Senate rejects amendment forcing data centers to pay grid costs; advances solar‑inspection bill

The Arizona Senate spent more than an hour debating a floor amendment to SB 1419, a bill about solar‑energy device regulation, before rejecting the amendment and moving the bill forward.

Senator Sundarachian introduced a floor amendment that would have required large electrical customers — such as data centers — to bear the costs of additional generation, transmission and other grid upgrades associated with their loads so that residential ratepayers would not face higher utility bills. "We need our data centers to pay their fair share," the sponsor said in committee and urged a yes vote on her amendment. Supporters framed the change as a consumer‑protection step to prevent rate increases driven by large industrial loads.

Opponents in the Committee of the Whole described the amendment as outside the bill’s core purpose and raised concerns about whether it was germane. The majority whip urged members to oppose the amendment, calling it "hostile" and inconsistent with the bill’s intent. After a standing division count Senators recorded 12 ayes and 15 nays; the Sundarachian floor amendment failed.

With that amendment defeated, sponsors and committee leaders moved other, narrower floor amendments and technical changes that the Senate adopted. After the Committee of the Whole reported SB 1419 as amended, the full Senate later took third reading and passed the bill, with recorded explanations of vote entered by several members who said the committee changes addressed some concerns even if not all stakeholders were satisfied.

What happens next: The Senate clerk was instructed to transmit SB 1419 to the Arizona House for consideration. The tally on the amendment and the sponsor’s statements were entered into the record, and some senators said they would continue to press utility and rate‑payer concerns in future bills.