"Home Energy-conservation Support Program" has been developed on the Website in this study. This Program has two
purposes. From a short-term standpoint, one is to promote the residential energy-saving behavior by activating
communication in a family. Another is, from a long-term standpoint, to get the information about energy consumption of the
Program members, clarify the relations between the energy consumption and the family attributes, and apply them to the
system design and the residential design. This paper shows the evaluation results of the Program performance through its
implementation for three years.
As for the energy-saving effect, the total energy consumption of the members was observed to be decreasing, which
suggests that the Program has prompted the energy-saving behavior of the members. By using the energy consumption data,
the author has estimated the energy consumption characteristics against the type of house, the size and age of family, and also
demonstrated the possibility of estimating separately the age effect and cohort effect of the residential energy consumption.
Energy consumption structure of Japanese professional baseball games was analyzed. Multiple linear regression analyses of
electricity consumption in stadiums indicated that the length of games, air-conditioning load (calculated from the
temperature), starting time of games (day or night) and humidity affected the electricity consumption in most stadiums, and
also the number of spectators and atmospheric pressure affected in some stadiums. Total electricity consumption was
decomposed to each factors based on the result of the analyses. Nippon Professional Baseball had started "Green Baseball
Project" in 2008, in which each player himself and team tries to save electricity through speedy play and to shorten the game
length. Total electricity consumption in 2008 was reduced by 2.58% compared to 2007 and energy consumption by gas was
also reduced, although the reduction ratio in the game length was no more than 1.4%. Furthermore, the degree in contribution
of game length to total consumption of electricity increased in 2008. This cannot be explained by the reduction of game
length, and these results suggested that some factors other than the game length also affected to the reduction of energy
consumption such as the increasing awareness of players, spectators and stadium officers about energy saving, considering
restricted contribution of game length to total electricity consumption.
This paper focuses on the cost analysis of ethanol production from rice straw by hydrothermal pretreatment with phosphoric
acid. In this case, there are economical trade-off relations such as the costs of phosphoric acid and enzyme. The purpose of
this study is to clarify the economical trade-off relations and to find more economically advantageous conditions over
hydrothermal pretreatment method. Under the conditions assumed here, recovery and reuse of phosphoric acid is important
for the cost reduction. An increase in amount of sugar yield of 3% or more is required to obtain an advantage to use
phosphoric acid during hydrothermal process.