The Iowa Supreme Court today voted in favor of a significant wind energy expansion by MidAmerican Energy.

The 5-0 ruling upheld a decision made by the Iowa Utilities Board in 2009, which allowed MidAmerican to raise customer’s rates to cover the cost of an expansion in wind energy production.

The court said the decision was based on “substantial evidence” that the expansion would reduce emissions, diversify fuel supply, promote economic development, and maintain reasonable prices for utility customers.

NextEra Energy Resources, who opposed the ruling, argued that MidAmerican did not demonstrate a need for the expansion, and didn’t sufficiently consider the alternatives.

For more information, read the full article at the Des Moines Register.