Solar inverter clipping explorer

Explore how DC/AC ratio, array shape, and day profile change solar inverter clipping. Use it to see when clipping starts, how much energy it leaves on the roof, and why east-west arrays can tolerate a different ratio than a sharp south-facing peak.

Model inputs

Results update instantly. Use the button only if you want a shareable URL.

Why this page is worth using

Many clipping pages stop at a ratio like 1.2 or 1.3. That hides the part people actually need to reason about: the curve shape. A broad east-west hump behaves differently from a sharp south-facing noon spike, even with the same nameplate ratio.

  • Targets search intent around solar inverter clipping, DC/AC ratio, and oversizing tradeoffs.
  • Shows the clipping window in solar time instead of only returning one abstract percentage.
  • Includes a rough annual loss estimate so a scary-looking clear-day plateau can be kept in perspective.

Default example: 8.2 kW DC on a 6.0 kW inverter gives a 1.367 ratio, with about 1.85% clipped energy on the selected day.

How to interpret clipping

  • Clear-day clipping is normal in many well-sized systems. The question is not whether it happens, but whether the lost energy is worth the inverter cost you save.
  • East-west or low-tilt arrays often flatten the peak enough that a higher DC/AC ratio is still sensible.
  • If the annual loss estimate climbs into the hard-clipping band, the economics deserve a second look.

What this model does and does not do

This is a planning model, not a full PV simulation. It does not use your exact weather file, azimuth, shading, module IV curve, or AC export limit. It is meant to make clipping behavior easier to reason about before you reach for more detailed tools.

Read the launch note for this solar tool.