The most flexible all in one energy storage solution on the market today

  • Modular for a flexible approach to energy storage

  • Market leading power density and efficiency

  • Ultra-Low Installation Cost/Time

  • Manufactured in Great Britain


Our Flex-ESS500 hybrid power system is a fully-factory-built and tested, high-density, modular energy solution. It offers reduced project risk and cost thanks to its simple installation, small footprint, and lightweight construction. It also offers low operating costs thanks to its enclosed cooling and durable housing. Integrating KORE Power energy storage and our ground-breaking FLEX Inverter, Flex-ESS500 achieves an industry-leading, optimising footprint for applications where space is constrained or at a premium. Working with multiple power sources and output configurations, the Flex-ESS500 provides the ultimate, flexible approach for most applications.

System Configuration

The FLEX-ESS system can be paralleled to multiple MW level in a highly variable range of storage and power configurations. Each GRP housing contains 500kVA of 3 phase AC Power with stacks of 104kWh of storage to a maximum of 832kWh.

Additional energy expansion modules are available with each box housing upto 1MWh of additional capacity, configurable as required.

With its small footprint, multi box configurations can be arranged to preserve space in limited areas and still be planning friendly or discreet installations in any colour preference.

Flex-ESS500 for low cost project overheads

Inverter

  • Reduced infrastructure & component costs

  • UPS function offering protection to your facility

  • Both Off & On grid forming and following

  • Peak efficiency 98.6% lowest 97%

  • Outdoor housing IP64 (indoor version available)

Storage

  • Long lifespan with all components designed to last 5000 to 6000 cycles and 10/15/20 year lifespan

  • British-engineered 10/15/20-year performance and 5/10/15 year product extendable warranty

  • Maximum safety, modules certified to UL9540A

  • Easily expandable flexible energy storage system can be sized according to need

  • Optimised battery performance via the Master/String-Rack Controller (SRC)

    Li-ion Tamer off-gass protection

BESS

Modular and expandable, the FLEX-ESS500 offers installers a plug-and-play, factory built-and-tested, solution.

The thermally insulated and ultra durable housing ensures ideal climatic conditions for the ESS. Parasitic loads are minimised by water cooling the inverter and HVAC for the KORE Mark 1 batteries results in class leading efficiencies.

  • Ultra low footprint

  • Easily transported on site by forklift or Hiab

  • Factory-built and tested

  • Secure and ultra-durable

  • Thermally optimised

  • Maximum energy density

  • Flexible layout options

  • Plug-and-play, delivery to commissioning hours, not days

  • IP 64 rated enclosure

Flex-ESS500 for a full spectrum of energy demands.

On Grid/Grid Services

With ultra-fast response bidirectional 4-quadrant operation, the Flex-ESS500 system offers ACTIVE and REACTIVE power services to both industrial and commercial operators. With only the highest quality components and water cooling, the system delivers outstanding up time, minimal OPEX and > 20 years service life, ensuring long term reliable access to those current and future revenue streams.

  • Voltage control and droop

  • Power factor control

  • Reactive power (VAR)

  • Frequency regulation and response

  • Peak shaving

  • Curtailment avoidance

  • Scheduled shifting or islanding

  • Accurate and fast ramp rate control

  • Black start and UPS

  • Remote command power and operation

  • 24hr automated system monitoring

  • EV Charging

Off Grid

From microgrid to industrial power, FLEX-ESS500 gives you the power you need when you need it. With the ability to deliver 100% capacity to the AC load and still store excess solar, direct line control and optimise any fuel derived generation, keeping OPEX to a minimum and maximising revenue.

  • 500 kVa Hybrid inverter

  • Grid-forming and following

  • High-performance storage by KORE Power

  • Black start

  • Generator reserves displacement

  • Ramp rate control

  • Power factor correction

  • Load and peak shaving

  • EV Charging

Flex-ESS500 System Specification.

Power

500kVA

Storage

Max 832 kWh per housing

Energy expansion storage

In 104 kWh blocks upto 1040 kWH. Energy expansion boxes housing upto 1,040kWh

AC voltage

380/400/415/480/600 VRMS 3-phase 3-wire delta (Delta-Wye Transformer required for specific Voltage requirements, and for 4-wire distribution)

AC frequency

50-60 Hz

Communication protocol

Modbus TCP/IP (others available)

Ambient temperature (operation)

-20oC to 45oC

Shipping dimensions & weight

Storage: 2.5m x 3.4m x 1.4m (HxWxD), 9 metric tons

Maintenance envelope (openings etc.)

Storage: 1.2m projection to front Inverter: 1.0m projection to front. 0.3m to sides

Site power requirements

None, Self-powered

Warranty

10/15/20 years

Product Patent: 6107310

Get full specification information

Download the brochure