ChatGPT & DALL-E generated panoramic image of a heavy, white fluid glugging out of a pipe

Dense Fluid Pumped Hydro Doesn’t Make Any Sense & A Mea Culpa

A recent online discussion on gravity storage brought the usual suspects out of the woodwork. Proponents of heavy fluid pumped hydro reared their sludgy heads this time. Follow along for why this is a silly idea, as all gravity storage options that aren’t pushing water uphill turn out to be. … [continued]

Slide from Michael Barnard's seminar on grid storage through the Indian Smart Grid Forum

Balancing Renewables Requires Big Grid Storage, But What Kinds? (India Seminar Slides & Transcript)

Under the auspices of the India Smart Grid Forum, the think tank founded as an umbrella organization over India’s 28 state utilities to provide thought leadership, share leading practices, and bring international insights to India, I’m delivering bi-weekly webinars framed by the Short List of Climate Actions That Will Work. With the … [continued]

ChapGPT & DALL-E generated panoramic image of an electric truck covered in circuitry charging at a truck stop

Dirt Cheap Batteries Enable Megawatt-Scale Charging Without Big Grid Upgrades Right Away

Battery prices have continued to plummet, frankly faster than even battery optimists such as myself dreamed of. We’re seeing commercial, scaled, price points that we didn’t expect to see until 2030 or later. That has big implications for electric trucking. In 2022, a kilowatthour of battery capacity cost US$159. In … [continued]

ChatGPT & DALL-E generated panoramic image of a hot air balloon tethered to the ground by an electricity cable covered in sparks

Compressed Gas For Electricity Storage Claims Are Mostly Hot Air

Three years ago, I published my projection of grid storage demand and solutions through 2060. At the time, various compressed gas electricity storage solutions such as compressed air, liquid air, and liquid carbon dioxide were in my also-ran technologies. My review of the literature over the preceding years had made … [continued]

Why Should We Pay Extra for Nuclear Power?

There were a couple of interesting developments in June in regards to electric power. One was that NextEra Energy issued its Investor Conference Report 2022 to its stockholders. Another was a paper from Stanford University, “Low-cost solutions to global warming, air pollution, and energy insecurity for 145 countries,” (LCS study) by … [continued]