It is of interest to lower the energy losses from districtheating pipes both for economic and environmentalreasons. This paper evaluates a hybrid insulationsolution where Vacuum Insulation Panels (VIP) are putaround the supply pipe in a district heating pipe and therest of the casing pipe is filled with polyurethane foam(PUR).The apparatus for the “guarded hot pipe” method wasused to estimate the thermal properties of single pipes,which have been used as input in finite element modelsfor simulation of twin pipes in field. The simulationsindicate a total reduction in the energy loss between18% and 32% compared to pipes of the same size withpure PUR insulation. Furthermore, the losses from thesupply pipe decrease by up to 56%.To achieve the low energy losses, the vacuum in thepanels has to be preserved over the life span of theVIP. In field measurements, a hybrid pipe prototypewas connected to the district heating grid in Varberg(southwest Sweden). After almost two years, the pipeis still working without any detectable deterioration ofthe insulation performance. The panels have alsobeen tested at high temperatures in laboratory withpromising results.