LEDs: A better light bulb. Again.

by Marc Gunther.  So you remember CFLs, right? The curlicue bulbs? The time they took to go on? The harsh light? Despite their drawbacks, compact fluorescents have sold fairly well in the US. They save customers money. Utilities promoted and subsidized CFLs, particularly in California. Walmart (NYSE:WMT) pledged to sell 100 million of them. Time magazine put one on the cover. By 2012, CFLs represented 27 percent of the bulbs installed in the over 3 billion medium screw-based sockets in the United States, according to a Navigant study quoted by NRDC. Other researchers put the number lower, about 20 percent,...

How to Build a Cleantech Company Without Huge Investment Capital: A Case Study

David Gold While many cleantech companies require very large amounts of capital in order to get to market, there is a quiet group of cleantech companies bucking that trend.  Companies like Heartland Biocomposites (Green Building Materials), RealTech (Water Testing) and TerraLUX  (LED Lighting) all built significant and growing businesses with compelling intellectual property and did so initially without multi-millions in capital from venture funds (let alone tens or hundreds of millions). Because TerraLUX is one of our portfolio companies and I therefore know them best, their story is one I am able to share. TerraLUX boasts...

LSB Industries And Activist Fund Position Themselves For Board Election

With the resignation of four non-independent directors and reduction in the size of LSB’s board, the company has managed to appear to be making a step towards reform while making it harder for the activist fund to gain influence. Gaining influence in a tightly controlled family firm is never easy. It looks like the task just got significantly harder for Engine Capital in its quest to unlock shareholder value at LSB.
energy efficiency stock fan light shelf

List of Energy Efficiency Stocks

Energy efficiency stocks are publicly traded companies using a wide range of technologies to deliver the same energy services using less energy in the built environment. This includes efficient lighting such as LED lighting stocks, insulation, efficient motors, efficient appliances and appliance replacement services, sensor and control technologies, the internet of things, efficient power conversion and generation, and energy efficient design, construction, and retrofits. See the list of efficient vehicle stocks and alternative transportation stocks for companies reducing energy used in transportation. This list was last updated on 7/20/2022. Acuity Brands(NYSE:AYI) AIXTRON SE (AIXA.DE) Ameresco, Inc. (AMRC) Appliance Recycling Centers of American (ARCI) Aspen Aerogels, Inc....

List of LED Lighting Stocks

LED lighting stocks are publicly traded companies involved in the manufacture or deployment of efficient LED lighting technology. AIXTRON SE (AIXA.DE) Acuity Brands (AYI) Amtech Systems Inc (ASYS) Applied Materials (AMAT) Carmanah Technologies Corporation (CMH.TO, CMHXF) Cree, Inc. (CREE) Energy Focus (EFOI) EPISTAR corporation (2448.TW) Koninklijke Philips N.V. (PHG) Lighting Science Group Corporation (LSCG) Lime Energy (LIME: Nasdaq) LSI Industries Inc. (LYTS) Orion Energy Systems, Inc (OESX) Osram Licht AG (OSAGF, OSR.DE) Neo-Neon Holdings Limited (1868.HK) Revolution Lighting Technologies, Inc. (RVLT) Rubicon Technology, Inc. (RBCN) SemiLEDs Corporation (LEDS) Trans-Lux Corporation (TNLX) Universal Display(OLED) Veeco Instruments Inc. (VECO) Zumtobel Group (ZMTBF: OTC or ZAG.VI) If you know of any LED lighting stock that is not listed here and should be, please let us know...

Lime Energy’s Long Dark Year Of The Soul

Tom Konrad The last year has been hard on Lime Energy (NASD:LIME Disclosure: I own this stock.)  The company discovered problems with its internal reporting over a year ago, and the effort to restate the books and establish proper controls took much longer than anyone expected, in large part because the internal investigation uncovered additional problems as it proceeded. While the company was in danger of delisting, creditors were reluctant to provide funding, and this led the company to sell its two most capital intensive businesses: its asset development business, and its ESCO business.  The ESCO business required backing...

FLIR: Another Dividend-Paying Energy Efficiency Stock

Tom Konrad CFA FLIR Systems' (FLIR) IR cameras save energy not just by spotting leaks, but by spotting intruders in the dark. When I published my list of dividend paying energy efficiency stocks in January, I missed one, and it is a long-time favorite.  FLIR Systems (FLIR) business is focused around thermography, and I picked FLIR as a stock likely to benefit from the stimulus in March 2009 because FLIR's cameras are used by energy raters.   FLIR did benefit from the stimulus, rising 56% by the end of 2009 from the $21 price when I...

The Pros Pick Three Green IT Stocks For 2014

Tom Konrad CFA Green 2014 image via BigStock Being green is not all about wind turbines and solar panels.  In fact, it’s usually greener to be smarter about using what we have than to replace it with something new, no matter how green. My panel of professional green money managers understands this.  When I asked them each for their top three green stock picks for 2014, there were as many picks focused on smarter resource use as there were solar stocks. I recently gave...

Energy Recovery Recovers Its Own Energy

by Debra Fiakas CFA Energy Recovery (ERII:  Nasdaq) has announced a breakthrough license of its hydraulic fracturing pump to oil and gas patch service provider Schlumberger (SLB:  NYSE).  Called the Vorteq by Energy Recovery, the pump features the company’s core pressure exchange technology, representing an entirely new approach to driving the chemical-laced water producers send deep into the earth to extract oil and gas.  Energy Recovery develops and markets components and equipment for fluid flow and pressure cycles found industrial processes.  Its patented pressure exchange devices are designed to take advantage of energy created in...

Is There Life After the Bulb?

When incandescent light bulbs are phased out in the United States between 2012 to 2014, managers of utility Demand Side Management (DSM) programs will be between a rock and a hard place.  At the Southwest Energy Efficiency Project's 5th annual Energy Efficiency Workshop, this fact seemed to be the elephant in the room that most of the utility executives in attendance did not want to talk about. One Trick Pony It's not for nothing that the compact fluorescent bulb, or CFL, has become the international symbol of energy efficiency.  While it is true that we're not going to stop...

Two Dividend-Paying Energy-Efficiency Companies

Charles recently recommended a few dividend paying alternative energy companies as safe havens in the current turmoil.  Since I've been thinking along the same lines, I thought I'd add my own picks.  I currently like energy efficiency companies with solid balance sheets, because I believe that Obama's fiscal stimulus will contain significant money for green, energy-efficiency related jobs.   That said, here are two I'd add to Charles' list.  These two also have the advantage of being pure-play (or nearly pure-play) bets on clean energy. Name Ticker Yield Focus Related Articles Waterfunace Renewable Energy WFI.TO, WFFIF.PK...

Book Review: Investment Opportunities for a Low Carbon World (Geothermal + Efficiency)

Charles Morand Last Thursday, I reviewed two chapters from the recently published book "Investment Opportunities for a Low Carbon World"*. This post reviews two more.  Geothermal Energy Alexander Richter, Glitnir Bank (now Íslandsbanki) Geothermal is one of the most interesting forms of clean power generation there is. As noted by the author, the most convincing argument for geothermal electricity is the fact that it operates at capacity factors in the upper 90s. This makes it the only renewable technology suitable for baseload power with the exception of dam-based (i.e. large-scale) hydro. However, as...

Five Alternative Energy Stocks I’ll Research “One of These Days”

I have more ideas than I have time to explore them, and it's getting out of hand.  I still need to write the promised articles on Evergreen Solar (ESLR) and Lithium Technology Corp (LTHU), but there are many others that have caught my attention over the last six months or so.  Since the list keeps getting longer, I thought I'd just give you a taste of some of the companies in my inbox, and why they seem interesting.  Since I may or may not ever write articles about any of these, I thought I'd give people the opportunity to...

Hannon Armstrong Yeild On Track For 7% in Q4 With More To Come

Tom Konrad CFA After the close on Thursday, November 7th, Hannon Armstrong Sustainable Infrastructure Capital (NYSE:HASI) declared third quarter earnings.  Results were in-line with my, and other analysts’ expectations: Earnings per share (EPS) of 14 cents, and a declared dividend of 14 cents as well. This more than doubled the second quarter’s 7 cent EPS and 6 cent dividend. Note: I have a large long position in HASI. HASI remains on track to reach managements’ dividend target of “over 7% of the $12.50 IPO price” (22 cents a quarter,) and provided some additional guidance for future dividends....

Geothermal Heat Pumps: The Next Generation

Tom Konrad CFA The most efficient way to heat and cool a building just got more efficient. Geothermal heat pump diagram via Bigstock Climatemaster, a division of LSB Industries (NYSE:LXU), recently announced that their new Trilogy 40 geothermal heat pump (GHP) had been certified by the Air Conditioning, Heating, and Refrigeration Institute (AHRI) to exceed 40 Energy Efficiency Ratio (EER) under ground loop conditions. EER is the ratio of effective cooling (heat removed) to the energy used, at maximal load, and is the standard...

Why I’m Selling Rockwool

Tom Konrad CFA Photo: Cubes made of rockwool for indoor cannabis cultivation by D-Kuru/Wikimedia Commons. While some users may use Rockwool insulation to grow their highs, the recent highs in the stock price have led me to sell part of my holdings. Earlier this year, I bought Rockwool International A/S (COP:ROCK-B, OTC:RKWBF) with the intention of holding it for the long term. I chose Rockwool because it was expanding in the US, provides excellent international diversification, has a strong balance sheet with no net debt, and (not least) is a leader in...
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