Wind energy: I linked the article from which this graphic is taken earlier in the week. If I find the link / that post, I will link it again. This is most fascinating. The authors note this in their study which accompanies the graphic below:
In the United States, wind-plant performance declines smoothly with age, until a stepwise drop in performance occurs when plants age out of eligibility for the performance tax credit.
The stepwide change in performance, a pattern not found in other countries, indicates that performance decline can be influenced by policy mechanisms and the cost effectiveness of maintenance and is not an immutable function of physical degradation of the wind turbines.
The overall decline rate is on the lower end of estimates from other countries.
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Sophia: Sight Words
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The Paint Page
The two older granddaughters and I visited three antique stores yesterday (and a fourth the day before).
Not antiques, but seen in one of the stores, something I had not seen before. Interesting. From Great Britain.
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