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admin 08.05.2014

The productions of solar photovoltaic cells are similar to semiconductors and enjoy cost reduction as production increases. Our analysis attempts to develop a what-if scenario for the solar energy market by comparing energy costs for different experience curves and market growth rates. The bottom line is that as solar energy reaches parity with hydrocarbon fuels, energy security is achieved for all countries. Don’t obstruct radiators with furniture or desks as this reduces the amount of heat they let out therefore it takes longer for the room to heat up. Limit the use of portable electric heaters as these are really expensive to run, only use them in emergencies.
Make sure you service your boiler regularly as a poorly maintained boiler can increase heating costs by 30% or more.
Try reducing the brightness of lights in the office or in places that are not used as often such as corridors. Switch off all electrical equipment including computers, printers and coffee machines at nights and weekends. Make sure to turn off computer monitors when they are not in use for instance when you are away at lunch or in a meeting. Is the person who normally drinks coffee in the office on holiday? Switching off the machine reduces electricity costs. In comparison to conventional hydrocarbon fuels such as coal or oil in generating electricity, the cost of solar energy is significantly higher. In our example, a ton of coal on the average produces approximately 6,182 KWH of electric at a cost of about $36 per short ton (2,000 pounds). In comparison to solar energy, the hydrocarbon fuel costs are significantly lower without rebates, tax benefits nor the cost of carbon emissions. Some of the considerations for a solar energy system include the 20-to-30 year lifespan of the system and the hours of available sunlight. In order to compare the solar energy costs to conventional hydrocarbon fuels, we must covert the $8.95 per into KWH.
So a $45,000 5KW solar energy system produces about 119,246 KWH of electric over its lifespan meaning the average cost equals $0.38 per KWH.
The relatively high solar energy costs in comparison to conventional fuels should improve with utility rebates and government tax incentives.


We will explore the some of the advances in thin-film technologies, the declining costs of solar panels, and the improving solar conversion efficiencies that should continue to bring solar energy costs on par with hydrocarbon fuels. I would like kindly ask the cost of solar energy for desalination and and energy generation and the area to be allocated per 0ne MWH solar energy generation. I have a 3k system on my roof and it produces annually between 4,700 and 4,900 kwh of electricity, so your calculations are clearly understating the kwh generation of better systems on well-oriented roofs (my panels are Suntech). But let’s assume I get 25 years at original efficiency and only another 10 years at 90% efficiency. Note that by putting a solar system on my roof I have LOCKED IN the price per kwh of 4.4 cents per watt for the next 40 years. As for the stated price of coal per khw in this article, this is meaningless to a homeowner. Oh, and this return is entirely TAX FREE because it represents a savings of a necessary expense and not interest or dividend income from Mr. The best building way to cut energy costs in buildings is to build an energy-efficient building from the start. Our what-if scenario provides a framework to measure the number of years it will take before solar energy cost are at parity to oil and electric. In the most optimistic scenario of market growth of 60% and experience curve of 30%, suggest that it would take until 2014 or seven years before solar energy is equal to the price of electric.
Also if the heating is switched on make sure all windows and doors are closed to keep in the warmth. Also remember to turn off the heating when the office is vacant a perfect example of this being Christmas break.
Although you don’t really go on to say how good of an investment solar energy actually is, in the long run. You are not considering the cost of pollution and environmental degradation related to fossil fuels (coal, oil and gas) energy. Reducing energy consumption saves us money— and it is the right thing to do for our country and the world. Our assumptions are solar energy market growth rates of 40%-to-60% and experience curve of 10%-to-30%. Buildings suck up 40% of all energy used in America— and account for over 73% of all electricity consumed in the U.S.


Even more appalling, experts estimate 30%-50% of the energy devoured by commercial buildings is wasted energy.
With an outside temperature of 90 degrees Fahrenheit, a white roof is 80 degrees cooler than a black roof. So multiply the cost per KWH number for solar some 2-3 times to get more realistic picture. Unplug battery chargers for phones, tablets, PDA’s, cameras, and other electronics when not in use. CFL bulbs use less electricity, produce the same amount of light, and last up to ten times longer than ordinary bulbs.
Change air conditioning filters monthly— or even more often if the structure is near construction or dusty roads.
Solar at this time is completely lacking any commercial viability for most people and businesses. Set your computer to sleep mode, so that an inactive screen goes dark instead of wasting power with a screen saver. Invest in energy-saving electronics, office equipment, heating and air conditioning systems, and appliances when they need replacing. Add films, low-e glazing, awnings, blinds, or solar window screens to windows to reduce summer heat.
Use more task-specific lighting at workstations, instead of brightly lighting an entire area of workers. Don’t wait until a fluorescent bulb burns out to change it; change all bulbs on a schedule. Seeing how much the strategies you choose cut energy costs will motivate you do even more to slash energy consumption.



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