Surplus solar doesn't go to waste — it's credited on your bill. Here's exactly how the mechanism works, who it suits, and what it means for payback.
What net-metering actually is
A rooftop solar system generates the most power in the middle of the day — often more than your home or business is using at that moment. Net-metering is the arrangement that lets you export that surplus to the grid instead of wasting it. A special bi-directional meter records two things: the units you draw from the grid, and the units you send back. At billing time, you're charged on the net — hence the name.
In simple terms: the grid becomes your battery. You "deposit" surplus power by day and "withdraw" it when your panels aren't producing.
How it works, step by step
- Daytime surplus: your panels produce more than you consume, and the extra flows to the grid.
- The meter counts both ways: a net-meter logs both import and export separately.
- You're billed on the net: export is credited against import, so you only pay for what you used beyond what you generated.
- Credits carry: depending on the policy period, unused export credits can carry forward within the settlement window.
Who benefits most
Net-metering suits anyone with a grid connection and daytime roof space: homes, clinics, offices, shops and industrial sheds. The stronger your daytime consumption overlaps with generation, the faster the returns — which is why commercial and industrial rooftops, where the business runs during sunlight hours, often see the most compelling economics.
What it means for payback
Payback depends on your tariff, your consumption pattern, the system size and any subsidy you qualify for. Rather than quote a generic figure, we model it for your specific site in a free viability study — so the payback number you get is yours, not an industry average.
How PowerXP handles it for you
The paperwork is the part most people dread, and it's exactly the part we take off your plate. We've been running on-grid, net-metered projects in the Bikaner region since we net-metered the district's first rooftop in 2016. That means DISCOM coordination, net-meter installation and grid synchronisation are a standard, well-practised part of our turnkey scope — not an afterthought.
This guide is general information, not policy or financial advice. Net-metering rules and subsidy schemes change and vary by state and DISCOM — we'll confirm the current specifics for your site during your consultation.
