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Application No.: 17/297,954
`
`AMENDMENT TO THE CLAIMS
`
`The following claim listing replaces all prior listings and versions of the claims:
`
`LISTING OF CLAIMS
`
`1. (Currently Amended) A control system comprising a control unit, the control unit
`
`being configured to control a power conversion system,
`
`the power conversion system including an inverter circuit, the inverter circuit being
`
`configured to perform:
`
`a grid-connected operation in which the inverter circuit is allowed to convert DC
`
`powersupplied from a DC power supply into AC powerand output the AC powerthus
`
`converted to a powergrid; and
`
`an independent operation in which the inverter circuit is allowed to output, via a
`
`terminal, the AC power converted to a load disconnected from the powergrid,
`
`the control unit being configured to, when the inverter circuit performs the independent
`
`operation,
`
`operate in a first mode whena eurrent present timeis in a first time range,
`
`wherein in the first mode, the power conversion system is controlled such that an AC
`
`voltage is applied to the terminal, and
`
`operate in a second mode whenthe current present time is in a second time range
`
`different from the first time range, wherein in the second mode, the power conversion
`
`system is controlled to stop an operation of having the AC voltage applied to the
`
`terminal, and
`
`in the second mode, the control unit stops the inverter circuit.
`
`2. (Cancelled)
`
`3. (Previously Presented) The control system of claim 1, wherein
`
`the DC powersupply includes a storage battery and a powergeneration facility, and
`
`the control unit is configured to make the power conversion system perform a
`
`predetermined operation while the powergeneration facility is outputting DC powerin the
`
`second time range.
`
`

`

`Application No.: 17/297,954
`
`4. (Original) The control system of claim 3, wherein
`
`the predetermined operation is at least one of: an operation of having powersupplied
`
`from the power generation facility to the storage battery; an operation of having powersupplied
`
`from the power generation facility to the load; or an operation of having powersupplied from the
`
`powergeneration facility to the load and having surpluselectricity of the power generation
`
`facility supplied to the storage battery.
`
`5. (Previously Presented) The control system of claim 1, further comprising a switching
`
`unit configured to switch the control unit between twostates that are a first state and a second
`
`state,
`
`the control unit being configured to operate, in the first state, in the first mode inthefirst
`
`time range and in the second modein the secondtime range,
`
`the control unit being configured to operate, in the secondstate, only in the first mode,
`
`out of the first mode and the second mode.
`
`6. (Previously Presented) The control system of claim 1, wherein
`
`at least one ofthefirst time range or the second time rangeis set on a predetermined
`
`period basis.
`
`7. (Previously Presented) The control system of claim 1, further comprising a
`
`presentation unit configured to present information indicating whether the control unit is
`
`operating in the first mode or the second mode.
`
`8. (Original) The control system of claim 7, wherein the DC powersupply includes a
`
`storage battery, and
`
`the presentation unit is configured to present the information in accordance with an end
`
`time of the first time range and a remaining capacity of the storage battery.
`
`9. (Previously Presented) The control system of claim 1, further comprising at least one
`
`of a guidance unit or a changeunit,
`
`the guidance unit being configured to prompta user to changeat least one ofthefirst
`
`

`

`Application No.: 17/297,954
`
`time range or the second time range according to weather information,
`
`the change unit being configured to changeat least one of the first time range or the
`
`second time range according to the weather information.
`
`10. (Previously Presented) The control system of claim 1, further comprising a
`
`determination unit configured to determinethefirst time range and the second time range
`
`according to a relationship between power consumedby the load and a timerange.
`
`11. (Previously Presented) A power system comprising:
`
`the control system of claim 1; and
`
`the power conversion system.
`
`12. (Currently Amended) A control method for controlling a power conversion system,
`
`the power conversion system including an inverter circuit, the inverter circuit being configured to
`
`perform:
`
`a grid-connected operation in which the invertercircuit 1s allowed to convert DC power
`
`supplied from a DC powersupply into AC powerand output the AC power thus converted to a
`
`powergrid; and
`
`an independent operation in which the inverter circuit is allowed to output, via a terminal,
`
`the AC power converted to a load disconnected from the powergrid,
`
`the control method comprising, when the inverter circuit performs the independent
`
`operation,
`
`operating in a first mode when a eurrent present timeis in a first time range, wherein in
`
`the first mode, the power conversion system is controlled such that an AC voltage is applied to
`
`the terminal, and
`
`operating in a second mode whenthe eurrent present time is in a second time range
`
`different from thefirst time range, wherein in the second mode, the power conversion system is
`
`controlled to stop an operation of having the AC voltage applied to the terminal,
`
`in the second mode, the inverter circuit stops.
`
`

`

`Application No.: 17/297,954
`
`13. (Previously Presented) A non-transitory computer-readable storage medium storing a
`
`computer program designed to cause a computer system to perform the control method of claim
`
`12.
`
`

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