MI SB1317

Increases the cap on retail customer choice for alternative electric suppliers from 10% to 25% of an electric utility's average weather-adjusted retail sales.

Establishes procedures for allocating annual energy allotments to customers switching to alternative suppliers on a calendar year basis, with priority given to existing customers and those seeking to expand usage.

Provides exemptions allowing iron ore mining and processing facilities in Michigan's Upper Peninsula to purchase all electricity from alternative suppliers regardless of the 25% cap.

Requires alternative electric suppliers to maintain offices in Michigan, demonstrate financial and technical capability, maintain records, collect applicable taxes, and comply with a code of conduct established by the Public Service Commission.

Protects customers from unauthorized supplier switching or billing and establishes procedures for returning to standard utility tariff service after receiving service from alternative suppliers.