Energy Storage Systems (ESS)
SOLAR POWER,ON DEMAND.
Advanced Lithium-Iron Phosphate (LiFePO4) and Sodium-ion battery energy storage systems (BESS). Eliminate diesel generators, enable peak shaving, and achieve true energy independence.
Energy Security
The grid is no longer reliable enough.
Solar panels generate power when the sun shines, but peak energy consumption often occurs after sunset. Without storage, you are forced to sell excess power to the DISCOM at low daytime rates, only to buy it back at premium evening tariffs.
A Battery Energy Storage System (BESS) changes this dynamic. By storing daytime solar generation in advanced, deep-cycle batteries, you can shift your energy usage to when it's most valuable.
For businesses, the value is even greater. A commercial BESS completely eliminates the need for highly polluting, expensive diesel generators (DG sets) which cost ₹25–₹35 per unit to run. Furthermore, storage enables Peak Shaving — discharging battery power during maximum demand periods to drastically lower DISCOM maximum demand charges.
Battery Technology
Why we use LiFePO4.
The era of lead-acid tubular batteries is over. Modern energy storage requires high energy density, deep discharge capabilities, and extreme thermal safety.
| Parameter | Legacy Lead-Acid | Standard Lithium-Ion (NMC) | LFP (LiFePO4) ★ |
|---|---|---|---|
| Lifespan (Cycles) | 500 – 1,000 | 2,000 – 3,000 | 6,000 – 8,000+ |
| Depth of Discharge (DoD) | 50% (Requires oversized bank) | 80% | 95% (Fully usable capacity) |
| Thermal Safety | Safe, but requires ventilation (gas) | Prone to thermal runaway (fire risk) | Extremely stable, no fire risk at high temps |
| Maintenance | High (Water top-ups required) | Zero | Zero |
| Cost per kWh (Lifecycle) | High (Due to frequent replacement) | Medium | Lowest |
Commercial & Industrial
Beyond just backup power.
Diesel Generator Replacement
Replace polluting, high-maintenance DG sets with silent, instantaneous battery backup. Saves ₹25+ per unit in diesel costs and ensures uninterrupted manufacturing processes.
Peak Demand Shaving
Industrial DISCOM bills include severe penalties for exceeding sanctioned demand. BESS automatically discharges during demand spikes, flattening your load curve and saving lakhs in demand charges.
Time-of-Day (ToD) Arbitrage
Charge the batteries from the grid during cheap off-peak hours (night), and discharge them to run your facility during expensive peak hours. Pure financial arbitrage.
Grid Stabilization
Protect sensitive CNC machines, medical equipment, and IT infrastructure from voltage fluctuations and micro-cuts with continuous online power conversion.
Residential Storage
Hybrid solar for homes.
Achieve true energy independence with a hybrid solar + battery setup.
What is a Hybrid Solar System?
A hybrid system is connected to the grid (net-metering) but also has a battery bank. During the day, solar powers the house, charges the battery, and exports excess to the grid. At night, the house runs on the battery. Only when the battery is empty does it draw from the grid.
Can I run my AC on battery?
Yes. Modern LiFePO4 battery banks paired with high-capacity hybrid inverters can comfortably handle heavy surge loads like 1.5-ton ACs, water pumps, and induction cooktops.
Can I add batteries to my existing On-Grid solar system?
Yes, through "AC Coupling". We install a separate battery inverter alongside your existing grid-tied inverter. This retrofits your standard on-grid system with full battery backup capabilities without replacing your existing equipment.
Critical infrastructure requires flawless power.
If you operate a hospital, data center, cold storage facility, or continuous manufacturing plant, a microsecond grid failure costs money. Let SOLGURU engineer a custom BESS to bulletproof your operations.
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