Most people ask about the charger. The charger is rarely the interesting number. On a typical two-point DC hub, the hardware is well under half the total, and the variance between a smooth project and a painful one almost never comes from the equipment.
The line that moves most is the incoming supply. If your site already has sanctioned load close to what the hub needs, you are looking at a modest augmentation charge and a few weeks of paperwork. If it does not, you are financing a transformer, a metering panel and a stretch of cable, and the timeline stretches with it. This single variable explains most of the gap between a ₹9 lakh site and a ₹19 lakh one.
Civil work is the second surprise. A flat, drained, already-paved bay is cheap to convert. A patch of soft ground that floods in July is not. We quote both honestly, because discovering it after signature helps nobody.
The costs that stay boringly predictable are the ones we control: the software platform, the network listing, the payment rails and the support desk. Those are flat, disclosed up front, and identical for every partner regardless of how much negotiating they enjoy.
Our rule is simple. If a site cannot show a credible route to payback inside thirty-six months on conservative utilisation assumptions, we tell the partner to walk away. We have turned down more sites than we have built.