Investigation of energy sources in an early dynamo in Vesta has been carried out using high pressure-temperature experimental studies. Electrical resistivity of Fe‐10wt%Ni was measured at 2-5 GPa up to 2082 K in the liquid state and compared to previous results of pure Fe and pure Ni. Thermal conductivity was calculated from electrical resistivity to determine adiabatic core heat flux. The results are applied to determine whether thermal convection could be responsible for the putative dynamo in early Vesta’s core. An adiabatic core heat flux of ~300 MW at the top of Vesta’s core is estimated from this study and compared to a range of estimates of heat flux through the CMB of 1.5-78 GW. It is concluded that thermal convection would have occurred, playing an important role as an energy source of dynamo action that generated a magnetic field for tens of millions of years in Vesta’s early history
