By comparison, utility giant Exelon owns 33 gigawatts of power plants.

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He adds that, by comparison, state-owned hydropower utility National Hydroelectric Power Corp.

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Furthermore, factors affecting commission rates, such as the size of the order, the market in which the security trades, and whether a capital commitment on the part of the broker is required, all undermine the utility of such a comparison, which focuses exclusively on price.

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