Solar Size Eligibility — Commercial (net billing states)
Sizing gates for commercial (net billing states): consumer cap, scheme ceiling, DT headroom.
States shifting C&I to net billing pay exports at a notified rate — eligibility still gates on sanctioned load and DT headroom, but sizing optimizes self-consumption. Screen the three gates here before design freezes — resizing after feasibility wastes a fee cycle.
Commercial (net billing states): States shifting C&I to net billing pay exports at a notified rate — eligibility still gates on sanctioned load and DT headroom, but sizing optimizes self-consumption. Rules change with tariff orders — treat this as a pre-application screen and confirm the current regulation on the DISCOM portal before paying fees.
Planning estimate only — interconnection, protection settings and compliance must be reviewed and signed off by a licensed electrical engineer and your utility before energisation.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Use the free Solar Size Eligibility — Commercial (net billing states) online — Sizing gates for commercial (net billing states): consumer cap, scheme ceiling, DT headroom. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Solar Size Eligibility — Commercial (net billing states)
States shifting C&I to net billing pay exports at a notified rate — eligibility still gates on sanctioned load and DT headroom, but sizing optimizes self-consumption. Screen the three gates here before design freezes — resizing after feasibility wastes a fee cycle.
How to use Solar Size Eligibility — Commercial (net billing states)
- 1Enter your sanctioned load and proposed solar size.
- 2Add the local DT capacity and existing solar on it.
- 3Read eligibility and the binding constraint.
Why use Solar Size Eligibility — Commercial (net billing states)?
- ✓The three real gates: consumer cap, scheme ceiling, DT headroom
- ✓State-correct rules with their quirks noted
- ✓Transformer-queue awareness — the constraint applicants discover too late
- ✓Pre-application screening saves fee cycles
Frequently asked questions
What limits how much rooftop solar I can install?+
Three gates, tightest wins: your sanctioned load (most states cap at 80–100% of it), the scheme's kW ceiling, and the local distribution transformer's solar quota (commonly 15–30% of its kVA, shared first-come). This tool checks all three — applicants usually know only the first.
What is DT capacity and why does it block applications?+
The neighbourhood transformer can only absorb so much backfeed before voltage and protection misbehave, so DISCOMs cap solar per DT. Early applicants on your transformer consume the quota; late ones get 'technical infeasibility'. Check (and apply) early in your DT's queue — the calculator shows the headroom math.
Can I increase my sanctioned load to install more solar?+
Yes — load enhancement is a standard DISCOM application (fees scale with kW), and it lifts the consumer-cap gate. Sequence matters: enhance first, then apply for solar, since the feasibility check reads the sanctioned load on file the day it runs.
Is exceeding the net-metering cap ever worth it?+
Behind-the-meter (no-export) capacity often escapes the caps entirely — industrial captive systems with export-blocking relays exceed net-metering limits legally in many states. The trade: surplus is curtailed, so size to daytime self-consumption. The eligibility presets here include that route.
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<iframe src="https://tooljolt.com/tools/solar-size-eligibility-commercial-net-billing" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Solar Size Eligibility — Commercial (net billing states) — ToolJolt" loading="lazy"></iframe>Related tools
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