Norms Green Energy

Posts Tagged ‘Solar Energy’

what type of engineer is responsible in creating green technology and solar energy?

MECHANICAL ENGINEER

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I need a few examples of alternative energy and what it is.

Alternative energy is a term that refers to methods of generating energy that are not the usual method (i.e. fossil fuels). There are many forms of alternative energy, but, as energy is conserved, you have to ask yourself where the energy comes from (and the answer is always "the sun"). You should always be careful when you look at energy forms, because some of them just won’t work – like the idea of putting water in your gas tank that another user has suggested (thermodynamics shows that these ideas won’t work).

The sun undergoes nuclear reactions which result in the release of photons (beams of light that have energy associated with them). Alternative energy forms just capture the energy from the sun in different ways (actually, fossil fuels also got their energy from the sun a long time ago).

Here are a few alternative energy sources and how they relate to the sun:

Bio-fuels: We can grow plants (such as algae, corn, sugar cane) which collect the photons from the sun and use the energy in the photons to create sugars. We can harvest those sugars and and turn them into liquid fuels such as ethanol.

Solar Energy: This technology directly harnesses the energy of the sun by absorbing photons through photovoltaic solar cells and which create an electrical current when they absorb a photon. Additionally, you can use the energy of the sun to thermally heat an object, which is referred to as solar-thermal energy.

Wind Energy: When the photons from the sun hit the air in the atmosphere, that energy can cause the generation of wind. We can harvest the wind energy by using turbines which spin when the wind hits them. The spinning motion is used to turn a generator which produces electricity.

Hydro-electric: When the sun hits water, it can cause the water to turn into a gas and later that gas can result in rain. If the rain occurs at a high enough elevation and gets held behind a dam, the water now possesses a high potential energy due to the energy from the sun. That energy can be turned into electrical energy by converting the potential energy of the water into kinetic energy which is then used to turn a turbine in a hydroelectric dam.

I came accross a new, proven and tested home made wind power system and solar power system which eliminates our electricity bills. It was written by a renewable energy enthusiasts Michael Harvey the diy called Earth4energy. You can get your copy to save energy and help environment while eliminating your power bills. Get it from here: http://homemadeenergyreviews.blogspot.com/

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People around the world are using it, I’ve ridden the clean quiet green public transit systems,
I’ve seen the windmills, ridden the bike lanes, etc. I’ve showered with the solar shower, turned on the lights and watched TV on the web with it too. And it wasn’t expensive.
Conservatives are against it, and they say it’s just too expensive.
Should I believe them? Is it wrong to believe my own eyes and ears?

I live in a country where we have a lot of green solar and wind energy.

people don’t support it because they don’t make as much money from it as eventually you can have your own solar and wind turbine so you don’t have to buy it from electrico grids.

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Earth4Energy is a guide on how to build homemade power systems, including a DIY solar power system, a DIY wind power system, and making your own bio diesel. This in depth Earth4Energy Review takes you through the membership system showing you the products you get when you sign up. Also read a full review at http://www.renewable-energy-expert.com/earth4energy-review-by-author-michael-harvey.php

Duration : 0:7:0

Read the rest of this entry »

Technorati Tags: Bio Diesel, diy solar power, diy wind power, Earth4Energy, Earth4Energy Review, green energy, homemade power, Solar Energy, Wind Energy

Is it better or worse than majority of the other alternative energy sources? If so why?

It is actually a nice form of energy. Unfortunately it has a few negatives
1: Only available during the day (unless power produced goes to storage)
2: Only produces full power on sunny days
3: Requires a large array to supply decent amount of power, requiring larger area for the array.
4: Storage facility (so you have power at night) requires space and maintenance.

This is where wind is claimed to be better but if the wind dies the generator stops, but if wind it operates day, night, cloudy or rain and usually at night puts power back into the grid and can do so during the day while you’re at work.

Solar is great for low power demand items like lights (you can now get a variety of low power lighting systems) and chargers for cell phones and other devices. To run larger devices you need a large array and power converters and a power storage (batteries) with enough capacity to supply the demands of your devices. The whole system can be quite expensive but yes in the long run could save you money. Note that storage devices require weekly maintenance and checking for problems as they die after a few years so you have to replace them.

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