fully integrated conversion power system that includes an inverter and a LiFePo4 battery system (up to 30 kWh storage capacity). Designed and manufactured in Germany for hazardous conditions, the CE certified e-ENERGYBOX is the ideal portable storage system to combine with our solar solutions:

e-BUILDBOX, e-ORYXBOX, e-WINGBOX…

Designed for road and air transportation, our e-ENERGYBOX is the perfect equipment for military operations and camps, mobile work-sites, for pumping and water irrigation projects.