"Green" mining investments?

Mining is one segment of my “green” investing strategy with which some might not agree. I would argue that mining is absolutely essential to most “green” technologies, including wind power, solar power, super-conductivity, advanced battery designs, highly efficient LED lighting and smart-grid just for a start. Without the metals and other diverse elements supplied by the mining companies of the world, modern electronics and “green” technologies would not exist. Silver and gold, copper and iron have always been important to the electronics industry. Just as important to modern semiconductors are the “rare earth” elements.

The rare earth elements are not really rare but are quite common and well distributed in the earth’s crust. They are, however, fairly difficult to purify into usable form. The rare earth group consists of 17 elements mostly in the lanthanide series of the periodic table. They most commonly occur in nature as oxides and are often intermixed at the same location. Highly-concentrated deposits suitable for mining operations are well distributed around the planet.

The problem today is China’s domination of rare earth mining and production. China now produces over 97% of commercially used rare earth elements. This situation came about because Chinese production was cheap and rare earth elements were an excellent export commodity. The rise of the native Chinese electronics industry increased domestic demand for rare earths. China is in the process of stopping export of these essential elements.

The need for more locally produced rare earth elements is putting a spotlight on mining and refining companies capable of replacing Chinese supply. There is no shortage of these companies and most of them are quite “cheap”. When the major electronics producers start feeling the pinch of reduced Chinese rare earth export policy these mining companies are in a position to see rapid, long term growth and share-price increases. A few of the companies I watch most closely are Great Western Minerals Group(GWMGF), Avalon Rare Metals(AVARF) and Sociedad Quimica Y Minera(SQM).

Let me reinforce the importance of the rare earth elements to “green” technology. These elements are used in almost all semiconductors including photovoltaic and PETE(photon enhanced thermal emission) cells. Rare earths are absolutely necessary for the strong magnets needed for efficient wind power and hydroelectric generation. Low-temperature superconductors require rare earth elements. LED lighting depends on rare earths. Many lasers, high-refractive-index glass formulations, colors for phosphors and LED’s and glass, fluorescent lamp bulbs, ceramic capacitors and portable x-ray machines all depend on rare earth elements.

My view is rare earth mining and production companies outside of China are a great short- and long-term investment. They should do nothing but continue to increase in value and share price(unless bought by a larger or wealthier competitor). Our part as “green” investors is to push them as hard as we can to make their mining and production operations as “green” as possible. It is also our responsibility to push the EPA and all other responsible government bodies with oversight authority to do their duty and ensure all rules and regulations are followed.

Why invest in "green" companies?

I feel quite strongly that we all need to be conscious of how we treat the planet we call home. Pollution is making breathing the air and drinking the water dangerous to our health. Modern “big agriculture”, using antibiotics and hormones as staple ingredients of animal feed, has made eating a pork chop or a chicken breast the equivalent of taking a prescription drug(no prescription needed). The systematic use of chemical fertilizers and pesticides in the fields has done the same for commercial vegetable and grain crops. All of these chemicals, along with all of the OTC and prescription drugs and vitamins that pass through everyone’s toilets, go on to become part of our drinking water supply.

This is why I think it is important for everyone who invests in the stock market to take a long, hard look at “green” investing. Companies that are trying to minimize the damage done to the earth deserve to be supported. It is not a hardship: there are thousands of publicly trades companies on the U.S. stock exchanges involved in the “green” movement. Plenty of diversity can found and more companies are turning up every day.

I take a fairly wide-angle view of what is “green”. My current watch list of companies that I will invest in numbers slightly over 200 and grows daily as I discover new opportunities. Industries on my list include: batteries, solar energy, wind energy, geothermal energy, water power, wave power, electric vehicles, fuel cells, kinetic energy storage(flywheels), smart grid, LED lighting, rare earth mineral mining(necessary for semiconductors), wireless network & storage(necessary to smart grid), water treatment/recovery/efficiency, ocean transport(more efficient than flying), organic/sustainable agriculture, green packaging and a few more. There are also many tech companies that supply needed components to solar, wind, water and other industries. I also list cleaner, more efficient current technologies such as internal combustion engines designed to run on natural gas or natural gas turbine engines designed for vehicle use.

Many of these “green” technologies have been lagging the general stock market. This is not because the companies involved have bad management, or lack sales revenues or solid profits, or do not have ample opportunity for future expansion. The reason their stock prices are lagging is because people do not yet believe in them enough to put their money into company stock. This needs to change. If we believe in the products we need to believe in the companies making the products.

The situation seems to just be reaching a tipping point. As word of China’s stranglehold on rare-earth mineral production reaches a greater audience, previously little-known companies like Avalon Rare Metal Inc. and Great Western Minerals Group are seeing more interest and slow, steady share price increases. A123 Systems Inc., a maker of lithium-ion rechargeable batteries, announced the opening of a new production plant in Livonia, Michigan dedicated to batteries for electric vehicles and the $7.36/share stock shot up $0.65/share in one day. When Westport Innovations, designers of natural gas conversions for commercial diesel engines, signed a partnership agreement with Cummins to build heavy truck and equipment engines their shares saw a substantial and maintained price increase.

“Green” companies are the wave of the future. The writing is on the wall and there is really no choice. Companies like Walmart are using hydrogen and fuel cell fork lifts and more-efficient semi’s and Frito Lay is using an electric truck delivery fleet in New York City and the U.S. military is installing solar and wind power on its bases. The only real question is: how long will you wait before investing in these companies? Why not get in now while there is maximum upside and the support will make a real difference to the company? I invest every dollar with the intention of that dollar making me more money and it is certainly possible to do that within the “green” sphere of companies.

These are exciting times in the world of batteries

Batteries play a major and very under-rated role in our everyday lives. With many “green” technologies dependent on battery power storage(think electric cars and reliable, on-demand supply to the grid from wind and solar power installations) the importance of batteries will only grow. These are the reasons I am bullish on battery stocks even though the general market seems to be taking a much more wait-and-see approach.

Some of the companies that I invest in on my current watch list involved in battery production include Advanced Battery Technology(ABAT), Braskem SA(BAK), Valence Technology(VLNC), Ener1(HEV) and A123 Systems(AONE). I usually own shares in at least one of these companies. These companies cover a range from traditional lead-acid batteries to ever-more-common lithium-ion batteries to cutting-edge research on totally new power storage solutions. All of these technologies will play a big role in the coming years.

One exciting recent discovery took place at MIT. A common virus was used as a bio-template for preparing lithium ion battery anodes and cathodes in plain water at room temperature. Batteries produced this way could be made into any shape, including woven into fabrics. Imagine wearing a rechargeable vest that could power a laptop and smart-phone. This technology would also allow the outer casing of a camera or phone to double as the battery. The process eliminates the need for high temperatures and noxious chemicals during the battery manufacturing contest and the batteries stay much cooler during use, reducing the chances of fires(remember those laptops bursting into flames?).

Philadelphia is about to start a project with a novel use of batteries – subway stops will be equipped with high-capacity batteries(1-1.5MW) to capture electrical power produced by the brakes of the trains approaching the stations. The power stored in the batteries will then be reused to accelerate the trains as they leave. The new system is expected to save the city a considerable amount on its power bill and might even be able to feed some power back into the grid. The Pennsylvania Energy Development Authority has awarded a $900,000 grant to Viridity Energy to construct the system. It is expected to be in use by next spring.

Xcel Energy is already using a bank of sulfur/sodium batteries from NGK Insulators of Japan to smooth out the supply of electricity from an 11MW Minnesota wind farm. The batteries can store 7.2MW-hours of power. They are the size of two semi trailers and weigh 80 tons. Price of the batteries was $4-million. Xcel is planning to test a similar battery bank with a large solar array near the Denver airport.

The military takes the lead in renewable energy

The federal government, via the Department of Defense, is finally taking the lead in renewable energy. This will speed the “mainstreaming” of renewable energy technology. Action is taking the place of words and minor financial incentives at long last. More private-sector jobs are an important added bonus. The military obviously sees the immediate need to break its long dependence on oil(mostly imported from not-always-friendly countries). Hopefully this will help Congress and the Senate see the light and speed the country as a whole in this direction.

Sunpower Corp.(SPWRA) has signed contracts with the General Services Administration, the National Renewable Energy Laboratory, the U.S. Air Force and the U.S. Navy. New solar power installations for these government agencies will comprise a minimum of 20MW. Sunpower estimates creation of 1,000 new local construction jobs. Locations are in the west and mid-west, in Colorado, Indiana and Arizona and are expected to start producing power next summer. The U.S. Marines are also getting into solar power with suitcase-sized installations for field use.

Wind power is also in the picture. The U.S. Coast Guard installed a 2.4MW wind turbine at its Southwest Harbor Base in Maine. The Coast Guard is shooting for a zero-carbon footprint for housing at this base and also installed solar panels and solar hot water heaters. This closely follows the U.S. Army’s first wind project at the Toole Army Depot in Utah.

The Army has so far been focusing on geothermal energy production. The Air Force is moving forward on renewable biofuels for its aircraft.

A new way to harvest solar energy

A new and much more efficient way to convert solar energy into electricity has been discovered. The process is called Photon Enhanced Thermionic Emission(PETE). PETE could double or even triple the current efficiency of photovoltaic conversion by also taking advantage of the heat that usually goes to waste. Another plus is that PETE becomes more efficient at high temperatures while current photovoltaic technology becomes less efficient at increasing temperatures.

PETE is achieved by coating the photovoltaic semiconductor material with a thin layer of cesium. Research continues on which semiconductor materials work best for this process. PETE seems to work well at temperatures as high as 800C. The added efficiency over current photovoltaic materials could finally make solar price-competitive with oil. The new process uses already-existing and easily available materials and has been tested in southern California's Mojave Desert.

The research is being done by a joint venture of Stanford and SLAC National Accelerator Laboratory. The work is funded by the Defense Advanced Research Projects Agency and the Department of Energy. The original paper was published in Nature Materials after a success
ful demonstration of PETE.

photo courtesy of: freephoto.com

My Personal Investing Strategy Ingredients

I have overhauled my stock investing strategy and portfolio to better reflect my environmental and political beliefs and the realities of the current investing market. Investing in what you know and are comfortable with, I still strongly believe, is the way to success. I know the technology and energy sectors and environmental science issues. Intense self education let me shift from my former “buy & hold good undervalued companies” to my current “buy when it’s down and take reasonable profits before it goes farther down”.

Converting the portfolio is an interesting and ongoing process. I developed a list of several hundred companies that fit my criteria. These companies are directly or peripherally involved with: solar power, wind power, geothermal power, “next-generation” nuclear power, fuel cells, batteries, flywheel energy storage, electric vehicles, hydrogen/natural gas vehicles, smart grid, organic agriculture, sustainable aquaculture, water treatment and supply, waste management, and a variety of other earth-friendly fields. There are plenty of companies to choose from in all of the above listed areas. These companies are diversified enough to not leave me vulnerable to a crash of one market sector. These are definitely growth industries on a global scale and are also geographically diversified.

Converting the investing strategy is more difficult, but it is obvious to me that the days of buying shares of a good company at a bargain price and knowing that they would be worth much more in five or ten years is a thing of the past. This is very much a mental adjustment for me. In today’s stock market investors must be light on their feet. Investors must keep well informed about business/investing and larger global issues. Investors, to be successful, cannot become emotionally attached to the companies in which they are investing.

I am benefiting from these changes. I feel good investing in companies that improve the situation for everyone. I am more confident and more successful for specializing in the “green” niche: I can know the companies in greater depth, have a better “feel” of the business issues involved and better see things in context. I was formerly a generalist but now understand the advantages of being more specialized as an investor.

Eco-friendly straw bale house construction

A lot is heard lately about “green” home construction and houses that are “eco-friendly”. Most of the homes in question use conventional frame construction with more insulation, more efficient electrical appliances and low-flow water fixtures. Truly earth friendly house construction goes well beyond these measures.


A popular “green” construction method in the western US is the straw bale house. This technique is starting to gain popularity across the country and worldwide because of its ease of construction and use of an agricultural waste material. More states and cities are adding straw bale construction codes every year.


Straw bales used for home construction must have less than 20% moisture content and be tightly compacted(they should not bend if lifted by one string). This also makes the bales quite fire resistant, as they contain little oxygen, especially after being encased in plaster and/or stucco. A bale home has approximately three times the thermal insulation of a conventional frame home. Sound insulation is also much better that with typical frame construction. Another advantage of straw being a natural material is no off-gassing, which can be a problem with many insulating materials for sensitive people.


People often wonder about the durability of straw bale structures. Because they are encased in waterproof stucco on the outside and “breathable” plaster on the interior, the bales are fully protected from water and do not rot. The highly compacted bales have low oxygen content and are much more fire resistant than conventional construction. Bale homes survive well in high-wind and earthquake zones. Many straw bale homes from the 1800’s are still standing in Nebraska and Europe.


Many resources are available to learn about straw bale home construction on-line. Many books have been published on the subject as well. Straw is an agricultural waste product in many parts of the world and is often burned, adding to the greenhouse gas problem. More bale-friendly building codes could help both the earth and home owners.