The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2006
Filed:
Apr. 07, 2004
Tsutomu Okusawa, Hitachi, JP;
Osamu Yokomizo, Tokai, JP;
Toshiki Kahara, Tokai, JP;
Kouichi Chino, Hitachi, JP;
Takaaki Mizukami, Hitachi, JP;
Shin Takahashi, Hitachi, JP;
Tsutomu Okusawa, Hitachi, JP;
Osamu Yokomizo, Tokai, JP;
Toshiki Kahara, Tokai, JP;
Kouichi Chino, Hitachi, JP;
Takaaki Mizukami, Hitachi, JP;
Shin Takahashi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
During a time zone where a power demand is smaller than an average value of the entire power demands of homes, an excess portion obtained by subtracting a power demand from a base power portion supplied by PEFC () is charged in a capacitor () and a lead storage battery () in advance; and during a time zone where a power demand is larger than the average value, a peak power portion exceeding this average value is discharged from the capacitor () and the lead storage battery (); thereby enabling the system to sufficiently meet daily home-use demand with requisite minimum equipment while effectively using surplus power. Thus, energy efficiency can be enhanced without wasting energy, and also cost efficiency can be improved.