Illustration of a complete wind energy system. NREL researchers are looking at ways to improve system-level performance and cost reductions across all wind plants.

NREL researchers advance wind energy systems engineering

In recent years, researchers from the National Renewable Energy Laboratory (NREL) have been making progress in multiple avenues of wind systems engineering. This includes the study of how to integrate wind energy engineering and cost models across wind plants, finding the important interactions between various subsystems to achieve a better understanding of how to improve

The program, funded by the Energy Department, aims to improve the performance of clean energy business incubators, connect critical industry and energy sector partners, and advance clean energy technologies emerging from universities and federal laboratories.

Incubator network to help clean-energy entrepreneurs

The Energy Department’s National Renewable Energy Laboratory (NREL) and the Electric Power Research Institute (EPRI) have launched the Clean Energy Incubator Network. The program, funded by the Energy Department, aims to improve the performance of clean energy business incubators, connect critical industry and energy sector partners, and advance clean energy technologies emerging from universities and

NREL's Battery Lifetime Analysis and Simulation Tool (BLAST) suite answers questions with a combination of advanced models of batteries, the systems they operate in, and their interaction with users and the environment.

Software helps optimize battery lifespan

Editor’s note: Those designing power-storage facilities may find value in this software from NREL. While upfront costs of lithium-ion batteries must be significantly cut for electric vehicles (EVs) to reach a wider audience, lifespan optimization and synergistic business approaches offer additional ways to make EVs more affordable. NREL’s new Battery Lifetime Analysis and Simulation Tool (BLAST) suite

Nrel report

NREL releases its 2013 Renewable energy data book

United States overall energy consumption grew to 97.3 quadrillion Btu in 2013, a 2.4% increase from 2012. Energy consumption from coal and renewables grew slightly, while consumption from petroleum and natural gas fell slightly. A few key findings in the book include: United States electric power sector energy consumption grew to 38.4 quadrillion Btu in 2013,

The energy in an overhead line is a balance between environmental conditions and the Joule Effect.

Adjusting for weather conditions helps boost power transmission

Leveraging weather conditions could help utilities deliver electricity faster, cheaper and safer. Donna Rennemo, WindSim , windsim.com Research has shown that knowing the weather conditions and the impact on electrical power lines can increase transmission capacity limits by 10 to 40%. This includes key weather components such as air temperature and solar radiation, but also

Nrel table overall cost results

How tip velocity affects wind turbine design

This study conducted by NREL engineers, investigates the effect of tip-speed constraints on system levelized cost-of-energy (LCOE). The results indicated that a change in maximum tip-speed from 80 to 100 m/s could produce a 32% decrease in gearbox weight (a 33% reduction in cost), which would result in an overall reduction of 1 to 9%

Gearbox sizing for different speed ratio requirements driven by different maximum allowable tip speed constraints.

Sandia and NREL collaborate on the impact of tip speed constraints on wind turbine design and plant cost of energy

NREL and Sandia recently published two reports on their collaborative effort to study the effects of increased maximum allowable blade tip velocities on overall system cost and performance. The maximum rotor rotation speed for utility-scale wind turbines is generally constricted by noise considerations. Even so, innovations in acoustics or siting in remote locations or both

Make your pitch. In addition to hearing business case presentations from 30 clean energy companies, participants were engaged by a comprehensive lineup of speakers, in-depth panel discussions and organized networking opportunities.

NREL Industry Growth Forum recognizes top clean energy technologies and startup businesses

The Industry Growth Forum hosted by the Energy Department’s National Renewable Energy Laboratory (NREL) attracted nearly 400 investors, entrepreneurs, scientists and thought leaders to Denver recently. Three companies where honored with Best Venture and Outstanding Venture Awards. The two-day forum highlighted clean energy technology and business developments. In addition to hearing business case presentations from 30

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In the Energy Systems Integration Facility (ESIF) Insight Center, NREL Senior Engineer Pat Moriarty, left, and NREL Senior Engineer Paul Fleming review velocity (blue) and turbulence (yellow) in a simulation of the Lillgrund Wind Farm in Denmark. The researchers have written the open-source software tool Simulator for Wind Farm Applications (SOWFA), which can calculate how undulating ground, whipping blades, surface temperatures, and other variables alter the air flow and energy production at wind farms. All photos are by NREL’s Dennis Schroeder.

NREL software lets engineers see how wind behaves and more

Wind energy is so close to achieving cost parity with fossil fuels that just a little extra efficiency is all that is likely needed to push it into the mainstream and past the Energy Department’s goal of 20% wind energy by 2030. That extra efficiency may be realized with the help of a software developed

Nrel industry growth forum

NREL industry growth forum attracts clean energy entrepreneurs and investors

Forum to feature business presentations from 30 clean energy startups, networking opportunities, compelling panels and speakers Thirty clean energy companies will present their business cases to a panel of investors and industry experts Oct. 28 and 29 in Denver, as the Energy Department’s National Renewable Energy Laboratory (NREL) hosts its annual Industry Growth Forum. The