| Wind Watch is a registered educational charity, founded in 2005. |
Climatic Impacts of Wind Power
Author: | Emissions, Environment, Meteorology
Translate: FROM English | TO English
Translate: FROM English | TO English
Highlights
- Wind power reduces emissions while causing climatic impacts such as warmer temperatures
- Warming effect strongest at night when temperatures increase with height
- Nighttime warming effect observed at 28 operational US wind farms
- Wind’s warming can exceed avoided warming from reduced emissions for a century
Summary
We find that generating today’s US electricity demand (0.5 TWe) 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.
Lee M. Miller, David W. Keith
School of Engineering and Applied Sciences, Harvard University, Cambridge, Mass.
Joule, Volume 2, Issue 12, P2618-2632, December 19, 2018. DOI: 10.1016/j.joule.2018.09.009
Download original document: “Climatic Impacts of Wind Power”
See also: Observation-based solar and wind power capacity factors and power densities
This material is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.
The copyright of this material resides with the author(s). As part of its noncommercial educational effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Queries e-mail.
| Wind Watch relies entirely on User Contributions |
 (via Stripe) |
 (via Paypal) |
Share:
[ Short URLs: https://wind-watch.org/doc/?p=5218 | http://wndfo.net/D5218 ]
Tags: Wind power, Wind energy
