| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conditioner capable of performing calculation/display of purchased power even at night while suppressing increase in standby power accompanying power supply to a sensor.SOLUTION: A power conditioner 2 comprises a control unit 24 which operates by receiving power supply from a solar cell power generation unit 1 or power system 3. When input voltage from the solar cell power generation unit 1 becomes lower than a predetermined power saving mode start threshold voltage, the control unit 24 performs power saving mode control of supplying power only to a sensor necessary for calculating purchased power and sensor for grasping a power generation situation of the solar cell power generation unit 1 and stopping supplying power to the other sensors. Thereby, wasteful power consumption is suppressed by stopping power supply to a sensor to which power supply is unnecessary, while performing calculation of purchased power and monitoring a power generation situation of the solar cell power generation unit. |
