This document details OSHA violations at the Vestas blade manufacturing facility in Windsor, Colorado. Safety and workplace violations are not unique to this site. Vestas was also cited for workplace violations at overseas factories. These violations date back to April and May, 2010.
This new report from Colorado's natural gas industry says increased use of wind energy indirectly results in raised pollution levels produced by some coal-fired power plants along the Front Range. The report recommends curbing the use of wind energy during the next one or two years to levels that match power output at existing natural gas-fired power plants -- and building more natural gas plants in the long term. The introductory sections of the report are provided below. To access the full document click on the link at the bottom of this page.
In this report we discuss some recent studies that have occurred in the United States since our previous work [2, 3]. The key objectives of these studies were to quantify the physical impacts and costs of wind generation on grid operations and the associated costs. Examples of these costs are (a) committing unneeded generation, (b) allocating more load-following capability to account for wind variability, and (c) allocating more regulation capacity. These are referred to as “ancillary service” costs, and are based on the physical system and operating characteristics and procedures. This topic is covered in more detail by Zavadil et al. .
If renewables were indeed less expensive than conventional alternatives as suggested by the Public Policy Consulting Report, why mandate their purchase and set a minimum market share?