Posts Tagged ‘potable water’

2 April

Governor Brown, Solar Desalination As The Solution To The Drying California

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The Drying of California map

The Drying of California map

Dear Friends, Visitors/Viewers/Readers,

(Please click on red links & note magenta)


For the first time in California history, Gov. Jerry Brown ordered mandatory water use reductions on Wednesday, April 1, 2015.  No Foolin’!   Finally the state’s four-year drought had reached near-crisis proportions after a winter of record-low snowfalls.”This historic drought demands unprecedented action,” Brown said, standing on a patch of dry, brown grass in the Sierra Nevada mountains that is usually blanketed by up to 5 feet of snow. In an executive order, Gov. Brown directed the State Water Resources Control Board to impose a 25% reduction on the state’s 400 local water supply agencies (serving 90% of California residents). The agencies will be responsible for coming up with restrictions to cut back on water use and for monitoring compliance. State officials said the order would impose varying degrees of cutbacks on water use across the board — affecting homeowners, farms and other businesses, as well as the maintenance of cemeteries and golf courses.

“We’re in a new era,” Gov. Brown said. “The idea of your nice little green grass getting lots of water every day, that’s going to be a thing of the past.” The state had trouble reaching the 20% reduction target that Gov. Brown set in January 2014 when he issued a voluntary reduction order. The state water board has the power to impose fines on local water suppliers that fail to meet the reduction target set by the board over the coming weeks.

The California Republican Representative Kevin McCarthy, the House majority leader, said, “The current drought in California is devastating. Today’s order from governor should not only alarm Californians, but the entire nation should take notice that the most productive agriculture state in the country has entered uncharted territory. I’m from the Central Valley, and we know that we cannot conserve or ration our way out of this drought.”

To Gov. Brown and Rep. McCarthy, I’d like to say, “Consider Solar Desalination!” Below is taken from Wikipedia on the topic of solar powered desalination unit. There are  also several videos helping to explain the process of seawater desalination and various technologies of solar desalination, utilizing our abundant sea water. Historically, due to the great deal of energy that is required in seawater desalination, desalination has not been utilized much in USA. With the dramatically decreased cost of solar coming on scene, Solar Desalination is now more likely to be an economically feasible solution to the California drought. Please be sure to also view the last video on “Seawater Desalination via Solar Power Satellites” that will utilize the currently existing 27 oil rigs  and off-shore platforms to serve as receiving antennas for the power beams of space solar satellites, running salt water desalination plants and using excess energy to power homes, cities, and industries in California.

A solar powered desalination unit produces potable water from saline water through direct or indirect methods of desalination powered by sunlight. Countries such as Australia, Italy and Egypt have adopted this system as an alternative source of water for the population.

 

 

 

 Direct solar desalination produces distillate directly in the solar collector. An example would be a solar still which traps the Sun’s energy to obtain freshwater through the process of evaporation and condensation. Indirect solar desalination incorporates solar energy collection systems with conventional desalination systems such as multi-stage flash distillation, multiple effect evaporation, freeze separation or reverse osmosis to produce freshwater.

The intermittent nature of sunlight and its variable intensity throughout the day makes predicting its efficiency difficult. However, incorporating a thermal energy storage system solves this problem and ensures constant performance even during non-sunlight hours and cloudy days, improving overall efficiency.

There are some concerns regarding seawater desalination such as the efficiency level and environmental impacts that would need to be monitored continuously. But solar desalination may provide California with the viable solution, I am optimistic.

Gathered, written, and posted by sunisthefuture-Susan Sun Nunamaker

~have a bright and sunny day~

Please also get into the habit of checking at these sites  below for more on solar energy topics: www.sunisthefuture.net

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25 August

Mobile Wonder-Mobile MaxPure (2 of 2)

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Dear Friends & Visitors/Viewers/Readers,

(Please click onred linksbelow)

As I’ve promised you in our previous August 24, 2012 post, I found a video with more detailed descriptions of Mobile MaxPure (<– click for specifics) MMP unit for you.  As you can see, this stand alone transportable, air liftable unit is able to provide potable water (30,000 gallons per day), communications via satellite phone (capable of voice and data), power, and lighting.  As it turned out, its original inception was inspired by Hurricane Katrina.  Its unique folding array design allows its solar panels to be folded tightly against the body of the unit, easily shipped inside of the standard shipping container unit. The unit weighs 8500 lbs and can be towed by medium size pickup.  Its silicon durable and rugged solar arrays (3.2 kilowatts) may be tilted (ranging from 0 to 25 degrees) to optimize the amount of energy to be collected from the sun. The solar energy collected during the day may also be stored in the rugged battery bank provided by this MMP unit, fulfilling the need for water purification and lighting operations during the night.  This three-stage water purification system has a mass-media filter, a carbon filter, and a UV water filter system;it also has two parallel pathways for ease of maintenance and mechanical and electrical interlock to prevent contaminated water from entering the clean water supply. The 3000 watt on board power inverter converts the dc power from the sun to the  ac useable power for lighting, water purification, and operation of power tools.  Take a look, this gadget may be able to provide the power need for a whole subdivision in times of disaster relief, below:


~have a bright and sunny day~

researched, written, and posted by sunisthefuture-Susan Sun Nunamaker, sunisthefuture@gmail.com

Homepage: http://www.sunisthefuture.net


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11 September

Solar Decathlon (19)-Vermont’s Middlebury College’s Self-Reliance Design of 2011

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Dear Readers,

If you are in favor of renewable,  clean, or solar energy, please sign this petition for FIT/CLEAN Program, accessible at http://sunisthefuture.net/?page_id=1065 Thank you very much. We are at a critical juncture in human history when individual effort and participation in the transition into renewable energy age is desperately needed!  Your signature will be very meaningful in helping all earthlings!  For a summary of why we need to switch to power the earth with Wind-Water-Sunlight quickly, reasons are explained by Stanford Professor Mark Z. Jacobson at  http://sunisthefuture.net/?m=20110731 There are more than sixteen episodes of discussions on FIT (Feed-In-Tariff/CLEAN Program) available at http://sunisthefuture.net Please feel free to read/listen to them (type in feed-in-tariff in the search box at right).  Keep in mind that signing this petition only means that you are in favor of renewable energy and FIT/CLEAN Program and does not obligate you to provide any financial support. We simply want our combined voice to be heard even if we are not spending millions of lobbying dollars. We want to demonstrate that our system of democracy will work for people in all socio-economic strata. So please join us in this earthly movement by signing this petition and participating in our common goal of moving toward the renewable and solar energy age.

Today’s Solar Decathlon of 2011 video clip is on Vermont’s Middlebury College’s design Self-Reliance.  Self-Reliance is a sustainable home for a family of four in Vermont. The focus of this design is on sustainability, affordability, use of local material, and the vernacular form creating an American Farmhouse of the 21st century. This is a home of  design for simple construction: a truss system supporting the roof (gable roof easily sheds precipitation and maximizes space), stud walls filled with cellulose , floor made of locally harvested maple wood, triple pane windows optimizing solar exposure while cross ties providing lateral support for the structure, benches and plant beds are part of the organization of the design plan, and solar panels enable Self-Reliance to be a net-zero energy home.  Northern skylights provide passive ventilation and natural light into the center of the house. The South facade receives the sun with large panes of glass and solar panels.  In the exterior of the house, potable and non-potable water are collected and stored in four water tanks. The garden beds and benches in the front creates an extension of the public space. Upon entering the house, there is a transitional space for boots and jackets.  An open public area, used for dining, cooking, working, and socializing, provides a sense of spaciousness.  The Southern wall is a green house that provides food and passive heating  throughout the year. The living space receives even North light and has sustainably produced furniture. Half of the house is used for public space and half of the house is used for private space, with the transition between the two spaces indicated by  the dropped ceiling height.  There is also a full bathroom between the private and public spaces. Both bedrooms have tall ceilings and access to storage in the adjacent low ceilings.  Now, let’s have a look at this almost 1000 sq. ft. farmhouse inspired design of Vermont’s Self-Reliance—->

written and posted by sunisthefuture-Susan Sun Nunamaker, sunisthefuture@gmail.com

Homepage:   http://sunisthefuture.net http://sunisthefuture.com http://sunisthefuture.org



Any comments and suggestions are welcomed at sunisthefuture@gmail.com

Please also get into the habit of checking at these sites below for more on solar energy topics:

www.sunisthefuture.net

www.youtube.com/user/sunisthefuture

www.kiva.org/team/sunisthefuture

www.facebook.com/sunisthefuture

www.pinterest.com/sunisthefuture

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