| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the charge of power supply service from/to a power generator to/from a commercial system power source being unable to be calculated, even though the power thereof can be measured. SOLUTION: This system connection type reverse conversion device, including an inverter circuit converting DC power inputted from a DC power supply into AC power and outputting the AC power to the commercial system power source and loads of power consumers, in which the DC power supply is connected to an input terminal, a commercial system power source and the loads of power consumers are connected with an output terminal, is provided with an electrical energy measuring means for measuring at least two of the electrical energy amounts of AC power converted from direct current to alternating current, the electrical energy amount outputted to the commercial system power source, and the electrical energy amount outputted to the loads of power consumers, a storage means for storing data of the charge of power supply service, a system control means for calculating the charge of power supply service corresponding to each electrical energy based on each electric energy measured by the electrical energy measuring means and the stored data of the charge of power supply service. |
