...1. Abstract
This analysis reviews and synthesizes the literature on the net energy return for electric power generation by wind turbines. Energy return on investment (EROI) is the ratio of energy delivered to energy costs. We examine 119 wind turbines from 50 different analyses, ranging in publication date from 1977 to 2007. We extend on previous work by including additional and more recent analyses, distinguishing between important assumptions about system boundaries and methodological approaches,
and viewing the EROI as function of power rating. Our survey shows an average EROI for all studies (operational and conceptual) of 25.2 (n = 114; std. dev = 22.3). The average EROI for just the operational studies is 19.8 (n = 60; std. dev = 13.7). This places wind in a favorable position relative to fossil fuels, nuclear, and solar power generation technologies in terms of EROI.[/I]
Meta-analysis of net energy return for wind power systems - ScienceDirect
The important thing is the ratio of energy output to energy input, known as the energy return on energy invested (EROEI).
First, since turbines never produce rated output the numbers are worthless
Second,
From your article. Note the authors, and who they work for.
Ida Kubiszewski a Cutler J.Cleveland b Peter K.Endres c
a
Gund Institute for Ecological Economics, University of Vermont, 617 Main Street, Burlington, VT 05405, USA
b
Department of Geography and Environment, Boston University, 675 Commonwealth Avenue, Boston, MA 02215, USA
c
JW Great Lakes Wind, LLC, 1900 Superior Avenue, Suite 333, Cleveland, OH 44114-4420, USA
No possibility of bias there.


And if that isn't sufficient, note the cost of electricity in Germany after they instituted Energiewende.
"Renewables" are working so well they're tearing down forests to dig for lignite.
Grid level wind and solar are a scam for rent seekers to cash in on.