How to Choose the Right DG Set Capacity for Your Home in Guwahati
Homes in Guwahati run on a very particular load pattern — a couple of air conditioners in summer, a water pump, a fridge that must never stop, and lights and Wi-Fi that keep the house liveable during an outage. Sizing a DG set for that mix is not guesswork; it is simple arithmetic.
Step 1: list what must stay on
Walk through the house and write down what genuinely needs backup. A typical three-bedroom Guwahati home looks like this:
- Lights and fans across the house — 600–900 W
- Refrigerator — 300 W running
- Wi-Fi, TV, laptops, chargers — 300 W
- Water pump (1 HP) — 750 W running
- One or two 1.5-ton air conditioners — 1,500 W each
That comes to roughly 4.5–5 kW of running load if both ACs are on.
Step 2: allow for starting current in Assam's summer
Air conditioners, pumps and fridges draw three to six times their running current for a few seconds at start-up. If you size exactly to the running load, the generator will trip every time the pump kicks in. Add about 30% headroom — so a 5 kW running load points to roughly a 7.5–10 kVA DG set.
Step 3: match the capacity to a real model
For most independent houses in Guwahati we recommend:
- 5 kVA — lights, fans, fridge, Wi-Fi and one small AC or a pump, not both at once.
- 10 kVA — the sweet spot for a family home with two ACs, a pump and full lighting.
- 15–25 kVA — large bungalows, homes with lifts, or shared apartment blocks.
Step 4: think about noise and placement
Residential plots in Guwahati are close together, so a silent acoustic canopy is not optional. All Greaves home sets we supply are CPCB IV+ compliant with sound-attenuated enclosures, and we position the exhaust away from bedrooms and neighbouring windows.
Step 5: don't over-size
A generator running at under 30% of its rating for long periods suffers wet stacking — unburnt fuel fouling the exhaust. Buying a 25 kVA set for a 5 kW home costs more upfront, burns more diesel, and wears out faster. Right-sizing saves money twice.
Talk to Mecwel Engineers in Guwahati
We've been Assam's authorized Greaves Cotton dealer since 1991. Send us your requirement on WhatsApp and we'll reply with the right DG set, price and service plan — or call +91 97060-11988.