Hybrid Power Systems

Village Power – Back to HOMER’s Roots of Remote Hybrid Renewable Microgrids

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The HOMER software is now in use throughout the world, for hybrid renewable power systems of all sizes. But HOMER’s roots at the National Renewable Energy Laboratory were in village power, and HOMER Energy has recently been involved with a few village power projects that reminded us that 1.5 billion people still live without electricity, and the recent price increases in diesel fuel have made the transition to renewables far more compelling for […]

Strawman Proposal for a Taxonomy of Renewable Penetration Levels

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This strawman taxonomy provides clear distinctions between different levels of renewable penetration.  By basing the criteria on the architecture and control of the power system, it avoids the ambiguity that is inherent in a taxonomy based on the percentage of renewable penetration or contribution.  Not only is the renewable penetration or contribution subject to multiple definitions, but it can vary widely depending on the load shape, characteristics of specific components, and the resource, […]

Call for Papers: Microgrid Deployment Forum

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HOMER Energy will convene the Microgrid Deployment Forum 2013 in Cancun, Mexico, November 8 and 9 2013, in conjunction with the Solar World Congress, sponsored by the International Solar Energy Society. The Microgrid Deployment Forum 2013 is a two-day event that carefully examines the business models, optimal technology mix, and critical steps for successfully deploying microgrid systems in remote, island, and off-grid environments. The emphasis is on refining the business model as well […]

The Problem with 100% Renewable Energy

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The New York Times reported recently on the work of a group of Stanford researchers, who published a piece in the journal Energy Policy claiming that the main issues with 100% renewables are neither economic nor technical but rather social and political will. Jesse Berst of Smart Grid News countered with a title that included the phrase, “Get real, Stanford.” As experts in the economics of renewable energy, HOMER Energy would like to […]

How to Classify Microgrids: Setting the Stage for a Distributed Generation Energy Future

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In this post by HOMER CEO Dr. Peter Lilienthal, we consider the problem of how to classify microgrids. This is a special entry in our microgrid learning series. Although microgrids are becoming more and more prevalent in both the press and in energy world, there is no common definition of exactly what constitutes a microgrid or how to differentiate among types of microgrids. The term microgrid is not well defined or distinguished from […]

HOMER helps bring electricity to remote areas of Afghanistan

Phys.org reported today that Mahdi, Sadiqi, a recent graduate of Kansas State University and native of Afghanistan, used the HOMER software to model robust, reliable energy systems for remote areas of Afghanistan. Although HOMER is increasingly used for state of the art microgrid design, this example goes back to HOMER’s roots as a tool for village power. The benefits of electricity to rural areas can literally mean the difference between living standards of […]

The rise of renewables

As it becomes incresingly clear that fossil fuels will soon be unable to fulfill the world’s energy needs, the German government and U.S Military are just a few of the major powers taking on renewable energy as the way of the future. Army And Marines Go Fossil Fuel-Free Microgrid Deployment Tracker 2Q11 Germany Plans Renewable Energy Superhighway

Japan: The end for nuclear power?

Although nuclear power may be efficient and “clean”, the recent accident in Japan has made renewable energy look much more desirable. While it was clearly a tragic and disastrous incident, the Fukushima meltdown may renew interest in renewable energy sources. Renewables now outweigh nuclear Why Japan’s Shift Away from Nuclear Is Good for Business The Anatomy of High Penetration Wind-Diesel Power Systems Japan To Promote Renewable Energy The High-wire Act of Integrating Renewables […]

Can Boulder own its own power? Lots happening in distributed generation today

As the distributed generation field expands, there is more news than this editor can handle in one day! Today’s #1 story relates to our home town of Boulder, Colorado, where the franchise agreement with Xcel Energy is coming to an end. This evergreen “woo woo” town is looking hard at options that would leave Xcel out of the picture. Boulder Can Own Its Power With Distributed Generation Bill Gates may be somewhat off […]

Microgrid community coming to California, Gargantuan Turbines, and Thin Films

First Micro-Grid, Distributed Energy Resource Community Coming to California As the first private commercial micro-grid project of its kind in California, the project, called 2500 R Street, will enable homeowners to achieve net zero energy efficiency at an unprecedented rate of affordability. At the same time, utilities will gain the ability to dispatch and control their renewable resources discretely or in aggregate; improving utility transmission and distribution, deferring capital asset investment, improving grid […]