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Further information on power production see: Thorium-based nuclear power Thorium is a fissionable material for possible future use in a thorium-based reactor. The public can buy shares of alternative energy companies from various stock markets, with wildly volatile returns. The recent IPO of SolarCity demonstrates the nascent nature of this sector- within a few weeks, it already had achieved the second highest market cap within the alternative energy sector.
Alternative energy sources which are renewable and have lower carbon emissions than fossil fuels are hydropower, wind energy, solar energy, geothermal energy, and bio fuels.
Each of these four segments involve very different technologies and investment concerns. For example, photovoltaic solar energy is based on semiconductor processing and accordingly, benefits from steep cost reductions similar to those realized in the microprocessor industry i.
PV solar energy is perhaps the only energy technology whose electricity generation cost could be reduced by half or more over the next five years. Better and more efficient manufacturing process and new technology such as advanced thin film solar cell is a good example of that helps to reduce industry cost.
In contrast, because wind power has been harnessed for over years, its underlying technology is relatively stable. Its economics are largely determined by siting e.
Because current wind turbines are often in excess of meters high, logistics and a global manufacturing platform are major sources of competitive advantage. These issues and others were explored in a research report by Sanford Bernstein.
In response, many smaller companies have rapidly increased research and development into radically different ways of powering consumer vehicles. Hybrid and battery electric vehicles are commercially available and are gaining wider industry and consumer acceptance worldwide.
First there must be increased understanding of how alternative energies are beneficial; secondly the availability components for these systems must increase; and lastly the pay-back period must be decreased.
These vehicles depend on investment in home and public charging infrastructure, as well as implementing much more alternative energy for future transportation. This research spans several areas of focus across the alternative energy spectrum.
Most of the research is targeted at improving efficiency and increasing overall energy yields. Additionally, their use also dispenses with the trade-off that has existed between environmental conservation and economic growth.
Mechanical energy[ edit ] Mechanical energy associated with human activities such as blood circulation, respiration, walking, typing and running, is ubiquitous but usually wasted.
It has attracted tremendous attention from researchers around the globe to find methods to scavenge such mechanical energies. The best solution currently is to use piezoelectric materials, which can generate flow of electrons when deformed.
Various devices using piezoelectric materials have been built to scavenge mechanical energy. Considering that the piezoelectric constant of the material plays a critical role in the overall performance of a piezoelectric device, one critical research direction to improve device efficiency is to find new material of large piezoelectric response.
Lead Magnesium Niobate-Lead Titanate PMN-PT is a next-generation piezoelectric material with super high piezoelectric constant when ideal composition and orientation are obtained.
InPMN-PT Nanowires with a very high piezoelectric constant were fabricated by a hydro-thermal approach  and then assembled into an energy-harvesting device . The record-high piezoelectric constant was further improved by the fabrication of a single-crystal PMN-PT nanobelt,  which was then used as the essential building block for a piezoelectric nanogenerator.
Solar energy Solar energy can be used for heatingcooling or electrical power generation using the sun. Solar heat has long been employed in passively and actively heated buildings, as well as district heating systems.
Inresearchers at Massachusetts Institute of Technology MIT developed a method to store solar energy by using it to produce hydrogen fuel from water. The Zhangebei National Wind and Solar Energy Storage and Transmission Demonstration Project northwest of Beijing, uses batteries to store 71 MWh, integrating wind and solar energy on the grid with frequency and voltage regulation.
The company claims that the prototype converts Wind power Wind energy research dates back several decades to the s when NASA developed an analytical model to predict wind turbine power generation during high winds.Mar 11, · The essay was supposed to be about the topic 'alternative sources of energy' and not about the topics included in alternative sources of energy (I am not such a good orator).
It's the same everywhere but since this is a blogspot and termed as 'My Essays', I thought of mentioning it.
thesis essay example environmental ethics essay Thesis alternative energy sources as the main academic writing of thesis english definition. Creating, seeking approval for, and understanding that thesis alternative energy sources there is a corpus are morphosyntactically ambiguous (derose, 31).
- Alternative Renewable Energy “Windmills” Renewable energy is an alternative to fossil fuels and nuclear power, and was commonly called alternative energy in the s and s. Scientists have advanced a plan to power % of the world's energy with wind, hydroelectric, and solar power by the year Alternative Sources of Energy Essay Words 4 Pages As the population continues to increase day after day, so does the demand for oil and other natural resources.
Feb 28, · Alternative Energy Sources Essay; Alternative Energy Sources Essay. ESSAY ON ALTERNATIVE SOURCES OF ENERGY The law of conservation says that energy is neither created nor destroyed.
When we use energy, it doesn’t disappear. the standard scientific definition of energy is the capacity to do work, which means ability .
Alternative energy is any energy source that is an alternative to fossil fuel. These alternatives are intended to address concerns about fossil fuels, such as its high carbon dioxide emissions, an important factor in global warming.