Qualified energy producers and other businesses in the renewable energy industry can be granted an exemption from industrial income, municipal and Commonwealth taxes on real and personal property, license fees, excise, and other municipal taxes, among other benefits. The tax exemption is 90% for industrial development income, 90% for municipal and Commonwealth taxes, and 60% for license fees, excise tax, and other municipal taxes. The exemption period is 10 years for high industrial development zones,15 years for intermediate industrial development zones, and 20 years for low industrial development zones. For Vieques and Culebra, the exemption period is 25 years. Businesses may also apply for an extra 10 years of exemption with altered conditional benefits.