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Build up of the graphene materials industry has progressed a bit more slowly than originally expected a decade ago as scientists and engineers peered through their electron microscopes at single atoms of carbon and counted their many attributes.  At the time the potential to improve performance in end products like metal alloys and electronics seemed limitless.   Unfortunately, reality has not imitated early dreams.  Those companies that have brought graphene to the commercial market will attest to the challenges of jumping off the laboratory bench and into a factory. Even more frustrating is the sourcing of graphene to use in research, product development and...

Electric grid stocks are publicly traded companies whose business involves electric infrastructure, including transmission, distribution, pricing, conversion, and regulation.  Includes the list of smart grid stocks. This article was last updated on 8/12/21. ABB Ltd (ABB) Advanced Energy Industries (AEIS) AMSC (AMSC) Avangrid, Inc. (AGR) AZZ Incorporated (AZZ) China Ruifeng Renewable Energy Holdings Ltd (0527.HK) Companhia Paranaense de Energia - COPEL (ELP) Custom Truck One Source, Inc. (CTOS) Digi International (DGII) Echelon Corporation (ELON) EMCORE Group, Inc (EME) ESCO Technologies, Inc. (ESE) Fortis, Inc. (FTS, FTS.TO) General Electric (GE) Hammond Power Solutions Inc. (HPS-A.TO, HMDPF) Hubbell, Inc. (HUB-B, HUB-A) Itron (ITRI) Landis+Gyr Group AG (LAND.SW) MasTec Inc. (MTZ) MYR Group Inc. (MYRG) National Grid PLC (NGG) Prysmian S.P.A (PRI.MI, PRYMF) Quanta Services Inc...

Graphene is a one-atom thick sheet of carbon atom arranged in a honeycomb lattice.  It is an exceptional conductor of heat and electricity and its strength is unparalleled.  Although synthetic graphite can be used to produce graphene and it offers the benefit of consistency, natural graphite is far less expensive as a source material.  Synthetic graphite is made by combining petroleum coke with carbon black in a high heat process that burns up profits as it purifies the carbon. There are several methods for producing graphene.  Exfoliation of natural graphite is perhaps the most common alternative because it produces the least defects and leaves...

Alternative Transportation Stocks are publicly traded companies that offer transportation options that use less fuel per passenger-mile or freight-mile than traditional options. Includes mass transit (both rail and bus), bicycles, and two wheel vehicles. A. P. Moller - Maersk Group (MAERSK-B.CO) Accell Group (ACCEL.AS) Blue Bird Corporation (BLBD) Bombardier Inc (BDRBF) Construcciones y Auxiliar de Ferrocarriles (0MK5.L) CSR Zhuzhou Electric Locomotive (ZHUZF) Canadian National Railway Company (CNI) Canadian Pacific Railway Limited (CP) CSX Corporation (CSX) Cubic Corporation (CUB) Dorel Industries (DIIBF) Firstgroup, PLC (FGP.L) Giant Manufacturing (9921.TW) Grande West Transportation Group Inc. (BUS.V) Great Lakes Dredge and Dock (GLDD) Greenbrier (GBX) L. B. Foster (FSTR) Merida Industry Co. Ltd. (9914.TW) National Express Group (NEX.L) New Flyer Industries (NFYEF, NFI.TO) Norfolk...

by Debra Fiakas, CFA Greater energy density or the amount of energy stored is the mission of every battery developer.  The higher the energy density, the longer a battery can serve its owner.  Scientists have been adjusting circulating chemistry, cloaking electrodes in exotic metals, and otherwise tinkering with conventional battery designs.  Debate even spills over into the raw material supply chain as it has recently over the use of expensive and sometimes difficult to source cobalt as an additive to lithium ion battery designs.   Others are trying to tame silicon for use in battery anodes. Perhaps the most daring developers have abandoned conventional battery design...

Thanks an email from a diligent reader, I have just updated our lists of Clean and Alternative Energy Mutual Funds and Clean and Alternative ETFs and Other Exchange Traded Funds.  Please follow the links to the updated lists. Thanks to him and all the readers who help me keep AltEnergyStocks.com stock lists up to date with your comments and emails.  

The post “Integrated Graphene Producers” featured several graphene producers with novel business models that marry captive graphite sources to the technology and knowhow to produce graphene.  These are not the only graphite producers.  Although not as elegant as graphene with its svelte single-atom profile, the market for graphite has its appeal as well. Graphite has been a staple in steel industry crucibles, foundry molds and automobile brake linings.  These days graphite has moved into another even more important place in cars  -  lithium ion batteries that make electric vehicles viable as replacements for gas guzzling cars and trucks. Spherical graphite is especially desirable because the graphite anodes hold...

by Debra Fiakas, CFA The post “Water:  Invisible Crisis” introduced a new series on water supply in Latin America, describing the lack of access to quality water despite a bountiful supply of rainfall and snow melt.  As the series has unfolded we have learned that water supply in Latin America is largely a local government undertaking.  Investment opportunities are limited to water management companies that sign on to operate government-owned infrastructure or water treatment solution providers. Water supply to the north has inched further into the commercial realm.  A discussion of water investment would not be completed without a look at private water suppliers in the...

Hydroelectric stocks are publicly traded companies whose business involves converting the energy of falling water into electricity. This list was last updated on 11/20/2020. Andritz AG (ADRZF,ANDR.VI) Brookfield Renewable Energy Partners (BEP) Contact Energy Limited (CEN.NZ, COENF) Genesis Energy (GNE.NZ) Innergex Renewable Energy Inc. (INE.TO, INGXF) Iniziative Bresciane S.p.A. (IB.MI) Companhia Energética de Minas Gerais (CIG) Mercury NZ Limited (MCY.NZ) Meridian Energy (MEL.NZ) National Hydro Power Corporation (NHPC.NSE) National Thermal Power Corporation (NTPC.NSE) Reservoir Capital Corp. (REO.CN. RSERF) RusHydro (HYDR.L, RSHYY) Satluj Jal Vidyut Nigam Limited (SJVN.NSE) Trustpower (TPW.NZ) Verbund, AG (VER.VI, OEZVY) If you know of any hydroelectric stock that is not listed here and should be, please let us know by leaving a comment. Also for...

This article was last updated on 12/20/2022. Inverter stocks are publicly traded companies that manufacture or are suppliers to companies whose products, called inverters, convert power from direct current (DC) to alternating current (AC).  Inverters are used to allow power from solar, wind, and batteries to feed the electric grid.  They are also included in the list of electric grid stocks. Advanced Energy Industries (AEIS) Darfon Electronics Corporation (8163.TW) Enphase Energy, Inc. (ENPH) Hoymiles Power Electronics Inc. (688032.SS) Schneider Electric (SU.PA, SBGSF, SBGSY) SMA Solar Technology (S92.DE) SolarEdge (SEDG) If you know of any inverter stock that is not listed here and should be, please let us know by...

Pollution control stocks are publicly traded companies whose business involves technologies for removing or reducing the emissions of harmful pollutants, contaminants, and/or waste from human activity, or removing these pollutants from the environment or water. This article was last updated on 6/25/2020. Advanced Emissions Solutions, Inc. (ADES) Advanced Disposal Services (ADSW) Babcock & Wilcox Enterprises, Inc. (BW) Bion Environmental Technologies (BNET) Biorem Inc. (BRM.V, BIRMF) Casella Waste Systems (CWST) CECO Environmental Corp. (CECE) CDTi Advanced Materials, Inc. (CDTI) Clearsign Combustion Corp. (CLIR) CO2 Solutions, Inc. (CST.V, COSLF) Donaldson Company, Inc. (DCI) Ecolab, Inc. (ECL) EcoSphere Technologies, Inc. (ESPH) Euro Tech Holdings (CLWT) Fuel Tech (FTEK) iPath Global Carbon ETN (GRN) OriginClear (OCLN) Pacific Green Technologies Inc. (PGTK) Republic Services,...

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....

Alternative energy power production stocks are companies whose main business is the production and sale of electricity from alternative energy installations, such as solar farms, wind farms, hydroelectric generators, geothermal plants, cogeneration facilities, and nuclear plants. This list was last updated on 9/11/2020. 7C Solarparken AG (HRPK.DE) Acciona, S.A. (ANA.MC, ACXIF) Atlantica Yield plc (AY) Algonquin Power & Utilities Corp. (AQN, AQN.TO) Avangrid, Inc. (AGR) Bluefield Solar Income Fund Ltd. (BSIF.L) Boralex (BLX.TO, BRLXF) Brookfield Renewable Partners L.P. (BEP) Capital Stage AG (CAP.DE) Edisun Power Europe AG (ESUN.SW) Elecnor, S.A. (ENO.MI) Foresight Solar Fund plc (FSFL.L) Global X YieldCo ETF (YLCO) Greencoat UK Wind PLC (UKW.L) Innergex Renewable Energy Inc. (INE.TO,INGXF) John Laing Environmental Assets Group Limited...

Biiofuel stocks are publicly traded companies whose business involves transportation fuels or any other form of liquid fuel made from plant or animal feedstocks (also called biomass).  Included (but listed separately) are ethanol and biodiesel stocks. Algae-Tec, Ltd. (ALGXY) Amyris, Inc. (AMRS) Andersons Inc (ANDE) Archer Daniels Midland (ADM) Calyx Bio-Ventures Inc. (CLX.V) Ceres, Inc. (CERE) Codexis, Inc. (CDXS) Dyadic International (DYAI) Dynamotive Energy Systems (DYMTF) Gevo, Inc. (GEVO) Green Earth Technologies (GETG) GreenHunter Energy (GRH) Greenshift Corporation (GERS) Metabolix, Inc. (MBLX) Neste Oil (NEF.F,NESTE.HE,NTOIY,NTOIF) Novozymes (NVZMY) Rentech (RTK) Viral Genetics, Inc. (VRAL) If you know of any biofuel stock that is not listed here or in the lists of ethanol or biodiesel stocks, and should be, please let...

Waste-to-energy stocks are publicly traded companies whose business involves using municipal or other waste as a feedstock to create fuel or electricity.  Organic matter and plastics in a waste stream can be converted to fuel and/or electricity chemically, by means of pyrolysis, biologically such as in anaerobic digestion, or by incineration.  Alternatively, energy from waste can be captured from natural processes, such as in the collection of methane gas from landfills. This list was last updated on 6/23/2021 Active Energy Group PLC (AEG.L) Attis Industries, Inc. (ATIS) Babcock & Wilcox Enterprises, Inc. (BW) BioHiTech Global, Inc. (BHTG) Blue Sphere (BLSP) Capstone Microturbine (CPST) China Recycling Energy Corp....