This "E-Co Navi" can express the comparison of the consumption with the target figures or the preceding year's consumption . In this way, this makes it easier for everyone to carry out energy saving activities, and thereby contributes to total energy conservation.

Since November 1998, the "E-Co Navi" were installed at 800 houses every year across the country.
In 2001Fy, 4,600 are installed . Monitoring by ECCJ has been continuing up to the present.