Normal wireless transmitters really only need very little power, and the batteries only have to be replaced every few years what is wrong with that ecologically?
5 million wireless transmitters were sold in 2006 for building automation alone. For the near future this figure can be expected to almost double annually. So in this sector alone, more than 100 million batteries will be in use in only 5 years, and consequently need replacement in due time. Another example is the automobile industry there is hardly any new vehicle in which the central interlock does not work wirelessly. For each of these vehicles the service schedule would normally foresee replacement of the battery in both ignition keys every two years. Consistent use of batteryless EnOcean technology will take a huge load off the environment within a few years.