WHES
Residential ESS Solutions
Utility ESS Solutions
C&I ESS Solutions
WHES
Residential ESS Solutions
Utility ESS Solutions
C&I ESS Solutions
About WHES
WHES — Tier 1 Battery Energy Storage Solutions Supplier.
WHES is a leading provider of digital and intelligent Battery Energy Storage System (BESS) solutions. Leveraging our energy management algorithms and full-stack technology framework, we offer advanced energy storage solutions to our customers worldwide.
50+
Countries/Regions Covered
800+
Global On-site Projects
20+
Global Service Centers
solutions
C&I ESS
Our advanced Battery Energy Storage Systems are built to meet the evolving needs of C&I applications. Offering both all-in-one and modular energy storage solutions, our systems provide exceptional reliability, efficiency, and performance. Carefully designed with battery modules provided by CATL and smart WHES OS EMS, our BESS products ensures safety and durability.
VIEWUtility ESS
Our Utility Battery Energy Storage Systems are tailored to strengthen the stability and performance of power grids. By integrating energy storage solutions at the core of the power network, they effectively balance energy fluctuations and enhance system response speed.
VIEWResidential ESS
Our Residential Energy Storage Systems enable clean energy use at home, ensuring a stable power supply through reliable battery storage system for solar integration. By leveraging peak and off-peak price differences, our home energy storage solutions help households meaningfully reduce electricity costs.
VIEWsolutions
Products
PC-G3125kW / 261kWh C&I ESS
• 1.5 m² footprint, 6 m² for 1 MWh system
• 314Ah LFP battery cells, up to 8,000 cycles
• Support 4h system
• >88% round-trip efficiency
• Up to 24 units on-grid in parallel
PC-G1100kW / 233kWh C&I ESS
• IEC 62933 & UL9540A certified
• ＜1 Day Installation Time
• Highly integrated all-in-one design
• PPB level Battery Quality Control
• Four-level protection
PC-G2250kW/509kWh C&I ESS
• 2/4/6/8 Hours Flexible Solutions
• VDE 4110 Certified
• CATL 306Ah Battery Packs
• Max. 6 units in parallel
ACAC 100kW Control Cabinet
• Real-time monitoring, fault warning & location
• Highly integrated
• 8h on-site installation
• Waterproof & modular
• Grid dispatching & primary frequency/voltage regulation
Battery Box4.99-29.94kWh
• UL9540A Certificated
• Built-in FSS
• Support Heating Module
• Integrated plug-in terminal
• Max. 5 unites in parallel
PP-T15-13kW/9.98-29.9kWh Three-Phase Residential ESS
• Max. 2 times Photovoltaic Oversizing
• < 10 ms EPS Switching Time
• 110% Unbalanced Output
• UL9540A Certificated
• Built-in FSS
• Support Heating Module
• Max. 5 unites in parallel
PP-S23.6-10kW/4.99-19.9kWh Single-Phase Residential ESS
• Max. 2 times Photovoltaic Oversizing
• < 10 ms EPS Switching Time
• 16A Max. PV Input Current Per String
• 50A Fast Charge/Discharge Current
• UL9540A Certificated
• Built-in FSS
• Support Heating Module
• Max. 5 unites in parallel
Hybrid Inverter5-13kW
• Max. PV Input Current Per String
• Max. 16kW EPS Peak Output Apparent Power
• 110% Unbalanced Output
• < 10 ms EPS Switching Time
PA-3.0EU744-1488kW / 1490-2980kWh
• 50°C Full Performance without Derating
• Flexible Cluster Reduction
• Support 4h System
WHES OSEMS
• Cloud–edge–device synergy
• AI-powered predictive dispatch
• <20ms response with seamless on/off-grid switching
• Full-site monitoring for reliable and safe operations
• Open integration with VPP/dispatch systems, globally compliant
Products
PC-G3125kW / 261kWh C&I ESS
• 1.5 m² footprint, 6 m² for 1 MWh system
• 314Ah LFP battery cells, up to 8,000 cycles
• Support 4h system
• >88% round-trip efficiency
• Up to 24 units on-grid in parallel
PC-G1100kW / 233kWh C&I ESS
• IEC 62933 & UL9540A certified
• ＜1 Day Installation Time
• Highly integrated all-in-one design
• PPB level Battery Quality Control
• Four-level protection
PC-G2250kW/509kWh C&I ESS
• 2/4/6/8 Hours Flexible Solutions
• VDE 4110 Certified
• CATL 306Ah Battery Packs
• Max. 6 units in parallel
ACAC 100kW Control Cabinet
• Real-time monitoring, fault warning & location
• Highly integrated
• 8h on-site installation
• Waterproof & modular
• Grid dispatching & primary frequency/voltage regulation
Battery Box4.99-29.94kWh
• UL9540A Certificated
• Built-in FSS
• Support Heating Module
• Integrated plug-in terminal
• Max. 5 unites in parallel
PP-T15-13kW/9.98-29.9kWh Three-Phase Residential ESS
• Max. 2 times Photovoltaic Oversizing
• < 10 ms EPS Switching Time
• 110% Unbalanced Output
• UL9540A Certificated
• Built-in FSS
• Support Heating Module
• Max. 5 unites in parallel
PP-S23.6-10kW/4.99-19.9kWh Single-Phase Residential ESS
• Max. 2 times Photovoltaic Oversizing
• < 10 ms EPS Switching Time
• 16A Max. PV Input Current Per String
• 50A Fast Charge/Discharge Current
• UL9540A Certificated
• Built-in FSS
• Support Heating Module
• Max. 5 unites in parallel
Hybrid Inverter5-13kW
• Max. PV Input Current Per String
• Max. 16kW EPS Peak Output Apparent Power
• 110% Unbalanced Output
• < 10 ms EPS Switching Time
PA-3.0EU744-1488kW / 1490-2980kWh
• 50°C Full Performance without Derating
• Flexible Cluster Reduction
• Support 4h System
WHES OSEMS
• Cloud–edge–device synergy
• AI-powered predictive dispatch
• <20ms response with seamless on/off-grid switching
• Full-site monitoring for reliable and safe operations
• Open integration with VPP/dispatch systems, globally compliant
The Latest from WHES
News
WHES Earns Dual Certifications in Poland and Belgium, Accelerating European Deployment of the PC-G2 C&I Energy Storage System
June 3, 2026 - At the 19th SNEC International Photovoltaic Power Generation and Smart Energy Exhibition, DEKRA presented Weiheng Intelligent Technology Co., Ltd. ("WHES") with the Poland PTPIREE V1.3 WOS:2025-05 and Belgium C10/C11:2024 certification certificates.
The dual certification demonstrates that the PC-G2 Commercial & Industrial (C&I) Energy Storage System meets stringent European standards for grid compatibility, operational safety, and grid-connection performance. It further strengthens WHES’s readiness to expand across Europe's demanding energy storage markets.