Did you make any New Year’s resolutions this year? What did you resolve to do? If you’re like many folks, you may have resolved to quit smoking, to exercise more, or to keep in better touch with far-flung family members. Whatever resolutions you made (or even if you didn’t make any at all) we have a great suggestion to add to your list: make a commitment to do three things to make your life a little greener.
We’re not talking major, life-changing adjustments here. We mean making simple, but effective changes that have a real impact on your life, on the planet, and in many cases, on your wallet.
To get you started, we’ve put together a list of simple things that you can do to start or sustain a greener, healthier life. Pick three, and see what happens! Of course, there are hundreds of little changes you can make that result in greener living – we’ve compiled a few to get the ball rolling.
A couple of years ago we reported on a water from air unit we used in the Caribbean island of St. Maarten (http://www.green-trust.org/wordpress/2008/06/13/air-water-generators/). This was a compressor based unit, that works like a dehumidifier and extracts the humidity and purifies it for drinking. We recently came across a non compressor unit, which reduces cost, and energy consumption. We have a sample coming next month, and the technology looks exciting. It uses a hygroscopic film, with electrostatic and carbon filters. We will keep you posted.
A metal roof with built-in solar panels is the most energy efficient and longest lasting solar roofing solution. A metal roof will usually last in excess of 50 years, and solar PV panels usually last 30+ years with minimal loss of efficiency or or electric power production. The combination of the two creates a one-time green roofing investment that will pay for itself over time, and then it will produce free electricity. Such a smart combination eliminates the chance of roof leaks, since there are no roof penetrations, and gives a homeowner piece of mind and confidence in their green metal roof.
Why would you want to install PV solar panels with a metal roof, instead of installing it on the existing asphalt shingle roof? The answer is very simple; asphalt shingles last an average of 15 years, while your solar panels should last at least 30 years. That means that even if you install your solar panels over a brand new asphalt shingles roof, you will have to remove the whole solar system in 15 years, replace the roof, and then put the solar panels back onto the roof. With the installation costs of a solar PV system being about $2 per watt, and an average solar system size of 3 KW, you will have to pay an extra $6000 (in today’s dollars, before any inflation is calculated) to reinstall your solar panels, and another $1500-2000 to
remove the panels, so that the roof can be replaced. With today’s average solar system price of $9-11 including solar panels, inverter, all wiring, rack-mounting system, permits, installation, etc.), the removal and re-installation price amounts to about 25% of the total solar system cost.
A properly installed standing seam metal roof will easily outlast any asphalt shingles roof by 3 time or more, and it will also outlast a warranty period on any solar panels. When your solar panels get old, and start producing less electricity than what they were designed for, you will have an option to either keep the old solar panels or install the new ones (as a side-note – average efficiency loss of a solar panel is 0.5% per year or 10% over a 20 year warranty period). All your infrastructure will already be in place, and you can simply swap the old solar panels for the new ones. You may also have to swap the charge controller / inverter. In 20 or 30 years, as technology progresses, the efficiency of solar panels and inverters will be much higher, and the cost per watt will be considerably lower. At the same time you will still have your metal roof, performing at 100% efficiency – being leak free and beautiful, that is.
Solar panels can be attached to a standing seam metal roof in two different ways. One is to use a thin film Solar PV panel laminated inside the pan of a standing seam metal roof – a so called solar metal roofing concept, when solar panels are integrated with the roofing material. The limitations of solar metal roofing include lower efficiency (per sq. foot or sq. meter) of the solar PV laminates. Therefore you would need double the roof area to get the same number of kW of a solar system. Also the size limitation of each solar PV laminate (18 feet long panels) make it impossible to install them on roofs with a roof run of less than 18.5 feet.
A better way to install solar panels onto a metal roof is to use S-5 clips or mounting brackets, specially designed to add adequate strength and support of rack-mounting systems installed on standing seam metal roofs. S-5 clops are made of cast aluminum blocks, with stainless steel tightening screws. S-5 clips are attached to the ribs or locks of a standing seam panel, and provide great pullout ratio, meeting and exceeding Miami-Dade county building code requirements for wind uplift.
S-5 Solar Panel mounting clamps allow for a quick and inexpensive installation of the solar rack-mounting system. Solar panels can be attached directly to the clamps, or to horizontal / vertical rails. The overall cost of such solar racking system is reduced from about $1 per watt, to about 50 cents per watt, or less. Also, you do not have to worry about any roof leaks, as there are no roof penetrations, and all mounting hardware is attached to the ribs of the metal roof panels.
You can also get a double tax credit for your solar roofing installation – Your first tax credit would be a 30% tax credit for solar panels, and and another one – up to $1500 cool roof tax credit. An average cost of metal roofing materials will exceed $5000 per roof, so you will be able to get a full 30% cool roof tax credit. With today’s metal roofing prices for steel standing seam ranging from $15000-20000, a $1500 tax credit will save you about 7-10% off your lifetime metal roof.
CFLs have several advantages over incandescent light bulbs: they last from 8-10 times longer, use about 75% less energy, and produce 90% less heat while delivering more light per Watt. For example, a 25 Watt CFL provides about 1800 lumens, compared to 1750 lumens from a 100 Watt incandescent lamp.
CFLs have come a long way since their introduction. They provide a flicker-free, soft-white light and come in a variety of styles. The traditional “twist” bulb is the most popular, but if you need a more stylish version, consider the household style. This bulb is similar in design to a standard incandescent bulb but uses significantly less energy. The 3-way CFL is perfect for reading lamps or conversation areas where ambience is a factor. The globe style is designed for bathroom fixtures.
Here’s a groovy advantage – CFLs save you money! One 20 Watt CFL (replaces a 75 Watt incandescent bulb) will save you $66 dollars over the life of the bulb (based on $.12 KWH). Replace one 100 Watt incandescent bulb with a 25 Watt CFL and save a whopping $74 dollars over the life of the bulb (hey – that’s 21 extra Mocha Latte’s).
Not only are CFLs the smart choice – they’re hip too. The EPA reports that CFLs are the environmentally responsible choice. Replacing one incandescent light bulb with an energy saving CFL bulb reduced carbon monoxide emission to the atmosphere by 1,000 pounds.
According to the Department of Energy, as a nation we spend about one-quarter of our electricity budget on lighting, or more than $37 billion annually. And while traditional incandescent light bulbs are less expensive to purchase, they are much more expensive to operate. Incandescents aren’t such a bright idea after all (sorry – couldn’t resist).
We are aware that our life is closely tied to electricity. When the power goes out, we have almost nothing, as the work of most of the devices we use to power instructed. Therefore, it is not surprising that a city is a dead city without electricity. Almost all human activities that work. Can continue to work only a few activities. If today we are very current need, surely we will be more dependent on electricity in the future. Meanwhile, most of the electric power plants throughout the world rely on fossil fuels, non-renewable energy for the production of electricity. Recognizing that fossil fuels are not renewable, but sooner or later we will have no fossil fuels to generate electricity. If we do not create another alternative instead of using fossil fuels, it is very likely that we are able to provide crisis in the future will be limited our activities. Some countries, has now moved some of their sources of power from fossil fuels to hydropower. You’ll leave some of their electricity needs in hydropower. Until now, China is a country with the highest use of electricity from hydropower. The three largest power stations of hydroelectric power generated in China, Brazil and Venezuela. The countries concede that the hydroelectric energy produced is much greater than current production of fossil fuels at the same budget. Also, hydropower is renewable so there are good prospects for the future for its continuity. However, the shift in hydroelectric plants does not seem to be easily performed.
The revolution of electricity can be as difficult as the revolution in politics, because people have been the last system. People need to adapt to new alternatives. It is only a matter of time when the switching process complete, since it can be carried out for reasons of human life and the continuity of human life and better generation. Some years ago, the consumption of these alternative source of electricity has reached 16% worldwide and some 150 countries started to move on as a source of hydroelectric power station. Now they are trying to make up their minds to move completely on hydropower, once all the preparation, the society and the environment ready for the big change.
People always have the hope of a better life in the future, so that they understand that the sources of non-renewable energy is low or the next. Therefore, think of other alternatives that are not used because they may be renewable, and one of the alternatives is to hydropower. Since two-thirds of the earth’s water, it is very possible to make hydropower as an energy source. Therefore, people do not need to worry about the electricity in the future will be a necessity expensive. To maximize the efficiency of the production of hydroelectric power to produce electricity, some big countries are among their need for power while continuously carry out a study on the best switching of hydro electricity. In short, it is only a matter of time in the power of water is the primary energy source.