TY - GEN
T1 - Operation method for self-consumption of surplus power considering thermal comfort in a zero energy house
AU - Tsuneoka, Yugo
AU - Maruyama, Yuka
AU - Xu, Tianshu
AU - Ichikawa, Maho
AU - Fujisawa, Junta
AU - Tanabe, Shin Ichi
AU - Hayashi, Yasuhiro
N1 - Funding Information:
This study was supported by JST, CREST (JPMJCR15K5). The authors appreciate the contributions of all survey participants.
Publisher Copyright:
© 2018 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Future declines in the selling price of surplus electric power, and the cost of PV systems and storage batteries are expected. Autonomous operations like self-consumption of surplus electric power may, therefore, become cost-effective. In addition, self-consumption may reduce excessive power backflow, which can reduce the power generation efficiency in cities. Both energy savings and improvements to thermal comfort are important to support the spread of zero energy houses (ZEH). This study aims to understand the utility of autonomous operations. Through measurements and simulations, we show that thermal comfort is improved, and peak load reduced by precooling. In addition, we show that using a heat pump water heater during the day is efficient. We proposed different combinations of PV systems and storage capacity for different regions and household composition and confirmed their economic efficiency. Finally, we confirmed the possibility that using surplus electric power can improve quality of life during low load periods.
AB - Future declines in the selling price of surplus electric power, and the cost of PV systems and storage batteries are expected. Autonomous operations like self-consumption of surplus electric power may, therefore, become cost-effective. In addition, self-consumption may reduce excessive power backflow, which can reduce the power generation efficiency in cities. Both energy savings and improvements to thermal comfort are important to support the spread of zero energy houses (ZEH). This study aims to understand the utility of autonomous operations. Through measurements and simulations, we show that thermal comfort is improved, and peak load reduced by precooling. In addition, we show that using a heat pump water heater during the day is efficient. We proposed different combinations of PV systems and storage capacity for different regions and household composition and confirmed their economic efficiency. Finally, we confirmed the possibility that using surplus electric power can improve quality of life during low load periods.
KW - Heat pump water heater(EC)
KW - PV generation self-consumption
KW - Precooling
KW - Storage battery(BT)
KW - Thermal comfort
KW - Zero energy house(ZEH)
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M3 - Conference contribution
AN - SCOPUS:85105674666
T3 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
BT - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
PB - International Society of Indoor Air Quality and Climate
T2 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
Y2 - 22 July 2018 through 27 July 2018
ER -