Energy efficiency is a key Green Focal Area for our Green Products. Our analysis has shown that about 97% of the energy consumed during the use phase of our products is attributable to Lighting products. The remaining 3% is split over Consumer Lifestyle and Healthcare. Therefore, we focus the majority of our efforts on increasing the energy efficiency of our Lighting products which allows us to have the largest impact.
The annual energy consumption per product category is calculated by multiplying the power consumption of a product by the average annual operating hours and the annual pieces sold and then dividing the light output (lumens) by the energy consumed (watts). The average energy efficiency of our total product portfolio improved some 2% in 2013 (19% compared to 2009).
As well as providing energy-efficient lighting solutions, we are also offering lighting solutions powered by renewable sources such as the sun. For over one billion people around the world who have no access to electricity, our solar-powered LED products have the potential to effectively extend the day, thereby enhancing life at a social and economic level, in ways that have never been possible before. In 2013 LED sales continued to advance well, but demand for conventional lighting remained fairly stable due to the challenging economic environment. Since the number of traditional lamps sold is significantly higher than LEDs, the energy efficiency improvement of the total Lighting portfolio in 2013 was limited. As the traditional incandescent lamp will be banned in more countries, we expect the energy efficiency improvement to advance in the coming years. Our target for 2015 is a 50% improvement compared to the 2009 baseline. In this target setting, assumptions were made on the speed of the regulatory developments in this area, which stayed behind expectations. Therefore, in 2015 the target of 50% improvement will probably not yet be achieved.
We continue engage in dialogs with key stakeholders from both the private and public sectors, e.g. customers, business partners, non-governmental organizations (NGOs), and national and local governments. Through this process we aim to create awareness of the life-enhancing benefits of our intelligent, energy-efficient solutions, and power up the momentum for change.