OK SB1510

Requires wind energy facility owners to remove all equipment and restore property to pre-construction condition upon abandonment or end of useful life, with decommissioning completed within 12 months

Mandates financial security for wind energy facilities be in the form of surety bonds from federally-certified insurers, eliminating previous options such as parent guarantees, cash, letters of credit, or certificates of deposit

Requires solar power facility financial assurance to also be in the form of surety bonds from federally-certified insurers, replacing previous options including parent company guarantees with investment-grade credit ratings

Sets financial security amounts at 125% of estimated decommissioning costs minus salvage value, with estimates prepared by Oklahoma-licensed professional engineers

Imposes administrative penalties up to $1,500 per day for wind facility owners who fail to submit required financial security information to the Corporation Commission