Dunext Begins European Rollout of PowerHill 233 kWh, Enhancing C&I BESS Safety and Reliability

Dunext has commenced European deployment of its liquid-cooled PowerHill-233 kWh energy storage system, with initial units arriving at project sites in Romania. This strategic rollout reinforces Dunext's commitment to advancing C&I energy storage solutions across European markets and supporting the region's clean energy transition.

SAFE Framework: Four Pillars, One Solution
With rated capacity of 105kW/233kWh, the PowerHill-233 kWh features an all-in-one design, consolidating 1P52S battery packs, PCS, MPPT modules and a 5 KW liquid-cooling system into a single cabinet. It supports both PV+ESS DC coupling and AC coupling, making it ideal for applications such as peak shaving, self-consumption optimization, grid services and emergency backup. Safety, Asset returns, Flexibility, and Enduring performance are the four pillars of PowerHill-233 kWh’s SAFE framework, guaranteeing superior reliability and performance.

Safety First: Six-Layer Protection Architecture

“Safety is our top priority,” Bobby HE, CTO of Dunext emphasized. “It’s not a single feature but a system-wide commitment.” PowerHill-233 kWh adopts six-layer safety design including cell, pack, structural, electrical, fire suppression, and AI driven active safety, ensuring every potential risk is anticipated and mitigated.

Maximized Asset Returns: Multi-Dimension Profit Optimization

· DC Coupling for Highly-Efficient Charging: This structure reduces energy conversion losses, optimizes control logic, and allows real-time energy dispatch between PV and storage, laying the foundation for higher margins.

· Seamless 20ms On/Off Grid Switch: Along with the PCC cabinet, the liquid-cooling PowerHill is able to detect a grid outage and switch to off-grid mode in less than 20 milliseconds. Under off-grid mode, it supports 100% unbalanced output and there is no need for isolation transformer, helping customer to reduce CAPEX.

· Full-Range SOC Constant Power Output: By delivering consistent power across nearly the entire SOC range, PowerHill-233 kWh unlocks revenue opportunities in diverse applications like frequency regulation, capacity markets and spinning reserve, driving enhanced revenue and market eligibility.

Ultimate Flexibility: Integrated Ecosystem & Effortless Scalability

PowerHill-233 kWh delivers a truly modular, one-stop energy storage ecosystem, combining C&I PV inverters, liquid-cooled ESS, an energy management system, and the Dulink smart-management platform into a single, unified solution. Its prefabricated cabinet design minimizes field wiring and accelerates commissioning, and also permits easy parallel deployment of multiple units, allowing capacity to grow seamlessly alongside business needs and driving down total cost of ownership. “One vendor, One platform, One solution. PowerHill makes design, installation, operation, and expansion as simple as it is reliable.” Bobby noted.

A ten-year liquid-coolant warranty virtually eliminates routine coolant changes, reducing maintenance overhead far beyond industry norms. Meanwhile, Dulink leverages real-time data, AI-driven analytics, and historical performance insights to shift maintenance from reactive to predictive, slashing O&M costs and ensuring peak system availability.

Enduring Performance: Long-Lasting Reliability and Community-Friendly Design

“What’s particularly remarkable is PowerHill’s ability to deliver lasting reliability without disrupting its surroundings,” remarked Bobby. Advanced liquid-cooling channels maintain cell temperature variation stays below 2.5°C across the entire system, dramatically slowing degradation and extending battery life. A dual-mode noise-suppression design, combining physical noise suppression and software-controlled active noise control, ensuring PowerHill-233 kWh runs quietly with average noise level less than 60dB. “This isn’t merely an energy storage solution; it’s a community-friendly system built for long-term sustainability.”

The debut of PowerHill-233 kWh received enthusiastic recognition from partners and industry professionals, who were excited about its potential. With its standout features in safety, flexibility, and long-term returns, the solution generated significant interest among stakeholders across the European C&I storage sector.

As demand for resilient, high-performance energy storage continues to rise, PowerHill-233 kWh is well positioned to become a flagship solution in Dunext’s global portfolio. Its launch signals not only a leap forward in C&I ESS innovation, but also a clear commitment to helping partners unlock new levels of efficiency, reliability, and profitability in the energy transition ahead.