Energy Efficiency

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...

This article has been cross-posted on The Oil Drum. Last month, I brought you some nice maps showing when and where good wind resources are found in the US.  Now I've found something better: a visual comparison of electrical load with wind farm production, published by the Western Area Power Administration in 2006.  The study compared electricity production from five wind farms in Northern Colorado, Southwestern Nebraska, and Central Wyoming in 2004, 2005, and the start of 2006, compared with electricity consumption in the same area over the same time period. Comparison of Wind Production to...

by Debra Fiakas CFA Despite reporting the highest gross profit margin in Energy Recovery's (ERII:  Nasdaq) history, investors were sorely disappointed with financial results in the Company’s second quarter ending June 2017.  On the first day of trading following the earnings release the share price gapped downward and closed even lower under above average trading volume.  This is likely because there was some expectation that Energy Recovery could finally report a net profit in the quarter as sales of the Company’s flagship PX Pressure Exchanger to the desalination market had appeared to pick up in recent months.  Unfortunately the Company reported...

Investors did not like Hannon Armstrong's (NYSE:HASI) fourth quarter earnings announcement last night.  While core earnings were a little weaker than expected, that is not what has the stock trading down 11% today.  What shocked investors is the fact that the company did not raise the dividend this year for the first time since the REIT went public, and it gave 3 year guidance which likely disappointed many investors. Last month, I wrote, I expect that Hannon Armstrong will continue to be a well run and conservative business in 2018, and that management will raise the dividend at the lower end...

Portfolio theory can lend insights into which carbon abatement strategies policymakers should pursue.  If policymakers listen, what will it mean for green investors? Tom Konrad, Ph.D., CFA Good Info, Not Enough Analysis I've now read most of my review copy of Investment Opportunities for a Low Carbon World.  The quality of the information is generally excellent, as Charles has described in his reviews of the Wind and Solar and Efficiency and Geothermal chapters.  As a resource on the state of Cleantech industries, it's generally excellent.  As an investing resource, however, it leaves something to be desired.  Each chapter is written...

Tom Konrad CFA Geothermal Heat Pumps (GHP) are a niche market.  They shouldn’t be. Disclosure: Long WFIFF, short LXU puts (a net long position.) A Better Mousetrap? Ralph Waldo Emerson never said “Build a better mousetrap, and the world will beat a path to your door.”  The mousetrap that likely inspired the misquote was invented seven years after his death.  Unfortunately, many people take it literally.  GHPs have all the hallmarks of a better mousetrap: They do the job of heating and cooling a building more efficiently than any other option.  Despite...

John Petersen In 2009, the world produced some 13.2 billion metric tons of hydrocarbons, or about 4,200 pounds for every man, woman and child on the planet. Burning those hydrocarbons poured roughly 31.3 billion metric tons of CO2 into our atmosphere. The basic premise of alternative energy is that widespread deployments of wind turbines, solar panels and electric vehicles will slash hydrocarbon consumption, reduce CO2 emissions and give us a cleaner, greener and healthier planet. That premise, however, is fatally flawed because our planet cannot produce enough non-ferrous industrial metals to make a meaningful difference and the prices...

by Tom Konrad Last February, I wrote " I expect the Fed-induced reprieve to be fairly short lived, ten solid companies I'd be happy to buy more of if and when the bottom really falls out of the market."  When I wrote those words, the Dow Jones Industrial Average was over 12,700.  Now, it's around 8,500, and I doubt anyone remembers the "Fed-induced reprieve" I was referring to.  The "bottom fell out" in September and October.    On October 12, with the DJIA at 8451, I wrote "I don’t know where the market will go from here, but I...