For C&I sites, critical loads & grid operators
Energy Storage Systems
Containerised LFP storage that cuts evening peak demand, carries critical loads through load-shedding and steadies solar output on the grid — sized from your own load data.
LFP containers · liquid-cooled
Why storage now
Bangladesh's grid peaks in the evening, exactly when solar stops producing and load-shedding bites hardest. A battery moves cheap energy into those hours.
Site demand over a weekday, kW
The battery discharges above a 900 kW cap in the evening peak and recharges from 00:00 to 06:00.
Use cases
The same LFP platform, configured by its control logic: shave, back up or support the grid — or stack all three.
Rooftop PV + ESS bay
Industrial
Discharge through the evening peak, hold demand under the contracted limit and pair with rooftop solar to store midday surplus.
20–30%lower peak demand
Commercial & institutional
Hospitals, data rooms, cold chains and dyeing lines ride through outages on battery instead of waiting for a genset.
< 20 msswitchover to battery
Utility & IPP
MW-scale systems at solar parks and substations for frequency response, ramp-rate control and evening firming.
MW-scalesub-second response
Battery chemistry
Lithium iron phosphate trades a little energy density for the cycle life, thermal stability and heat tolerance a Bangladeshi plant room actually needs.
| Criteria | Our standardLFPLithium iron phosphate | NMCNickel manganese cobalt | Lead-acidVRLA / flooded |
|---|---|---|---|
| Cycle life (to ~80% capacity) | 6,000–10,000 | 3,000–5,000 | 500–1,500 |
| Usable depth of discharge | 90–95% | 80–90% | ~50% |
| Round-trip efficiency | 92–95% | 90–95% | 75–85% |
| Thermal stability | High · runaway onset ~250 °C+ | Lower · onset ~150–200 °C | Stable · hydrogen off-gassing |
| Energy density | Medium | High | Low |
| Tolerance of 35–40 °C ambient | Good with active cooling | Needs tight thermal control | Life falls sharply with heat |
| Calendar life | 15–20 years | 10–15 years | 3–7 years |
| Cobalt- and nickel-free | Yes | No | Yes |
| Lifetime cost per kWh cycled | Lowest | Medium | Highest |
Typical ranges from manufacturer datasheets at 25 °C and rated C-rate. Actual cycle life depends on depth of discharge, temperature and charge rate.
Sizing guidance
Power (kW) sets how much load the battery can carry. Energy (kWh) sets for how long. Get either wrong and you pay for capacity you never use.
Energy sizing formula
Twelve months of utility interval data, or two to four weeks of 15-minute logging on the main incomer.
A peak cap in kW and a window in hours — or the critical load and ride-through time for backup.
PCS rating ≥ peak to shave × 1.1, or critical load × 1.25 where motors create inrush.
Divide the energy to deliver by usable depth of discharge, discharge efficiency and end-of-life state of health.
~15 m² per MWh containerised, fire separation distances, plinth above flood level and warranty throughput.
Worked example
| Peak to shave | 280 kW1,180 kW peak held to a 900 kW cap |
|---|---|
| Peak window | 17:00–22:005 hours above the cap |
| Energy to deliver | 1,030 kWhArea above the cap on the load profile |
| Usable depth of discharge | 90% |
| Discharge efficiency | 95% |
| End-of-life state of health | 90%Ageing allowance over the warranty |
| Nominal energy required | 1,339 kWh1,030 ÷ (0.90 × 0.95 × 0.90) |
| Selected system | 350 kW / 1.4 MWh5 × 280 kWh racks · ~21 m² containerised |
Typical payback for peak-shaving and backup systems is 5–8 years, on capex or storage-as-a-service.
LFP rack · cell-level BMS
Safety & thermal management
Heat is the enemy of every battery. Our systems are designed for 45 °C ambient, monsoon humidity and sites that flood.
LFP cells certified to IEC 62619 and UL 1973, with no oxygen release in thermal abuse.
Cell-level voltage and temperature monitoring with automatic contactor isolation.
Coolant loop holds cell temperature within a narrow spread; HVAC sized for 45 °C ambient.
Off-gas and smoke detection, aerosol suppression and deflagration venting.
Spacing per NFPA 855, UL 9540A test data, plinth above highest recorded flood level.
Monitoring integration
Storage earns its payback only if it dispatches correctly every day. Your ESS joins the same 24/7 platform that watches our solar plants.
Dhaka (Savar) · August 2025
Case study · ESS
The challengeICU and imaging loads that cannot tolerate the 8–12 second genset start gap.
The resultNo critical-load interruption since commissioning and a 22% cut in evening peak demand charges.
Free · no obligation
Share 12 months of bills or interval data and we'll return a sized ESS, a peak-shaving forecast and a payback period — in writing.
What you receive
