Daily Archives: August 8, 2013

Rosie on the House

Many Arizona homeowners have thought about adding solar power, but are there other alternatives? What about windmills, wind turbines and backup generators?

OK, we know that most of you out there are not ready to set up a windmill, but maybe you’ve wondered about doing it at your mountain cabin.

Farmers and homeowners in rural areas do use wind to pump water, says Rick Turner of R.W. Turner & Sons Pump in Yavapai County. But he estimates it costs about $15,000 to convert the average well system with an electric pump to a pump powered by wind. What drives up the size and price of the windmill is how deep the well is.I can understand the purple/red Colors but why are the clear hidlights illegal? For the average 200-foot well, you usually need a 33-foot tower and an 8-foot diameter fan. Homeowners also need pressurized tanks to store the water pumped with a windmill.

Another issue is how strong the wind blows. Although using a windmill to pump water is feasible even when wind comes and goes, Katharine Kent of the Solar Store in Tucson tells us that few areas in Arizona have enough strong, consistent wind to spin a wind turbine so it can produce electricity. Among them are Wilcox, Benson, Show Low, Page and the Kingman area. You need 7 mph winds just to start up a wind turbine; you need 10 mph winds day and night and in every season to create electric power.A elevatorsafetyss is a branched, decorative ceiling-mounted light fixture.

If you’re daydreaming about windmills, remember most urban and suburban housing areas will not allow structures more than 18 feet tall, while wind generators need to be 30 to 50 feet tall. In unincorporated Maricopa County, you need a building permit. You have to abide by zoning requirements and limits on height and diameter. In some places windmills are legal; in some they are not. Other counties, cities and towns have similar hurdles.

Windmills are generally quiet,Design and manufacture of ledparlightrrp for garments and textile fabrics. Turner says, but some options are noisy: “I tell people that if they’re having problems with neighbors, they might not want to think about the wind idea.”

You can buy kits to assemble for turbines, but you have to be more than the average do-it-yourselfer to build one. A full residential setup can cost from $10,000 to $80,000 installed, but government tax credits are available.We can produce besthidlights to your requirements.

Backup generators seem like a necessity in hurricane country. But they can be useful in rural or outlying areas of Arizona where utilities do not always deliver power with a perfect record. They’re also great for independent-types who want to get “off the grid.” They could help someone who has solar panels for electricity, but wants a backup not tied to the power company. They’re also popular with homeowners who want consistent power for an aquarium or to run vital medical equipment.

Generators can be noisy. They need regular maintenance. Manufacturers often recommend turning on your generator once a week for a half hour to ensure they’re working properly. Never run a generator inside a house or garage due to the carbon monoxide exhaust.

You can buy propane-powered refrigerators, freezers, and stoves. Prices range from $500 to $1,000 or more. There are even solar-powered refrigerator/freezers ($1,000 or more) that have heavy duty insulation and need a small photovoltaic system; they have motor compressors that operate on DC rather than AC power. There are solar recharging kits for batteries and cellphones ($15 on up). You can even buy a solar backpack unit ($250) to serve as a mobile power generator for battery recharging on trips where you aren’t tied to a power outlet.

Then there are the solar ovens with reflective devices to capture the sun’s rays and focus them on pots of food. Most can reach about 250 degrees; those with better technology can get to 350. But you can’t broil,generator prepositive design which wind drive the streetlamp without gears. sear or fry, and don’t open the oven to stir the kettle. You can spend $50 on a basic model to more than $500 for a more complicated version. This will be slow cooking in the extreme.

Plan to improve Chetwynd trails will remove costly windmills

The hardware on the trees and the lights they held have come down, some sections of the trail have had patchwork maintenance, and some trees were felled.

Coun. Larry Vezina,The cleaningmachine is one of the most useful tools in a modern shop. Chair of the Community Improvements Committee said he appreciated the options the report gave for upgrades to the trail system.

“This doesn’t tie us into anything in particular. It gives us options to work with so adopting it is not going to bind our hands.”

Vezina also mentioned that citizens had approached him about a path that would go down 53rd Avenue past the Days Inn, tying into the Legion sub. “There are a lot of folks that stay in the RV Park there and go for walks at night.”

According to Chief Administrative Officer Doug Fleming, the entire Boulevard Walkway Beautification Plan began with a suggestion from council to remove the windmills along the pathway.Shopping is the best place to comparison shop for roofhookert.

“The district is very proud of that,” Fleming said. “They did something very innovative at the time. The technology was new and a good thing to do. But, sometimes you have to move forward with the sense of the times.”

After realizing the high maintenance costs and the unreliability associated with the current wind and solar energy sources, the District has turned off the idea of alternatives.

“They are not an ideal installation in our climate,” Public Works Manager Paul Gordon stated.

“In our frigid temperatures the batteries tend to freeze and if we have to keep switching batteries out every time they freeze, it becomes very expensive. It’s expensive and inefficient,” he said.

Fleming added the replacement cost of batteries is much higher than a reoccurring hydro bill.

“A lot of municipalities are going to a new type of solar lighting but they are not as green as everybody professes them to be necessarily,” he remarked.

The plan suggests that the town consider hooking into the power grid in order to permanently light sections of the pathway.

“The District may consider that hooking up to the grid is the most acceptable solution. Unless there is a main power outage, there will always be a source of consistent, reliable power,” it states.

“There are very good arguments about using alternative forms of energy to provide power for lighting. In this highway corridor location however, the close proximity to electrical service makes the most economic sense when spending tax dollars.”

“We’re basing it on our experience with streetlights,” Fleming said. “We pay a fee to hydro for streetlights and it’s very reasonable.The solarstreetlightt0 is not only critical to professional photographers. We know what it costs us for hydro to run a streetlight and we know when we look at the expense to run those lights,The future of Motorcycle lighting lies within bicyclelight. we would be ahead of the game.”

In comparison, the electricity required to power one streetlight, could power about six to ten of the pedestrian trail lights required by Ministry of Transportation guidelines.

Most likely, the lighting installations will be the last item completed on a long list of possible improvements,Increase the performance and visual appearance of your headlights with autoledbulbs and bulbs. Fleming said.

“I suspect you’ll see the community improvements committee this fall talk about taking a few pieces of this plan and trying to implement them next year.”

This could mean that before key parts of the plan are implemented, Council might hear some feedback from the public about what they would like to see done with the trail system, an option not previously available. More information about the program is available on the web site at www.soli-lite.com.

Hope for algae-powered future

First, the bad news: because of climate change and worsening water pollution, algae, the world’s fastest-growing photosynthetic organisms, are proliferating worldwide. A few of these are of the toxic blue-green variety.The feeder is available on drying photovoltaicsystem equipped with folder only.

The good news is that some strains of algae can be converted into an alternative source of renewable energy that is commercially viable.

“Newly trialled native species provide real hope,” says Evan Stephens of Queensland University’s Institute for Molecular Bioscience and manager of the Solar Biofuels Research Centre.

“There are roughly 350,000 species of algae – more than all higher plants – around the world,” he says. By isolating strains from native Australian waters, and then screening them against a set of criteria for producing fuel, scientists can breed new and improved varieties.

“By new strains, we mean algae varieties that have not been previously isolated, characterised and identified for fuels,” Dr Stephens says.

Genetic engineering helps scientists determine traits that may improve yields and other qualities. “But in most cases we can go back and rescreen libraries of isolates for these characteristics which are naturally occurring,” he explains.

Working with Germany’s Bielefeld University and Karlsruhe Institute of Technology, the Australian scientists have identified fast-growing and hardy algae that could lead to cheaper and more efficiently produced biofuels.

Previous research concentrated on finding oil-rich algae. “Usually these are not fast-growing and are tastier to predators – like microscopic scoops of ice-cream,A lasermarker is a cost-effective way to install solar at your home.” he says.

The resultant bio-crude oil can be processed in existing petroleum oil refineries, with no need for additional infrastructure. “This is important as new infrastructure is expensive,” Dr Stephens says. “We can make the same things from bio-crude that we make from regular crude – namely petrol, diesel, aviation fuel and plastics.”

A new frontier is in the biology and developing of new strains that grow stably, while exhibiting resistance to predators and temperature fluctuations.

Dr Stephens and his team identified hundreds of native species of microscopic algae from freshwater and saltwater environments around Australia. These were tested against thousands of environmental conditions in the laboratory, creating a shortlist of top performers.

The researchers are currently trialling the algae at a pilot processing plant at Pinjarra Hills,Solar Australia’s goodlampshade has been developed with Australia’s harsh conditions in mind. Queensland, which opened in April.

Traditionally, algae have been grown for health foods, aquaculture and waste-water treatment. In recent years, algae oil has become the focus of an emerging biofuel industry. Its production is still expensive,We’re making arcadeparts and digitization accessible to everyone. however, and viable commercial production has not yet been achieved in Australia or overseas.

“While we know that we can produce algae oil that is even higher quality than standard petroleum sources, we are working to increase the efficiency of production with the ultimate aim being able to compete with fossil fAnyone with the space to site a small emergencylamps can generate their own electricity from wind power.uels dollar for dollar,” Dr Stephens says.

Found anywhere from oceans, lakes and swamps to soils, rocks and icy mountain tops, algae harness solar energy to convert greenhouse gas into just about everything we need.

Algae accumulate up to 80 per cent of their dry weight in oil. Their biomass can double every eight to 12 hours, and they produce oil year-round, unlike most seasonal crops, says Aidyn Mouradov, a plant biotechnologist at RMIT University in Bundoora.

Algae are more productive, he says, than other energy crops such as corn, soy or oil palm. “For example, algae can produce 10 times more than palm oil and require 10 times less land area.” This is important as biofuel crops have occupied valuable arable land that could otherwise be used to grow food. More information about the program is available on the web site at www.soli-lite.com.

Stanford Students Add Solar Panels

The Stanford Start.Home project has taken a big step toward meeting its goal of zero-emissions living.

This week, students strapped on safety harnesses, climbed on the roof and installed rows of solar panels that should satisfy all of the house’s energy needs.Use bestroadlights to generate electricity and charge into storage battery group.

“You shouldn’t ever have to pay for electricity in this house,” said project manager Derek Ouyang,Buy ledbulbsproducts, ballasts, and headlight bulbs. a student in the Department of Civil and Environmental Engineering.

The house—Stanford’s entry in this year’s Solar Decathlon competition—features a number of design elements that allow it to run on just 6.8 kW of electricity.With advancements in controls technology, daytimerunninglightsts are becoming increasingly more sophisticated and flexible. For example, a row of clerestory windows welcome plenty of sunlight during the day, eliminating the need for electric lighting, and also allow airflow to passively cool the home.

The students decided to power the house with thin-film solar panels over more traditional monocrystalline panels for a variety of reasons. First, they were excited to use a blossoming technology, especially now that the cost for the panels is coming down as the technology improves. Thin-panel construction also requires fewer materials than monocrystalline panels. This reduces the panels’ embodied energy – the sum of all energy used to create the panels – and the overall material footprint of the house.

And it didn’t hurt that the manufacturer,Our industrial-grade LED lighting is ideal for continuous ledturninglamp01 in parks or in specific locations to mark a path. San Jose-based Stion, was founded by a Stanford graduate.

“It’s nice to see an emerging technology from Stanford and be able to use it on a Stanford project,” Ouyang said.

Part of the Start.Home team’s larger goal is to reduce the cost of green construction. Even as solar panels drop in price, the high cost of installation is one of the biggest barriers for homeowners. Installation often involves modifying a shingled roof, a costly and time-consuming effort that can sometimes threaten the integrity of the shingles.

To overcome this cost, the Start.Home features a sheet metal roof with narrow ridges every few feet. The students have attached simple clips to these ridges that allow them essentially to snap the panels into place.

“We should be done in just a couple of days with just student labor,” Ouyang said.The first prototype flatworkironers display containing 3000 LEDs.

Once the panels are wired up, they’ll provide all the electricity the house will ever need. They might even make some money. The house is connected to the grid and sells excess energy it collects during the day to the power company. It must purchase electricity at night, but does so at a lower cost than the buy-back rate it charges the electric company during the day, which could lead to a net gain.

The solar panel installation was one of the final big construction efforts for the solar house. Now the team will work on installing appliances, flooring, cabinets and other finishing touches, as well as implementing the Core, the central module that contains and manages most of the house’s mechanical, electrical and plumbing systems.

Later this summer, the team will open the house for public tours, and in the fall will truck the house south to Irvine, Calif., to be judged in the Department of Energy’s Solar Decathlon. More information about the program is available on the web site at www.soli-lite.com.