Title:
UTILITY INTERCONNECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2010/143581
Kind Code:
A1
Abstract:
A power distribution control device (50) has an electric path switching unit (51) and a determination unit (52). The electric path switching unit (51) is equipped with a first switch (SW1) inserted between a solar battery (11) and a heater unit (62) and a second switch (SW2) inserted between a commercial power system (20) and the heater unit (62). The determination unit (52) determines an electric path of the electric path switching unit (51) on the basis of whether the power generated by the solar battery (11) has surplus power or not. If there is no surplus power, the determination unit (52) turns on the second switch (SW2); otherwise, the determination unit (52) turns on the first switch (SW1). This allows, when a surplus power is generated in the solar battery (11), the surplus power to be used for driving the heater unit (62) of a water heater (60). Therefore, the surplus power of the solar battery (11) is stored into the hot water in a hot-water storage tank (61) as thermal energy. This makes it possible to effectively use the surplus power of the solar battery in a method other than selling electricity even while suppressing the increase in introduction cost as small as possible.
Inventors:
HONMA MASAYA (JP)
SHINAGAWA MIKIO (JP)
SHINAGAWA MIKIO (JP)
Application Number:
PCT/JP2010/059449
Publication Date:
December 16, 2010
Filing Date:
June 03, 2010
Export Citation:
Assignee:
PANASONIC ELEC WORKS CO LTD (JP)
HONMA MASAYA (JP)
SHINAGAWA MIKIO (JP)
HONMA MASAYA (JP)
SHINAGAWA MIKIO (JP)
International Classes:
H02J3/38; F24H1/00; H01M10/44; H02J7/35; H02M7/48
Foreign References:
| JP2006158027A | 2006-06-15 | |||
| JP2003164063A | 2003-06-06 | |||
| JP2003189477A | 2003-07-04 |
Attorney, Agent or Firm:
NISHIKAWA, Yoshikiyo et al. (JP)
Yoshikiyo Nishikawa (JP)
Yoshikiyo Nishikawa (JP)
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