AINEGY Grid-Connected Solar ESS Cabinet · PV MPPT Input · Liquid Cooling

AINEGY On-grid Solar BESS Cabinet / Liquid Cooling

Name: AINEGY On-grid Solar BESS Cabinet / Liquid Cooling
Brand: AINEGY
SKU: AINEGY-ONGRID-SOLAR-BESS-LC

The AINEGY On-grid Solar BESS Cabinet / Liquid Cooling is a grid-connected solar battery energy storage cabinet with PV MPPT input, LiFePO4 battery system, PCS, BMS and EMS integrated into one cabinet platform. Available in 125kW/261kWh and 250kW/522kWh configurations for C&I solar energy storage, PV self-consumption, peak shaving and time-of-use energy shifting.

This AINEGY cabinet is not a battery-only cabinet. It includes PV-side input capability and grid-connected power conversion, allowing solar energy, battery storage, grid power and site load to be managed together. Under standard on-grid operation, it should be treated as a grid-connected solar BESS cabinet; backup or islanding operation requires separate project-level design confirmation.

125kW / 261kWhCompact solar BESS cabinet with 120kW PV input and one MPPT channel.

250kW / 522kWhHigher-capacity solar BESS cabinet with 240kW PV input and two MPPT channels.

950Vdc Max PV VoltagePV-side voltage boundary for solar array design.

250–850Vdc MPPT RangeSolar input operating window for PV energy capture.

Liquid CoolingBattery thermal management for high-capacity daily cycling applications.

Parallel ExpansionUp to 12 units for 125kW model or 6 units for 250kW model.

Send Solar Storage Requirements to AINEGY View Technical Specifications

About AINEGY On-grid Solar BESS Cabinet / Liquid Cooling

AINEGY develops commercial and industrial lithium battery energy storage solutions for solar, grid-connected and hybrid energy projects. The AINEGY On-grid Solar BESS Cabinet / Liquid Cooling is designed for C&I projects that need PV MPPT input, battery storage, grid-connected power conversion and EMS dispatch in one cabinet platform.

This AINEGY solar BESS cabinet is intended for project teams evaluating PV self-consumption, peak shaving, time-of-use energy shifting, demand management and multi-cabinet solar storage deployment. Selection should be based on PV string design, site load curve, AC distribution capacity, grid-connection rules, installation environment and required certification scope.

What Makes It a Solar BESS Cabinet

The main difference between this product and a standard on-grid battery cabinet is the PV input boundary. This cabinet is designed to receive solar PV energy through its MPPT input side, store energy in the LiFePO4 battery system, and exchange power with the AC side through the integrated PCS.

For project selection, do not judge only by kW and kWh. The PV voltage range, PV input current, MPPT channel quantity, AC current, transformer capacity, cabinet foundation and EMS operating strategy must be checked together.

PV MPPT InputThe cabinet accepts solar PV input within the specified PV voltage and current limits. The 125kW model supports one MPPT channel; the 250kW model supports two MPPT channels.

Solar ChargingWhen PV generation is available, solar energy can be stored in the battery system instead of being immediately exported, curtailed or underused.

Grid-Tied DischargeThe PCS converts stored DC battery energy into AC power for site load support during peak-load or higher-tariff periods.

EMS DispatchThe EMS coordinates PV generation, battery SOC, load demand, tariff periods and multi-cabinet dispatch logic.

BMS ProtectionThe BMS monitors battery voltage, current, temperature, SOC and fault status to keep the LiFePO4 battery system within operating limits.

Liquid CoolingBattery liquid cooling helps manage heat during repeated charge and discharge cycles, especially in higher-capacity C&I solar storage projects.

What It Solves for C&I Solar Storage Projects

This cabinet is designed for commercial and industrial solar energy storage projects where PV generation, grid power, load demand and battery dispatch need to be managed as one system.

PV Self-Consumption

Many C&I solar sites generate more power during midday than the site can immediately consume. The cabinet stores part of that solar energy and releases it later when load demand increases or tariff conditions are more favorable.

Peak Shaving

Factories, supermarkets, gas stations and commercial buildings often experience short high-load periods. The BESS can discharge during those periods to reduce peak demand drawn from the grid.

Time-of-Use Energy Shifting

The system can charge from solar energy or lower-cost grid periods and discharge during higher-cost periods. Actual savings depend on tariff structure, PV generation curve, load profile and dispatch strategy.

Solar Project Integration

PV input, battery storage, PCS, BMS and EMS are integrated in one cabinet platform, reducing the number of separate system blocks that need to be matched during project design.

Grid Capacity Relief

For sites where transformer capacity or grid connection capacity is limited, the cabinet can support load during peak periods and reduce pressure on the grid connection under normal on-grid operation.

Scalable Cabinet Deployment

Projects that require more power or energy can use multiple cabinets in parallel. Parallel design should confirm EMS coordination, communication, AC protection and grid connection capacity.

Liquid Cooling for High-Capacity Solar BESS

In solar battery energy storage projects, the battery may charge during high PV generation and discharge during peak-load or high-tariff periods. Repeated cycling creates heat, and uneven temperature distribution can make some cells age faster than others.

Better Temperature Uniformity

Liquid cooling transfers heat through a coolant-based thermal path. This helps reduce temperature differences between battery modules compared with layouts that depend only on cabinet airflow.

Reduced Local Heat Accumulation

High PV charging power and high-load discharge can create repeated thermal stress. Liquid cooling helps move heat away from battery modules more evenly during daily operation.

More Suitable for Dense Cabinets

The 261kWh and 522kWh configurations place large battery capacity into cabinet form. Liquid cooling supports this compact high-capacity layout by improving heat transfer.

Daily Cycling Stability

C&I solar storage systems often cycle daily for PV self-consumption, peak shaving or tariff shifting. Stable thermal conditions support more predictable battery operation.

Lower Dependence on Room Airflow

Outdoor and semi-outdoor C&I sites may have variable ambient conditions. Liquid cooling gives the battery modules a more direct heat-transfer route than airflow alone.

PCS Intelligent Cooling

The battery system uses liquid cooling, while the PCS uses intelligent cooling. Thermal design should still consider cabinet spacing, service access and ambient temperature at project level.

Model Selection

The two configurations serve different project sizes. Selection should consider PV input power, MPPT channels, AC power, battery capacity, installation footprint, foundation load and the site’s real load curve.

125kW / 261kWh

Select this model for small and medium C&I solar storage projects with moderate load demand, compact installation space and around 120kW PV input design. It offers higher parallel quantity flexibility for distributed cabinet deployment.

ModelIYP-B261L-125G3-120M1-HX1

Best FitSmall and medium factories, gas stations, supermarkets and commercial buildings.

PV Max Power120kW, 1 channel.

MPPT Range250–850Vdc.

Battery Energy261kWh LiFePO4 battery system.

AC Power125kW AC input and output.

Max. AC Current189A.

Parallel Number12 units.

Cabinet Size980 × 1300 × 2350mm.

WeightAbout 2500kg.

250kW / 522kWh

Select this model for larger C&I solar storage projects with higher PV input power, higher AC-side power demand and longer energy-shifting requirements. The larger cabinet requires stronger foundation planning and higher AC distribution capacity.

ModelIYP-B522L-250G3-240M2-HX1

Best FitLarger factories, industrial parks, commercial complexes, mines and high-load C&I sites.

PV Max Power240kW, 2 channels.

MPPT Range250–850Vdc.

Battery Energy522kWh LiFePO4 battery system.

AC Power250kW AC input and output.

Max. AC Current375A.

Parallel Number6 units.

Cabinet Size2000 × 1350 × 2300mm.

WeightAbout 4700kg.

The 250kW/522kWh model has higher PV input and AC-side power. Project design should check transformer capacity, cable size, breaker rating, foundation load and cabinet access space before final selection.

Technical Specifications

Parameter	125kW / 261kWh	250kW / 522kWh
Model	IYP-B261L-125G3-120M1-HX1	IYP-B522L-250G3-240M2-HX1
Product Type	On-grid Solar BESS Cabinet / Liquid Cooling	On-grid Solar BESS Cabinet / Liquid Cooling
Integrated Platform	PV MPPT / BMS / PCS / EMS	PV MPPT / BMS / PCS / EMS
Battery
Battery Type	LiFePO4 Battery	LiFePO4 Battery
Rated Energy	261kWh	522kWh
PV
Max. Power	120kW (1 channel)	240kW (2 channels)
Max. PV Voltage	950Vdc	950Vdc
MPPT Voltage Range	250–850Vdc	250–850Vdc
Max. PV Input Current	200A	200A + 200A
MPPT Channels	1	2
AC Input
Rated Power	125kW	250kW
AC Voltage	400Vac/230Vac (L1/L2/L3/N/PE)	400Vac/230Vac (L1/L2/L3/N/PE)
Rated Frequency	50Hz/60Hz	50Hz/60Hz
Max. AC Current	189A	375A
AC Output
Rated Power	125kW	250kW
AC Voltage	400Vac/230Vac (L1/L2/L3/N/PE)	400Vac/230Vac (L1/L2/L3/N/PE)
Rated Frequency	50Hz/60Hz	50Hz/60Hz
Max. AC Current	189A	375A
Parallel Number	12	6
General Parameter
Communication Type	RS485 / WiFi	RS485 / WiFi
IP Grade	IP65 (Battery)	IP65 (Battery)
Fire Protection System	Yes	Yes
Operating Temperature	-10°C–55°C	-10°C–55°C
Humidity Range	5%–95%	5%–95%
Altitude	<2000m	<2000m
Battery Cooling Method	Liquid cooling	Liquid cooling
PCS Cooling Method	Intelligent cooling	Intelligent cooling
Size	980 × 1300 × 2350mm	2000 × 1350 × 2300mm
Weight	About 2500kg	About 4700kg

Parameters are for reference. Final product configuration, PV string design, AC protection, EMS operating logic, grid connection scheme and installation requirements should be confirmed according to the selected model and project site conditions.

PV Design Checks

PV open-circuit voltage must stay within the cabinet’s PV voltage limit.
PV operating voltage should match the 250–850Vdc MPPT range.
PV input current must match the cabinet channel limit.
Use 125kW/261kWh for 120kW PV input and one MPPT channel.
Use 250kW/522kWh for 240kW PV input and two MPPT channels.

AC-Side Checks

Confirm 400Vac / 230Vac three-phase system compatibility.
Check breaker, cable, switchgear and transformer capacity.
Confirm export limitation, anti-islanding logic and local grid code requirements.
Parallel deployment requires EMS, communication and AC protection coordination.

Project Data Needed

PV capacity and string design.
15-minute or hourly load profile.
Peak-demand threshold and tariff periods.
Installation location, ambient temperature and altitude.
Foundation load and cabinet service access requirements.

AINEGY On-grid Solar BESS Cabinet Liquid Cooling system integration with PV input battery PCS EMS grid and load

System Design & Grid Integration

This cabinet works as a solar battery energy storage unit in a grid-connected commercial or industrial electrical system. The PV side brings solar energy into the cabinet, the battery stores energy, the PCS manages AC/DC conversion, and the EMS controls when to charge or discharge according to project logic.

PV InputConfirm PV power, string voltage, maximum PV input current, MPPT channel quantity and solar array protection before final design.

Grid ConnectionConfirm AC voltage, rated frequency, protection settings, export rules, metering logic and local grid connection requirements.

AC DistributionReview cable size, breaker rating, switchgear capacity, transformer capacity and short-circuit protection coordination.

Load ProfileUse real load data when available. The cabinet should be selected by peak demand, discharge duration, PV generation and operating target.

EMS StrategyDefine whether the main target is PV self-consumption, peak shaving, time-of-use shifting, demand management or multi-cabinet dispatch.

Thermal LayoutReview cabinet spacing, service access, ambient temperature, drainage, liquid-cooling maintenance route and heat rejection around the cabinet.

AINEGY On-grid Solar BESS Cabinet Liquid Cooling applications for factory gas station supermarket industrial park mountainous areas and islands

Typical Applications

This liquid-cooled on-grid solar BESS cabinet is mainly selected for commercial and industrial sites where solar generation, grid-connected storage and electricity cost optimization need to work together.

FactoriesFor production sites with daytime solar generation and load peaks from motors, compressors, pumps or process equipment.

Gas StationsFor sites with lighting, pumps, refrigeration, convenience-store load and potential EV charging expansion.

SupermarketsFor commercial sites with predictable refrigeration, HVAC and lighting load curves and time-of-use tariff exposure.

Industrial ParksMultiple cabinets can be planned across load zones when larger energy capacity or distributed cabinet layout is required.

Mines & OilfieldsFor heavy-load industrial sites where PV plus storage can reduce peak demand and improve renewable energy utilization under grid-connected operation.

Mountain & Island ProjectsUse in these locations should be confirmed by project grid conditions. Backup or islanding operation requires separate system design.

Difference From Other AINEGY Cabinets

Similar cabinet names can create confusion. This product should be selected when PV input and solar storage integration are part of the cabinet-level requirement.

Compared With On-grid BESS Cabinet / Liquid Cooling

The On-grid BESS Cabinet / Liquid Cooling is mainly a grid-tied battery energy storage cabinet. The On-grid Solar BESS Cabinet / Liquid Cooling adds PV input and MPPT parameters, making it more suitable when solar PV needs to connect directly into the cabinet-level system design.

Compared With Solar BESS Cabinet / On-grid / Air Cooling

The air-cooled solar BESS cabinet is suitable for projects where lower cost and simpler thermal structure are more important. The liquid-cooled version is better suited for higher-capacity C&I projects with daily cycling and stronger thermal consistency requirements.

Certification and Documentation Support

AINEGY can provide documentation support for applicable models and project requirements, including battery transport, material safety, electrical compliance, grid connection and fire-safety-related documentation. Final document scope depends on the selected configuration, target market and certificate availability for the exact model.

FAQ

What project conditions make this AINEGY On-grid Solar BESS Cabinet / Liquid Cooling suitable?This AINEGY cabinet is suitable when the project requires direct PV input, grid-connected battery dispatch, PV self-consumption, peak shaving or time-of-use energy shifting. The decision should be based on PV capacity, load curve, grid-connection rules, transformer capacity, tariff structure and installation conditions, not only on kW and kWh.

How should the PV strings be checked against the cabinet input limits?PV string design should confirm module Voc and Vmp, string quantity, series and parallel layout, maximum open-circuit voltage under low-temperature conditions, MPPT operating voltage, input current and MPPT channel allocation. The 125kW model supports 120kW PV input with one MPPT channel, while the 250kW model supports 240kW PV input with two MPPT channels.

What load curve and tariff data are needed for peak shaving or energy shifting?A professional evaluation should use 15-minute or hourly load data, peak-demand records, daily energy consumption, operating schedule, demand-charge rules, time-of-use tariff periods, export limitation and the expected dispatch target for PV self-consumption, peak shaving or tariff shifting.

How should the AC-side grid connection and protection design be reviewed?The project should confirm 400Vac/230Vac compatibility, rated frequency, transformer capacity, switchgear rating, breaker size, cable route, short-circuit protection, grounding method, metering logic, anti-islanding requirement and local grid-connection approval rules before selecting the final cabinet configuration.

How should I choose between 125kW/261kWh and 250kW/522kWh?Select 125kW/261kWh for moderate C&I loads, 120kW PV input design and smaller installation footprint. Select 250kW/522kWh for higher load demand, 240kW PV input, longer energy-shifting duration and larger sites. Transformer capacity, maximum AC current, foundation load, cabinet access space and PV string design should be checked before final selection.

What should be confirmed before multi-cabinet parallel deployment?Parallel projects should confirm cabinet quantity, total AC power, total usable energy, EMS dispatch logic, communication topology, AC protection coordination, transformer and switchgear capacity, cable routing, cabinet spacing and site maintenance access. The 125kW model supports up to 12 units, while the 250kW model supports up to 6 units.

What installation and liquid-cooling service conditions should be reviewed?Confirm indoor, semi-outdoor or outdoor placement, ambient temperature, humidity, altitude, drainage, foundation load, lifting conditions, cabinet spacing, service access, cable-entry direction and liquid-cooling maintenance expectations. These conditions affect thermal performance, maintenance planning and long-term reliability.

What compliance, documentation and delivery information should be prepared before quotation?Prepare destination country, grid-code requirements, required certificates, transport documentation, safety documentation, project approval needs, order quantity, delivery address, project schedule, packaging requirement and any customization needs for EMS logic, monitoring, communication or branding.

Send Your Solar Storage Project Requirements to AINEGY

Share your PV capacity, PV string design, site load curve, grid voltage, tariff structure, transformer capacity, installation location and target operation strategy. AINEGY can help review whether the 125kW/261kWh or 250kW/522kWh on-grid solar BESS cabinet configuration is suitable for your commercial or industrial solar energy storage project.

Contact AINEGY