RelyEZ Energy Storage

What RelyEZ Energy Storage does

RelyEZ Energy Storage Technology Co., Ltd. is a vertically integrated Chinese manufacturer of lithium-ion battery energy storage systems (BESS) founded in 2019 and headquartered in Shenzhen, Guangdong. The company designs, manufactures, and deploys utility-scale (GridUltra series, including the 5 MWh GridUltra 5016), commercial and industrial (VenturePro 250, VentureEdge 800), and residential (DeepCore Pack) energy storage products, alongside proprietary in-house power conversion systems (PCS), battery management systems (BMS), and AI-driven energy management software (EnergyHub EMS and EnergyCloud platform). Manufacturing occurs across three Chinese facilities (Jiangsu, Yao'an, Dali) with combined annual production capacity exceeding 20 GWh.

The company's business model combines hardware sales of BESS equipment with turnkey project development and EPC services for utilities, independent power producers, commercial and industrial customers, and off-grid/emerging market clients. Revenue is generated through quote-based, multi-year enterprise contracts, supplemented by recurring software and platform services. The go-to-market is anchored by direct enterprise field sales supported by regional offices in Johannesburg (via a Veers Group joint venture), Brussels, and Las Vegas, plus channel partners including DSP in Spain and Voltkeepers in Bulgaria. Customer engagements span over 200 delivered projects across more than 100 countries, with marquee deployments including a 500 MW/2000 MWh standalone storage project in Ulaanqab (Inner Mongolia), a 300 MW/600 MWh demonstration project in Yongren (Yunnan), and a 1.5 GWh portfolio across four Yunnan sites.

RelyEZ holds BloombergNEF Tier 1 status across eight consecutive quarters through Q2 2026, S&P Global Top 10 ranking as an independent BESS provider, InfoLink Top 5 DC system integrator, and a Munich Re-backed 15-year product performance guarantee — placing it among only five companies globally and three in China with utility-scale insurance-backed storage solutions. The company has secured National-Level 'Little Giant' Enterprise recognition from China's MIIT and a BBB bankability rating from PV Tech Research. Recent strategic priorities include a 1.8 GW Latin American pipeline, European market expansion via the emPower-E partnership, and the launch of grid-forming 800V AC and 2000V high-voltage battery platforms targeting weak-grid and microgrid applications.

Name

RelyEZ Energy Storage

Legal name

RelyEZ Energy Storage Technology Co., Ltd.

Website

https://relyez.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

RelyEZ Energy Storage is a vertically integrated Chinese manufacturer of lithium-ion battery energy storage systems serving utilities, IPPs, C&I clients, and off-grid markets across 100+ countries, with 20+ GWh production capacity, BloombergNEF Tier 1 status, and Munich Re insurance-backed utility-scale solutions.

Ownership category

akta.pro rank

Product category

Battery Energy Storage Systems (BESS)

NAICS

Battery Manufacturing (33591), Electrical Equipment, Appliance, and Component Manufacturing (335)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

BESS OEMs (Containerized Systems, Racks, Turnkey Solutions) (EUAFAAAC)

akta.pro secondary industries

Utility-Scale BESS Project Development & Ownership (IPP/Developer) (EUAFAAAA), Utility-Scale BESS EPC & Integration (EUAEAEAA), Energy Management Systems (EMS), SCADA & Dispatch/Optimization Software for Storage (EUAFAAAF)

Keywords

• Battery energy storage systems
• Utility-scale BESS
• Commercial industrial storage
• Energy management software
• Lithium-ion storage solutions

Headquarters

HQ city

Shenzhen

HQ country

China

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. BESS Equipment Manufacturing & Sales: Design, manufacture, and sale of lithium-ion battery energy storage systems including GridUltra (utility-scale) and VenturePro (C&I) product lines. Revenue generated from equipment sales to developers, utilities, and industrial clients globally.
2. Turnkey Project Development & EPC: End-to-end project delivery including early-stage development, investment structuring, engineering design, manufacturing, installation, and commissioning. Full lifecycle services from project origination through operations.
3. Energy Management Systems & Software: AI-driven EnergyHub EMS and EnergyCloud platform providing intelligent forecasting, real-time monitoring, automated market trading, and predictive O&M for energy storage assets. Revenue from software licensing and platform services.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

RelyEZ designs, manufactures, and sells lithium-ion battery energy storage systems (BESS) under the GridUltra (utility-scale, up to 5 MWh per unit) and VenturePro (250 kWh commercial & industrial) product lines, alongside the EnergyHub EMS and EnergyCloud AI platform for intelligent energy management and trading. The company also delivers turnkey project development, EPC, and long-term O&M services globally, with all critical components — battery cells, PCS, BMS, EMS — designed and produced in-house across three Chinese manufacturing facilities.

Product overview

RelyEZ Energy Storage offers a comprehensive portfolio of lithium-ion battery energy storage solutions spanning utility-scale, commercial & industrial (C&I), and residential applications. The portfolio is organized around two flagship BESS product lines: the GridUltra series (5016, 3354, 3727, 5018) for utility-scale deployments featuring advanced liquid or air cooling thermal management, and the VenturePro series (VenturePro 250, VentureEdge 800) for C&I markets with integrated PCS, BMS, and fire protection. These hardware products are unified by the EnergyHub EMS and EnergyCloud AI platform, which provide intelligent energy management, predictive maintenance, and automated market trading capabilities. The DeepCore battery pack line serves as a foundational component across various applications. The company operates as a vertically integrated provider offering full-lifecycle services from project development through EPC and long-term operations, with all critical system components (PCS, BMS, EMS, EnergyCloud) developed in-house. Manufacturing capacity spans three facilities in China (Jiangsu, Yaoan, Dali) with annual production capability of 10 GWh.

Differentiator

Problem solved

Functional benefit

Brands

• GridUltra: Utility-scale liquid-cooled battery energy storage system (BESS) solution featuring 5MWh capacity with advanced thermal management and IP67-rated protection.
• VenturePro
• VentureEdge 800
• EnergyHub EMS
• EnergyCloud
• DeepCore Pack
• GridUltra 5016

Products and services

• GridUltra 5016 Utility-scale modular 5 MWh liquid-cooled battery energy storage system engineered for exceptional safety and superior thermal performance, designed for grid operators, utilities, and large IPPs requiring bankable MW-to-GW scale projects.
• VenturePro 250 Fully integrated 250 kWh commercial and industrial liquid-cooled BESS with built-in PCS, BMS, liquid cooling, and fire protection, up to 10,000 cell cycles, 90% AC efficiency, IP54 rating, and modular parallel design for C&I customers.
• VentureEdge 800 Next-generation 800 V AC battery energy storage system tailored for European grid requirements, with grid-forming capability, black start, virtual inertia, and islanding functions for grid stability in weak-grid regions.
• EnergyHub EMS AI-driven energy management system that manages projects up to GW scale with 30 ms active response time, control precision error under 1%, real-time monitoring, predictive maintenance, and intelligent energy trading; supports Modbus/IEC 61850/DNP3 protocols for peak shaving, frequency regulation, and renewable integration.
• EnergyCloud Cloud-based AI platform integrated with EnergyHub EMS for predictive maintenance, intelligent dispatch, remote operations, and sophisticated energy trading strategies including participation in capacity, ancillary, and spot markets across managed energy storage assets.
• DeepCore Pack / DeepCore Ultra Battery pack solutions for energy storage applications in 52.2 kWh configurations, designed for residential and commercial energy storage installations as foundational building blocks across the product portfolio.
• EnerTainment Multi-functional portable power station for emergency and recreational use, designed for disaster response support (50 units donated to Shenzhen Rescue Volunteers Federation).
• Turnkey Project Development & EPC Services End-to-end project delivery including early-stage development, investment structuring, engineering design, manufacturing, installation, and commissioning, plus full lifecycle O&M services from project origination through operations for utility-scale, C&I, and off-grid customers.

Quantifiable outcome

• 2–3% increase in overall system efficiency for GridUltra deployments
• +7 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature7 records

Partnerships

Ten partnerships are on record, tiered core and flagship.

• emPower-EcoreStrategic or Co-development Partner · 15 July 2026RelyEZ Energy signed a Letter of Intent (LOI) with emPower-E, marking a strategic collaboration to accelerate the deployment of Battery Energy Storage Systems (BESS) across key European and Latin American markets. The partnership combines RelyEZ's manufacturing and technology capabilities with emPower-E's regional market expertise.
• VoltkeeperscoreChannel Partner/ Reseller/ Distributor · 2 June 2026Partnership agreement signed during RE-Source SEE 2026 in Bulgaria, marking an important milestone in expanding RelyEZ's footprint across Southeast Europe. Voltkeepers serves as a channel partner for RelyEZ's energy storage solutions in the region.
• Polish Energy Storage Market PartnerscoreChannel Partner/ Reseller/ Distributor · 21 November 2025RelyEZ signed its first 2026 Framework Sales Agreement in Poland, marking an important step forward in expanding its European footprint in one of Europe's fastest-growing energy storage markets.
• Weihai InternationalcoreStrategic or Co-development Partner · 21 November 2025RelyEZ-Weihai Consortium secured EPC contract for a 40 MW solar photovoltaic plant integrated with a 30 MWh BESS in Koudougou, Burkina Faso, West Africa. This reinforces the consortium's growing presence across Africa.
• Latin American Renewable Energy Developer (Unnamed)flagshipStrategic or Co-development Partner · 14 November 2025Strategic collaboration agreement to co-develop, construct, and operate large-scale BESS projects across Chile and other key Latin American markets. The partnership aims to build a 1.8 GW energy storage portfolio in the region.
• Huade Xingyuan New EnergyflagshipStrategic or Co-development Partner · 3 July 2025RelyEZ serves as integrated EPC and full-lifecycle solution provider for the landmark 500 MW/2000 MWh standalone energy storage power station in Ulaanqab, Inner Mongolia, developed with Huade Xingyuan New Energy as project investor.
• DSP (Distribuciones Solares del Principado)coreChannel Partner/ Reseller/ Distributor · 17 April 2025DSP serves as official distributor of RelyEZ's VenturePro product line in Spain, offering tailored support, local stock availability, and expert technical assistance for commercial and industrial customers.
• Black & VeatchcoreImplementation/ SI/ Consulting Partner · 23 September 2024Completion of Independent Assessment (Bankability Report) of RelyEZ's GridUltra Utility-Scale Liquid Cooled BESS Solution by globally recognized advisory firm Black & Veatch, affirming quality, reliability, and market readiness of the solution.
• Munich Re / People's Insurance Company of China (PICC)flagshipStrategic or Co-development Partner · 10 September 2024Long-term insurance agreement formalized at the International Digital Energy Exhibition 2024, providing a 15-year product quality and performance guarantee for utility-scale GridUltra energy storage systems. RelyEZ is one of only five companies worldwide and three in China to offer utility-scale solutions covered by Munich Re insurance.
• Veers GroupflagshipStrategic or Co-development Partner · 28 August 2024Formation of strategic joint venture RelyEZ South Africa (Pty) Ltd at African Energy Forum 2024, combining RelyEZ's R&D, manufacturing, and commercial strengths with Veers Group's local expertise to develop and deploy renewable energy solutions across Southern Africa. The JV is committed to developing local talent and creating jobs in the renewable energy sector.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Fluence Energy: US/Nasdaq-listed pure-play BESS integrator (joint venture of Siemens and AES). Directly comparable to RelyEZ as a Tier 1 utility-scale BESS provider competing for the same utility and IPP RFPs globally, with similar focus on bankability and AI-driven EMS.
• CATL: World's largest lithium-ion battery manufacturer and a Top 5 global BESS system integrator per InfoLink. CATL directly competes with RelyEZ in containerized utility-scale BESS, integrated DC blocks, and energy storage project development at global scale.
• Sungrow: Chinese-headquartered power electronics and energy storage system provider, ranked among Top 5 global system integrators alongside RelyEZ. Both offer containerized BESS, PCS, and utility-scale turnkey solutions, making Sungrow the most direct competitor on product line and target customer.
• BYD Energy Storage: Vertically integrated Chinese battery and BESS manufacturer, Top 5 global system integrator. Competes with RelyEZ across utility-scale, C&I, and emerging market storage projects, with similar vertical integration spanning cells, PCS, and systems.
• Tesla Energy (Megapack): Manufacturer of Megapack LFP BESS for utility-scale storage, directly competing with RelyEZ GridUltra in North American and global utility RFPs. Comparable vertically integrated product (cells, PCS, software) with LFP chemistry and large-format containers.
• EVE Energy: Chinese battery manufacturer with significant BESS division producing 280 Ah and 314 Ah LFP cells used in utility-scale storage. Competes directly with RelyEZ in 5 MWh containerized BESS and is launching comparable immersion-cooled products.

Broad incumbents

• Saft (TotalEnergies): French battery manufacturer (owned by TotalEnergies) producing containerized BESS for utility, C&I, and heavy industry. Comparable to RelyEZ's utility product line but positioned as a diversified incumbent with broader industrial battery focus.
• Wartsila Energy Storage: Finnish broad energy solutions provider with GridSolv BESS product line. Overlaps with RelyEZ in utility-scale energy storage and grid services but operates as a wider portfolio incumbent rather than a BESS specialist.

Emerging players

• Stem Inc: AI-driven energy storage and management software provider (now part of another entity). Comparable to RelyEZ's EnergyHub EMS and EnergyCloud platform in providing AI-optimized dispatch and trading for distributed storage assets, though Stem focuses on C&I/aggregated assets rather than utility-scale.
• POWIN Energy: US-based BESS system integrator specializing in utility-scale energy storage projects. Comparable to RelyEZ in offering containerized LFP BESS and EMS software, though smaller in scale and focused primarily on North American markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/relyez-energy-storage

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RelyEZ Energy Storage