Solar Output Degradation Planner

WHATSON / SOLAR & BATTERY

Solar Output Degradation Planner

Track an entered first year yield under a constant annual reduction.

Starting values are editable examples. Enter your own loads, datasheet values and site assumptions.

1 Yield and duration
Solar & Battery

An annual reduction compounds from the output already reduced in the previous year.

Enter first year energy and a constant degradation rate, then inspect the year by year production. Keep the initial year unchanged on this basis.

01 / GET STARTED

How to use Solar Output Degradation Planner

  1. Enter first year output, annual output reduction and study years.
  2. Select Calculate result. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
02 / A CLEARER WORKFLOW

Why choose this tool?

The production series shows the difference between compounding a reduction and subtracting the same energy amount every year.

Before you use the result

First year output is used unchanged. The reduction compounds from year two. This is not a warranty interpretation or predicted module life; temperature and site performance remain outside the model.

03 / COMMON QUESTIONS

Questions about Solar Output Degradation Planner

Is this a panel warranty interpretation?

No. It is an entered reduction model. Warranty terms and observed site performance need separate review.

What should I check before using Solar Output Degradation Planner?

Check First year output, Annual output reduction and Study years. Use the exact units shown beside the controls and replace any example values with your own inputs.

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