C-01
Load profile analysis
Interval-data modelling across 12+ months to identify peak windows, demand charges and arbitrage opportunities.
Battery Energy Storage · LFP
Battery storage that pays for itself.
Commercial-scale lithium iron phosphate BESS — designed to flatten demand charges, capture FCAS revenue and keep critical loads online.
01 — Overview
ESQ engineers behind-the-meter and front-of-meter battery storage from 50 kWh to 20 MWh. Every BESS is sized against your load profile, network tariff and revenue stack — peak shaving, demand response, wholesale arbitrage and FCAS markets are modelled before a kilowatt-hour is procured.
Industrial peak shavingCritical backup (data centres, hospitals)Solar firmingFCAS & wholesale arbitrageOff-grid & fringe-of-gridVirtual power plants
Spec Sheet
- Capacity
- 50 kWh — 20 MWh
- Chemistry
- LFP · UL 9540A tested
- Cycle life
- 8,000+ cycles @ 80% DoD
- Round-trip
- 94% AC-AC
- Response
- <200 ms islanding
- Cooling
- Liquid-cooled containerised
- Compliance
- AS/NZS 5139, 4777.2
- Warranty
- 10 yr · 70% capacity retention
02 — Capabilities
What ESQ delivers across this practice.
C-02
Containerised BESS
Outdoor-rated, liquid-cooled enclosures from Tesla, Sungrow, BYD and Powin — pre-commissioned and crane-set on site.
C-03
Hybrid AC & DC coupling
Storage paired with new or existing PV via AC-coupled or DC-coupled topologies for maximum round-trip efficiency.
C-04
Energy management system
ESQ-OS dispatches against tariff signals, market prices and site setpoints — including grid-services revenue stacking.
C-05
FCAS & wholesale market participation
AEMO registration, telemetry, and bidding strategy for Frequency Control Ancillary Services and energy market revenue.
C-06
Backup & islanding
Seamless transfer to islanded operation with prioritised load shedding for critical infrastructure continuity.
03 — Delivery
A disciplined, engineered process.
- 01
Model
12-month interval data → revenue stack model.
- 02
Design
Sizing, topology, EMS strategy, grid application.
- 03
Deploy
Containerised delivery, civil works, HV connection.
- 04
Dispatch
EMS tuning, market registration, 24/7 monitoring.
04 — FAQs
Common technical questions.
- How is payback calculated?
- Through stacked revenue: demand-charge reduction, energy arbitrage, solar self-consumption, FCAS contingency markets and capacity payments. Most commercial sites achieve 4–7 year payback.
- Is LFP safer than NMC?
- Yes. Lithium iron phosphate has fundamentally lower thermal runaway risk and is the standard for all ESQ commercial deployments. Every cabinet passes UL 9540A large-scale fire testing.
- Can the BESS keep my site running in a blackout?
- When islanding mode is specified, yes — with sub-200ms transfer. Backup duration depends on capacity vs prioritised load.
- Do I need a fire engineer or AHJ approval?
- Most BESS installs require a fire engineer's report and DA approval. ESQ manages this end-to-end as part of the engineering scope.
Scope your project with an ESQ engineer.
Brisbane HQ, servicing all of Australia. 48-hour response on commercial briefs.