Flywheel

Electricity storage stocks are publicly traded companies whose business involves the storage of electricity.  They include battery stocks and hydrogen stocks (see links), while companies involved in other storage technologies such as pumped hydro energy storage, Compressed Air Energy Storage, capacitors, flywheels, and thermal storage are listed here. This list was last updated on 3/22/2022. Dais Analytic Corp. (DLYT) Dresser-Rand Group (DRC) Fluence Energy, Inc. (FLNC) Graftech International (GTI) Highpower International (HPJ) Kemet Corp. (KEM) Maxwell Technologies Inc (MXWL) If you know of any energy storage stock that is not listed here and should be, please let us know by leaving a comment. Also for stocks in the...

John Petersen Tom Lehrer is frequently credited with a quip that perfectly summarizes my feeling about the financial markets in the third quarter, "Apart from that Mrs. Lincoln, how did you enjoy the play?" During the quarter we were given box seats to classic political opera in two acts. Act One was set in Washington DC while Act Two moved to Europe so we could hear the same tortured songs of woe in a different language. We all know the opera has to end with the immensely popular "Kick the Can Chorus," but we suspended disbelief, bought into...

John Petersen The most widely misunderstood subject in the field of energy storage is the potential for grid-based applications. They fire the imagination because the grid is so pervasive and the need is so great. They also present immense challenges to storage technology developers because the fundamental economic value per unit of grid-based energy storage is very low. While the subject of grid-based storage provides rich fodder for media reports and political posturing, the reality bears little relation to the perception. On March 9th, Lux Research published a sorely needed reality check in a new report titled "Grid...

Tom Konrad CFA How material is the failure of one of Beacon Power's (BCON) flywheels on July 27?<a href="http://www.altenergystocks.com/comm/content/beacon-power-corporation/" beacon="" power's="" (bcon) Last week, I published an article Four Clean Energy Value Stocks I'm Buying Now, including Beacon Power as one of the four.  My rationale for including Beacon was: Beacon has been operating their first commercial scale 20MW flywheel energy storage plant  since early this year without mishap, achieving full capacity in June.  They are set to begin construction of their second 20MW plant later this year, 54% of...

7.17.09 Storage Week John Petersen Infocast’s Storage Week was all I had hoped it would be, and more. While I thoroughly enjoyed serving on three discussion panels and was warmly received by roughly 250 attendees, including executives of companies that I've occasionally criticized, the most important value for me came from the opportunity to hear four days of high-level presentations by industry executives, national thought leaders and policymakers who repeatedly stressed that: From a utility perspective grid-based energy storage is the functional equivalent of an instantly...

It’s official! Cleantech, the sixth industrial revolution, has arrived on time and in the midst of extraordinary crisis. Like every good revolution, blood is flowing in the streets; the guillotine is en route to Wall Street and the mob is so busy plotting retribution for the excesses of the past that most have no time to consider the future. But as yesterday’s dynasties decay, crumble and fall, a new generation of visionaries is already building on the wreckage of the past. These are indeed troubled times that bear an eerie resemblance to the opening sentence from A Tale of...

10.08.09 ACPW John Petersen This morning I awoke to a comment from Seeking Alpha contributor Michael Eisenberg who asked me to lay out my core thesis on why Active Power, Inc. (ACPW) merits attention from investors who are interested in the energy storage sector. While Altenergystocks and Seeking Alpha don't generally like to publish articles about companies that trade for under a dollar, I believe Active Power merits an exception to the general policies. As regular readers know, I've been a small company securities lawyer for almost...

John Petersen Last month Lux Research released a bottom-up evaluation of the cost effectiveness of eight energy storage technologies in six grid-scale applications throughout 44 countries, including all 50 U.S. states. Their report titled "Grid Storage under the Microscope: Using Local Knowledge to Forecast Global Demand" predicts that annual global demand for grid-scale energy storage will reach an astounding 185.4 gigawatt-hours (GWh) by 2017 and represent a $113.5 billion incremental revenue opportunity for an industry that currently generates sales of $50 to $60 billion a year. In the grid-scale sector alone, Lux predicts an average...

In August of last year I wrote an article titled "Grid-based Energy Storage: Birth of a Giant." Over the last 12 months I've written a series of follow-on articles that discuss the principal classes of manufactured energy storage devices and the companies that are making or planning to make products for smart grid energy storage applications. My entire archive of articles on the energy storage sector is available here. One of the biggest problems I've encountered over the last year has been a dearth of reliable third party information that can help investors understand the breadth and...

John Petersen With only a couple trading days left in 2009, this is as good a time as any for a performance review. The predictions I made at this time last year were pretty solid with an 80% accuracy rate on price direction. For the year, a $1,000 investment in each of my green star companies would have yielded a portfolio appreciation of 67%, which handily beat the broader market indices. That being said, my star and caution ratings were a good deal less prescient because I seriously underestimated the potential of both Maxwell Technologies (MXWL) and Active...

John Petersen The next couple months are shaping up as a time of extraordinary change in the energy storage sector. Events that will drive the change include: Press reports indicate that the Department of Energy will be ready to announce it's preliminary decisions on the allocation of $2 billion in ARRA battery manufacturing grants sometime this week; We've seen numerous reports on automaker's plans to begin manufacturing PHEVs and EVs in limited volumes for testing and demonstration purposes; New tailpipe emission standards in Europe and accelerated CAFE standards...

John Petersen In late June I wrote a forward looking article that identified several companies in my energy storage and vehicle electrification group that I expected to perform well or perform poorly during the third quarter. Since short-term market changes are notoriously hard to predict, it’s worthwhile to look back and see where I got things right and where I got them wrong. So I’ll start today with a quick summary table and assess the relative accuracy of my Q3 calls, and then turn my attention to Q4, which is shaping up as a time of bright opportunity...

America’s electric power grid is subject to immense inefficiencies that arise from the interplay between centralized power generation, local power consumption and on demand utility service. To put things into a broad perspective, the nameplate capacity of U.S. generating facilities is about 1 million Megawatts (MW), so if all of our power plants ran 24/7 we would have a theoretical annual generating capacity of 8.7 billion Megawatt-hours (MWh). Since demand for electricity fluctuates on both a daily and seasonal basis, total electric power generation in 2007 was only 4.2 billion MWh, or less than 50% of nameplate...

John Petersen In December 2008 I went hunting for opportunities in the energy storage sector and selected six pure-play stocks that seemed seriously undervalued. I bought Enersys (ENS) at $6.00, Exide Technologies (XIDE) at $2.00 and Active Power (ACPW) at $0.26. While Enersys and Exide have been fabulous performers with appreciation to date of 442% and 397%, respectively, Active Power has been the runaway champion with appreciation to date of 923%. My other three picks have performed poorly. C&D Technologies (CHHP.PK) is down 96% and finalizing a restructuring that will give 95% of its equity to...

In June, I wrote how intermittent power sources such as photovoltaics and wind would have to compete with baseload technologies such as IGCC "Clean Coal" and nuclear for capacity on the grid.  The key problem is that neither baseload technologies nor intermittent technologies are able to match themselves to the fluctuations of demand.  This creates a need for technologies which can fill the varying gaps between supply from these sources, and normal energy use.  From the comments, it seems like I was not completely clear how intermittent and baseload power cause problems for each other, so I will start...

John Petersen In 1883 Thomas Edison said, "The storage battery is one of those peculiar things which appeals to the imagination, and no more perfect thing could be desired by stock swindlers than that very selfsame thing. ... Just as soon as a man gets working on the secondary battery it brings out his latent capacity for lying." The problem isn't so much the batteries, which haven't improved all that much over the last century. Instead, the problem lies in the fertile imaginations of scientists, engineers, politicians, ideologues, analysts and investors who focus on new energy...