Smart Power-Saving with Demand Response Scheme for Condos to be Expanded

NTT Facilities, Inc., a Japanese energy solutions provider that is also engaged in construction businesses, and Ennet, an NTT group company that produces and supplies electricity, announced on August 28, 2012, that they would extend the EnneVision scheme service to all condominiums that NTT provides with power supply service. EnneVision, a demand response scheme dedicated to condos, looks after both the supply and demand sides of electricity, the first program of its kind in Japan.

With smart meters installed at condos, the following services are provided: visualization of power consumption to motivate customers to save energy; dynamic pricing based on time zones to shift power demand from daytime peak zone to morning, evening or night zones; and sending to all customers an e-mail requiring power-saving during power scarcity and giving incentive points to be used for paying power bills to those who actually practice it.

Having tested EnneVision since July 2011 at about 3000 households of 9 condo buildings in the Tokyo metropolitan area, peak power consumption during times of power shortage was reduced in the summer of 2011 by 20 percent, as compared to the previous year. In July 2012, they also started a new service to promote carbon dioxide (CO2) reductions, in which incentive points are awarded to customers based on reductions in CO2 emissions corresponding to the amount of electricity saved from the same month the year before.