The storage infrastructure the grid demands.
Renewable assets produce more value when the energy they generate can be stored, dispatched and traded on your terms. Nexion expertise builds and operates the utility-scale BESS infrastructure that makes that possible.
ACTIVE PIPELINE
2030 TARGET
COUNTRIES
ACTIVE PROJECTS
Full-cycle delivery. No gaps.
From the first technical specification to long-term operational performance — we cover every stage of a utility-scale BESS project so you don't have to coordinate between multiple contractors.
Systems design
Technology selection, power and energy sizing, system architecture and grid connection engineering — tailored to your asset, your grid and your target services market.
EPC & integration
Turnkey delivery: detailed engineering, procurement, construction and full integration of SCADA, EMS and BMS control systems. One contract, one point of accountability.
O&M & monitoring
24/7 remote operation from our control centre. Preventive and corrective maintenance. Dispatch strategy optimisation to maximise revenue from every cycle.
Technical consultancy
Independent technical advisory for developers and investors: feasibility analysis, BESS asset due diligence, revenue modelling and regulatory guidance across European markets.
Built to outperform. Engineered to last.
We bring one of the top-performing BESS products on the market — and we deliver it at highly competitive conditions. Our engineers configure, optimise and commission every system to the precise demands of your grid and your revenue targets. Best hardware. Best value. No compromises.
Liquid cooling
Direct liquid cooling thermal management system. Cell temperature controlled to ±1°C. Higher energy density and extended service life compared to air-cooled systems.
Triple fire detection
Three independent detection layers: gas sensors (VOC/H₂), optical smoke detection and per-cell temperature sensors. Response time <30 seconds.
Active fire suppression
Per-module integrated suppression system with extinguishing agent specific to lithium batteries. Automatic isolation of the affected module without shutting down the entire system.
Grid Forming
Grid-forming operation capability: the system can establish and maintain the voltage and frequency reference of the grid. Essential for high renewable penetration zones.
Black Start
Autonomous start-up capability without external grid support. The system can energise a dead grid and start conventional generators. Certified to TSO requirements.
Advanced EMS
Energy management system with real-time optimisation. Adaptive dispatch algorithms, market forecasting and integrated battery degradation management.
IEC 62933 safety
Full compliance with IEC 62933 and UL 9540A. Per-module thermal propagation testing. CE, UL certifications and safety requirements of the principal European TSOs.
IP55 outdoor design
20 and 40-foot containers, stackable up to two storeys. IP55 rated. Operational from -30°C to +50°C. Scale capacity without taking the existing system offline.
Energy density
≥ 350 Wh/L
System RTE
> 88%
Guaranteed cycles
> 6,000
FCR response
< 200 ms
Europe's benchmark for utility-scale BESS delivery.
Grid code violations, integration failures, underperforming dispatch — these are the risks that erode returns on BESS assets. Nexion was built specifically to eliminate them. We own the full project lifecycle: design, build, integration and operation. One team. Full accountability. Systems that perform as modelled from day one.
Utility scale only
Utility-scale only. Every project we take on is critical infrastructure — the kind that moves real power, stabilises real grids and generates real returns for asset owners.
Grid compliance in every market
Every grid has its own rules. We know them all. Full compliance is engineered in from day one — not patched in at commissioning.
Technology-independent
We work with the best BESS product on the market — full stop. Not because we have to. Because it wins on every metric that matters to an asset owner: performance, reliability and long-term value.
Headquartered in Spain. Active across EMEA and LATAM.
Our engineering teams are embedded in the markets where we operate — giving us the local regulatory knowledge and grid expertise that remote project management cannot replicate.
Spain
Main hubOur reference market. Active projects in Gibraltar, with a growing pipeline across Spain.
Italy
ExpandingA high-growth storage market with strong regulatory tailwinds. Pipeline in place. Entry in progress.
Portugal
ExpandingProposals submitted and under review. Projects in development and awaiting commissioning.
Germany
ExpandingStrong ancillary services market.Looking for Projects in active development stage.
Poland
ExpandingRapid energy transition creating significant grid-scale storage demand.
United Kingdom
ExpandingEurope's most mature frequency response and capacity services market.
Turkey
Active marketTwo projects currently under proposal. A fast-growing grid with significant storage requirements driven by renewable integration targets and grid modernisation.
Saudi Arabia
ExpandingActive search for a local strategic partner. Saudi Vision 2030 is driving one of the most ambitious renewable energy programmes in the MENA region — creating substantial demand for utility-scale storage infrastructure.
Dominican Republic
In conversationIn advanced conversations with a major hotel group to deploy individual BESS systems across their properties. The objective: protect sensitive equipment from frequent grid curtailment and maintain full operational capability for up to 8 hours without reliance on fossil fuels.
Colombia
In negotiationNegotiations underway with a local partner to establish Nexion's corporate hub for South America. Colombia is the strategic gateway to the LATAM market — a fast-growing economy with an ambitious renewable energy agenda and the regulatory framework to support large-scale storage deployment.
Have a storage project that needs to perform?
Whether you have a fully scoped project or just the idea of adding storage to an existing asset — share the basics and our engineering team will respond within 48 hours with a tailored technical view.
Common questions about Nexion
What does Nexion Grid Storage Systems do?
Nexion Grid Storage Systems is a specialist developer and integrator of utility-scale battery energy storage systems (BESS). We deliver full-cycle projects from 10 MW to 500+ MW — covering design, grid integration, EPC delivery, commissioning, and long-term operations and maintenance — across Spain, EMEA and LATAM.
Which markets does Nexion operate in?
Nexion has active projects and pipeline in Spain, Gibraltar, Italy, Portugal, Germany, Poland, Great Britain, Turkey, Saudi Arabia, the Dominican Republic, and Colombia. We are actively operating across 6 countries with 18 active projects at various stages of development.
Is Nexion tied to a specific battery manufacturer?
No. Nexion is technology-independent. We select the most appropriate battery chemistry — LFP, NMC, or VRFB — based on project duration, cycle requirements, and revenue model. This independence ensures clients receive the optimal solution, not a manufacturer-driven one.
What grid services can a Nexion BESS system provide?
Our systems are designed to deliver Frequency Containment Reserve (FCR), automatic Frequency Restoration Reserve (aFRR), peak shaving, renewable energy time-shifting, capacity market participation, and behind-the-meter demand management. FCR response time is under 200 ms.
How do I start a conversation about a project?
You can submit your project requirements directly through our enquiry form or contact our engineering team at [email protected]. We typically respond within 48 hours with an initial technical and commercial assessment.