What We Do
Battery Energy Storage
Not just backup power — active, intelligent energy assets that stabilise operations, reduce costs, extend uptime, and open new revenue streams through grid integration.
Battery Storage
Firm Power for the 24/7 Economy
Sunraycer BESS assets deliver capacity firming, frequency regulation, and energy arbitrage — purpose-built for hyperscaler power requirements.
Operational Capabilities
Built to Perform. Engineered to Last.
Our BESS portfolio is operated with the same institutional discipline Crayhill Capital brings to infrastructure — 24/7 monitoring, active dispatch, and full lifecycle stewardship.
Rapid Response & Grid Stability
Our BESS assets respond to grid disturbances at millisecond scale — smoothing both fast (5–30 Hz) and slow (0.1–1 Hz) power variations. For hyperscalers running AI training clusters and high-density compute, this means uninterrupted power delivery during grid events, generator transitions, and frequency deviations without a single cycle of downtime.
Scalable, High-Density Architecture
Lithium Iron Phosphate (LFP) chemistry stores significantly more energy per footprint than legacy lead-acid systems, preserving valuable data hall and electrical room space. Our modular rack-based configurations scale from 100 MWh to 2,000 MWh+ per installation, and capacity can be expanded without major infrastructure overhaul as your load grows.
Long Cycle Life & Predictable Output
LFP cells deliver thousands of deep discharge cycles before meaningful capacity degradation — 3–5x the lifespan of conventional battery chemistries. Performance remains consistent across a wide operating temperature range, reducing cooling overhead and delivering the predictable capacity curves that long-term PPAs and data center SLAs demand.
Intelligent Monitoring & Predictive Maintenance
Integrated Battery Management Systems (BMS) provide real-time health diagnostics, state-of-charge tracking, cell-level temperature monitoring, and predictive failure alerts — all surfaced to our 24/7 operations center. Remote visibility enables proactive intervention before issues affect availability, supporting our 99.5%+ uptime commitment.
Active Dispatch & Revenue Optimisation
Our assets do not sit idle. Sunraycer operates BESS as active energy assets — participating in ancillary services markets, providing frequency regulation, and executing peak-shaving strategies that reduce energy costs for offtakers. Where permitted, grid services revenues are shared back through structured PPA mechanisms, turning your energy contract into a value-generating partnership.
Peak Shaving & Demand Charge Management
By dispatching stored energy during peak-tariff windows and high-demand periods, our co-located solar + BESS configurations materially reduce blended energy costs. For data centre operators facing significant demand charges, this capability alone can represent millions in annual savings on top of the clean energy value.
Safety, Redundancy & Compliance
All Sunraycer BESS installations incorporate advanced thermal management, fire suppression, and fail-safe disconnect systems designed to meet Tier III and Tier IV reliability requirements. We engineer to UL 9540A, NFPA 855, and IEC 62933 standards, and carry built-in redundancy and automatic failover at the cell, module, and system level.
Sustainability & ESG Alignment
LFP chemistry eliminates cobalt and nickel from the supply chain, carries higher recyclability rates than NMC alternatives, and produces a substantially lower hazardous waste profile. For customers with Scope 2 and 24/7 carbon-free energy commitments, our solar + BESS portfolio provides the firmest path to genuine around-the-clock clean power matching.
Beyond Backup Power
An intelligent energy asset, not a standby system.
Legacy backup power thinking treats batteries as insurance — expensive infrastructure that sits idle and degrades. Sunraycer operates BESS differently. Our assets are active participants in wholesale energy markets, dispatching stored energy to maximise value for offtakers, capturing ancillary services revenues, and providing grid operators with the stability services that are increasingly scarce and increasingly valuable.
Backed by Crayhill Capital's infrastructure mandate, we have the balance sheet and the operational permanence to commit to 15–25 year asset lifecycles — giving data centre operators the long-horizon support that merchant or short-term storage contracts cannot provide.
Interested in Firm Clean Power?
Talk to our team about co-located solar + BESS PPAs designed for 24/7 clean energy matching.
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