The OurEnergyLibrary aggregates and indexes publicly available fact sheets, journal articles, reports, studies, and other publications on U.S. energy topics. It is updated every week to include the most recent energy resources from academia, government, industry, non-profits, think tanks, and trade associations. Suggest a resource by emailing us at info@ourenergypolicy.org.
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101 to 110 of 158 item(s) were returned.
Over the past decade wind farm control has gone from being a research topic to a viable solution and an opportunity for the wider industry to optimize wind farm value and contribute to reducing the levelized cost of energy. DNV believes that successful design and implementation of wind farm control relies on the accuracy of analytical techniques and models, and on their validation against experimental data. DNV has gathered experts in various disciplines to create this position paper, which describes DNV’s position on what is required to make wind farm control technically viable, suitable for project investment and eventually suitable… View Full Resource
Wind energy has experienced accelerated cost reduction over the past five years—far greater than predicted in a 2015 expert elicitation. Here we report results from a new survey on wind costs, compare those with previous results and discuss the accuracy of the earlier predictions. We show that experts in 2020 expect future onshore and offshore wind costs to decline 37–49% by 2050, resulting in costs 50% lower than predicted in 2015. This is due to cost reductions witnessed over the past five years and expected continued advancements. If realized, these costs might allow wind to play a larger role in …
View Full ResourceOver the last two years, the number of renewable projects in the PJM interconnection queue has sky-rocketed, bringing with it a whole new set of challenges for developers. Solar and offshore wind projects will dominate this surge.
Navigating the PJM interconnection process for wind and solar projects presents an overview of the queue process, related industry trends, and some of the emerging issues related to network upgrades and cost exposure for renewable projects. You’ll learn: how the PJM interconnection process uses a sequential cluster-based assessment made up of five major milestones; two recent case studies that illustrate the complexity of …
View Full ResourceEnergy produced offshore is a major component of global oil and natural gas supply and
could provide an increasingly important source of renewable electricity. Resources are
enormous, but offshore projects have to prove their worth in a changing market and
policy context, amid a variety of pressures on the world’s oceans. More than a quarter of
today’s oil and gas supply is produced offshore, mostly in the Middle East, the North Sea,
Brazil, the Gulf of Mexico and the Caspian Sea. While offshore oil production has been
relatively stable since 2000, natural gas output from offshore fields has risen by …
Wind turbines continuously remove kinetic energy from the lower troposphere, thereby reducing the wind speed near hub height. The rate of electricity generation in large wind farms containing multiple wind arrays is, therefore, constrained by the rate of kinetic energy replenishment from the atmosphere above. In recent years, a growing body of research argues that the rate of generated power is limited to around 1.5 W m−2within large wind farms. However, in this study, we show that considerably higher power generation rates may be sustainable over some open ocean areas. In particular, the North Atlantic is identified as …
View Full ResourceThis report summarizes the results of an expert elicitation survey of 163 of the world’s foremost wind energy experts, aimed at better understanding future wind energy costs and potential technology advancement. We specifically sought to gain insight on the possible magnitude of future cost reductions, the sources of those reductions, and the enabling conditions needed to realize continued innovation and lower costs. In implementing what may be the largest single elicitation ever performed on an energy technology in terms of expert participation, we sought to complement other tools for evaluating cost-reduction potential, including learning curves, engineering assessments, and other means …
View Full ResourceThis report summarizes the results of an expert elicitation survey of 163 of the world’s foremost wind energy experts, aimed at better understanding future wind energy costs and potential technology advancement. We specifically sought to gain insight on the possible magnitude of future cost reductions, the sources of those reductions, and the enabling conditions needed to realize continued innovation and lower costs. In implementing what may be the largest single elicitation ever performed on an energy technology in terms of expert participation, we sought to complement other tools for evaluating cost-reduction potential, including learning curves, engineering assessments, and other means …
View Full ResourceWe develop roadmaps for converting the all-purpose energy (electricity, transportation, heating/cooling, industry, and agriculture/forestry/fishing) infrastructures of each of 139 countries of the world to ones powered by wind, water, and sunlight (WWS). As of the end of 2014, 3.8% of the WWS energy generation capacity needed for a 100% world has already been installed in these countries, with Norway (67%), Paraguay (54%), and Iceland (39%) the furthest along The roadmaps envision 80% conversion by 2030 and 100% conversion of all countries by 2050. The transformation can reduce 2050 power demand relative to BAU by ~32.3% due to the efficiency of …
View Full ResourceThis study presents roadmaps for each of the 50 United States to convert their all-purpose energy systems (for electricity, transportation, heating/cooling, and industry) to ones powered entirely by wind, water, and sunlight (WWS). The plans contemplate 80–85% of existing energy replaced by 2030 and 100% replaced by 2050. Conversion would reduce each state’s end-use power demand by a mean of B39.3% with B82.4% of this due to the efficiency of electrification and the rest due to end-use energy efficiency improvements. Year 2050 end-use U.S. all-purpose load would be met with B30.9% onshore wind, B19.1% offshore wind, B30.7% utility-scale photovoltaics (PV), …
View Full ResourceRegional wind integration studies in the United States require detailed wind power output data at many locations to perform simulations of how the power system will operate under highpenetration scenarios. The wind data sets that serve as inputs to these studies must realistically reflect the ramping characteristics, spatial and temporal correlations, and capacity factors of the simulated wind plants, as well as be time-synchronized with available load profiles.
The Wind Integration National Dataset (WIND) Toolkit described in this report fulfills these requirements, and constitutes a state-of-the-art national wind resource data set covering the contiguous United States from 2007 to 2013 …
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