There are three main energy sources used to power spacecrafts: batteries, solar panels and radioisotope thermoelectric generator. It depends on multiple factors the chose of one (or more) between these three. It is common that small spacecraft generates the needed power with both batteries and solar panels. For size reasons the spacecrafts can’t be launched with the solar panels already deployed so they are designed to deploy when the spacecraft is already in orbit and based on the spacecraft and solar panel array dimensions many deploying solutions have been developed. This work is focused on a particular solar panel design called nano trifold solar array and the goal is to simulate its deployment in order to early design an off-loading system.