Investment analysis calculator

Our investment analysis calculator calculates the repayment time when investing in an LED installation versus an installation with conventional light sources.
The repayment time is calculated by dividing the difference in the operational costs by the difference in investments. This can be understood as the number of years you need to “earn back” your initial investment. The calculator also provides energy savings figures (in percentage) by choosing the LED alternative.

All of the fields in the calculator must be completed as precisely as possible. This applies to, among other things, the number of luminaires and the price per luminaire that will be installed, as well as the installation costs and energy use for new and existing light luminaires. Also the annual operating time for the installation and light source lifetimes are important.




Please put in information in all cells for the calculator to work correctly.

Description Conventional LED Delta Unit
Number of light fixtures Fixtures
Fixture price including light source Amount
Installation costs per fixture Amount
Sum, investments Amount
Energy consumption per fixture Watt
Energy price Amount per kWh
Operating hours per year hours
Light source life time hours
Lamp exchange costs, including light source and work Amount
Sum, annual operation costs Amount
Payback time Years
Energy savings %

 The energy cost per kWh onboard vessels depend on various factors like fuel price, fuel consumption, type of fuel, generator efficiency etc, and will also vary across markets. For practical purposes, we recommend using EUR 0,20 – 0,30 as a reference price.