Commercial & Industrial BESS · Liquid-Cooled · Three Deployment Modes

261 kWh in a single liquid-cooled cabinet.

Q: What's the difference between the 261-100, 261-110, and 261-125?

Same battery cabinet, three PCS sizes. The 100 kW unit suits 2-hour discharge profiles you see in solar self-consumption. The 110 kW adds headroom for short peaks on demand-charge sites. The 125 kW pushes the battery harder and works well for EV-charging buffers — short bursts matter more there than total runtime. Battery, BMS, EMS, cooling, warranty: all identical.

Q: Why does Henley publish two different cycle-life numbers?

Because the projects aren’t the same. 10,000 cycles at 80% DoD is the conservative figure for sizing a long-life project. 8,000 at 95% DoD is for sites that need every kWh per cycle — multi-charge EV hubs, demand-response programmes. Most product pages publish only the optimistic number. We publish both. End-of-life is 70% SOH on either curve.

Q: Why R513A refrigerant instead of the older alternatives?

R513A has GWP 631 — roughly 55% lower than R134a (GWP 1,430). It sits well under the EU F-gas phasedown thresholds in force, which keeps the long-term refurbishment paperwork shorter. Thermal performance matches or beats R134a in this temperature window. The handful of competitors using R134a today will have a refrigerant retrofit on their service schedule before this decade is out.

Q: Is grid-forming really standard, or is there an upcharge?

Standard, not optional. Every 261 ships with grid-forming control, LVRT/HVRT compliance, and 4-quadrant reactive power. Compatible with TN-S, TN-C, TN-C-S, TT, and IT network configurations. Compatible with major European TSO grid codes including ENTSO-E network code requirements; specific TSO qualification (50Hertz, TenneT, RTE, Energinet, Fingrid, Transelectrica, etc.) is confirmed per project and validated at commissioning against the operator’s interconnection agreement and protection settings. Grid code compliance documentation is bundled with the supply contract before order release. We made grid-forming standard because retrofitting it into a deployed BESS isn’t cheap, and the market’s moving that direction quickly.

Q: What cells go inside the 261?

A-grade LFP cells with full traceability to manufacturer batch records. Tier-1 from publicly listed suppliers under multi-supplier homologation. The supply contract names the specific cell partner per project; the public page doesn’t. Locking marketing to one supplier creates buyer-side risk if the relationship shifts during a 25-year deployment, and these relationships shift more often than buyers expect.

Q: What's the warranty scope and how is it backed?

Five years on the full system — battery, BMS, PCS, liquid cooling, controls. A five-year battery extension is available, priced upfront at order signing. End-of-life is defined at 70% SOH under the published cycling profile. Warranty insurance via licensed European insurer is available as a project option for DFI-financed and institutionally-backed tenders; parent guarantee or escrow alternative on request. One manufacturer, one signatory, one warranty across both supply and service.

Q: Where is the 261 manufactured and how does service work?

Manufactured by Henley Power in Dezhou, Shandong Province. European projects serviced from Romania. Nine active and expansion service regions across the EU, Eastern Europe, Central Asia, Southeast Asia, West Africa, North Africa, and adjacent markets. Spare parts are stocked in-region. Field response runs through the regional service centre, not the factory in China — and that distinction matters when something fails on a Friday afternoon.

Q: Which SCADA and EMS platforms can I use with the 261?

Open protocols, no proprietary lock-in. Modbus TCP/RTU, CAN, RS485, IEC 60870-5-104, IEC 61850-7-420 DER profile (optional), DNP3. Project-specific edition is confirmed at commissioning. Whatever SCADA or energy-management platform the customer already runs, integration happens at commissioning and the cabinet talks to it. Henley’s EU cloud EMS is provided alongside, energy-trading-ready, but it isn’t a forced dependency.

Q: How do I choose between Mode A (integrated PCS), Mode B (central PCS), and Mode C (hybrid inverter)?

Mode A is the fastest path to operation — single cabinet, integrated PCS, no separate inverter procurement. Pick it for standalone C&I sites up to 125 kW. Mode B makes sense above 500 kWh: one central PCS serving 4–20 cabinets costs less per kWh than an integrated PCS in every cabinet. Mode C is for solar+storage — it lets a single hybrid inverter handle PV generation and battery dispatch on one SLD rather than two separate systems. If you’re unsure, tell us the site’s grid connection size, PV array capacity (if any), and target discharge power — we’ll size it.

Q: What's the lead time and minimum order on the 261?

35 days ex-works from contract signature and deposit receipt. CFR European ports adds roughly 30–35 days transit, depending on destination. Single-cabinet orders are supported — no enforced minimum. Lead time sits in the supply contract with late-delivery clauses, not in a marketing brochure. First EU delivery batch shipping Q2 2026 to Moldova.

Chinese scale. Global service.

HLY-BESS-Commercial-Industrial-261kWh-100kW · -110kW · -125kW · -DC

One battery cabinet. Three ways to deploy it — integrated PCS (100/110/125 kW), DC battery-only for central PCS arrays up to 2,500 kW, or hybrid-inverter compatible (30–125 kW) for solar+storage. LFP, R513A cooling, grid-forming. Built in Dezhou, Shandong; serviced from Romania.

HLY-BESS-Commercial-Industrial-261kWh is a 261 kWh liquid-cooled outdoor C&I battery cabinet from Henley Power, available in three deployment modes: all-in-one with integrated PCS (100, 110, or 125 kW); DC battery-only paired with a central PCS (630–2,500 kW) for multi-cabinet arrays; and hybrid-inverter compatible (30–125 kW) for AC- or DC-coupled solar+storage. LFP cells, 10,000 cycles at 80% DoD to 70% SOH. Grid-forming standard. Manufactured in Dezhou, Shandong, China; European projects serviced from Romania.

261 kWh

100–125

kW PCS

three configurations

10,000

80% DoD · 70% SOH · 0.5C · 25°C

5+5yr

grid-forming standard

PRODUCT FEATURES

Why engineers reach for the 261.

R513A refrigerant · Cell ΔT ≤ 2.5°C · GWP 631

Eco-Refrigerant Liquid Cooling

R513A holds cell-to-cell temperature spread under 2.5°C without the high-GWP penalty of older refrigerants. Most cabinets in this class use R134a (GWP 1,430) or run pure air-cooling at 5–8°C spread. Tighter thermals are the largest single lever on real-world cycle life — and R513A keeps the EU F-gas paperwork shorter.

100 / 110 / 125 kW · same cabinet · swap PCS

Three PCS Configurations, One Battery

Solar self-consumption at 100 kW gives a clean 2.5-hour discharge from a full charge. EV-buffer sites pick 125 kW to absorb simultaneous fast-charge events. The battery, BMS, cooling loop, and warranty don’t change. Only the inverter does. That’s unusual — most C&I cabinets ship one fixed C-rate and force you to oversize.

Grid-forming standard · LVRT/HVRT · TN/TT/IT

Grid-Forming as Standard, Not Option

Grid-forming control is shipped on every 261, not priced as an upcharge. The unit can anchor a microgrid black-start, bridge an islanding event, and hold synchronisation when the grid gets wobbly. Compatible with TN-S, TN-C, TN-C-S, TT, and IT network configurations — country-specific compliance handled at commissioning.

8,000 @ 95% DoD · 10,000 @ 80% DoD · 70% SOH

Cycle Life with Two Useful Numbers

Two cycle-life ratings, both real. 10,000 at 80% DoD is the conservative number to size a 25-year project around. 8,000 at 95% DoD is for sites that need every kWh per cycle — multi-charge EV hubs, demand-response platforms. Most product pages publish only the optimistic number. We publish both because the projects are different.

TECHNICAL SPECIFICATIONS

Three configurations. One platform.

The HLY-BESS-Commercial-Industrial-261kWh ships as one battery cabinet with a choice of three PCS sizes. The battery, BMS, EMS, cooling loop, fire suppression, and warranty are identical across the three. The PCS sizing changes the C-rate and the cost. All values per IEC 62933-2-1.

HLY-BESS-Commercial-Industrial-261kWh-datasheet-v5 · May 2026

Parameter

Configuration A

100 kW PCS

Configuration B

110 kW PCS

Configuration C

125 kW PCS

All values measured per IEC 62933-2-1 at 25°C unless otherwise stated. Specifications subject to change without prior notice.

DEPLOYMENT TOPOLOGIES

One cabinet. Three ways to integrate it.

The HLY-BESS-Commercial-Industrial-261kWh ships as the same physical cabinet regardless of topology. What changes is the PCS — integrated at the factory, supplied separately as a central unit, or handled by the site’s hybrid inverter. Battery, BMS, cooling, and warranty don’t change.

Mode A

All-in-One with Integrated PCS

PCS is built into the cabinet at the factory. The unit ships AC-ready: connect to grid, wire communications, commission. No external inverter procurement, no separate PCS integration scope. The simplest path from purchase order to first discharge.

Mode B

DC Battery-Only + Central PCS

Cabinet ships without integrated PCS. The DC bus connects to a central or string PCS in the range 630–2,500 kW. One PCS handles multiple cabinets; the economics improve significantly at scale. This is how utility-adjacent C&I blocks and EPC contractors build MWh-class arrays without buying a PCS per cabinet.

Mode C

Hybrid Inverter Compatible

Same DC cabinet, paired with Henley Power’s hybrid inverter range. Handles both solar PV input and grid interaction in one unit. The battery is DC-coupled behind the inverter. This is the right topology for solar+storage projects, off-grid microgrids, and retrofitting storage onto existing PV plants where adding a separate BESS inverter complicates the SLD.

Parameter

Mode A · Integrated

Mode B · Central PCS

Mode C · Hybrid Inverter

PCS source

On-board, integrated in cabinet

External central PCS, separate skid

External hybrid inverter (PV + BESS)

Rated AC power

200 kW (215, 225 kW optional)

630 / 1,000 / 1,250 / 1,500 / 2,000 / 2,500 kW

30 / 50 / 60 / 100 / 125 kW

Typical scale

1–10 cabinets · 0.4–4.2 MWh

4–40 cabinets · 1.7–16.7 MWh

1–4 cabinets · 0.4–1.7 MWh

Typical sites

C&I behind-the-meter, single-cabinet retrofits

Utility BESS, large industrial, FCR/aFRR plants

Solar-plus-storage rooftops, microgrids

SKU

HLY-BESS-Commercial-Industrial-418kWh

HLY-BESS-Commercial-Industrial-418kWh-DC

HLY-BESS-Commercial-Industrial-418kWh-DC + HLY-Inverter-Hybrid

Spec table reflects Mode A. Battery, BMS, thermal, and EMS identical across all three modes — only PCS strategy differs. Sizing and pairing confirmed per project at engineering review.

SYSTEM ARCHITECTURE

Built for 25 years of commercial operation.

LFP · 314 Ah · Tier-1 cells · multi-supplier homologated

Cell & Battery System

LiFePO₄ chemistry, 3.2 V / 314 Ah prismatic A-grade cells with full traceability to manufacturer batch records. Tier-1 LFP cells from publicly listed manufacturers, multi-supplier homologated — the supply contract names the partner per project, the public page does not. Locking marketing copy to one cell brand creates buyer-side risk if the supply relationship shifts during a 25-year deployment, and it shifts more often than most buyers realise.

Henley-engineered · three-level · liquid-cooled · IP65

Power Conversion System (PCS)

Henley-engineered three-level transformerless topology delivering 98.5% peak efficiency (European-weighted η 97.5%). Liquid-cooled at IP65, sharing the cabinet’s main thermal loop — no separate climate control box. PCS response capability under 20 ms; full system activation under 500 ms. Grid-forming as standard. Three power configurations available: 100 kW, 110 kW, 125 kW. Sizing is selected at order, not retrofitted in the field. Specific PCS supply partner per project disclosed in the supply contract and bankability dossier under NDA — same multi-supplier homologation discipline applied to cell sourcing.

3-level · ±5 mV cell · SOC ±2% · active balancing

Battery Management System (BMS)

Three-level hierarchy across cell, module, and system. Cell-level fault isolation — a single module trips, the rest of the cabinet keeps running. SOC accuracy ±2%. Continuous SOH tracking through internal resistance measurement. Active cell balancing eliminates the resistive thermal waste you’ll find in passive systems. BMS architecture is the largest single determinant of warranty-period performance, so we don’t outsource the design.

EU cloud EMS · energy trading ready · OTA · open protocols

Cloud EMS & Communication

EU-hosted cloud EMS with AI dispatch optimisation and energy-trading-ready APIs for sites participating in market-revenue stacks. OTA firmware updates without on-site visits. Open protocols across the spec — Modbus TCP/RTU, CAN, RS485, IEC 60870-5-104, IEC 61850-7-420 DER profile (optional), DNP3. Project-specific edition is confirmed at commissioning. At commissioning, integration work connects the 261 to whatever SCADA the customer already runs, not the one we’d prefer them to.

APPLICATION SCENARIOS

Where the 261 earns its place.

Solar Self-Consumption — pick the 100 kW

261 kWh at 100 kW gives a clean 2.5-hour evening discharge from a full midday charge. Lifts commercial self-consumption from a typical 30–40% to 70%+ on well-matched rooftop sites. Not a substitute for net-metering where export tariffs make the maths better. Confirm the local tariff structure first.

Demand-Charge Reduction — pick the 110 kW

The 110 kW configuration handles short demand peaks at industrial sites without oversizing the battery. Cuts peak demand charges by 15–30% on properly sized loads. Multi-cycle daily dispatch via the cloud EMS. Single-cabinet sites cap at the cabinet’s discharge — for whole-site capping above 110 kW, the 125 kW unit or a multi-cabinet array is the right answer.

EV-Charging Hub Buffer — pick the 125 kW

Buffers grid-side connection limits at fast-charging sites. A 100 kW grid feed plus the 125 kW / 261 kWh unit can support 225 kW peak charging — enough for two simultaneous 150 kW DC sessions without grid upgrade. Pairs naturally with Henley Power’s DC charger range on the same site.

Frequency Regulation & Grid Services

PCS response capability ≤ 20 ms qualifies for FCR-N, FCR-D, FFR, and aFRR markets across ENTSO-E areas. Single-cabinet bids fall short of minimum lot sizes on most TSO platforms — stack 4–10 cabinets to clear the threshold. EU cloud EMS handles the trading interface. Verify the minimum bid size with the local TSO before contracting.

Microgrid & Black-Start Anchor

Grid-forming control as standard means the 261 can anchor a microgrid black-start, bridge an islanding event, and hold frequency on a small island without a synchronous generator running. Operating range −30°C to +55°C suits cold-climate islands and remote sites. Genset bridge time is improved, not eliminated — sized loads still need a transition plan.

Energy Trading & Market Stacking

EU cloud EMS ships energy-trading-ready APIs for day-ahead and intraday markets where the regulatory framework supports BESS participation. Stack revenue across self-consumption, peak shaving, and ancillary markets simultaneously. Profitability is project-specific — local tariffs and TSO rules drive the model. We provide the technical capability, not the trading guarantee.

CERTIFICATIONS & COMPLIANCE

Certified for European deployment.

Test reports available under NDA on request. Project finance bankability package — including independent test summaries and insurance documentation — provided to lenders during due diligence.

UL 9540A

UL 1973

IEC 62619

IEC 62477-2

IEC 62933-2-1

EU Reg

2023/1542

CE

Declaration

UN 38.3

IEC 60721

C5 (opt.)

IEC 61850-7-420

DER profile

IEC 60870-5-104

LiFePO₄ chemistry meets the EU Battery Regulation supply-chain due-diligence and carbon-footprint declaration requirements. CE marked. Battery passport readiness for the 18 February 2027 deadline. R513A refrigerant — GWP 631, well under the F-gas phasedown thresholds — keeps the cooling-system paperwork shorter for buyers planning long deployments. Service runs through nine active and expansion service regions across the EU, Eastern Europe, Central Asia, Southeast Asia, West Africa, North Africa, and adjacent markets.

Engineered for project finance.

Direct manufacturer warranty · 5+5yr coverage (insurance-backed option) · DFI track record (China + Chad) · IEC test reports under NDA · FSR documentation per-tender

FREQUENTLY ASKED QUESTIONS

Questions from engineers, developers, and EPCs.

What's the difference between the 261-100, 261-110, and 261-125?

Same battery cabinet, three PCS sizes. The 100 kW unit suits 2-hour discharge profiles you see in solar self-consumption. The 110 kW adds headroom for short peaks on demand-charge sites. The 125 kW pushes the battery harder and works well for EV-charging buffers — short bursts matter more there than total runtime. Battery, BMS, EMS, cooling, warranty: all identical.

Why does Henley publish two different cycle-life numbers?

Because the projects aren’t the same. 10,000 cycles at 80% DoD is the conservative figure for sizing a long-life project. 8,000 at 95% DoD is for sites that need every kWh per cycle — multi-charge EV hubs, demand-response programmes. Most product pages publish only the optimistic number. We publish both. End-of-life is 70% SOH on either curve.

Why R513A refrigerant instead of the older alternatives?

R513A has GWP 631 — roughly 55% lower than R134a (GWP 1,430). It sits well under the EU F-gas phasedown thresholds in force, which keeps the long-term refurbishment paperwork shorter. Thermal performance matches or beats R134a in this temperature window. The handful of competitors using R134a today will have a refrigerant retrofit on their service schedule before this decade is out.

Is grid-forming really standard, or is there an upcharge?

Standard, not optional. Every 261 ships with grid-forming control, LVRT/HVRT compliance, and 4-quadrant reactive power. Compatible with TN-S, TN-C, TN-C-S, TT, and IT network configurations. Compatible with major European TSO grid codes including ENTSO-E network code requirements; specific TSO qualification (50Hertz, TenneT, RTE, Energinet, Fingrid, Transelectrica, etc.) is confirmed per project and validated at commissioning against the operator’s interconnection agreement and protection settings. Grid code compliance documentation is bundled with the supply contract before order release. We made grid-forming standard because retrofitting it into a deployed BESS isn’t cheap, and the market’s moving that direction quickly.

What cells go inside the 261?

A-grade LFP cells with full traceability to manufacturer batch records. Tier-1 from publicly listed suppliers under multi-supplier homologation. The supply contract names the specific cell partner per project; the public page doesn’t. Locking marketing to one supplier creates buyer-side risk if the relationship shifts during a 25-year deployment, and these relationships shift more often than buyers expect.

What's the warranty scope and how is it backed?

Five years on the full system — battery, BMS, PCS, liquid cooling, controls. A five-year battery extension is available, priced upfront at order signing. End-of-life is defined at 70% SOH under the published cycling profile. Warranty insurance via licensed European insurer is available as a project option for DFI-financed and institutionally-backed tenders; parent guarantee or escrow alternative on request. One manufacturer, one signatory, one warranty across both supply and service.

Where is the 261 manufactured and how does service work?

Manufactured by Henley Power in Dezhou, Shandong Province. European projects serviced from Romania. Nine active and expansion service regions across the EU, Eastern Europe, Central Asia, Southeast Asia, West Africa, North Africa, and adjacent markets. Spare parts are stocked in-region. Field response runs through the regional service centre, not the factory in China — and that distinction matters when something fails on a Friday afternoon.

Which SCADA and EMS platforms can I use with the 261?

Open protocols, no proprietary lock-in. Modbus TCP/RTU, CAN, RS485, IEC 60870-5-104, IEC 61850-7-420 DER profile (optional), DNP3. Project-specific edition is confirmed at commissioning. Whatever SCADA or energy-management platform the customer already runs, integration happens at commissioning and the cabinet talks to it. Henley’s EU cloud EMS is provided alongside, energy-trading-ready, but it isn’t a forced dependency.

How do I choose between Mode A (integrated PCS), Mode B (central PCS), and Mode C (hybrid inverter)?

Mode A is the fastest path to operation — single cabinet, integrated PCS, no separate inverter procurement. Pick it for standalone C&I sites up to 125 kW. Mode B makes sense above 500 kWh: one central PCS serving 4–20 cabinets costs less per kWh than an integrated PCS in every cabinet. Mode C is for solar+storage — it lets a single hybrid inverter handle PV generation and battery dispatch on one SLD rather than two separate systems. If you’re unsure, tell us the site’s grid connection size, PV array capacity (if any), and target discharge power — we’ll size it.

What's the lead time and minimum order on the 261?

35 days ex-works from contract signature and deposit receipt. CFR European ports adds roughly 30–35 days transit, depending on destination. Single-cabinet orders are supported — no enforced minimum. Lead time sits in the supply contract with late-delivery clauses, not in a marketing brochure. First EU delivery batch shipping Q2 2026 to Moldova.

REQUEST A QUOTE OR DATASHEET

Talk to engineering.

Engineering response within 24 hours. Capacity sizing, PCS-size recommendation, grid-code review, transformer selection, and preliminary SLD are part of the pre-contract package — at no cost.

PDF datasheet with full specifications
Capacity sizing and model recommendation
Grid code review for your market
Preliminary SLD and BoP guidance
EU-jurisdiction commercial terms
Project finance bankability package on request

Send your inquiry.

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REQUEST A QUOTE OR DATASHEET

Talk to engineering.

Engineering response within 24 hours. Capacity sizing, PCS-size recommendation, grid-code review, transformer selection, and preliminary SLD are part of the pre-contract package — at no cost.

What you get

PDF datasheet with full specifications
Capacity sizing and model recommendation
Grid code review for your market
Preliminary SLD and BoP guidance
EU-jurisdiction commercial terms
Project finance bankability package on request

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COUNTRY

MODEL OF INTEREST

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Battery System
Cell chemistry	LiFePO₄ (LFP) — Cobalt-Free · EU Reg 2023/1542	LiFePO₄ (LFP) — Cobalt-Free · EU Reg 2023/1542
Cell specification	3.2 V / 314 Ah prismatic · A-grade · full traceability	3.2 V / 314 Ah prismatic · A-grade · full traceability
Nominal capacity	261 kWh	261 kWh
Max. depth of discharge	100% (95% recommended for cycle longevity)	100% (95% recommended for cycle longevity)
Cycle life	10,000 @ 80% DoD · 8,000 @ 95% DoD · 0.5C charge / 0.5C discharge · 25 °C ambient · EOL 70% SOH Test method per IEC 62620 cycle-life methodology, Henley homologation protocol. Independent third-party reports available under NDA.	10,000 @ 80% DoD · 8,000 @ 95% DoD · 0.5C charge / 0.5C discharge · 25 °C ambient · EOL 70% SOH Test method per IEC 62620 cycle-life methodology, Henley homologation protocol. Independent third-party reports available under NDA.
Round-trip efficiency (RTE)	92% AC-AC at system level (0.5C, 25 °C, 80% DoD window, BoL)	92% AC-AC at system level (0.5C, 25 °C, 80% DoD window, BoL)
Design life	25 years	25 years
Warranty	5 years system · 5 years optional extension (battery)	5 years system · 5 years optional extension (battery)
Power Conversion System (PCS)
Rated AC power	100 kW	100 kW
Max AC power (1 min)	120 kW	120 kW
PCS topology	Three-level transformerless · liquid-cooled · IP65	Three-level transformerless · liquid-cooled · IP65
AC output voltage	400 V (±10%) · 3-phase + N + PE	400 V (±10%) · 3-phase + N + PE
Frequency	50 / 60 Hz	50 / 60 Hz
Max PCS efficiency	98.5% peak (European-weighted η ≥ 97.5%)	98.5% peak (European-weighted η ≥ 97.5%)
Power factor / THDi	−1 to +1 adjustable · 0.99 at rated load · THDi < 3% at rated	−1 to +1 adjustable · 0.99 at rated load · THDi < 3% at rated
Response time	PCS capability ≤ 20 ms · Full system activation < 500 ms	PCS capability ≤ 20 ms · Full system activation < 500 ms
Grid support	Grid-forming standard · LVRT / HVRT · 4-quadrant Q control	Grid-forming standard · LVRT / HVRT · 4-quadrant Q control
Grid networks	TN-S · TN-C · TN-C-S · TT · IT	TN-S · TN-C · TN-C-S · TT · IT
Thermal Management & Environment
Cooling method	Intelligent Liquid Cooling · R513A eco-refrigerant (GWP 631)	Intelligent Liquid Cooling · R513A eco-refrigerant (GWP 631)
Cell temperature spread	ΔT ≤ 2.5°C across cabinet	ΔT ≤ 2.5°C across cabinet
Operating temperature	−30°C to +55°C (no derating to +35°C)	−30°C to +55°C (no derating to +35°C)
Storage temperature	−30°C to +60°C	−30°C to +60°C
Max. operating altitude	4,000 m (derated above 2,000 m)	4,000 m (derated above 2,000 m)
Noise level	≤ 75 dB(A) at 1 m	≤ 75 dB(A) at 1 m
Enclosure & Protection
Cabinet type	Outdoor cabinet · plug-and-play · forklift base	Outdoor cabinet · plug-and-play · forklift base
IP rating	IP54 cabinet (IP55 optional) · IP65 battery module · IP65 PCS	IP54 cabinet (IP55 optional) · IP65 battery module · IP65 PCS
Anticorrosion grade	C4 standard · C5 optional (coastal & marine sites)	C4 standard · C5 optional (coastal & marine sites)
Cabinet colour	RAL 7035 standard · custom RAL on request	RAL 7035 standard · custom RAL on request
Safety & Fire Protection
Fire detection	Pack-level thermal runaway · CO + temperature per module · smoke detection cabinet-level	Pack-level thermal runaway · CO + temperature per module · smoke detection cabinet-level
Fire suppression	Pack-level Novec · cabinet-level aerosol	Pack-level Novec · cabinet-level aerosol
Explosion protection	3-level design · pressure relief vents · UL 9540A propagation tested	3-level design · pressure relief vents · UL 9540A propagation tested
Standards	UL 9540A · UL 1973 · IEC 62619 · UN 38.3	UL 9540A · UL 1973 · IEC 62619 · UN 38.3
Communication & Control
Communication protocol	Modbus TCP · Modbus RTU · CAN · IEC 60870-5-104 · IEC 61850-7-420 (DER profile, optional) · DNP3	Modbus TCP · Modbus RTU · CAN · IEC 60870-5-104 · IEC 61850-7-420 (DER profile, optional) · DNP3
Communication interface	CAN / RJ45 / RS485 / Ethernet / 4G optional	CAN / RJ45 / RS485 / Ethernet / 4G optional
EMS platform	EU cloud EMS — energy trading ready · AI dispatch · OTA · remote O&M 24/7	EU cloud EMS — energy trading ready · AI dispatch · OTA · remote O&M 24/7
Integration & Deployment
Deployment mode A — All-in-one	Integrated PCS (100 / 110 / 125 kW) · stand-alone cabinet, no external inverter · models HLY-BESS-Commercial-Industrial-261kWh-100kW / -110kW / -125kW	Integrated PCS (100 / 110 / 125 kW) · stand-alone cabinet, no external inverter · models HLY-BESS-Commercial-Industrial-261kWh-100kW / -110kW / -125kW
Deployment mode B — DC battery-only	Pure battery cabinet, no internal PCS · pairs with central or string PCS 630–2,500 kW · DC bus connection · model HLY-BESS-Commercial-Industrial-261kWh-DC · for multi-cabinet MWh arrays	Pure battery cabinet, no internal PCS · pairs with central or string PCS 630–2,500 kW · DC bus connection · model HLY-BESS-Commercial-Industrial-261kWh-DC · for multi-cabinet MWh arrays
Deployment mode C — Hybrid inverter	AC- or DC-coupled with compatible hybrid inverters 30 / 50 / 60 / 100 / 125 kW · solar+storage, off-grid, microgrid retrofit · model HLY-BESS-Commercial-Industrial-261kWh-DC (same cabinet)	AC- or DC-coupled with compatible hybrid inverters 30 / 50 / 60 / 100 / 125 kW · solar+storage, off-grid, microgrid retrofit · model HLY-BESS-Commercial-Industrial-261kWh-DC (same cabinet)
DC connection (modes B & C)	Nominal 1,331 V · range 1,040–1,498 V · via project DC busbar or inverter BESS port	Nominal 1,331 V · range 1,040–1,498 V · via project DC busbar or inverter BESS port
Service
Service regions	EU · Eastern Europe · Central Asia · Southeast Asia · West Africa · North Africa — spare parts in-region	EU · Eastern Europe · Central Asia · Southeast Asia · West Africa · North Africa — spare parts in-region
Lead time	35 days ex-works from contract signature and deposit receipt	35 days ex-works from contract signature and deposit receipt