Yes Energy News and Insights

SPP’s RTO Expansion Is Now Live!

Written by Emily Merchant | Apr 01, 2026

Southwest Power Pool (SPP) RTO Expansion is now live, and Yes Energy customers can start diving into the data now! There are over 1,000 new price nodes in SPP West with both day-ahead (DA) and real-time (RT) location marginal prices (LMPs) now available.

The first DA LMPs for SPP West were published on March 31, 2026, for April 1, 2026, and the first RT LMPs were posted just after midnight on April 1, 2026.

Source: Yes Energy

As expected, DA numbers were more conservative than the RT clearances, which have been significantly higher than DA. Since SPP RTOE went live, the DA LMPs averaged $20.86 for the East BAA and $22.60 for the West BAA. RT LMPs have averaged $91.31 for the East BAA and $44.94 for the West BAA. These numbers are as of April 1, 2026, at 12:45 p.m. CT.

 

Average LMPs by BAA as of April 1, 2026, at 12:45 p.m. CT

 

BAA

Min DA LMP

Max DA LMP

Avg DA LMP

Min RT LMP

Max RT LMP

Avg RT LMP

East

-$113.71

$541.95

$20.86

-$84.48

$1,045.02

$103.66

West

$10.30

$38.21

$22.64

-$67.67

$269.05

$48.56

Source: Yes Energy

 

Average LMPs by Hour for the SPP West BAA (SWPW) as of April 1, 2026, at 12:45 p.m. CT

 

BAA

Hour

Min DA LMP

Max DA LMP

Avg DA LMP

Min RT LMP

Max RT LMP

Avg RT LMP

SPPISO-West

4/1/26 1:00

$14.90

$36.55

$26.02

Gap from ISO

Gap from ISO

Gap from ISO

SPPISO-West

4/1/26 2:00

$15.10

$20.17

$18.34

$10.67

$12.64

$11.91

SPPISO-West

4/1/26 3:00

$16.17

$20.12

$18.63

$25.08

$30.36

$28.57

SPPISO-West

4/1/26 4:00

$15.48

$19.88

$18.38

$16.88

$20.48

$19.23

SPPISO-West

4/1/26 5:00

$16.36

$20.44

$19.05

$18.19

$22.07

$20.74

SPPISO-West

4/1/26 6:00

$16.85

$20.99

$19.47

$22.65

$27.53

$25.87

SPPISO-West

4/1/26 7:00

$24.07

$30.20

$27.87

$36.58

$44.16

$41.55

SPPISO-West

4/1/26 8:00

$24.67

$30.90

$28.47

$225.25

$269.05

$253.08

SPPISO-West

4/1/26 9:00

$25.66

$35.53

$31.63

$71.61

$86.91

$81.59

SPPISO-West

4/1/26 10:00

$21.17

$38.21

$30.32

-$67.67

-$55.77

-$63.56

SPPISO-West

4/1/26 11:00

$16.15

$30.87

$23.87

$17.07

$20.20

$19.05

SPPISO-West

4/1/26 12:00

$10.67

$25.16

$18.03

$130.25

$152.77

$143.39

SPPISO-West

4/1/26 13:00

$10.52

$23.39

$17.02

$1.19

$1.40

$1.33

SPPISO-West

4/1/26 14:00

$10.50

$22.24

$16.48

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 15:00

$10.30

$22.24

$16.35

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 16:00

$10.43

$23.42

$17.09

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 17:00

$16.76

$20.65

$19.31

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 18:00

$17.35

$21.42

$19.94

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 19:00

$13.60

$27.23

$21.57

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 20:00

$22.55

$30.26

$28.30

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 21:00

$23.30

$34.34

$31.51

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 22:00

$19.31

$31.44

$28.18

Not yet available

Not yet available

Not yet available

SPPISO-West

4/1/26 23:00

$21.94

$26.74

$24.53

Not yet available

Not yet available

Not yet available

SPPISO-West

4/2/26 0:00

$21.72

$24.81

$23.03

Not yet available

Not yet available

Not yet available

Source: Yes Energy

Keep an eye out for deeper analysis from us in the future regarding the impact of SPP RTOE on prices, congestion, and other market dynamics in SPP.

Want more information about SPP RTOE data in Yes Energy?  

We compiled a list of FAQ on the market change, or you can reach out to our team.