Category Archives: Energy and Power

Wind turbine blades fly off in NYC high winds

“Blades from a massive wind turbine crumpled to the ground Monday, smashing a car flat and damaging another piece of infrastructure, authorities said.” click here

Wind power creates global warming…

Lee Miller, David Keith. Climatic Impacts of Wind Power. Joule, 2018, Volume 2, Issue 12, P2618-2632.

We find that generating today’s US electricity demand (0.5 TW e) with wind power would warm Continental US surface temperatures by 0.24°C. Warming arises, in part, from turbines redistributing heat by mixing the boundary layer. Modeled diurnal and seasonal temperature differences are roughly consistent with recent observations of warming at wind farms, reflecting a coherent mechanistic understanding for how wind turbines alter climate. The warming effect is: small compared with projections of 21st century warming, approximately equivalent to the reduced warming achieved by decarbonizing global electricity generation, and large compared with the reduced warming achieved by decarbonizing US electricity with wind. For the same generation rate, the climatic impacts from solar photovoltaic systems are about ten times smaller than wind systems. Wind’s overall environmental impacts are surely less than fossil energy. Yet, as the energy system is decarbonized, decisions between wind and solar should be informed by estimates of their climate impacts.

Global demand for fossil fuels is growing

“Unprecedented efforts to install renewable power capacity have only translated into meeting 2 per cent of global energy demand, meaning the world’s overwhelming reliance on fossil fuels shows no sign of abating.” click here

Affordable energy is essential for sustainable infrastructure

“A new report prepared by Kleinhenz & Associates for the Ohio Oil and Gas Energy Education Program shows increased oil and natural gas production from hydraulic fracturing  (“fracking”) has saved American consumers $1.1 trillion in the decade from 2008 to 2018. This breaks down to more than $900 in annual savings to each American family, or $9,000 in cumulative savings.” click here

Wind turbines are an unreliable electricity source

“The main operating constraint of wind poweris, of course, wind speed. At the low end of the scale, you need about a 6 or 7 miles-per-hour wind to get a turbine moving. This is called the “cut-in speed.” To generate maximum power, about a 30 mph wind is typically required. But, if the wind speed is too high, the wind turbine will shut down. This is called the “cut-out speed,” and it’s about 55 miles per hour for most modern wind turbines.” click here

Learning the hard way 100% renewable energy is unsustainable

“An inconvenient truth is hanging over Georgetown, Texas: Its celebrated shift to renewable energy doesn’t look like a national model these days. Electric rates are up. Critics are blasting the costs. And the city north of Austin is trying to figure out how to mitigate the situation.” click here

Wind turbine installations destroy critical habitat

“And according top Rainer Hülsheger of the state association for natural landscape protection: “At least 12,000 square meters of forest needed to be cleared in order to build one wind turbine alone.” “ click here