Net present value (NPV) represents the difference between the present value of cash inflows and outflows over a set time period. Knowing how to calculate net present value can be useful when choosing ...

The “Dunkelflaute” is a bogeyman for the energy sector, but a new tool from the German-Norwegian storage provider can now determine exactly which storage capacities and how many reserve power plants ...

For the first time an online calculator determining current sales values is available, targeting owners looking to sell their photovoltaic installations. This free of charge calculator is applicable ...

Image source: Flickr user Ken Funakoshi. A perpetual annuity, also called a perpetuity, promises to pay a certain amount of money to its owner forever. A classic example would be that of a perpetual ...

Chile’s National Center for Innovation and Development of Sustainable Energy (CIEDs) has launched a solar calculator to help consumers estimate potential cost savings from installing a solar PV system ...