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| Parameter | |
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| | The large consumer signs n different electricity contracts with the electricity generator |
| The electricity consumption of the large consumer is divided into T periods |
| The electricity price of the nth contract signed between the large consumer and the electricity generator |
| The price of t stage in electricity pool |
| The electricity demand of the large consumer at time t |
| The electricity procurement volume of the large consumer from the nth contract in phase t |
| The electricity procured by the large consumer in the electricity pool in t stage |
| 0−1 variable: If contract L is used when purchasing electricity in phase t,then the value is one; otherwise, the value is zero |
| The target uncertainty level of the electricity generator |
| The target uncertainty level of the large consumer |
| The large consumer’s electricity procurement cost |
| The electricity revenue of the electricity generator |
| The mean value of the large consumer’s predicted procurement cost |
| The average forecast revenue of the electricity generator |
| The large consumer’s expected cost |
| The expected revenue of the electricity generator |
| The maintenance cost of the generator to resume operation in case of disruption |
| The economic losses of the large consumer in case of disruption |
| The reliability cost coefficient of the electricity generator |
| Decision variables | |
| The reliability level of the electricity generator |
| The subsidy proportion of the large consumer to the electricity generator |
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