power plan, help deciding if this bill credit is worth it

Base charge: 0

Energy Charge: 13.372 per kWh

Monthly Bill Credit: $50 per billing cycle of at least 1000 kWh

not counting tdu an delivery

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i use ~500 kwh in nonsummer months and (maybe up to 1500 in hot summer months).

is this worth it over their other plan which is

Base Charge: $0

Energy Charge: 7.474¢ per kWh Monthly

TDU Delivery Charges ($): ** Per kWh (¢) TDU Charges: **

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both are fixed 12 months