solar power on the rise
In a place like the sun
California\'s energy, once languishing on the edge of the economy, now opens up a thriving niche among consumers, hampered by the threat of high electricity prices and power outages.
\"As the US energy problem increases, it becomes more and more mainstream,\" said John Thornton, chief engineer at the Golden State Renewable Energy Laboratory in Colorado.
The sales of solar equipment have brought an impact on the situation.
Trend News Democratic debate \"heartbeat\" bill litigation family planning interview capital a violation of domestic shipments of photovoltaic cells increased 74% in two years
According to the federal Department of Energy, the annual period as of 2000.
These devices are sufficient to generate at least 75 megawatts of electricity during peak hours of use.
A megawatt can power 750 homes.
The Department of Energy expects total power generation to reach 3,200 MW by 2020.
At the same time, prices of these batteries continue to fall;
They only spent 20% of what they did 25 years ago.
For more than 20 years, the roof system that has been able to meet the power needs of half of households now costs only $10,000, and both the federal and state governments have tax rebates and tax credits.
\"You\'re talking about five. to six-
California\'s annual returns are much wider than those of 20 years a few years ago, \"said David R.
Lillington, president of Sylmar-
Spectrolab, solar cell manufacturer, United States of America
Dan Kamman, a professor at the Energy and Resources Group at the University of California, Berkeley, said that this is the first time the solar system is economically reasonable.
\"Before, environmental protection was just a good idea,\" he said . \"
When exposed to sunlight, photovoltaic cells generate electricity, and some of the energy is absorbed by semiconductor materials such as silicon.
These electrons impact loose electrons so that they travel through the material.
The current can then be output as a power supply.
When electricity demand and wholesale prices of electricity often soar on hot, sunny days, PV production peaks.
But even today, 30 years after these batteries are offered commercially for the first time, photovoltaic systems still generate less power at a higher cost than all other important means of generating electricity.
Solar energy contributes only 0.
02% of the country\'s total power grid.
Even the cheapest, it costs 20 cents per kilowatt.
The amount of electricity generated per hour is about four times the average amount of electricity generated by fossil fuels or nuclear fuels.
This makes the big
Factories of scale are not feasible, experts say.
Jayne Brady said: \"From the perspective of power utilities, it is being developed and is being used, but in order to be more useful, technical costs must be reduced by a spokeswoman for Washington, D. C. C. -
Edison Electric Research Institute, headquartered in shareholders-Own utility
For individual homeowners like Karina Garbesi, assistant professor of geography and environmental studies at California State University Hayward, roof panels can be an attractive option.
The system at the top of her Bay Area residence often generates excess electricity and she can sell it to her utility company.
\"My meter is behind by day,\" Garbesi said . \".
In the housing development under construction in places such as San Diego and Sacramento, solar panels have now become the standard for some new homes, and their costs have been included in the sales price.
\"We see more applications of photovoltaic in new buildings,\" said Joe Wiehagen, an engineer at the National Institute of Home Builders Research Center in Maryland.
\"It may be a little cheaper in a new house and you don\'t have to worry about putting it into a mortgage because it\'s already there.
\"Subsidies also reduce the cost of capital for the system.
Headquarters in Los Angeles, Neutrogena
The official recently installed 200-
Senaka Nanayakkara, director of facilities at the cosmetics company, said that the KW system should reduce the electricity purchased by the company by 20%.
The Los Angeles Water and Power Department raised $1 million of the system\'s $1.
4 million price tag as part of a plan to increase the solar system equivalent to 100,000 residential roofs by 2010.
Similar subsidies should continue to push down prices to prevent the solar industry from collapsing as it did in the 1980 s, when fossil fuel prices fell and interest in emerging alternative energy weakened.
\"We can still screw it up.
\"Yank price support, you can drive the industry out,\" Garbesi said . \".
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