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Vikram Solar commissions 100-kW mini-grid in Haryana

March 28: Vikram Solar, a Tier-1 enterprise which specialises in the manufacture of photovoltaic (PV) solar modules and EPC contracts for solar power plants, has commissioned a 100-kW solar mini-grid system at Bahal, Haryana. The mini-grid will help power six residential blocks consisting of 35 households in the village which have been connected at load end with auto changeover.

The intelligent mini grid system has used state-of-the-art equipment, including crystalline solar PV modules manufactured by Vikram Solar and inverters by SMA (Sunny Boy).

One set of off-grid inverters charges a set of batteries during the day when the sun is available. These batteries create a "DC bus" inside the control room. Another set of string inverters, which are installed in the PV yard, sense this dummy grid and synchronise. The total power is made available through the dedicated grid to consumers. During night, the consumer load is fed by the off-grid inverters with batteries acting as a back-up.

Intelligent sensing options, both at the power generating source and consumer-end manage the load variation and help to keep the system balanced all the time.

To meet the scalable consumer load in the near future, the entire system can be easily expandable as the design is modular in nature.