The PUC’s proposed market redesign increases costs and reduces reliability. Market interventions will cost Texans close to $8 billion a year by 2026.

Problems with generation adequacy and reliability in the Texas grid were once rare occurrences. That does not appear to be the case anymore. For two straight years the grid has struggled to keep the lights on, despite promises that “everything that needed to be done was done to fix the power grid in Texas” after the 2021 blackouts. The foundation for the reduction of reliability in the Electric Reliability Council of Texas (ERCOT) is the politicization of the Texas electricity market—particularly the push for renewable energy—and the resulting collapse of competition in the market.

The Texas electricity market is being overrun by renewable energy generation driven by the over-subsidization of wind and solar development. Since 2018, 79.3% of all new generation has been intermittent renewable energy. The lack of diversity that has resulted from this over-reliance on renewables has come at a great cost to Texans most specifically in the form of less reliability. From 2006 through the end of 2021 renewable energy generators in Texas will have benefitted to the tune of $24.2 billion in taxpayer subsidies.

An effort is now being made in the Texas Capitol to exchange Texas’ “energy-only” market for a “capacity” market in which generators get paid just for existing—then get paid again when they sell electricity. This double dipping would increase the cost of electricity for Texas consumers somewhere between $4 billion to $8 billion per year. If successful, Texans will have an electricity grid that looks much like those of California and New York; no more reliable, but a lot more expensive.

Because of heavy subsidies flowing to wind and solar generation, the reliability of the Texas electric grid has been threatened. Commissioners at the Public Utility Commission of Texas responded to the reliability challenges by instituting a $3.6 billion electricity “tax” on Texans. Unlike most taxes though, the money from the ORDC goes straight to generators as a subsidy. The price increase was done through an administrative price adder known as the Operating Reserve Demand Curve (ORDC), which artificially increases wholesale electricity prices under conditions of scarcity. The ORDC has been in place for several years but was increased about $2 billion by the PUC in 2019. The PUC has also increased the ORDC in 2020. Thus, the cost of the ORDC could increase significantly this year, depending on market conditions.

Renewable energy generators are driving other, more reliable sources of energy out of the Texas electricity market. The reason is straightforward. Renewable generators often undercut the prices of their competitors by selling electricity below their costs, and even their marginal costs, to gain market share.

In many ways, this behavior matches one of the classic “anticompetitive” behaviors in antitrust theory known as predatory pricing.

Lower natural gas prices in 2019 led to declines in wholesale electricity prices in most areas of the country. This was not the case in Texas, where day-ahead, around-the-clock wholesale electricity prices averaged $38 per megawatt-hour (MWh), up 13% from their 2018 average.

The root cause of this cost increase were the massive distortions in Texas’ wholesale electricity market caused by renewable energy subsidies.

Federal, state and local subsidies for renewable energy are undermining the reliability of the Texas electricity market. Since 2006, wind and solar generators in Texas have received about $19.4 billion from taxpayers and consumers. The distortions caused by the rapid growth of wind and solar generation are significantly decreasing the reliability of the electricity grid.