Skip to Content

Battery Energy Storage

Store energy when EVN tariffs are lowest. Deploy it during peak hours when rates are highest. BESS lets your facility consume expensive peak-hour power at cheap off-peak rates — with zero disruption to operations.

Store Energy.
Deploy on Demand.

A BESS charges its battery banks during off-peak hours (00:00–06:00 daily) and discharges when grid electricity is most expensive — Monday to Saturday, 17:30–22:30. On Sundays there is no peak window, so the battery holds its charge. Every kWh shifted from peak to off-peak reduces your effective electricity cost automatically, every day, with no change to how your facility operates.

ATW Skylink deploys LFP (Lithium Iron Phosphate) battery technology — the industry standard for C&I applications: long cycle life, thermal stability, and low maintenance overhead.

Battery Energy Storage System

How Your BESS Works

3 Time-of-Use Zones. One Smart Battery.

Your BESS responds to time-of-use pricing — charging when electricity is cheapest (00:00–06:00), holding during normal hours, and discharging exactly when the grid is most expensive (Mon–Sat, 17:30–22:30). Sundays have no peak window.

PEAK 17:30 22:30 Peak Rate Standard Hour Off-Peak Cost Level 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00 24:00 BESS CHARGES BESS DISCHARGES Peak Savings
Without BESS (grid price)
With BESS (effective cost)
Peak hours

The Two Jobs BESS Does Every Day


Peak Shaving

BESS charges overnight during the off-peak window (00:00–06:00), then discharges during the peak period (17:30–22:30, Monday–Saturday) when grid electricity is at its most expensive. On Sundays there is no peak window — the battery stays on standby. Your facility’s consumption stays the same; your electricity cost drops because you draw from stored energy instead of the costly grid peak.


Backup Power

When the grid trips, BESS switches to battery power in milliseconds — before sensitive equipment notices. Manufacturing lines, cold chains, and data-critical operations keep running with no restarts and no spoilage. Continuous protection from the same system already cutting your peak costs.


Why Industrial Operators Choose BESS

Immediate reduction in electricity bill
LFP chemistry: 6,000+ cycle life, no thermal runaway risk
Scalable capacity — from 500 kWh to multi-MWh installations
Fully integrated with your solar PV system via ATW's BMS platform
Real-time monitoring and remote diagnostics via cloud dashboard
Compliant with Vietnamese grid interconnection standards
Optional performance guarantee with bankable financial documentation
Modular design — capacity can be expanded as energy needs grow

Calculate Your BESS Savings

Share your electricity bill and facility load profile — our engineers will model your potential savings.

Request a Free Analysis