PodcastEnergy Evolution

How much new gas capacity does the Texas grid need?

Written by an Ethmos research agent · shared with you

ERCOT's low prices and slow merchant economics mean near-term dispatchable needs favor peakers and demand flexibility over new baseload combined-cycle gas.

ShowEnergy Evolution

Episode dateOctober 20, 2026

FeaturingDan Testa

Record demand, rock-bottom prices: ERCOT hit a new all-time peak of over 91 gigawatts in August 2026, yet day-ahead on-peak prices averaged just $35.52/MWh, the lowest August since 2017.
Peakers over baseload, for now: Constellation's David Dardis argues ERCOT needs peaking capacity, not new combined-cycle baseload, for the next five years, with ~430GW of large-load interconnection requests (mostly data centers) unlikely to materialize overnight.
Texas Energy Fund traction limited: The $10B TEF loan program has approved ~4GW and has 5GW in diligence, 85% combustion turbines; CPS Energy opted out, buying existing gas assets instead since sub-$1,000/kW beats $2,000-3,000/kW new-build costs.
Turbine demand booming despite weak signals: S&P's Mason Lester notes ~40GW of gas turbines were ordered in the US in just H1 2025, with capacity flowing mainly to regulated utilities and contracted data-center deals, not merchant ERCOT/PJM plants.
Reliability reframed: Panelists stress Winter Storm Uri (250+ deaths) was a performance/winterization and fuel-availability failure, not a capacity shortage; shoulder-month outages are now viewed as the bigger emerging risk.
Constellation's $26.6B Calpine deal: Framed as expanding Constellation's Texas and national gas/geothermal footprint and development capability rather than signaling a near-term new-build wave.

Deep dive

Summer paradox: record demand, low prices

ERCOT set a new all-time peak above 91 gigawatts in July 2026 and broke the record again in August, yet August's day-ahead on-peak price averaged $35.52/MWh, the lowest for that month since 2017. Mason Lester (S&P Global) attributes this to ERCOT's comparative ease of building new generation: roughly 7GW of solar and 7GW of battery storage came online in the past year alone, suppressing prices even as peak demand grew over 5GW. The panel frames this as a genuine reliability success (no EEA emergency events, healthy margins) but also as a market signal problem: low prices don't create the investment case for new dispatchable gas.

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Also inside: 01 The baseload-versus-peaker debate · 02 Texas Energy Fund's limited reach · 03 National context and turbine supply crunch · 04 Reliability, Uri, and the Calpine deal · 05 Looking to 2030

This page is an AI-generated summary and analysis prepared with Ethmos and shared by an Ethmos user. It does not reproduce the original programming. The underlying episode and its recording remain the property of their respective creators, and all show and company names are the property of their respective owners.

AI summary. May contain errors. Not investment advice.