Crystaline Photovoltaics
We may stand guilty of downplaying the future of crystaline photovoltaics. After all, exponential growth is necessary for alternative energy to take over the world, and after all, it is no simple matter to manufacture crystaline photovoltaics. But as amply documented in our post “The Coming Boom in Photovoltaics,” the only thing thing that stops crystaline photovoltaics from experiencing exponential growth is the supply of polysilicon. And the only raw material inputs required to manufacture polysilicon is silicon, one of the most abundant materials on earth, and electricity, which photovoltaics produce in abundance.
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| Photo: SunPower |
Along with crystaline photovoltaic cells, which are made from slices of crystal silicon ingots, there are two relative newcomers; ”thin-film” cells that use far less silicon, and concentrators, that use less photovoltaic material (not necessary silicon) but use mirrors, magnifiers, and solar tracking systems to multiply the amount of light, or “suns,” hitting the photovoltaics. There are many ways to evaluate the relative merits of these three fairly distinct technologies that all promise to deliver a product that is commercially competitive to conventional energy.
How much do the systems cost per photovoltaic array - i.e., what are the dollar costs per watt just for the photovoltaic panels? How much do the systems cost per watt once they are installed - including the ”balance of plant” such as the inverter, the wiring, the mounting racks, and of course, the costs to have all of this put in place by skilled technicians? In terms of cost per watt, thin film photovoltaics have achieved manufacturing costs as low as $1.30 per watt (First Solar S-1 Statement 2006). In terms of installed costs, systems with high efficiency have advantages, but then again, there are low efficiency thin film systems that can be unrolled onto a roof like a tarp. In such a scenario, installation is cheap.
How much space do the systems take up - what is their efficiency? Concentrator manufacturers claim their prototypes yield up to 40% efficiency, or about 40 watts per square foot (400 watts per square meter). By contrast thin-film efficiencies range between 5% and somewhat higher than 10%. Crystaline photovoltaics can put out a reliable 15% and some of them can do much more.
When longevity of photovoltaics are taken into account, as well as proven reliability, crystaline photovoltaics are the best photovoltaic technology to-date, and possibly forever. There are crystaline systems that are over 20 years old and still have output at over 80% of their original efficiency. Early thin-film designs have not shown similar durability, although that may have changed. Concentrators are not yet installed in sufficient numbers for meaningful data to have emerged on their longevity.
It appears that thin-film photovoltaics may have the best potential to quickly ramp up manufacturing and make photovoltaic energy a significant contributer to global electricity production. After all, thin-film companies like Nanosolar claim to have a 400 megawatt factory under construction, and Miasole has a 25 megawatt line getting fired up right now, with three more on the way. First Solar’s 40 megawatt plant in Ohio has been operational for over a year now, and they are also on track to vastly increase their capacity.
Meanwhile, crystaline photovoltic technology in 2005 was still responsible for 94% of worldwide photovoltaic production, which was 1.5 gigawatts in that year. So why would we write-off the potential of the crystaline photovoltaic industry to explode? After all, worldwide photovoltaic output only five years earlier was only 300 megawatts, all of it crystaline ingots. Quintupling every five years is not bad growth. SunPower, a premier manufacturer of photovoltaics who have prototype cells that achieve well over 20% efficiency, and who claim they can get the price for crystaline photovoltaics under $1.00 per watt, intend to have their manufacturing capacity over 400 megawatts per year by 2008. Don’t write off crystaline photovoltaic technology just yet.
The photovoltaic industry has been capacity constrained at least since 2001, and will remain capacity constrained well into the foreseeable future. They don’t have to be commercially competitive with conventional energy for this industry to increase in output by at least one order of magnitude, if not more. After all, the five gigawatts of installed photovoltaics in the world represents well under 1% of the world’s supply of electricity. For this reason, no matter how you manage to manufacture photovoltaics, if you can do it you will enjoy high gross profits. Crystalline photovoltaics, with a theoretical maximum efficiency of over 40%, and with a demonstrated history of durability and longevity, are not going to go away.
December 12th, 2006 at 5:41 am
The Energy Revolution
I find that many people are missing the point and are not aware of the pending energy/oil shortage.
The world population is increasing; many countries are advancing to the current technology.
Fossil fuel/energy is being depleted faster than it’s been regenerated.
It is time for the energy revolution.
That means other sources of energy such as: Solar/Photovoltaic, Wind, Geothermal, Hydrogen, Wave/Tidal, Nuclear/Fusion and numerous other sources, not to mention efficiency and conservation. (The use of lake/Ocean water for cooling).
It is time to set the mindset of the people, industry and the government on a crusade to develop and utilize alternative energy on a massive scale.
It will take many decades to reach those goals. But we need a total commitment of funds, research and implementation to reach those goals or we are doomed.
The United States the most economically advanced country in the world must become energy independent, for our sake, our children’s sake and future generations.
It is time to unite in this endeavor of alternative energy, energy efficiency and proceed without the political confrontation. (Europe is advancing faster than the USA)
Jay Draiman
Northridge, CA. 91325
12/12/2006
December 15th, 2006 at 6:58 pm
[...] Original post by EcoWorld The Global Environmental Community Nature… and software by Elliott Back [...]
January 15th, 2007 at 6:41 am
MANDATORY RENEWABLE ENERGY – THE ENERGY EVOLUTION –R9
In order to insure energy and economic independence as well as better economic growth without being blackmailed by foreign countries, our country, the United States of America’s Utilization of Energy sources must change.
“Energy drives our entire economy.” We must protect it. “Let’s face it, without energy the whole economy and economic society we have set up would come to a halt. So you want to have control over such an important resource that you need for your society and your economy.” The American way of life is not negotiable.
Our continued dependence on fossil fuels could and will lead to catastrophic consequences.
The federal, state and local government should implement a mandatory renewable energy installation program for residential and commercial property on new construction and remodeling projects with the use of energy efficient material, mechanical systems, appliances, lighting, etc. The source of energy must by renewable energy such as Solar-Photovoltaic, Geothermal, Wind, Biofuels, etc. including utilizing water from lakes, rivers and oceans to circulate in cooling towers to produce air conditioning and the utilization of proper landscaping to reduce energy consumption.
The implementation of mandatory renewable energy could be done on a gradual scale over the next 10 years. At the end of the 10 year period all construction and energy use in the structures throughout the United States must be 100% powered by renewable energy. (This can be done by amending building code)
In addition, the governments must impose laws, rules and regulations whereby the utility companies must comply with a fair “NET METERING” (the buying of excess generation from the consumer), including the promotion of research and production of “renewable energy technology” with various long term incentives and grants. The various foundations in existence should be used to contribute to this cause.
A mandatory time table should also be established for the automobile industry to gradually produce an automobile powered by renewable energy. The American automobile industry is surely capable of accomplishing this task.
This is a way to expedite our energy independence and economic growth. (This will also create a substantial amount of new jobs). It will take maximum effort and a relentless pursuit of the private, commercial and industrial government sectors commitment to renewable energy – energy generation (wind, solar, hydro, biofuels, geothermal, energy storage (fuel cells, advance batteries), energy infrastructure (management, transmission) and energy efficiency (lighting, sensors, automation, conservation) in order to achieve our energy independence.
“To succeed, you have to believe in something with such a passion that it becomes a reality.”
Jay Draiman, Energy Consultant
Northridge, CA. 91325
1-15-2007
P.S. I have a very deep belief in America’s capabilities. Within the next 10 years we can accomplish our energy independence, if we as a nation truly set our goals to accomplish this.
I happen to believe that we can do it. In another crisis–the one in 1942–President Franklin D. Roosevelt said this country would build 60,000 [50,000] military aircraft. By 1943, production in that program had reached 125,000 aircraft annually. They did it then. We can do it now.
The American people resilience and determination to retain the way of life is unconquerable and we as a nation will succeed in this endeavor of Energy Independence.
Solar energy is the source of all energy on the earth (excepting volcanic geothermal). Wind, wave and fossil fuels all get their energy from the sun. Fossil fuels are only a battery which will eventually run out. The sooner we can exploit all forms of Solar energy (cost effectively or not against dubiously cheap FFs) the better off we will all be. If the battery runs out first, the survivors will all be living like in the 18th century again.
Every new home built should come with a solar package. A 1.5 kW per bedroom is a good rule of thumb. The formula 1.5 X’s 5 hrs per day X’s 30 days will produce about 225 kWh per bedroom monthly. This peak production period will offset 17 to 24 cents per kWh with a potential of $160 per month or about $60,000 over the 30-year mortgage period for a three-bedroom home. It is economically feasible at the current energy price and the interest portion of the loan is deductible. Why not?
Title 24 has been mandated forcing developers to build energy efficient homes. Their bull-headedness put them in that position and now they see that Title 24 works with little added cost. Solar should also be mandated and if the developer designs a home that solar is impossible to do then they should pay an equivalent mitigation fee allowing others to put solar on in place of their negligence.
Installing renewable energy system on your home or business increases the value of the property and provides a marketing advantage.
Nations of the world should unite and join together in a cohesive effort to develop and implement MANDATORY RENEWABLE ENERGY for the sake of humankind and future generations.
February 9th, 2007 at 8:46 am
While some feel that solar PV is too expensive, I consider myself fortunate to be able to install panels on my roof. As utility costs continue to excallate, my panels will be there, producing electricity for me at little or no cost. As a bonus, I’m doing something good for the planet. To encourage others to do the same, I write about my experiences on my blog: http://solarjohn.blogspot.com
John
May 29th, 2007 at 5:42 am
ENERGY INDEPENDENCE – THE ENERGY EVOLUTION –R14
By Jay Draiman, Energy Consultant
In order to insure energy and economic independence as well as better economic growth without being blackmailed by foreign countries, our country, the United States of America’s Utilization of Energy Sources must change.
“Energy drives our entire economy.” We must protect it. “Let’s face it, without energy the whole economy and economic society we have set up would come to a halt. So you want to have control over such an important resource that you need for your society and your economy.” The American way of life is not negotiable. Our continued dependence on fossil fuels could and will lead to catastrophic consequences.
The federal, state and local government should implement a mandatory renewable energy installation program for residential and commercial property on new construction and remodeling projects with the use of energy efficient material, mechanical systems, appliances, lighting, retrofits etc. The source of energy must be by renewable energy such as Solar-Photovoltaic, Geothermal, Wind, Biofuels, Ocean-Tidal, Hydrogen-Fuel Cell etc. This includes the utilizing of water from lakes, rivers and oceans to circulate in cooling towers to produce air conditioning and the utilization of proper landscaping to reduce energy consumption. (Sales tax on renewable energy products and energy efficiency should be reduced or eliminated)
The implementation of mandatory renewable energy could be done on a gradual scale over the next 10 years. At the end of the 10 year period all construction and energy use in the structures throughout the United States must be 100% powered by renewable energy. (This can be done by amending building code)
In addition, the governments must impose laws, rules and regulations whereby the utility companies must comply with a fair “NET METERING” (the buying of excess generation from the consumer at market price), including the promotion of research and production of “renewable energy technology” with various long term incentives and grants. The various foundations in existence should be used to contribute to this cause.
A mandatory time table should also be established for the automobile industry to gradually produce an automobile powered by renewable energy. The American automobile industry is surely capable of accomplishing this task. As an inducement to buy hybrid automobiles (sales tax should be reduced or eliminated on American manufactured automobiles).
This is a way to expedite our energy independence and economic growth. (This will also create a substantial amount of new jobs). It will take maximum effort and a relentless pursuit of the private, commercial and industrial government sectors’ commitment to renewable energy – energy generation (wind, solar, hydro, biofuels, geothermal, energy storage (fuel cells, advance batteries), energy infrastructure (management, transmission) and energy efficiency (lighting, sensors, automation, conservation) (rainwater harvesting, water conservation) (energy and natural resources conservation) in order to achieve our energy independence.
“To succeed, you have to believe in something with such a passion that it becomes a reality.”
Jay Draiman, Energy Consultant
Northridge, CA. 91325
May 30, 2007
June 17th, 2007 at 10:22 pm
AMERICANS INSATIABLE THIRST FOR ENERGY MUST BE MODERATED
By Jay Draiman, Energy Development Specialist
As you know, many serious problems are associated with our insatiable thirst for energy. The reason is simple: To gain the energy we must burn the fuels. The combustion, by the way quite inefficient, causes huge gaseous emissions polluting the air and forming an invisible screen responsible for the famous “green house effect,” i.e., blocking the dissipation of heat and thus causing the feared warming up of our planet, with deadly consequences for nature and man.
There is only a finite amount of oil in the world. Everybody knows this.
Someday, we’ll run out. It will be gone.
Meanwhile, our insatiable thirst for oil — which we burn — has put enormous sums of money into the hands of fanatics who hate us and everything we stand for, and who use that oil money to fund the terrorists who murder Jews and Americans wherever they can.
We can’t burn oil forever, and it’s bad strategy to base our economy on cheap oil when we have to buy at least some of it from our enemies.
Optimists tell us that the free market will eventually deal with the problem. Their theory is that as oil gets harder to extract cheaply, the price will go up; then other forms of energy will become economically attractive and we’ll switch over to them.
Here’s why their optimism is nothing short of suicidal.
First, there’s no guarantee that without intense government-funded research and financial incentives now, the new energy sources will be available in quantities large enough to replace oil when it does run out.
In other words, if we wait until it’s an emergency, our economy could easily crash and burn for lack of energy sources sufficient to drive it.
It’s easy to supply energy for an economy that’s only a tenth the size of the world’s economy today. The question is how many people will die in the resulting chaos and famine, before new free-market equilibrium is established?
Second, how stupid do we have to be to wait until we run out of oil before acting to prevent its waste as a fuel? Petroleum is a vital source of plastics. We could use it for that purpose for hundreds of generations — if we didn’t burn any more of it. But if we wait till we’ve burned all the cheap petroleum, it won’t be just fuel that we have to replace.
Third, market forces don’t do anything for our national defense, our national security. We had a clear warning back in the 1970s with the first oil embargo. What if terrorism in the Middle East specifically targets all oil exports, from many countries?
And even if they keep the oil flowing, why are we pumping money into the pockets of militant extremists who want to destroy us? Why are we subsidizing our enemies, when instead we could be subsidizing the research that might set us free from our addiction to oil?
You notice that I haven’t said anything about polluting the environment. Because this is not an environmental issue.
In the long run, it’s an issue of whether we wish to provide for our children the same kind of prosperity that we’ve luxuriated in as a nation since World War II.
It is foolish optimism bordering on criminal neglect that we continue to think that our future will be all right as long as we find new ways to extract oil from proven reserves.
Instead of extracting it, we ought to be preserving it.
Congress ought to be giving greater incentives and then creating mandates that require hybrid vehicles to predominate within the next five years.
The Chinese contribution to the energy crisis:
The quest for resources. The dynamic Chinese economy, which has averaged 9 percent growth per annum over the last two decades, nearly tripled the country’s GDP, has also resulted in the country having an almost insatiable thirst for oil as well as a need for other natural resources to sustain it. The PRC has been a net importer of petroleum since 1993, and has increasingly relied on African countries as suppliers. As of last year, China was importing approximately 2.6 million barrels per day (bbl/d), which accounts for about half of its consumption; more than 765,000 bbl/d – roughly a third of its imports – came from African sources, especially Sudan, Angola, and Congo (Brazzaville).
To get some perspective on these numbers, consider that one respected energy analyst has calculated that while China’s share of the world oil market is about 8 percent, its share of total growth in demand for oil since 2000 has been 30 percent. The much publicized purchase, in January of this year, of a 45 percent stake in an offshore Nigerian oilfield for $2.27 billion by the state-controlled China National Offshore Oil Corporation (CNOOC) was just the latest in a series of acquisitions dating back to 1993 whereby the three largest Chinese national oil companies – China National Petroleum Corporation (CNPC), China Petroleum and Chemical Corporation (Sinopec), and CNOOC, respectively – have acquired stakes in established African operations.
Our insatiable thirst for Middle East energy is “the oil [that] feeds the fire.”
This idea that we can live in a homogenous cul-de-sac suburban development in our plastic homes driving 50 to 100 miles to work in a 4700lb SUV to our middle management job at Bed Bath and Beyond and expect this way of life to just continue on indefinitely with no consequences represents mind boggling ignorance and negligence towards our future. The “American Dream” is a relic of the Baby Boomer generation and will die with our parents and grandparents. To quote author James Kunstler: “Suburban development in this country represents the single largest misallocation of wealth and resources in the history of the planet.”
So could a 900 acre photovoltaic array power a major metropolitan grid. No, probably not. But the question isn’t how do we squeeze enough energy out of the technology to accommodate our seemingly insatiable thirst for electricity and fuel but rather how do we cut the fat and waste out of our civilization and our lives and actually live WITHIN our environment with some sort of sustainability. There is no one technology that will provide all our solutions. It will have to be a combination of wind turbines, solar and hydroelectric excluding the remote possibility that some new form of energy production (i.e. cold fusion or something equally fantastical) is unleashed on the world by CERN or ET. These power plants will operate primarily at a local level servicing on a much smaller scale than what we here in North America have been so used to in the last 70 or so years.
Perhaps we should ration gasoline, and insist that all cars meet a miles-per-gallon minimum — one higher than many sport utility vehicles, for example, achieve now. The rationing would not be a wartime figure, of course, but a reasonable amount allowed for business and pleasure.
Americans consume the largest portion of gas in the world and cry the loudest about the price.
The government should repeatedly increase the price of gasoline in an effort to slow our country’s insatiable thirst for oil. Utilize the excess profits and taxes to fund research and rebates for renewable efficiency and renewable energy.
Jay Draiman, Energy Analyst – 6/18/2007
July 15th, 2007 at 8:22 am
Homeowners can cut energy bills by making their houses more energy-efficient R2
_________________________________________
By YJ Draiman
HOMEOWNERS can practically hear the meters ticking as their air conditioners fight this summer’s sweltering heat.
But that doesn’t mean there aren’t some things they can do to ward off high energy bills now–and once winter sweeps in.
Just ask THE ENERGY EXPERT, who conducts residential energy audits as National Energy Efficiency Auditor.
“The most common problem is air infiltration,” he said, “where unconditioned air meets conditioned air.”
THE ENERGY EXPERT, who uses smoke pencils to detect leaks and infrared scans to check insulation, windows, attics and roofs, said poorly insulated “room additions” over garages top the list of energy wasters.
“Builders don’t always sheathe the back side of the drywall in insulation, so hot attic air infiltrates the room,” he said. “There’s only one piece of drywall keeping the hot air out.”
THE ENERGY Experts’ solution is to install energy-efficient foam board with an aluminum-foil backing behind the drywall. A recent job cost about $300 and or insulation and attic fans in the attic – there is also a rebate and tax credits (check with your local utility). (Insulation in the attic and attic fans reduce energy consumption substantially).
“It pays for itself in one season,” THE ENERGY EXPERT said.
Homeowners typically spend about $1,600 a year to heat and cool the house, turn lights on and off, and operate appliances, said spokeswoman for the nonprofit Alliance to Save Energy.
But they can cut those expenses by as much as $600 by switching to more energy-efficient products and taking a variety of other energy-saving steps.
Those can be as simple as replacing a 15- to 20-year-old refrigerator with a new Energy Star model, which uses about a fourth as much electricity as an older appliance, and/or putting compact florescent bulbs or LED bulbs in at least the five most commonly used light fixtures in the house. You should also replace burned out motors/compressors with energy efficient multi-stage motors.
“Compact fluorescents cost more up front, but you really make it up because they use somewhere between 20 and 25 percent of the energy required for an incandescent and they last 10 times longer,” the Energy Expert said. “Plus, they don’t burn as hot, so they don’t heat up the place during the summer and your air conditioner has to work less hard.”
A good place for homeowners to start in determining how their energy usage stacks up is to log on to the Home Energy Saver at homeenergysaver.lbl.gov.
Developed by the Department of Energy and the Environmental Protection Agency, this site calculates energy use and savings tips based on information that users provide. Type in a ZIP code and up pop the energy costs of an average home and an energy-efficient home for that area.
The program also includes a questionnaire that asks for more detailed information so it can provide a customized answer. It also has links to sites that provide a wealth of information about its energy-saving recommendations.
On various utility companies Web sites, shoppers can order a similarly helpful gizmo called Watts Up? Plug in any standard 120-volt appliance or electronic device, and it will analyze such things as current draw, incoming voltage and cost of operation. The Watts Up? Basic model costs $89.95 and the pro version costs $123.95.
Rather leave audits to professionals?
Some auditors offer a standard audit for $100 that includes a visual inspection of the house and its heating, ventilation and air-conditioning systems. An expanded audit, which costs $200, includes tests to check for leaks in air ducts and the house’s air-tightness.
Your local utility company may do audits, also has a list of providers on its Web site.
Low-income homeowners can get help for free through the Aging weatherization assistance program.
“We go into the house and do various tests to find problem areas,” said the Energy Consultant. “What we do in most cases is make minor repairs and blow in insulation.”
Last fiscal year, many families got help through the federally funded program.
Sometimes, however, the most effective ways to trim energy usage are the easiest, the Energy Expert said.
Putting up weather-stripping, for example, is something anyone can do yet many people overlook, he said. The same goes for changing a heating system’s air filters on a regular basis or a set-back thermostat.
The Energy Expert also recommended installing ceiling fans and programmable electronic thermostats. A fan can make a room feel cooler so the air conditioning can be turned up, and a programmable thermostat automatically lowers the heat setting while homeowners are at work and raises it just before they return.
The Energy Expert has also learned that putting the screens/shades on the south-facing windows of the house in the summer will help block out some of the sun’s fierce heat. In some states especially the western parts of the United States temperature at night falls to 50-60 degrees – open the windows and shut the air-condition and or utilize a fan to bring in the fresh cooler air – it is also healthier and reduces indoor pollution. In areas of the country that have a high humidity – you can install a dehumidifier in the summer to reduce energy cost and a humidifier in the winter.
“I take the screens and or shades off in the winter,” The Energy Expert said.
Increasing a house’s energy efficiency not only lowers the owner’s bills, it also raises the value of the property. According to an EPA-funded study done in 2005, the latest year for which figures are available, a house’s value jumps $10 to $25 for every $1 the owner is able to save on annual fuel/energy bills. You can also utilize rainwater and grey water to reduce your water and sewer bill. Some utility companies will allow you to install a sub-meter for the water used for landscaping, swimming pools and ponds – which eliminates the sewer charge from that portion of your water bill.
“You’ll get a better price because you can show them your heating and cooling bills, which are reasonable and not outrageous,” said The Energy Expert, national energy-management coordinator.
The Energy Expert oversees many Energy Saver Home programs, which inspects houses as they’re being built to insure they’re properly insulated and sealed. The inspections cost $250 and come with a year-long warranty. For an added service The Energy Expert will perform a site inspection for the installation of Solar/Photovoltaic system for the home and/or business and its benefits, costs, rebates, tax credits, financing and ROI.
Prospective buyers of energy-efficient houses can get a break, too.
“Some mortgage companies will allow you a better debt-to-income ratio,” The Energy Expert said. “They know your electric/gas utility bills will be less so you’ll have more income to put toward your mortgage.”
YJ Draiman - Energy Savers 7/16/2007 – renewableenergy2@msn.com
PS. The politician’s intentions were captured perfectly. The eco-pretensions of the rich and the stupefying gullibility with which they received the task of energy savings are to be the laughing stock of society.
August 30th, 2007 at 8:45 pm
To accelerate “IMPLEMENTATION of ENERGY EFFICIENCY, CONSERVATION, RENEWABLES and Reduction in the use of fossil fuels”.
The U.S. government can initiate an aggressive program to encourage and expedite these concepts, reduce demand by spurring a revolution in energy productivity initiating:
One promising idea is to make energy efficiency trade-able, much in the same way as we trade oil and natural gas, or, indeed, carbon emissions. A system making energy efficiency trade-able in the U.S. — companies would be able to sell credits when they exceeded new standards — would quickly reduce total energy consumption while limiting carbon emissions. Adding a market mechanism to trade efficiency gains would make energy efficiency standards more palatable to industries that have resisted them in the past and expedite implementation of energy efficiency and fuel efficiency. –
“Money makes the world go round”.
YJ Draiman, Energy analyst
8/31/2007
October 1st, 2007 at 12:13 am
articles of latest new technology…
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December 14th, 2007 at 1:11 am
Selling Renewable Energy (Solar Etc.) Without Incentives
In short, we need to market solar as an investment that will save money while you own it and return most or all of your investment when you sell the building it’s sitting on.
Chances are, as natural gas and oil prices go up, there will be a corresponding jump in your monthly electricity bill. So, instead of promoting a solar power system based on today’s savings in electricity, we need to have easily understandable projections on what the savings will be over the life of a system. These numbers need to reflect what’s really happening to the cost of energy!
Here are some ideas I’d like to share. First, we need to find a way to make renewable energy economically competitive without the tax incentives. We do this by answering the question: “What is the opportunity cost of not using solar to decrease your energy bill?”
There’s something interesting I’ve found. There’s a direct correlation among electrical rates, the cost of air conditioning a building, the heat index and the amount of sunshine on any given day. In other words, on the hottest, sunniest days, we use more electricity that costs more per kilowatt. So, why do we continue to promote average hours of solar production, when in fact (at least down here in California), we produce far more solar power per day during the heat of the summer when energy costs are highest, than we do in our temperate winter months when energy costs are lowest. A sound marketing approach would be to evaluate solar energy in “dollars” of production per year instead of in kilowatts. I’m sure there are some smart people out there who can match kilowatts of solar production on any given day of the year to what the rates will be (based on the projected costs of electricity).
Secondly, we should stop trying to sell a solar package as a “cost.” In real estate, there is a principle that says anything affixed to real estate becomes an integral part of the real estate. Once a solar package is installed, it immediately increases the value of a property. So how can you predict how much more a building will be worth in 5-10 years with a package as opposed to without one? In the real estate appraisal business, there are three approaches to appraising a property. The market approach (what are comparable properties selling for), the reproduction cost (the cost of creating an identical building at current construction and material prices) and the actual original cost adjusted for inflation. In all three methods, there’s a strong case that a system installed today will make the building worth more today and in future years.
We need some realistic numbers to predict how much more a property will be worth in the years following installation. I believe that if you sell a building 5-10 years after installing solar, you should recoup all of your investment in the system plus an added bonus. If the rumors are true, a residential system (using the market approach) adds $20 of value to a home for every $1 it saves on the electric bill.
For commercial appraisals, you would divide the income (savings) by a cap rate (which was about 9% at last report). A system that saves $2000 a year then would be worth $40,000 on a home or $25,000 on a business. But if the cost of electricity goes up (if that is remotely possible), then wouldn’t the value of the solar power system increase as well? In reality, we are not selling something that costs — we are actually offering a financial investment that grows comparably with other forms of energy.
In short, we need to market solar as an investment that will save money while you own it and return most or all of your investment when you sell the building it’s sitting on. In commercial real estate, they use a “Cash Flow Analysis” form as the tool to evaluate a building’s value using the income approach. We need a similar tool for putting a value on solar. If solar makes sense with this approach, then just think of how much better the systems look when you add the tax advantages!
This approach also applies to the cost of Energy efficiency implementation.
Reducing operational costs increases the value of the business and or property.
Compiled by Jay Draiman, Energy analyst
12/1/2007
May 8th, 2008 at 11:49 pm
Water is the source of life - treasure it! R4.
Water is the source of all life on earth. It touches every area of our lives. Without it, we could not thrive — we could not even survive.
Sustainability – “We strive to meet the needs of the present generation without compromising the ability of future generations to meet their own needs”.
We should discourage wastefulness and misuse, and promote efficiency and conservation.
“Conservation is really the cheapest source of supply,”
For the benefit of mankind, maintain the quality of life and preserve the peace and tranquility of world population. Water resources must be preserved - to sustain humanity. We must eliminate wasteful utilization of water, conserve our water sources and implement rigid conservation methods. We should utilize solar and or other source of renewable energy to operate desalinization projects from the oceans. Utilize renewable energy sources to purify and transport the water to its final destination. As world population increases the scarcity of water will become a cause for conflict, unless we take steps now to develop other sources of water for drinking, rainwater harvesting – storm-water and gray-water utilization. Designing of landscaping that uses minimal amount of water.
“With power shortages and a water scarcity a constant threat across the West, it’s time to look at water and energy in a new way,”
To preserve the future generations sustainability, we should look into urban farming – vertical farming. The term “urban farming” may conjure up a community garden where locals grow a few heads of lettuce. But some academics envision something quite different for the increasingly hungry world of the 21st century: a vertical farm that will do for agriculture what the skyscraper did for office space. Greenhouse giant: By stacking floors full of produce, a vertical farm could rake in $18 million a year.
Jay Draiman, Energy and water conservation consultant
May. 2, 2008
PS.
Hydro dynamics: forget oil. Sharing freshwater equitably poses political conundrums as explosive and far-reaching as global climate change.
Quoted from other sources
Anyone who has ever stood on a beach and looked out into the vast expanse of an ocean knows that there is a lot of water on this planet. In fact, 70 percent of the Earth’s surface is covered by water. It may seem like water is all around us, but safe, clean, reliable drinking water is not a cease¬less resource. The problems facing drinking water range from failing infrastructure, to climate change, to insufficient supplies.
Personal Conservation
Preserving our water resources is not a job for water industry professionals alone. We all have a vested interest in ensuring that water remains safe, af¬fordable and available. Therefore, each individual American has a responsibility to monitor and control their water use, There are many simple ways for people to reduce excess water use, lower water bills and protect the environment, espe¬cially in die spring and summer months, Beyond the standard constraints of watering the lawn only when neces¬sary and washing car wisely by using soap and a bucket of water, some steps include: draining water lines to outside faucets, disconnecting hoses, shutting off outdoor water sources during cold weather and running a small trickle of water on whiter nights to prevent pipe from freezing.
Conclusion
Water supply management is an issue that affects us all. It may not be apparent to every citizen today, but with climate change and population shifts transforming the United States, it soon will be. Effective solutions need to be put into place today before we are faced with a water crisis. A focus on careful planning, treatments, innova¬tions and conservation measures will help to create stability for long-term water management. Commitment to keeping water at the top of the list for communities and citizens will better prepare us for whatever the future of water holds.
WATER!
The indispensable source of life-without water there would be no industry, no agriculture and, most importantly of all, no life. In dry parts of the world this essential commodity is even more precious. Almost all human actions involve water from taking a shower to reading a newspaper to driving a car or simply eating a sandwich - almost everything we do or touch is somehow related to this precious treasure. We ask that you stop and think how you use water and what you can do to conserve this essential natural resource.
*Water, beliefs and customs,
*Water as a vehicle of the economy,
*Water, source of art and life, irrigation and cultivation.
The people have decided to act to try and develop a real awareness program on the theme of water preservation and distribution in an attempt to help maintain the original purity of rivers and streams.
In many parts of the world water sources and wells are not equally distributed. Water as a source of life can also be at the source of conflict.
Whether we live in India, Iceland or the Atlas… we have always tried to trap and tame water. Dams, pumps, canals, water treatment centers; there are so many different ways to exploit this resource that we often forget how fragile this unique and essential treasure actually is.
Unfortunately, many of the things we do every day can harm our water. That’s why all people and government should be working with municipalities, farmers, business leaders and developers just like you to take action to protect our water and clean it up.
Small changes can make a big difference. This guide outlines practical things we can all do to preserve and protect our water. We all need to be part of the solution.
Concentrated Solar Power, which requires no solar panels at all. It works by concentrating sunlight onto a small pipe using cheap parabolic reflectors. The pipe contains a liquid that’s heated to very high temperatures by the sun and drives a steam boiler that rotates a turbine to generate electricity (much like nuclear power plants, but without the nuclear waste). It’s cheap, low-tech, and far more affordable than solar power. Plus, it can be built in practically any desert, so it doesn’t take up valuable land. As another bonus, when CSP operations are built near the ocean, they can desalinate ocean water as a side effect, providing fresh water for irrigation to grow food. This is the only renewable energy technology I know of that can produce cheap energy, fresh water and crop irrigation all at the same time. Plus, it has no emissions, no toxic chemicals, no nuclear waste and very little environmental impact..
“You can’t escape the responsibility of tomorrow by evading it today” - Abraham Lincoln said it.
“That man is richest whose pleasures are the cheapest” – Henry David Thoreau.
“To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by right to hand down to them amplified and developed” – Theodore Roosevelt.
“When the ‘study of the household’ (ecology) and the ‘management of the household’ (economics) can be merged, and when ethics can be extended to include ‘environmental’ as well as human values, then we can be optimistic about the future of mankind. Accordingly, bringing together these three E’s is the ultimate holism and the great challenge for our future” – Eugene Odum.