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Brand new solar panels on our roof. With the guaranteed infeed compensation in Germany the investment will have amortised in about 5 years, with 15 more years of guaranteed returns.
Gossamer Penguin in flight above Rogers Dry Lakebed at Edwards, California, showing the solar panel perpendicular to the wing and facing the sun. The first flight of a solar-powered aircraft took place on November 4, 1974, when the remotely controlled Sunrise II, designed by Robert J. Boucher of AstroFlight, Inc., flew following a launch from a catapult. Following this event, AeroVironment, Inc. (founded in 1971 by the ultra-light airplane innovator--Dr. Paul MacCready) took on a more ambitious project to design a human-piloted, solar-powered aircraft.
The firm initially took the human-powered Gossamer Albatross II and scaled it down to three-quarters of its previous size for solar-powered flight with a human pilot controlling it. This was more easily done because in early 1980 the Gossamer Albatross had participated in a flight research program at NASA Dryden in a program conducted jointly by the Langley and Dryden research centers. Some of the flights were conducted using a small electric motor for power. Gossamer Penguin The scaled-down aircraft was designated the Gossamer Penguin. It had a 71-foot wingspan compared with the 96-foot span of the Gossamer Albatross. Weighing only 68 pounds without a pilot, it had a low power requirement and thus was an excellent test bed for solar power. AstroFlight, Inc., of Venice, Calif., provided the power plant for the Gossamer Penguin, an Astro-40 electric motor.
Robert Boucher, designer of the Sunrise II, served as a key consultant for both this aircraft and the Solar Challenger. The power source for the initial flights of the Gossamer Penguin consisted of 28 nickel-cadmium batteries, replaced for the solar-powered flights by a panel of 3,920 solar cells capable of producing 541 Watts of power. The battery-powered flights took place at Shafter Airport near Bakersfield, Calif. Dr. Paul MacCready's son Marshall, who was 13 years old and weighed roughly 80 pounds, served as the initial pilot for these flights to determine the power required to fly the airplane, optimize the airframe/propulsion system, and train the pilot. He made the first flights on April 7, 1980, and made a brief solar-powered flight on May 18.
The official project pilot was Janice Brown, a Bakersfield school teacher who weighed in at slightly under 100 pounds and was a charter pilot with commercial, instrument, and glider ratings. She checked out in the plane at Shafter and made about 40 flights under battery and solar power there. Wind direction, turbulence, convection, temperature and radiation at Shafter in mid-summer proved to be less than ideal for Gossamer Penguin because takeoffs required no crosswind and increases in temperature reduced the power output from the solar cells. Consequently, the project moved to Dryden in late July, although conditions there also were not ideal. Nevertheless, Janice finished the testing, and on August 7, 1980, she flew a public demonstration of the aircraft at Dryden in which it went roughly 1.95 miles in 14 minutes and 21 seconds.
This was significant as the first sustained flight of an aircraft relying solely on direct solar power rather than batteries. It provided the designers with practical experience for developing a more advanced, solar-powered aircraft, since the Gossamer Penguin was fragile and had limited controllability. This necessitated its flying early in the day when there were minimal wind and turbulence levels, but the angle of the sun was also low, requiring a panel for the solar cells that could be tilted toward the sun. Using the specific conclusions derived from their experience with Gossamer Penguin, the AeroVironment engineers designed Solar Challenger, a piloted, solar-powered aircraft strong enough to handle both long and high flights when encountering normal turbulence.
Credit: NASA
Image Number: ECN-13413
Date: July 25, 1979
CHANNEL MARKING
One of the most important functions of marine aids to navigation is to keep larger vessels or any boats that have deep draft out of shallow areas where they could run aground and be stranded !
Running aground has always been one of the greatest dangers to marine traffic and shipping, so consequently an elaborate system of channel markers has evolved to help boat operators and ship captains steer their vessels through the potentially treacherous waters that are usually found near land !
Channel markers make use of natural corridors of deep water, such as river beds and tidal cuts, as well as man-made canals and dredged deep water channels created for the purpose of navigation !
Thanks To Mia ~ Now Identified !
Update
A cardinal mark is a sea mark (a buoy or other floating or fixed structure) used in maritime pilotage to indicate the position of a hazard and the direction of safe water.
Cardinal marks indicate the direction of safety as a cardinal (compass) direction (north, east, south or west) relative to the mark. This makes them meaningful regardless of the direction or position of the approaching vessel, in contrast to the (perhaps better-known) lateral mark system.
The characteristics and meanings of cardinal marks are as defined by the International Association of Lighthouse Authorities.
A cardinal mark indicates one of the four compass directions by:
the direction of its two conical top-marks, which can both point up, indicating north; down, indicating south; towards each other, indicating west; or away from each other, indicating east
its distinctive pattern of black and yellow stripes, which follows the orientation of the cones - the black stripe is in the position pointed to by the cones (eg at the top for a north cardinal, in the middle for a west cardinal)
optionally, its distinctive sequence of flashing light, which consists of a sequence of quick or very quick flashes whose number gives the clockface position which corresponds to the direction of the cardinal (eg three for an east cardinal, nine for a west; north has continuous flashes, and south may be augmented with a long flash, to help distinguish it from a west in difficult conditions)
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Visited the beautiful US state of Vermont again last week. I think this picture sums it up well - green mountains, nature, solar power, fields of flowers, and the old truck is an added piece of foreground interest bonus.
The Crescent Dunes Solar Energy Project, near Tonopah, Nevada. This facility employs a field of mirrors focused on a central tower, as seen here from a United Airlines Boeing 737.
Crescent Dunes Solar Energy Project web site:
www.solarreserve.com/en/global-projects/csp/crescent-dunes
Crescent Dunes Solar Energy Project (Wikipedia):
I love old farmhouse kitchens and I was scared that when we built our house that the kitchen wouldn't have any charm. Using stone and pieces of wood we found here and there and some very new wood we cut from our woods, we had the start of a room that felt "lived in" as we were building it.
I added the old wooden tables which I've had since I was a student in Glasgow, a few chairs that have been given to me over the years, a woodstove we bought second-hand and a few bits that have followed me around for years and the new house feels like home.
As long as the fossil fuel lobby has a free hand in Washington D.C. and the state capitols, the potential for renewable energy, such as solar power, will never reach its full potential.
The fossil fuel lobby's all-out push for fracking will permanently destroy our nation's landscape and poison our water FOREVER. It will be akin to a toxic nuclear effect without the radiation. Thus the meaning for the image shown here.
Image No.2 with heavy tone-curve processing.
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Both great sources of renewable power,
Turbines are the alternative to fossil fuel without greenhouse gas,
Its all pure with a minimal land use,
This was taken out east on Long Island few years back.
Tilonia India, Barefoot College -
From September 2011 to the following March, women travelled from across Africa, from countries like Uganda Liberia and South Sudan, to take part in training to become solar engineers.
Each was selected or nominated by her local community and supported by a variety of local and international organisations, and in some cases, their governments. Their trainers, who mostly speak Hindi, must cut across linguistic and cultural barriers using gestures and signs.
Photo Credit: UN Women/Gaganjit Singh
A house on the (almost finished) bicycle boulevard (Franklin Street).
This house has at least 13 solar panels. I'm unsure of how much power those 13 panels I saw can generate.
My main reason for heading to the west end of Zurich on that post-lockdown day, was in order to photograph the building featured here. Even after doing some research, I can't tell you exactly what it is used for, but it appears to be part of the Swissmill complex and is likely a grain silo. If any of you know what the building is used for, then please let me know.
I had seen the building multiple times out the train window while travelling along the nearby tracks and every time I thought to myself that it would look amazing photographed in black and white. The compositions I originally had in mind will be featured in the next post, but I was also quite chuffed with how this front-on image turned out.
Film: Rollei RPX 400
Camera: Rolleiflex 2.8F with orange filter
Development: Ars-Imago #9 (rodinal) 1:50 with a 1/2 stop push
Digitised with a digital camera and contrast adjusted in LR and PS
Looking for solar power systems? Gosolar will guide you how much does a home solar power system & solar panels cost? How much is solar installation.
The helicopter regularly flies the power lines to look for issues
...or maybe it's a new eco-electric chopper??
The Ivanpah Solar Electric Generating System is a concentrated solar thermal plant in the Mojave Desert. It is located at the base of Clark Mountain in California, across the state line from Primm, Nevada. The plant has a gross capacity of 392 megawatts (MW). It deploys 173,500 heliostats, each with two mirrors focusing solar energy on boilers located on three centralized solar power towers. The first unit of the system was connected to the electrical grid in September 2013 for an initial synchronisation test. The facility formally opened on February 13, 2014. In 2014, it was the world's largest solar thermal power station.
This is an image I took for a competition recently to do with energy in the environment, so far it's won me a few things, result! :o) Let me know what u think guys......x
Yet another sunshine oriented photo. I can't help it - it's been so unseasonably sunny and warm here in the Northeastern U.S.! This is a solar powered flower that "dances" when you set it under a light. The way it moves is so cheerful that you really can't help but feel happy watching it.
For Our Daily Challenge: Six (for six petals)
Our sun, like all other stars, generates its energy through nuclear fusion: inside it, 564 million tons of hydrogen are fused to 560 million tons of helium every second. The "missing" four million tons are radiated as energy. This is more energy per second than has been produced by our global civilization through the burning of fossil fuels since the beginning of industrialization !