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Compare large-load tariffs side by side

Pick up to three utilities. See status, the contract term, the minimum bill, collateral and exit fee each filing states, with the source. Add a size and a demand charge to see what the minimum costs in dollars.

Comparison

Arizona Public Service (APS), Extra High Load Factor (XHLF) rate
StatusPending
Applies atExisting XHLF: optional at 5,000 kW or more maximum demand and a 92% or higher load factor for at least nine of the prior 12 months. Proposed: mandatory for data centers that began service after January 2024 and similar large customers needing new generation outside APS's June 2025 resource plan.
Last reviewed2026-10-14
Contract termNot in structured terms yet; see the source
RampNot in structured terms yet; see the source
Take-or-pay (minimum bill)Not in structured terms yet; see the source
CollateralNot in structured terms yet; see the source
Exit feeNot in structured terms yet; see the source
Notice to reduce or endNot in structured terms yet; see the source
Time to powerNot in structured terms yet; see the source
SourceAPS direct testimony of Jessica Hobbick in the 2025 rate case (APS investor site, read in part; the XHLF schedule attachments were not read); news coverage for hearing and decision timing; ACC news (azcc.gov).

Shaded rows differ between the utilities. Faded values are not stated in the filings we read.

Screening information from public filings, not legal or investment advice. The utility's signed agreement controls. See all coverage · Commitment estimator · Check a site