Some wonder if it is possible to have an investment portfolio that profitably invests in green energy stocks. Green energy production is expected to be a multi-billion dollar industry by the year 2013, so the time is now to look to investing in green energy stocks to hold for long term growth.
The most recently developed wind-turbine technologies have permitted wind-generated energy that is more cost efficient as well as more widespread. More state-of-the-art wind energy technologies are usually more market competitive against conventional energy technologies, and they aren’t bird murderers either! Wind energy production is a growing green energy technology, and companies engaged in it would make up an excellent part of a growth or aggressive growth portfolio.
More green energy to invest in comes by way of the solar cell, or photovoltaic cell, technologies. These are to be found all over the place including in pocket calculators, private property lights, United States Coast Guard buoys, and many other areas. Increasingly they find their way onto the roofs of houses and commercial buildings and building complexes while their prices fall. Their energy efficiency (the ratio of the amount of work needed to cause their energy production versus the energy produced ) is steadily on the rise. For instance, the conversion efficiency of silicon cells has increased from a paltry four percent in 1982 to over 20% for the latest silicon cells. Photovoltaic cells create no pollution at all while they are generating electrical power. But, photovoltaic cells are not presently as cost effective as “utility generated” electricity. PV cells are not capable to produce industrial levels of electricity due to their present constraints on space. But, areas where photovoltaic cell arrays might be implemented are increasingly becoming available. In sum, costs are going down while effectiveness is going up for this green technology and it’s something to look into for the savvy investor.
A lot of green energy investment portfolio advisors are quite sure that green energies derived from currents, tidal movement, and temperature differentials are in position to become new and predominant forms of green energy. France has become fairly advanced at hydro-power generation, and a lot of studies are being made in Scotland and the United States along these sames lines. Some concerns center around the difficulties with the deterioration that happens to metals in salt water, marine growth like barnacles, and violent storms that have created disruptions to energy production in the past. But, these conflicts for the most part seem to be solved through the use of better materials. Ocean-generated energy has an enormous advantage because the timing of ocean currents and waves are well understood and we know that they are reliable.
Investments in hydro-electric technology have escalated quite a lot in the last 20 years. Hydro-electric power is clean and green; but, it’s also constrained by geography. Although already prominent as power generation, the big old dams have had difficulties with disturbing marine life. Improvements have been made on those dams so as to protect the marine life, but the improvements have proved costly. As a result, more attention is now being paid to low-impact “run-of-the-river” hydro-power plants. Investment in companies who implement their development would be advised.