Articles by

Paul Gipe

Abrp estimate of a one way trip to ridgecrest from bakersfield.

Bakersfield to Ridgecrest and Return Trip Summary

By

Paul Gipe

We've now made the trip a few times in both the Nissan Leaf and the Chevy Bolt. As with our trips to Kernville, actual consumption has varied for each trip and has varied with the results of four estimators: EV Trip Planner, Green Race, Chevy's Energy Assist app, and A Better RoutePlanner (ABRP).
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Bakersfield to Kernville and Return Trip Summaries

By

Paul Gipe

We've now done the trip several times and we can look at the variability in consumption relative to estimates by EV Trip Planner, Chevy's Energy Assist app, and A Better RoutePlanner (ABRP).
On shore prototype 2mw vertiwind offshore vawt.

French Offshore VAWT Developer Nénuphar Goes Bust

By

Paul Gipe

The French offshore Vertical-Axis Wind Turbine developer Nénuphar closed its doors in early 2018. Their web site is dark, though there are several Nenuphar Animations on YouTube.com.

Text of “The Troubling Budweiser Ad on Tejon Ranch” Op-Ed

By

Paul Gipe

Peddling green works. After watching Budweiser's 2019 Superbowl commercial-- the Clydesdales racing through wheat fields on Tejon Ranch, with wind turbines turning serenely in the background--I couldn't help but think, "Maybe Bud isn't so bad after all."
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COMMUNITY VOICES: The troubling Budweiser ad on Tejon Ranch

By

Paul Gipe

Peddling green works. After watching Budweiser's 2019 Superbowl commercial-- the Clydesdales racing through wheat fields on Tejon Ranch, with wind turbines turning serenely in the background--I couldn't help but think, "Maybe Bud isn't so bad after all."
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Mud, Rocks, EV Capacity, and Flexibility

By

Paul Gipe

Our family car--our only car--is a Chevy Bolt. When we want to drive somewhere, we drive the Bolt. The Bolt is a battery-electric vehicle (EV). It runs on electricity. You can't just pull up to a gas station and "fill it up."
Alcoa's paul vosburgh (left) during the raising of a 10 kw cantilevered darrieus wind turbine in western pennsylvania circa 1981.

Modern History of Vertical-Axis (Darrieus) Wind Turbines Published

By

Paul Gipe

Elsevier has published an extensive survey of attempts at building commercial Vertical-Axis Wind Turbines on its digital platform. The print version of the survey by Swedish academic Erik Möllerström will appear in the May 2019 issue of Renewable and Sustainable Energy Reviews.

California Worker Dies after Blade Falls Off Wind Machine

By

Paul Gipe

The Associated Press circulated a news item on 14 January 2019 about a field hand killed near Visalia when the blade of a "wind machine" fell off. See California orchard worker dies after 600-pound blade falls off wind machine.
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Videos of the Defunct Sheerwind-Invelox Ducted Device Still Up

By

Paul Gipe

Sheerwind-Invelox, a ducted-turbine fiasco, officially went bust in early 2018. Incredibly, there are a number of promotional videos still on line at youtube.com and on vimeo. The latter is even more surprising since it's a pay to use platform. Sheerwind-Invelox's subscription must still be in force. That won't last forever.
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Video footage of FloDesign-Ogin Antelope Valley Prototype DAWT

By

Paul Gipe

While poking around on the Internet to see if anything new had popped up on some of my favorite ducted turbine projects I came across some videos of FloDesign-Ogin that I hadn't seen before.
Screenshot from torque pro of obd measured traction battery capacity on right. left, capacity stored during last charge.

Tracking Chevy Bolt EV Battery Capacity

By

Paul Gipe

Everyone who has a cell phone knows that batteries don't last forever. For drivers of electric vehicles (EVs), or those considering one, the first question that comes to mind is, "How long will the battery last?" More specifically, how fast will the traction battery degrade and begin to affect the EV's range.
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Sierra Club Activist Loves His Chevy Volt

By

Paul Gipe

Long-time Sierra Club activist Harold Wood and his wife Janet bought a Chevy Volt about a year ago. Wood, a Visalia, California authority on the life and times of John Muir, the founder of the Sierra Club, has been active in local environmental issues for decades.