Substack Newsletters by Jim Walker
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Replace Maine's outdated oil-fired power plant with modern batteries in grid-forming mode
NextEra seeks an exemption to Maine's new clean air regulations. The Maine DEP issued a draft order agreeing with NextEra. Batteries offer a superior technology solution for this polluting plant.
(Published on May 21, 2026)
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Trump is cancelling the clean energy transition with blinding speed and furious determination.
Six months of disinformation and Executive Orders by the Trump Administration have decimated science and renewable energy project funding. An analysis of the problem and suggested solutions.
(Published September 10, 2025)
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AI surge: Power with gas or solar?
Building new AI data centers is a geopolitical, strategic priority. But AI growth is limited by electricity supplies. Only one set of technologies can meet the net-zero, cost, and schedule goals.
(Published September 5, 2025)
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How one country is moving to 100% lower-cost renewable energy.
South Australia is on track to achieve 100% net renewable electricity generation by 2027 after reaching 75% solar and wind power generation in January. Its success is leading the way for Australia.
(Published August 15, 2025)
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The home mortgage crisis is coming
Republicans deny climate science with laws and executive orders. Insurance companies, however, deal with financial realities and are leaving climate-imperiled areas. No insurance means no mortgages.
(Published July 30 2025)
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DOE's head has an absurd view of energy
DOE Secretary Chris Wright argues in the Economist that Biden's "climate zealotry" led to "diminished life opportunities for citizens" and set back human advancement. A preposterous perspective.
(Published July 25, 2025)
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The White House defunds and falsely attacks clean energy science
Over $2.1 billion in funds cut to zero in the proposed FY 2026 budget across 14 National Laboratories and 55 programs. The White House budget vilifies DOE with MAGA framing.
(Published July 17, 2025)
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Unnatural weather disasters will not end until we transition to clean energy
Extreme weather has increased, causing deaths and billion-dollar disasters. We need to make the compelling case to transition away from fossil fuels and towards clean energy like solar & wind.
Published July 8, 2025)
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The GOP's "Big Beautiful Bill" pushes the U.S. out of the cleantech race with China
China dominates cleantech, which the U.S. invented. While we led past tech races, the Republicans are hell-bent on dismantling the U.S. cleantech industry with their just-passed "Big Beautiful Bill".
(Published July 3, 2025)
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Countering disinformation against renewable energy projects
Building renewable energy projects needs to be protected from a coordinated disinformation campaign by fossil fuel think tanks and companies. Here are some effective strategies that have worked.
(Published November 1, 2024)