ENCYCLOPEDIA OF ALTERNATIVE ENERGY AND SUSTAINABLE LIVING. Renewable energy. Intermittent energy source. Wind & Solar. Environmental concerns with electricity generation. The environmental impact of electricity generation is significant because modern society uses large amounts of electrical power.
This power is normally generated at power plants that convert some other kind of energy into electrical power. 5 Myths About Renewable Energy" Solar electricity isn't the only renewable energy whipping boy out there.
Wind power has also taken more than its share of lumps, frequently saddled with a reputation for excessive noise and energy inefficiency. Plus, if some of the rumors are true, wind harvesters of the world have steadily been turning the planet's bird population into an airborne puree of blood and feathers. To be fair, wind turbines do kill birds -- but so do vehicles, skyscrapers, pollution and the introduction of invasive species into their habitats.
Humans have had bird blood on their hands for ages, and as daunting as a field of wind turbines may look, they're responsible for statistically few bird deaths -- less than 1 in every 30,000 [source: U.S.
Yellow numbers are natural fluxes, red are human contributions in billions of tons of carbon per year. White numbers indicate stored carbon. The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Along with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that are key to making the Earth capable of sustaining life; it describes the movement of carbon as it is recycled and reused throughout the biosphere. The global carbon budget is the balance of the exchanges (incomes and losses) of carbon between the carbon reservoirs or between one specific loop (e.g., atmosphere ↔ biosphere) of the carbon cycle.
Relevance for the global climate Main components
Calculating. Magneto Electrics. Main Page - PESWiki. Smart grid. Renewable Energy in situ. Vehicle. Cost of electricity by source. Cost factors While calculating costs, several internal cost factors have to be considered. (Note the use of "costs," which is not the actual selling price, since this can be affected by a variety of factors such as subsidies and taxes):
Blog » Clarity on the true cost of electricity. The question of electricity cost is tricky. Most of us know oil prices go up and down – and are currently at record highs – which in turn affects the power price. And we know that not only to the costs of importing such fuels change constantly, they also – unlike renewables – produce carbon, which has to be paid for. But while more and more people are saying onshore wind energy is at “competitive” price levels, others still insist that renewables are expensive and impractical. In order to clear up the issue , EWEA has developed an online tool that instantly calculates electricity costs, including any fuel and carbon risks, for five different technologies – gas, coal, nuclear, onshore and offshore wind.
The users are free to type in their own assumptions on, for example, coal and gas prices, future carbon costs, capital cost and availability. Try the tool for yourself:
Carbon Sequestration (Storing It) Dirty Energy. Tar Sands. Renewable Energy Used to Make Drinking Water From Air Humidity – Blue Living Ideas. Availability Published on June 18th, 2009 | by Jennifer Lance Scientists have discovered a way to make drinking water from the air’s humidity, even in arid regions.Â The system completely uses renewable energy and could provide water for many applications.
Models have been built and tested in laboratories at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart. Image by hamed saber Scientists can make drinking water from desert air. Even in areas where there is no surface water or plant life, there is still moisture in the air. The process uses thermal solar collectors and photovoltaic cells, so it can function where thereâ€™s no electricity, such as in deserts. Removing the humidity from the air to make drinking water is a unique solution, but I wonder what the meteorological consequences would be to the environment.Â Would it affect precipitation in non-arid regions? About the Author. How Information Can Save Energy. In 2007, an astounding 2.2 million residents of Sydney, Australia turned off their lights in the first ever Earth Hour organized by the World Wildlife Fund (WWF).
Over time, more cities and homes have come to participate in this annual event, conceived by the WWF to increase awareness about climate change and encourage energy efficiency. The Earth Hour is a laudable event to educate ordinary people on energy use. There is still, however, a need to increase information dissemination efforts from merely annual events to a regular part of daily life. In fact, experts say that making energy information as available and accessible as possible will help consumers make informed decisions and thus minimize the risk of irresponsible energy use. This was evidenced by an experimental study on residential electricity consumers conducted by the US National Bureau of Economic Research.
Energy Trees & Teams.