Energy Storage for Business

Cut your demand charge. Shift your peak. Keep the lights on.

Commercial and industrial energy storage from EAST, sized against your actual CEB tariff.

Your tariff just went up 18%

From 11 May 2026, every business on Rate 2 or Rate 3 metering took an 18% increase. If your contract demand is above 42 kVA, you now pay up to Rs 1,800 for every kVA of peak demand, every month, whether you used it for one minute or all day. That line on your bill is exactly what a battery attacks.

Three ways a commercial ESS earns its keep

1. Demand shaving. Your demand charge is billed on your highest peak. A battery discharges during those peaks, so the meter never sees them. Shave 50 kVA off a General Purpose supply and that is Rs 90,000 a month before a single unit of energy is saved.

2. Time of Use arbitrage. On General Purpose Rate 2 you buy at Rs 40 off-peak and pay Rs 78 in the evening peak. The battery charges cheap after 10.30pm and spends dear from 6.30pm. Every shifted unit earns the spread, every day.

3. Solar self-consumption. Daytime rooftop solar feeds your load directly at zero marginal cost against a Rs 51 day rate, and the surplus charges the battery for free. No net-metering paperwork, no export approvals. The value is in what you do not buy.

Your tariff, your numbers

  • General Purpose (shops, offices, commercial): peak Rs 78, off-peak Rs 40, demand Rs 1,800/kVA. The full double play: arbitrage plus demand shaving.
  • Industrial: energy rates are subsidised (peak Rs 39) but demand is Rs 1,650/kVA. Demand shaving leads, backup protects production.
  • Hotel: same structure as industrial, but an outage costs you guests, not just money. Sub-20-millisecond switchover means the kitchen, lifts and front desk never blink.
  • Government institutions: the widest spreads in the book (peak Rs 78 vs off-peak Rs 40, demand Rs 1,800) and the full 18% increase applied. The payback case writes itself.

The hardware

EAST liquid-cooled commercial ESS cabinets: 125 kW / 261 kWh per cabinet, parallel up to multi-megawatt. LiFePO4 chemistry, per-pack fire protection, IP66 outdoor rated, and the same 10-year EAST manufacturer warranty as every system we sell. PV-hybrid variants integrate rooftop solar directly. EAST (est. 1989, Shenzhen Exchange listed) builds the platform sold under premium badges worldwide. We supply it with the badge that answers the phone in Colombo.

How it works

  1. Send us three recent electricity bills.
  2. We run a free load study: your real demand profile, tariff category, and shave potential.
  3. You receive a fixed proposal: hardware, installation, projected monthly saving, payback timeline, and the CEB documentation pack for your utility engineer.
  4. Reserve with 30%, balance on commissioning.

Request a load study  |  Talk to an engineer on WhatsApp

Savings calculated on the PUCSL tariff effective 11 May 2026. Final figures confirmed after site survey and load analysis.