We address investment in regulated natural gas pipelines when investment is lumpy and the demand for gas is stochastic. This is a problem that can be solved in theory as a dynamic program, but a practical solution depends on functions and parameters that are either subjective or cannot be...

Both in the German energiewende and in the European low-carbon energy system transformation, infrastructure is generally considered as a conditio sine qua non: a necessary though not sufficient condition for a low-carbon economy - and one without which energy transformation may fail. At second...