Variant menu: Calculations > Financial analysis > Parameters

All entries listed here can be pre-defined in the Options. These are then used for new projects. Using the Reset to Defaults button, these settings are then reloaded.

General

The lifespan is the time span defined by the manufacturer, over which the system is foreseeably operational. For solar installations, a lifespan of 10 - 20 years is estimated.

The interest on capital is the basic interest rate for determining the capital value and the variables derived therefrom (pay-back time and initial costs of solar).

The reinvestment return is used under the so-called reinvestment premise. Investment surpluses (pos. cash flows) earn interest and are compounded with this rate.

Savings are determined with the specific fuel costs.

To determine the operating costs, the specific power costs are required.

Inflation rate

With the rate of price increase for energy usage (= combustible fuel or electricity) and the operating costs, the savings and capital value are calculated.