ENERSTACK

Battery Energy Storage Systems for Home, C&I and Grid

LiFePO4 battery storage engineered and built in our own 42,000 m2 factory: wall batteries from 5 kWh, commercial cabinets to 2 MWh and containerized BESS to 5 MWh, delivered with BMS, EMS and grid paperwork done right.

6,000+
cycles at 80% DoD
30-45
days to shipment
10-yr
performance warranty
Containerized battery energy storage station with LFP battery containers at dusk
System status SOC 70% / charging
  • 0storage shipped since 2013
  • 0countries with our systems on grid
  • 0projects, residential to utility scale
  • 0field failure rate across installed base

Storage Solutions for Every Scale

The same cell, BMS and firmware platform runs from a garage wall to a grid substation, so your service team only learns one system.

Home battery storage with rooftop solar on a modern house

Residential

Solar battery storage systems for installers: self-consumption, backup circuits and time-of-use shifting with app monitoring.

5-30 kWh
Commercial battery storage cabinets beside a factory with rooftop solar

Commercial & Industrial

Peak shaving, demand response and solar pairing for factories, cold stores and EV fleet depots.

100 kWh-2 MWh
Grid scale battery storage farm with containerized BESS units and solar

Utility & Grid

Grid scale battery storage for frequency response, capacity firming and solar plus storage plants.

5-200 MWh
Off grid battery cabinet powering a remote telecom tower at dusk

Off-Grid & Telecom

Island microgrids, mine camps and telecom towers where diesel runtime is the cost to beat.

10 kWh-1 MWh

Why Integrators Choose ENERSTACK

EPCs and distributors stay because the systems bank test hours before they ship and the paperwork holds up in front of the utility.

Cell-to-System Traceability

Every pack maps to cell lot, test log and firmware build. One serial number pulls the whole history.

UL 9540A Tested Design

Modules pass UL 9540A unit level burn testing, with IEC 62619, UN38.3 and CE on the system.

Own BMS and EMS Stack

Three-level BMS plus site EMS with Modbus, CAN and IEC 61850 so it talks to any inverter or SCADA.

6,000 Cycle LiFePO4

Grade A prismatic cells cycled to 6,000+ at 80% DoD, backed by a 10 year performance warranty.

Grid Code Engineering

We pre-configure to your market: UL 1741 SB, G99, VDE-AR-N 4105, AS/NZS 4777.2 profiles on file.

48-Hour Engineering Reply

Sizing calcs, single line diagrams and datasheets come back from an engineer, not a sales inbox.

From Load Study to Grid Connection in Five Steps

One project engineer owns your order from the first load profile to the witness test, and you see the data at every gate.

  1. 01

    Load Study

    Send interval data or bills. We size capacity, power and duty cycle against your tariff.

  2. 02

    System Design

    Single line diagram, layout and grid application pack issued for your sign-off.

  3. 03

    Build & Test

    Packs cycle on the bench, full system burn-in with your charge profile loaded.

  4. 04

    Ship & Install

    DDP or FOB with UN38.3 dangerous goods files, install supervised remotely or on site.

  5. 05

    Commission

    Witness test against the grid code, EMS handover and warranty registration.

Have a load profile or an RFQ on your desk?

Send it over: sizing, budget pricing and lead time come back within 48 hours.

Start the Sizing

Projects We Commissioned This Year

Three deliveries that show the span of one platform: a grid support plant, an island microgrid and a residential distribution program.

Engineers commissioning containerized BESS units at a grid scale storage site
Texas, US20 MWh

Grid Support Plant

Four 5 MWh containers on ERCOT ancillary duty, from PO to energization in 26 weeks.

Island solar microgrid with containerized battery storage by the coast
Palawan, PH4.2 MWh

Island Microgrid

Solar plus storage cut a resort island's diesel burn 78% in the first quarter of operation.

Installer mounting a wall home battery on a residential garage wall
NRW, Germany1,900 units

Installer Program

Private label wall batteries for a regional installer network, VDE-AR-N 4105 pre-configured.

A BESS Factory Built for Export

42,000 m2 in Suzhou running module assembly, pack lines and container integration under one roof, with 2 GWh annual capacity and our own environmental test chambers.

  • 2 GWhannual pack capacity
  • 100%packs cycled before packing
  • 72 hsystem burn-in minimum
  • 380+staff, 46 in R&D
UL 9540AIEC 62619UN38.3CEISO 9001ISO 14001
Automated battery module assembly line with robotic arms
Engineer testing a battery module in the cycling laboratory

Frequently Asked Questions

If yours is not covered, put it in the proposal form and an engineer answers within one working day.

What is a battery energy storage system?

A battery energy storage system, or BESS, stores electricity in battery cells and releases it when you need it: at peak tariff hours, during outages or when solar production drops. A complete system pairs LiFePO4 battery packs with a battery management system, an inverter or PCS and an energy management system that decides when to charge and discharge.

How does a battery energy storage system work with solar?

Solar charges the batteries whenever generation exceeds load. The EMS then discharges the stored energy in the evening, during peak tariff windows or in an outage. Grid-tied systems can also charge from the grid at off-peak rates, while off-grid systems run the site directly with a generator as backup.

Are your battery energy storage systems safe?

We build exclusively with LiFePO4 chemistry, which is thermally stable and contains no cobalt. Modules pass UL 9540A unit level testing, systems carry IEC 62619 and UN38.3, and every unit ships with multi-level BMS protection, cell level fusing and, on containerized systems, integrated fire suppression.

What are your MOQ, lead time and payment terms?

Residential units start at 50 pieces for private label programs, C&I cabinets at one unit and containers at one unit. Standard lead time is 30 to 45 days after deposit. Terms are 30% down and 70% against the pre-shipment test report, with LC accepted on container orders.

Can you private label or customize systems for our market?

Yes. We run OEM programs covering enclosure color and branding, capacity variants, inverter pairing lists and firmware profiles for your grid code. Engineering samples ship in 3 to 4 weeks and we support your certification filings with test reports and documentation.

Request a Storage Proposal

Tell us the application, capacity and market. An engineer replies within 48 hours with sizing, budget pricing and lead time.