Arizona officials rule utilities must be carbon-free by 2050

PHOENIX (AP) — Arizona utility regulators approved a plan for utilities to receive all their energy from carbon-free sources by 2050.

The plan approved Thursday in a split vote by the Arizona Corporation Commissioners calls for electric utilities to receive half their power from renewable energies such as solar and wind in 2035.

In 2050, they would need to supply all customer electricity with renewables, carbon-free nuclear or energy-efficient methods such as subsidizing low-watt light bulbs or attic insulation, the Arizona Republic reported.

The commissioners approved the measure on a 3-2 vote. Republican chairman Robert Burns, Democrat Sandra Kennedy and Republican Boyd Dunn voted in favor of the new regulations. Republicans Justin Olson and Lea Marquez Peterson were opposed to the measure.

The plan also has interim requirements that electric utilities must cut carbon emissions in half by 2032 and by 75% by 2040.

The carbon reductions figures would be based on how much carbon a utility’s power plants emitted on average from 2016-18, the Republic reported.