Tier-1 Industrial Energy Architecture & OEM Standards

Wholesale Off Grid Solar Power System Factories & Pricelist

Engineering turnkey multi-megawatt mini-grids, industrial energy storage systems (BESS), and toroidal-transformer LF inverters. Factory direct supply with complete IEC, TUV, and CE validation since 2009.

Direct Sourcing Catalog (Top Batch)

Essential Off-Grid & Turnkey Clean-Tech Systems

Field-proven components matched for zero commissioning latency, extreme surge tolerance, and high-efficiency yield across industrial and micro-grid settings.

Flagship Platform Solar Power Systems Turnkey Package

Commercial & Residential Turnkey Solar Systems

Single-BOM fully tested complete photovoltaic micro-grids engineered with pre-wired combiner boxes, hybrid controllers, and high-discharge storage cells.

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Autonomous O&M Robotic Solar Array Cleaner

Intelligent Solar Cleaning Robot Platform

Track-driven dry and wet cleaning robot, reclaiming up to 25% soiled output loss in desert, agricultural, and industrial installation sites without water dependency.

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Inductive Load Power Low Frequency Power Inverter Charger

Heavy-Duty Low Frequency Power Inverters

Integrated toroidal transformer engineered for 300% surge capacity handling on industrial deep well pumps, heavy refrigeration, and unstable generator backup lines.

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Energy Storage Lithium & Gel Solar Battery Bank

LiFePO4 & Deep-Cycle Solar Battery Banks

High volumetric density storage with integrated automotive-grade BMS. Over 6000 deep discharge cycles designed for continuous uninterrupted autonomous runtime.

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Decoupled Micro-Grid Complete Off-Grid Solar Generation Kit

Off-Grid Solar Standalone Kits (1kW - 100kW)

Pure sine wave output complete setups featuring intelligent generator auto-start protocols and scalable parallel configurations for remote facilities.

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Fast Maintenance Automatic Dual Head Cleaning Brush

Dual-Head Automatic Solar Cleaning Brushes

Lightweight carbon-fiber telescopic arm with counter-rotating disc brushes. Engineered for rapid rooftop array scrubbing with minimal water spray volume.

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Smart Storage Energy Storage Hybrid Inverter

Intelligent Energy Storage Hybrid Inverters

Multi-channel MPPT solar controller merged with bi-directional AC-coupling logic, delivering sub-10ms UPS grade power transfer during outage spikes.

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Utility & Micro-Grid On-Grid Industrial Solar Array

Utility-Interactive On-Grid Solar Systems

High-voltage string configurations optimized for commercial peak shaving, industrial factory self-consumption, and feed-in tariff monetization setups.

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Industry White Paper Analysis

Global Macro Landscape of Off-Grid Energy & Industrial Decarbonization

Evaluating the structural transition from fragile fossil-fuel gen-sets to decentralized, dispatchable mini-grids across emerging and developed utility systems.

Levelized Cost of Electricity (LCOE) Parity

Diesel generation operating expenses in remote operations have exceeded $0.45/kWh due to rising logistics and fuel volatility. Modern solar-plus-storage platforms have pushed off-grid LCOE down below $0.12/kWh, delivering CAPEX amortization within 36 months for typical mining, agriculture, and industrial sites.

Weak-Grid & Micro-Grid Resiliency

Across Sub-Saharan Africa, Southeast Asia, and Latin America, grid instability causes catastrophic production losses. Modern off-grid systems deploy low-frequency toroidal architecture capable of isolating the factory floor entirely from transmission brownouts and frequency fluctuations.

Direct Sourcing vs. Trading Middlemen

Procuring through secondary trading brokers creates fragmented warranties and mismatched topologies. Factory-direct partnerships ensure every cell, transformer, firmware string, and controller register matches identical protocol specs, slashing EPC commissioning delays by 40%.

Engineering Blueprint & Factory Quotes

Wholesale Off-Grid System Specifications & Sizing Matrix

Comprehensive component breakdown, operational autonomy capacity, and indicative wholesale pricing parameters for EPC contractors and authorized importers.

System Scale Typical Daily Yield Battery Bank (LiFePO4) Inverter Architecture Target Scenario Wholesale Reference
5kW / 48V Compact 20 – 25 kWh 10.24 kWh (51.2V 200Ah) Toroidal LF / 32-bit DSP Pure Sine Rural Homesteads & Telecom Towers $2,800 – $4,200
10kW / 48V Pro 40 – 55 kWh 20.48 kWh (Rack-Mount BMS) Split-Phase / High-Surge Hybrid Agri Pumps & Eco-Lodges $5,400 – $7,900
30kW / 192V Industrial 120 – 160 kWh 61.4 kWh Industrial Pack High Voltage MPPT + Bi-directional Inverter Cold Storage & Rural Processing $14,500 – $19,800
100kW+ Commercial Mini-Grid 400 – 600 kWh 200+ kWh Containerized BESS Modular Multi-Cluster Architecture Island Grids, Mining, Manufacturing Custom Factory Quote

Battery Sizing Formula

Calculated as: Daily Demand (kWh) × Days Autonomy ÷ DoD (0.90 for LiFePO4). Guarantees continuous load supply across prolonged adverse weather spells without over-cycling cells.

Toroidal Transformer Factor

Low-frequency toroidal cores achieve >94% conversion efficiency with minimal magnetic leakage, isolating critical electronics from motor back-EMF spikes.

BMS Communication Integration

Native CANbus and RS485 bidirectional protocols enable seamless handshakes between inverters and battery packs, preventing premature disconnects and cell deviation.

Deployed Engineering Topologies

Global Reference Applications & Field Implementations

How Beijing Multifit (VMAX POWER) turnkey hardware functions in extreme environments: from arid deserts to high-salinity island coastal zones.

Residential Solar Application

Independent Agricultural Mini-Grids

Installed in Western Australia and Southeast Asian rural estates. System pairs 15kW PV arrays with low-frequency inductive inverters to power submersed irrigation pumps, running 100% off-grid without grid reliance.

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Desert Photovoltaic Application

Desert & Arid Mining Micro-Grids

Integrated in the Gobi Desert and Middle East facilities. Utilizes automated crawler robots to eliminate heavy dust build-up daily, while 100kW LF storage inverters withstand high ambient heat fluctuations.

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Commercial Industrial Array

Island & Coastal Facility Autonomy

Deployed on remote island resorts and telecom towers. Built using anti-corrosion, salt-spray-resistant conformal coatings on inverter circuit boards, providing uninterruptible 240V/415V power.

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Institutional Reliability & Compliance

15+ Years Factory Track Record & Global Compliance Validation

Beijing Multifit Electrical Technology Co., Ltd. (Equity Code: 280768) operates under audited international manufacturing and quality assurance frameworks.

CE & TUV Tested

More than 20 CE certifications validating electromagnetic compliance (EMC) and low-voltage electrical safety directives.

IEC Compliance

Full compliance with IEC 62109-1/-2 for inverter safety and IEC 62619 for industrial lithium storage battery modules.

ISO 9001 / 14001

Standardized multi-tier QA: incoming component stress testing, full-load burn-in, and pre-shipment oscilloscope audits.

20+ Patents

Proprietary inverter switching topology, advanced MPPT tracking algorithms, and autonomous panel robotic drives.

2009
Year Founded
80+
Export Countries
280768
Listed Equity Code
20+
Certified Patents
R&D Innovation Horizon

Next-Generation Off-Grid Technological Trajectory

How Beijing Multifit integrates GaN/SiC semiconductors, high-voltage battery architecture, and edge AI algorithms into tomorrow's standalone mini-grids.

Silicon Carbide (SiC) Power Topologies

Transitioning from traditional IGBTs to Wide Bandgap SiC MOSFETs allows inverters to operate at much higher switching frequencies, reducing magnetic core weight by 35% and elevating full-load efficiency beyond 98.2%.

Edge AI Cloud Predictive Analytics

Integrating real-time meteorological forecasting modules directly into inverter firmware. The system preemptively optimizes battery charging and diesel generator start-ups before bad weather sets in, preserving battery cycle health.

Autonomous Robotic Fleet O&M

Development of self-docking, wireless-charging solar cleaning robots capable of autonomously servicing multi-hectare ground-mounted solar plants without human intervention, drastically lowering O&M expenditures.

Procurement & Technical Support

Frequently Asked Questions for Global Procurement

Comprehensive responses addressing import requirements, certification verification, and custom system engineering.

Is VMAX POWER a manufacturer or a trading company?
VMAX POWER is the brand of Beijing Multifit Electrical Technology Co., Ltd., a listed manufacturer (equity code 280768) founded in 2009 and located in the Beijing Economic & Technological Development Zone. We operate in-house R&D labs, production lines, and project engineering construction divisions, allowing international buyers to source directly from the factory floor without broker markups.
Which certifications do your solar products hold?
Our products and production processes are accredited under CE, TUV, IEC, ISO 9001, and ISO 14001 standards. We hold more than 20 CE certificates and over 20 proprietary design patents. Official certification documents and test reports are available upon request for regulatory tenders.
Do you offer OEM and ODM services for distributors?
Yes. We support extensive OEM private labeling and complete ODM technical customization for power inverters, solar cleaning equipment, battery packs, and complete turnkey kits. Customizations include system capacity, exterior branding, LCD firmware interfaces, and regional AC voltage/frequency standards.
Can I source a complete solar power system from one supplier?
Yes. We engineer and deliver complete, factory-matched on-grid, off-grid, and hybrid solar power systems. Solar modules, inverters, storage batteries, charge controllers, and mounting hardware are pre-tested to eliminate on-site compatibility challenges for EPC contractors. Browse our Solar Energy Systems portfolio.
Should I choose a low-frequency or high-frequency inverter?
Select a low-frequency inverter equipped with a toroidal transformer when powering heavy inductive loads like motors, pumps, air compressors, or industrial machinery that require up to 300% surge handling. Opt for a high-frequency inverter when compact size, light weight, and lower unit cost are the main goals for residential electronics.
How can I obtain the latest catalog and wholesale pricelist?
You can access our download portal via the Request a Catalog page, or reach out directly to our engineering team at [email protected] or phone/WhatsApp at +86-15801582755 / +86-15910870754 for custom quotes, technical drawings, and freight estimates.
Direct Sourcing Catalog (Bottom Batch)

Solar Generation, Inversion & Lighting Components

Factory-direct electrical gear engineered to round out balance-of-system (BOS) requirements for residential, municipal, and industrial installations.

Compact Inversion High Frequency Solar Inverter

High-Frequency Pure Sine Inverters

Ultra-lightweight, high power density inverters designed for domestic appliances, remote offices, and sensitive telecommunication networks.

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High Efficiency Monocrystalline Tier 1 Solar Panels

High-Efficiency Monocrystalline PV Modules

Half-cut cell architecture with multi-busbar technology yielding up to 21.8% efficiency, designed for low-irradiance and high-temperature environments.

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Intelligent Control MPPT Solar Charge Controller

Industrial MPPT Solar Charge Controllers

Advanced ultra-fast maximum power point tracking reaching >99.5% tracking efficiency with automatic 12V/24V/48V voltage bank identification.

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Commercial Lighting Commercial Solar Flood Light

Industrial Solar Flood Lights (IP66/IP67)

High-lumen outdoor illumination with die-cast aluminum heat sinks, remote optics controls, and long-life LiFePO4 internal storage cells.

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All-In-One Integrated Solar Street Light

All-In-One Integrated Solar Street Lights

Streamlined solar lighting systems combining panel, battery, intelligent radar motion sensor, and high-efficiency LED arrays into one enclosure.

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Landscape Solar Solar Garden Light Landscape Solution

Architectural Solar Garden & Pathway Lights

Corrosion-resistant solar lights designed for commercial campuses, resorts, and municipal public parks with automatic dawn-to-dusk sensors.

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Array Maintenance Clean Solar System Cleaning Solution

Turnkey Clean Solar O&M Maintenance Systems

Integrated cleaning rigs combining mobile pressure modules and multi-angle brush heads to prevent irreversible panel hot-spot failures.

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Components Hub Solar Products & Accessories

Complete Balance-of-System (BOS) Accessories

One-stop factory supply of surge arrestors, solar cables, waterproof branch connectors, and custom IP65 combiner boxes.

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Request Your Custom Factory Pricelist & System Design

Connect directly with Beijing Multifit (VMAX POWER) engineers. Share your load profile, site parameters, or OEM private-label requirements for an accurate factory proposal within 24 hours.

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