Weak Grid & Peak Shaving - Green Cubes Technology | Lithium-ion Power Systems Manufacturer

Weak Grid & Peak Shaving

Often grid power might not be reliable in your location, or the connection to the grid isn’t large enough for your equipment. In these cases, Lithium-Ion batteries can store energy for use in periods of grid failure, or to supplement the grid power to enable larger loads. Utilizing the high cycle life, and always available power of lithium-ion batteries can allow operators to install mission critical or high-power equipment in places otherwise impossible.

As the world moves toward the electrification of cars, trucks, and automated guided vehicles the demand for high power local charging is increasing. Many locations such as airports, factories, and apartment complexes were not built anticipating the substantial number of electric vehicles that will be on premises in the future. All these vehicles need to charge when not in use and can significantly increase the electrical demand on the existing infrastructure. It can be very costly to increase the electrical service to the building, and it will cost more to have more electricity available at any moment (demand charge).

Using lithium-ion batteries and a grid tied inverter can provide peak shaving capabilities. When an electric vehicle connects to their charger and demands electricity, the battery and inverter can turn on to provide the peak power to the vehicle and reduce the strain on the grid connection. This peak shaving capability allows multiple large loads to be installed in a location that may not be able to power all of them at the same time.

In places where the grid connection may be weak or not reliable using a lithium-ion battery backup system paired with an inverter can provide power when the grid fails and charge up the battery when the grid connection is stable. Applications that typically benefit from this type of system include remote or rural locations outside of minor cities, users located on poorly constructed or overwhelmed electrical grids, and places with lots of outages caused by weather or construction.

Lithium-Ion batteries are the critical pillar in a fossil fuel-free economy and their use in electric vehicles and stationary energy storage have grown exponentially in recent years, due to technological advances and significant price declines. This is making Lithium-Ion batteries a cost-effective solution for energy storage and backup applications over the incumbent lead acid solutions.

Green Cubes manufactures and supplies all the components you need to build a peak shaving or weak grid power system that fits your needs. Green Cubes Battery Backup Units (BBUs) can be used as modular building blocks of a BESS. Green Cubes Lithium-Ion Systems provide the following benefits over traditional backup diesel generators:

  • Carbon Footprint
    Lithium-Ion microgrids with solar and wind offer a clean environment friendly option over diesel generators and their harmful CO2 emissions.
  • High efficiency
    Lithium-Ion batteries charge and discharge with over 98% efficiency.
  • Less maintenance
    Lithium-Ion batteries do not require maintenance like diesel generators or lead acid batteries.
  • Higher energy density
    Lithium-Ion batteries offer the highest energy density storing more energy in less space.
  • Lower Operating Costs
    Lithium-Ion microgrid systems can keep your location online all the time, reducing losses from unexpected shutdowns.

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Products

Aspiro 1U

Features and Options
  • 95% Efficiency Rectifiers
  • 45A / 2.4kW Capacity
  • Intelligent Battery Management
  • Remote Monitoring & Control
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • 4 Form-C Relay Alarms
  • 4 Load Breakers
  • 1 Battery Breaker
  • LCD Display/Touchpad

Aspiro 2U

Features and Options
  • >95% Efficiency Rectifiers
  • 60A / 3.2kW Load Capacity
  • Full Front Access
  • Intelligent Battery Management
  • Remote Monitoring & Control
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • 4 Form-C Relay Alarms
  • 8 Load & 2 Battery Breakers
  • LCD Display/Touchpad
  • Easy Installation

Guardian 3U

Features and Options
  • >96% Efficiency Rectifiers
  • 300A / 14.4kW Total Capacity
  • Remote Monitoring & Control
  • Intelligent Battery Management
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • Up to 10 Form-C Relay Alarms
  • Up to 13 Load Breakers
  • Up to 3 Battery Breakers
  • LCD Display/Touchpad
  • Easy Installation

Guardian 5-6U M31

Features and Options
  • >96% Efficiency Rectifiers
  • 480A / 23.2kW Load Capacity
  • Remote Monitoring & Control
  • Intelligent Battery Management
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • Up to 10 Form-C Relay Alarms
  • Up to 20 Load Breakers
  • Up to 6 Battery Breakers
  • LCD Display/Touchpad
  • Easy Installation

Guardian 5-7U M38

Features and Options
  • >96% Efficiency Rectifiers
  • 60A to 600A (N+1) Capacity
  • Remote Monitoring & Control
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • 10 Form-C Relay Alarms
  • Up to 20 Load Circuits
  • 600A LVBD Standard
  • LCD Display/Touchpad
  • Easy Installation

Guardian Hybrid

Features and Options
  • High efficiency rectifiers and converters
  • Hybrid Bus Architecture
  • Flexible, Modular, Integrated solutions
  • Grid connect, off-grid and renewable ready
  • Maximum Power Point Tracking

Guardian Bulk 7U

Features and Options
  • >96% Efficiency Rectifiers
  • 600A (N+1) Capacity
  • Remote Monitoring & Control
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • 10 Form-C Relay Alarms
  • LCD Display/Touchpad
  • Easy Installation

Guardian Bulk 10U

Features and Options
  • >96% Efficiency Rectifiers
  • 1200A (N+1) Capacity
  • Remote Monitoring & Control
  • Field Replaceable Controller
  • Ethernet Comm. with SNMPv3
  • 3 LED Alarm/Status Indicators
  • 10 Form-C Relay Alarms
  • LCD Display/Touchpad
  • Easy Installation

ARE-S Charger

Features and Options
  • Digital Controls with 4 button keypad allows for live charger setting and alarm adjustments
  • Floor, wall, and relay rack mounts are available on most models
  • Single-Phase 120, 208, 240 or 480VAC input
  • 48VDC with 6, 12, 30, or 50A output
  • 130VDC with 6, 12, 16, 25, 35, 50 or 75A output
  • Easy maintenance
  • Modular design of major components
  • Visual indicators with time delays to prevent nuisance alarms
  • Inherently Safe Design
  • Safety Agency Listed to UL 1012 and CSA 107.1

ARE-M Charger

Features and Options
  • 24, 48 and 130V Models
  • 6 to 100 Amperes Output
  • High Efficiency and Power Factor
  • Single-Phase, Controlled Ferroresonant
  • Digital Controls
  • Low Electrical Noise
  • Inherently Safe Design
  • Low Maintenance
  • Temperature Compensation

ARE Charger

Features and Options
  • 24V, 48V and 130V Models
  • 6 to 50A Output
  • High Efficiency
  • High Power Factor
  • Low Noise Levels
  • Current Limiting
  • Easily Maintained

ARR-M Charger

Features and Options
  • Microprocessor Controlled
  • Digital Metering
  • Simultaneous Voltage & Current Readings
  • 24, 48, 125 & 250V Output
  • 25A to 500A
  • Listed to UL/CSA
  • CE safety and EMC standards tested and compliant
  • Designed to NEMA PE5 standard insures reliable performance under real world conditions
  • Low Maintenance
  • Common control board for all output voltages and current ratings reduce spares requirements and simplifies maintenance.
  • Remote Communications – MODBUS & DNP3
  • User definable control and alarm set points
  • Temperature Compensation
  • High efficiency & power factor
  • Design provides for reliable power requirements on or off the battery

Guardian 48V Rectifier

Features and Options
  • High efficiency and energy saving
  • 96.2% peak efficiency
  • Leading power density of up to 32W/in3
  • Rugged input voltage range
  • Thermal protection
  • Hot-swappable
  • International standards compliance

Guardian Solar Converter

Features and Options
  • True MPPT >99% energy harvest
  • Auto-detection of PV array size
  • 2.9kW output power
  • Rugged input voltage from 130-360VDC
  • 95% efficiency
  • International standards compliance
  • Thermal protection
  • Modular design, interoperable with AC-DC rectifiers in Guardian Systems

Guardian 24V Rectifier

Features and Options
  • Highly efficient topology with power factor correction
  • Wide output voltage range: 23-28.5VDC
  • High density design: 1.4kW/l
  • 1U high: 4.2” x 1.6” x 13.3” cassette
  • RS485 interface status and control
  • RS485 voltage and current limit setting
  • Over temperature, output over voltage and output overcurrent protection, Power limitation

Aspiro 48V Rectifier

Features and Options
  • >95% typical efficiency
  • Leading power density of up to 21.8W/in³
  • Rugged input voltage range
  • Thermal protection
  • Hot-swappable
  • International standards compliance

HCX Controller

Features and Options
  • User-selectable battery types
  • Intelligent Generator control
  • Diesel Generator and Renewable Energy ready
  • USB Interface and Form “C” dry alarm contacts
  • 100 Mbps Ethernet interface + web server support
  • Remote firmware upgrade
  • 1-minute-interval microSD card data logging

GCC controller

Features and Options
  • Supports Li-Ion and VRLA batteries
  • User-selectable alarm parameters
  • USB or RS232* Interface
  • Form “C” dry alarm contacts
  • Programmable alarm routing, logic unit and analog inputs
  • 100 Mbps Ethernet interface with IPv4 & v6 support + built in web server + SNMP v1, v2c, v3.
  • 1000-event alarm log
  • Audible Alarm
  • Remote configuration upgrade
  • Micro SD card data logging
  • Thermal protection for batteries & rectifiers
  • Hot-swappable
  • International standards compliance

1U Pluggable DC Breaker Panel

Features and Options
  • 48/24V Dual Voltage
  • POLARITY NEUTRAL
  • 150A bus bar inputs
  • Single or Dual Feed
  • NO tools required to change breakers
  • Tapered entry for easy insertion
  • NO or NC alarm contacts
  • Alarm LEDs
  • Power Fail form-C alarm
  • 19″ & 23″ universal mounting brackets
  • Rear panel safety cover standard

1U Fixed DC Breaker Panel

Features and Options
  • One Mounting Position High: 1.75″
  • 19- or 23-Inch Rack Mounting
  • Magnetic Circuit Breakers
  • Single Bus with 1 to 12 Breakers
  • Dual Bus (A/B) with 1 to 6 Breakers each side
  • Voltage: 12, 24 or 48VDC
  • POLARITY NEUTRAL
  • A & B are Isolated Loads
  • A & B Can Be Separately Configured
  • 1A to 50A per Breaker
  • Bus Capacity: 150A per Bus
  • Green/Red LED Breaker Alarm
  • Two Form C Relay Contacts per Bus (A/B)
  • Rack Offset Every ¼” from Front to Back
  • Fail Safe Option
  • Circuit Breaker Panels

1U AC Breaker Panel

Features and Options
  • One Rack Space High: 1.75”
  • 19- or 23-Inch Rack Mounting
  • Terminal BlockOutputs
  • Voltage: 120VAC or 230VAC Nominal
  • Up to 8 AC Circuits with Breakers
  • Single (A) or Dual (A & B) Sections
  • 50A AC Per Section (100A Total)
  • Common or Isolated A & B Sections
  • A & B Can Be Separately Configured
  • AC Breaker Capacities: 5A to 30A
  • Up to 4 Inputs
  • Rack Offset Every ¼” from Front to Back

2U DC Breaker Panel

Features and Options
  • 48/24V Dual Voltage
  • POLARITY NEUTRAL
  • 450A bus bar inputs (900A total)
  • Dual Feed (optional Single Feed)
  • “Mid-Trip” circuit breaker function
  • Circuit Breaker ‘puller’ included
  • Tapered entry for easy insertion
  • NO or NC alarm contacts
  • Alarm LEDs
  • Power Fail form-C alarm
  • 19″ & 23″ universal mounting brackets
  • Rear panel safety cover standard

3U 23in DC Breaker Panel

Features and Options
  • 3RU High: 5.22”
  • 23-Inch Rack Mounting
  • Current Capacity: 600A
  • Operating Voltage: +24 or -48VDC
  • 24 Breakers – 5A to 125A
  • LED Alarm Indicator
  • Form C Relay Contacts

3U 19in DC Breaker Panel

Features and Options
  • 3RU High: 5.22”
  • 19-Inch Rack Mounting
  • Current Capacity: 500A
  • Operating Voltage: +24 or -48VDC
  • 18 Breakers – 5A to 100A
  • LED Alarm Indicator
  • Form C Relay Contacts

3U 23in Battery Breaker Panel

Features and Options
  • 3RU High: 5.22”
  • 23-Inch Rack Mounting
  • Current Capacity: 500A
  • Operating Voltage:+24 or -48VDC
  • 13 Breakers – 5A to 100A
  • Integral Return Bar
  • LED Alarm Indicator
  • Form C Relay Contacts

4U 23in DC Fuse Panel

Features and Options
  • 4RU High: 6.97”
  • 23-Inch Rack Mounting
  • Current Capacity: 600A
  • Operating Voltage: +24 or -48VDC
  • 20 x TPS Fuses – 3A to 70A
  • LED Alarm Indicator
  • Form C Relay Contacts
  • Spare Fuses May Be Stored In Each Fuse Block Handle

Bravo TSI 48/120 Inverter

Features and Options
  • Extra AC input for increased efficiency
  • Compact design
  • Up to 30kVA
  • No disturbances on DC loads & batteries

Bravo ECI 48/230 Inverter

Features and Options
  • Extra AC input for increased efficiency
  • Compact design
  • Up to 36kVA
  • 1-phase, split phase or 3-phase
  • No disturbances on DC loads & batteries

Scimitar 1000 & 2000

Features and Options
  • 19-Inch x 1UR Rack Mounting
  • 1000 or 2000 VA Output Capacity
  • 115VAC or 230VAC Output
  • 50 or 60Hz Low Distortion Sine Wave
  • 12, 24 or 48VDC Input
  • -20 to +60C Operating Temperature Range
  • Static Transfer Switch Built-in
  • Programmable Output Voltage and Frequency (Front panel DIP switch)
  • Powers Reactive Loads
  • LED Status Display
  • Relay Alarm Output

Scimitar 3000

Features and Options
  • 19-Inch x 2RU Rack Mounting
  • 3000W Output Capacity
  • 115VAC or 230VAC Output
  • 50 or 60Hz Low Distortion Sine Wave
  • 12, 24 or 48 VDC Input
  • -20 to +50°C Operating Temperature
  • Static Transfer Switch Built-in
  • Adjustable Output Voltage
  • Programmable Frequency (DIP switch)
  • Powers Reactive Loads
  • LED Status Display
  • Relay Alarm Output

Scimitar 5000

Features and Options
  • 19-Inch x 3RU Rack Mounting
  • 5000W Output Capacity
  • 115VAC or 230VAC Output
  • 50 or 60Hz Low Distortion Sine Wave
  • 24 or 48 VDC Input
  • -20 to +50°C Operating Temperature
  • Static Transfer Switch Built-in
  • Adjustable Output Voltage
  • Programmable Frequency (DIP switch)
  • Powers Reactive Loads
  • LED Status Display
  • Relay Alarm Output

175 Ah Battery Backup Unit | GBU-2U

Features and Options
  • 2RU High variant with 175Ah of capacity
  • 23-Inch Rack Mounting
  • Current Capacity: 100A
  • Operating Voltage: 48Vdc
  • Scalable, connect multiple units in Parallel
  • RS-485 Communication Ports

105 Ah Battery Backup Unit | GBU-3U

Features and Options
  • 3RU High variant with 105Ah of capacity
  • 19-Inch Rack Mounting
  • Current Capacity: 100A
  • Operating Voltage: 48Vdc
  • Scalable, connect multiple units in Parallel
  • RS-485 Communication Ports

160 Ah Battery Backup Unit | GBU-4U

Features and Options
  • 4RU High variant with 160Ah of capacity
  • 19-Inch Rack Mounting
  • Current Capacity: 100A
  • Operating Voltage: 48Vdc
  • Scalable, connect multiple units in Parallel
  • RS-485 Communication Ports

Customer Ratings and Reviews

Green Cubes is a great company, great engineers, great product. That’s been kind of my number one go to [lithium] battery.

President, Industrial Power Company

The thing I like about Green Cubes is that they have other lines of business outside of material handling batteries, they have been in the lithium world for a long time. I can trust they will likely stay in business

VP, Industrial Battery Company

Green Cubes [differentiates] on its capability to custom design for things like the hardware, the firmware, and inverters. They also have economies of scale because they make battery systems for things like forklifts.

VP, Powered Cart OEM

I am doing some work with them right now. We’re learning their products, and looking at demos. They have good people. They seem like they know the technology well – they say they’re a technology company. I like that they’ve been in the lithium business a long time. I can trust they will likely stay in business.

Sales Manager, Industrial Battery Company

Green Cubes Technology would be my go-to for lithium applications.

Branch Manager, OEM

I’ve told my friends at Green Cubes, I don’t plan on going anywhere. I believe in loyalty.

President, Industrial Power Company