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Tax Bill Threatens the Power Grid’s New Workhorse

Following are excerpts from a newsletter published by Ed Ballard of the Wall Street Journal:


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The U.S. pioneered the combination of solar panels and batteries that makes it possible to get power from the sun when it isn’t shining. Now it risks being left behind thanks to a trade war and Republicans’ plan to withdraw clean-energy subsidies.

The tax bill passed by the House would phase out tax breaks for various green technologies, including energy storage facilities that use batteries to store power that gets released when the grid needs it. Grid batteries are also heavily exposed to tariffs because, unlike EV batteries, practically none are made in the U.S. They are made in China.

This double whammy casts a shadow over a technology that is doing the heavy lifting as U.S. power demand rises for the first time in a generation. Batteries will account for 29% of the power capacity installed this year, behind only solar, the Energy Information Administration says.

The Senate may prolong the tax credits, and Wednesday’s court ruling that voided—for now—many of Trump’s tariffs underscores the uncertainty over trade policy. For green-energy companies that typically line up customers before committing to projects, that uncertainty makes it harder to put a price on power: “We have never seen such a high demand for energy, but there’s no way we can move forward,” said David Ruiz de Andrés, chief executive of solar-plus-storage company Grenergy.

The Madrid-based company has ambitions to grow in the U.S., lured by tech companies vying to build power-hungry data centers, but currently it isn’t investing in projects besides a few already under way. Grenergy’s new $4 billion investment plan prioritizes Europe, its home market, and Latin America, where it recently signed a deal with Chile’s state-controlled copper-mining giant, Codelco, to provide round-the-clock power from vast solar and battery arrays.

Solar power, 24/7 is becoming feasible (in very sunny places like Chile, anyway) thanks to battery technology improvements from Chinese manufacturers such as BYD and CATL. Their race to squeeze more capacity into less space reduced grid batteries’ cost by 40% between 2023 and 2024, according to BloombergNEF.

Not doomed, but more expensive-


Low costs, and the sheer availability of solar panels and batteries, means U.S. growth would likely be slowed rather than halted by trade barriers and withdrawn subsidies, said BloombergNEF policy expert Ethan Zindler: “Some projects will get canceled, some will go forward and get priced higher,” he said.

There aren’t enough gas turbines, let alone nuclear plants, to meet U.S. power demand. As Zindler sees it, the question is how much potential demand is destroyed by higher prices—tech companies can build more data centers in other countries—and how much Americans pay for electricity.

Comment: As we shoot ourselves in the foot once again.

Comments

  • including energy storage facilities that use batteries to store power that gets released when the grid needs it. Grid batteries are also heavily exposed to tariffs because, unlike EV batteries, practically none are made in the U.S. They are made in China.

    "Most grid batteries use lithium-ion technology." Rube Goldberg fan that I am, I immediately thought of gravity batteries. They turn out to be more practical than I thought. A quick search turned up this piece from March:
    Constructing new dams can be controversial due to environmental, social, and biodiversity concerns.

    Gravity batteries use solid blocks and bypass these issues by eliminating the need for water or mountainous terrain. As long as there’s sufficient vertical space in tall buildings or underground shafts, they can be installed in more locations than pumped hydro.
    ...
    If gravity battery solutions can overcome their initial investment hurdles, they could help U.S. utilities and corporations maintain stable power without being held hostage by fluctuating lithium prices.
    https://interestingengineering.com/energy/gravity-batteries-for-renewable-energy
  • I'm very familiar with PG&E's Helms pumped water installation here in California, and have always admired that installation, built in the 70s and 80s. I had never heard of gravity storage, a similar concept, until now. It certainly seems like it would merit a place in different types of energy storage systems. Every bit of storage capacity helps as we gradually evolve to more and more sun and wind energy sources.

    A small chuckle- memory not always being totally accurate, I started this comment by looking up "Helm's Deep', only to be transported once again to the land of J.R.R. Tolkien. I guess that I'll have to revisit that saga one more time before I croak.
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