Green technology (greentech), environmental technology (envirotech), and clean technology (cleantech) are ways to monitor, model and conserve the natural environment and resources. These technologies focus on long- and short-term impact on the environment.
Greentech can be as small as a CFL bulb or as large as BrightSource’s LPT solar thermal system at the Ivanpah Solar Electric Generating System (ISEGS) in California’s Mojave Desert.
Green technology focuses on sustainable development utilizing such methods as photovoltaic and wind turbines. Photovoltaics is the use of solar panels to collect solar radiation which is the converted into direct electrical current using semiconductors that exhibit the photovoltaic effect. Wind turbines convert kinetic energy from the wind into mechanical energy which produces electricity. The difference between a windmill and a wind turbine? Wind turbines produce electricity whereas windmills directly power a machine. A new approach is tidal turbines, which harness the power of the tides. A project off the coast of Maine is attempting to power around 30 homes with underwater turbines, which looks like a whisk turned sideways. A real benefit of these tidal turbines versus wind turbines is that you can't see the submerged tidal turbines. The effect on marine life is still being researched.
Another development in greentech is sustainable housing. Companies are realizing that this is a profitable business model with plenty of demand and are creating “net zero” homes, which are completely self-sufficient. These homes harvest rainwater, create power via photovoltaic cells, and use responsibly sourced materials to reduce or eliminate their carbon footprint. Imagine living in your own brand-new, off-grid home with no utility bills!
A simple green technology is to have houseplants for air purification! Greentech doesn't have to be a huge investment or time-consuming … make a small change each day (adjust your thermostat, turn out lights when you leave the room, plan your errands to maximize fuel efficiency) and you'll be amazed at how quickly those small changes add up to a new, green lifestyle!
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