Computational agents can motivate people to change their behaviour towards energy use in a home setting. In this paper, we investigate the design and evaluation of the iParrot, an intelligent agent that helps to persuade family members to conserve energy in their home. The iParrot was designed as a concept in the form of a video prototype with two conditions. The results from the evaluation show that people will comply with the advice from such an agent for energy conservation if the agent is friendlier.