The ETA achieves these miracles by committing New Mexico to stringent renewable-energy and clean-energy standards pushed aggressively by special interests. Such objectives are far beyond the traditional expertise of public utility regulation.
Deep decarbonization to achieve the temperature-change limits (holding warming to 1.5° C above pre-industrial limits) advocated by climate activists requires collective action among the industrialized countries of the world. One country, even as large as the United States, let alone a single state like New Mexico, cannot achieve that goal by itself. Thus, the ETA won’t have any detectable effect on climate change. It forces New Mexicans to spend their money on electricity generation projects whose climate change benefits are next to zero. The ETA is not a serious policy to reduce global temperature. Instead, it furthers the symbolic goals of environmentalists and sends the bill to electricity consumers, probably with regressive results.
Subsidies: A particularly troubling aspect of the ETA is its subsidies for renewable energy. The ETA, for example, requires generation technologies to be 50% renewable by 2030, 80% by 2040, and 100% carbon-free by midcentury. To achieve the last goal may require the use of expensive technologies like carbon capture and advanced nuclear power plants that would likely require subsidies to shelter consumers from their actual costs.