Our own office, on our own hybrid inverter

The challenge

What was needed

Our new Noida office faced grid cuts of 10 minutes to 4 hours, rising diesel costs, a generator running below 30% of its rating, and electricity above ₹9.50 per unit with time-of-day surcharges of 15–20% between 5 pm and 10 pm.

The solution

What we built

A 30 kWp array on an angled roof feeds a hybrid grid-synchronised inverter with battery storage. Solar runs the loads first; the battery charges from the grid at night and supplies the evening peak; the generator starts automatically only if every other source fails. A night saving mode shuts the inverter down after hours to stop transformer no-load losses, and on Sundays and holidays surplus power is exported under net metering.