Jerry Patterson, commissioner of the Texas General Land Office, recently announced development details of the state’s second offshore wind farm at the Padre Island National Seashore.

The multimillion dollar agreement—the second such lease in less than a year—grants Superior Renewable Energy, Houston, rights to 39,900 acres of submerged land in the Gulf of Mexico just off the coast of Padre Island. The company plans to build a wind farm that will generate up to 500 megawatts of power.

“When completed, this will be the biggest offshore wind farm in U.S. history,” said Patterson.

The lease provides Superior Renewable Energy a four-year period for research, after which the company will being construction of enough turbines to produce a minimum of 250 megawatts of electricity. The General Land Office expects Texas schools to earn between $34 and $100 million from the lease.