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SPP network service 12CP · estimate

Google, Stillwater and Muskogee County, Oklahoma

Three Google data center campuses on OG&E's system in SPP. Network service bills each month's draw at the OKGE zone's peak, so every peak the campuses sit out comes off the bill.

SPP coincident-peak charge a year at the announced load

$36,910,000

on 1000 MW drawn at all 12 peaks, at $36.91/kW-yr

At the published draw, 0 MW$0At 1000 MW$36,910,000Each peak sat out$3,075,833

What sets it: Your load at each month's coincident peak, averaged over twelve months. Each of those peaks the campus curtails through takes its share off the year.

Change these numbers

What the estimate uses

  • 1000 MW treated as draw at peak hours once built out: OG&E's service agreements ramp Google to 1 GW within five years, across three campuses. OG&E puts peak use at 1.2 GW by 2036.
  • 0 MW treated as draw at peak hours now: no public source states any MW drawing. The Stillwater campus is reported due between late 2027 and early 2028.
  • No curtailment. The rate, $36.91/kW-yr, comes from SPP point-to-point rates effective Oct 1, 2026 (PTP_RATES_10182026): OKGE zone, yearly firm, effective Oct 1, 2026: Schedule 7 $23.46, Schedule 11 zonal $5.33 and region-wide $8.12 per kW-yr. The file posts region-wide rates A and B without naming the region; this takes the lower. It is not Oklahoma Gas and Electric (OG&E)'s own tariff.

Sources

  • OG&E, Landmark Contract with Google, Apr 30, 2026: OG&E will power three new Google data centers in Muskogee and Stillwater under electric service agreements, with Google paying all connection and contracted costs.
  • KGOU, May 1, 2026: electricity use ramps to 1 GW over the next five years, with peak use of 1.2 GW by 2036.
  • OklahomaMinerals.com, Aug 19, 2026: the Stillwater campus is a $3 billion, 400-acre complex expected to be completed between late 2027 and early 2028.

Figures as published on November 7, 2026. SPP Open Access Transmission Tariff, network integration transmission service: average 12-CP.

What this is not

  1. Not a bill. Announced capacity is not metered load, and a campus rarely draws all of it at a system peak.
  2. One charge only, the SPP network service 12CP. Energy, other transmission and distribution charges are not in it.
  3. The figure assumes the campus curtails at none of the peaks. Sitting peaks out is what lowers it.

Run your actual contracted and drawn MW, year by year, in the estimator. Corrections to the public figures: contact.