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What capacitance is required to store an...

What capacitance is required to store an energy of 100 kWh at a potential difference of `10^(4) V` ?

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Here, `C = ?, U = 100 kWh = 100xx10^(3)xx3600 J = 3.6xx10^(8) `J
`V = 10^(4)` volt
From `U = (1)/(2) CV^(2)`
`C = (2U)/(V^(2)) = (2xx3.6xx10^(8))/((10^(4))^(2)) = 7.2 F`
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