The growth of the world's population has an effect to the increase demand of energy, which causes the availability of energy depleting plus if continue to rely on non-renewable energy can be a fatal consequences. When looking for sustainable electricity, people often identify solar, wind, water and biomass energy which are determined by three different parameters; environmental sustainability, social sustainability and economic sustainability. Therefore, the citizen itself needs to take part in both the household and the office building, a small simple step that can be applied for example by using energy efficient lights.